{"id":113869,"date":"2026-10-07T19:49:21","date_gmt":"2026-10-07T11:49:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/113869.html"},"modified":"2026-10-07T19:49:21","modified_gmt":"2026-10-07T11:49:21","slug":"javaee-%e5%88%9d%e9%98%b6-%e5%a4%9a%e7%ba%bf%e7%a8%8b%ef%bc%88%e5%88%9d%e9%98%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/113869.html","title":{"rendered":"JavaEE \u521d\u9636 - \u591a\u7ebf\u7a0b\uff08\u521d\u9636\uff09"},"content":{"rendered":"<h3>1\u3001\u8ba4\u8bc6\u7ebf\u7a0b&#xff08;Thread&#xff09;<\/h3>\n<h4>1.1 \u6982\u5ff5<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u7ebf\u7a0b<\/p>\n<p>\u6211\u4eec\u4e4b\u524d\u7f16\u5199\u7684 Java \u7a0b\u5e8f&#xff0c;\u5927\u591a\u6570\u90fd\u662f\u8fd9\u6837\u7684&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7a0b\u5e8f\u5f00\u59cb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7a0b\u5e8f\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7a0b\u5e8f\u6267\u884c\u7684\u65f6\u5019&#xff0c;\u4ee3\u7801\u57fa\u672c\u4e0a\u662f\u6309\u7167\u4e00\u5b9a\u7684\u987a\u5e8f\u6267\u884c\u3002<\/p>\n<p>\u8fd9\u79cd\u6267\u884c\u65b9\u5f0f&#xff0c;\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u4e00\u4e2a\u7ebf\u7a0b\u4ece\u5934\u5230\u5c3e\u8d1f\u8d23\u6267\u884c\u4e00\u6761\u6267\u884c\u6d41\u3002<\/p>\n<p>\u90a3\u4e48\u4ec0\u4e48\u662f\u7ebf\u7a0b&#xff1f;<\/p>\n<p>\u7b80\u5355\u6765\u8bf4&#xff0c;\u7ebf\u7a0b&#xff08;Thread&#xff09;\u662f\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u8c03\u5ea6\u548c\u6267\u884c\u7684\u57fa\u672c\u5355\u4f4d\u4e4b\u4e00\u3002<\/p>\n<p>\u5728 Java \u7a0b\u5e8f\u4e2d&#xff0c;\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u591a\u4e2a\u7ebf\u7a0b&#xff0c;\u8ba9\u591a\u4e2a\u4efb\u52a1\u540c\u65f6\u5904\u4e8e\u6267\u884c\u72b6\u6001\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1&#xff1a;\u4e0b\u8f7d\u6587\u4ef6<br \/>\n\u7ebf\u7a0b2&#xff1a;\u64ad\u653e\u97f3\u4e50<br \/>\n\u7ebf\u7a0b3&#xff1a;\u5904\u7406\u7528\u6237\u8bf7\u6c42<br \/>\n\u7ebf\u7a0b4&#xff1a;\u5237\u65b0\u754c\u9762<\/p>\n<p>\u8fd9\u4e9b\u4efb\u52a1\u5c31\u53ef\u4ee5\u7531\u4e0d\u540c\u7684\u7ebf\u7a0b\u6765\u6267\u884c\u3002<\/p>\n<p>\u6240\u4ee5&#xff0c;\u591a\u7ebf\u7a0b&#xff0c;\u5c31\u662f\u5728\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u540c\u65f6\u5b58\u5728\u591a\u4e2a\u7ebf\u7a0b&#xff0c;\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u5171\u540c\u5b8c\u6210\u4efb\u52a1\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u9700\u8981\u7ebf\u7a0b<\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6b63\u5728\u5f00\u53d1\u4e00\u4e2a\u804a\u5929\u8f6f\u4ef6\u3002<\/p>\n<p>\u7528\u6237\u6253\u5f00\u8f6f\u4ef6\u4ee5\u540e&#xff0c;\u9700\u8981\u540c\u65f6\u5b8c\u6210&#xff1a;<\/p>\n<p>\u63a5\u6536\u6d88\u606f<br \/>\n\u53d1\u9001\u6d88\u606f<br \/>\n\u64ad\u653e\u63d0\u793a\u97f3<br \/>\n\u5237\u65b0\u804a\u5929\u754c\u9762<br \/>\n\u4e0a\u4f20\u6587\u4ef6<\/p>\n<p>\u5982\u679c\u6240\u6709\u4e8b\u60c5\u90fd\u7531\u4e00\u4e2a\u7ebf\u7a0b\u5b8c\u6210&#xff1a;<\/p>\n<p>\u63a5\u6536\u6d88\u606f -&gt; \u53d1\u9001\u6d88\u606f -&gt; \u64ad\u653e\u58f0\u97f3 -&gt; \u5237\u65b0\u754c\u9762 -&gt; \u4e0a\u4f20\u6587\u4ef6<\/p>\n<p>\u90a3\u4e48\u67d0\u4e00\u4e2a\u4efb\u52a1\u5982\u679c\u6267\u884c\u65f6\u95f4\u6bd4\u8f83\u957f&#xff0c;\u5c31\u53ef\u80fd\u5f71\u54cd\u5176\u4ed6\u4efb\u52a1\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u4e0a\u4f20\u6587\u4ef6 -&gt; \u9700\u8981 10 \u79d2 -&gt; \u5176\u4ed6\u4efb\u52a1\u53ea\u80fd\u7b49\u5f85<\/p>\n<p>\u7528\u6237\u5c31\u53ef\u80fd\u611f\u89c9\u8f6f\u4ef6\u5361\u4f4f\u4e86\u3002<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u591a\u4e2a\u7ebf\u7a0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1 -&gt; \u63a5\u6536\u6d88\u606f<br \/>\n\u7ebf\u7a0b2 -&gt; \u53d1\u9001\u6d88\u606f<br \/>\n\u7ebf\u7a0b3 -&gt; \u64ad\u653e\u58f0\u97f3<br \/>\n\u7ebf\u7a0b4 -&gt; \u4e0a\u4f20\u6587\u4ef6<\/p>\n<p>\u591a\u4e2a\u4efb\u52a1\u5c31\u53ef\u4ee5\u4ea4\u9519\u6267\u884c\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u7ebf\u7a0b\u6700\u76f4\u63a5\u7684\u4ef7\u503c&#xff0c;\u628a\u4e00\u4e2a\u7a0b\u5e8f\u4e2d\u7684\u4e0d\u540c\u4efb\u52a1\u62c6\u5206\u6210\u591a\u4e2a\u6267\u884c\u6d41\u3002<\/p>\n<p>3.\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b<\/p>\n<p>\u5b66\u4e60\u7ebf\u7a0b\u4e4b\u524d&#xff0c;\u5fc5\u987b\u5148\u7406\u89e3\u8fdb\u7a0b\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u542f\u52a8\u4e00\u4e2a Java \u7a0b\u5e8f\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u521b\u5efa\u4e00\u4e2a\u8fdb\u7a0b\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>1.\u542f\u52a8 Java \u7a0b\u5e8f<\/p>\n<p>2.\u64cd\u4f5c\u7cfb\u7edf\u521b\u5efa\u8fdb\u7a0b<\/p>\n<p>3.JVM \u5728\u8fdb\u7a0b\u4e2d\u8fd0\u884c<\/p>\n<p>\u4e00\u4e2a\u8fdb\u7a0b\u91cc\u9762\u53c8\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u7ebf\u7a0b&#xff0c;\u6240\u4ee5\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u8fdb\u7a0b\u662f\u8d44\u6e90\u5206\u914d\u7684\u57fa\u672c\u5355\u4f4d\u4e4b\u4e00&#xff0c;\u7ebf\u7a0b\u662f\u8fdb\u7a0b\u5185\u90e8\u7684\u6267\u884c\u6d41\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u5fae\u4fe1\u8fdb\u7a0b\u4e2d&#xff0c;\u6709\u63a5\u6536\u6d88\u606f\u7ebf\u7a0b\u3001\u53d1\u9001\u6d88\u606f\u7ebf\u7a0b\u3001\u7f51\u7edc\u7ebf\u7a0b\u3001\u754c\u9762\u7ebf\u7a0b&#xff0c;\u4e0d\u540c\u8fdb\u7a0b\u4e4b\u95f4\u901a\u5e38\u62e5\u6709\u76f8\u4e92\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<p>\u800c\u540c\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u7684\u7ebf\u7a0b&#xff0c;\u5171\u4eab\u8fdb\u7a0b\u4e2d\u7684\u5927\u90e8\u5206\u8d44\u6e90\u3002<\/p>\n<p>\u8fd9\u65e2\u662f\u591a\u7ebf\u7a0b\u7684\u4f18\u52bf&#xff0c;\u4e5f\u662f\u540e\u9762\u51fa\u73b0\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684\u91cd\u8981\u539f\u56e0\u3002<\/p>\n<p>4.Java \u7ebf\u7a0b\u548c\u64cd\u4f5c\u7cfb\u7edf\u7ebf\u7a0b\u7684\u5173\u7cfb<\/p>\n<p>\u6211\u4eec\u5728 Java \u4e2d\u5199&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> t <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u91cc\u521b\u5efa\u7684\u662f Java \u5c42\u9762\u7684 Thread \u5bf9\u8c61\u3002<\/p>\n<p>\u5f53\u6211\u4eect.start();\u4e4b\u540e&#xff0c;Java \u4f1a\u8bf7\u6c42\u8fd0\u884c\u73af\u5883\u521b\u5efa\u5e76\u8c03\u5ea6\u76f8\u5e94\u7684\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1\u3002<\/p>\n<p>\u73b0\u4ee3 Java \u8fd8\u63d0\u4f9b\u4e86\u865a\u62df\u7ebf\u7a0b&#xff08;Virtual Thread&#xff09;\u3002Java 21 \u8d77&#xff0c;\u865a\u62df\u7ebf\u7a0b\u6210\u4e3a\u6b63\u5f0f\u7279\u6027&#xff1b;\u865a\u62df\u7ebf\u7a0b\u7531 JVM \u8c03\u5ea6&#xff0c;\u53ef\u4ee5\u5927\u91cf\u521b\u5efa&#xff0c;\u5e76\u4e0d\u7b49\u540c\u4e8e\u4f20\u7edf\u7684\u5e73\u53f0\u7ebf\u7a0b\u3002<\/p>\n<p>5.\u5e76\u53d1\u548c\u5e76\u884c\u7684\u7b80\u5355\u7406\u89e3<\/p>\n<p>\u8fd9\u4e24\u4e2a\u6982\u5ff5\u975e\u5e38\u5bb9\u6613\u6df7\u6dc6\u3002<\/p>\n<p>\u5e76\u53d1<\/p>\n<p>\u5e76\u53d1&#xff1a;\u591a\u4e2a\u4efb\u52a1\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u4ea4\u66ff\u63a8\u8fdb\u3002<\/p>\n<p>\u4f8b\u5982\u53ea\u6709\u4e00\u4e2a CPU \u6838\u5fc3&#xff1a;<\/p>\n<p>\u65f6\u95f4 \u2192<br \/>\n\u7ebf\u7a0b1&#xff1a;\u2588\u2588\u2588\u2588    \u2588\u2588\u2588\u2588<br \/>\n\u7ebf\u7a0b2&#xff1a;    \u2588\u2588\u2588\u2588    \u2588\u2588\u2588\u2588<\/p>\n<p>CPU \u5728\u4e0d\u540c\u7ebf\u7a0b\u4e4b\u95f4\u8fdb\u884c\u5207\u6362\u3002<\/p>\n<p>\u4ece\u5b8f\u89c2\u4e0a\u770b&#xff0c;\u7ebf\u7a0b1\u548c\u7ebf\u7a0b2\u540c\u65f6\u63a8\u8fdb&#xff0c;\u8fd9\u5c31\u662f\u5e76\u53d1\u3002<\/p>\n<p>\u5e76\u884c<\/p>\n<p>\u5e76\u884c&#xff1a;\u591a\u4e2a\u4efb\u52a1\u5728\u540c\u4e00\u65f6\u523b\u771f\u6b63\u540c\u65f6\u6267\u884c\u3002<\/p>\n<p>\u4f8b\u5982\u6709\u591a\u4e2a CPU \u6838\u5fc3&#xff1a;<\/p>\n<p>CPU\u6838\u5fc31 \u2192 \u7ebf\u7a0b1 \u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588<br \/>\nCPU\u6838\u5fc32 \u2192 \u7ebf\u7a0b2 \u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588<br \/>\nCPU\u6838\u5fc33 \u2192 \u7ebf\u7a0b3 \u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588\u2588<\/p>\n<p>\u591a\u4e2a\u4efb\u52a1\u771f\u6b63\u540c\u65f6\u8fd0\u884c\u3002<\/p>\n<p>\u53ef\u4ee5\u7b80\u5355\u8bb0\u4e00\u4e0b&#xff1a;<\/p>\n<p>\u5e76\u53d1&#xff1a;\u4e00\u4e2a\u65f6\u95f4\u6bb5\u5185\u4e00\u8d77\u63a8\u8fdb<br \/>\n\u5e76\u884c&#xff1a;\u540c\u4e00\u65f6\u523b\u771f\u6b63\u4e00\u8d77\u6267\u884c<\/p>\n<p>\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u65e2\u53ef\u4ee5\u4f53\u73b0\u5e76\u53d1&#xff0c;\u4e5f\u53ef\u4ee5\u5728\u591a\u6838 CPU \u4e0a\u5b9e\u73b0\u771f\u6b63\u7684\u5e76\u884c\u3002<\/p>\n<h4>1.2 \u7b2c\u4e00\u4e2a\u591a\u7ebf\u7a0b\u7a0b\u5e8f<\/h4>\n<p>1.\u521b\u5efa\u7b2c\u4e00\u4e2a\u7ebf\u7a0b<\/p>\n<p>\u5148\u6765\u770b\u6700\u7b80\u5355\u7684\u7ebf\u7a0b\u521b\u5efa\u65b9\u5f0f\u3002<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u65b0\u7ebf\u7a0b\u6b63\u5728\u8fd0\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91ccthread.start();\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u8c03\u7528 start() \u4e4b\u540e&#xff0c;JVM \u4f1a\u8c03\u5ea6\u8fd9\u4e2a\u7ebf\u7a0b\u5f00\u59cb\u6267\u884c\u5b83\u7684 run() \u65b9\u6cd5\u3002Oracle \u5b98\u65b9\u6559\u7a0b\u4e5f\u628a\u201c\u5b9a\u4e49 run() \u4e2d\u7684\u4efb\u52a1\u201d\u548c\u8c03\u7528 start() \u542f\u52a8\u7ebf\u7a0b\u4f5c\u4e3a\u521b\u5efa\u7ebf\u7a0b\u7684\u57fa\u672c\u6a21\u5f0f\u3002<\/p>\n<p>2.\u89c2\u5bdf\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u8ba9\u4e3b\u7ebf\u7a0b\u548c\u65b0\u7ebf\u7a0b\u540c\u65f6\u6253\u5370\u3002<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u65b0\u7ebf\u7a0b&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e3b\u7ebf\u7a0b&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd0\u884c\u7ed3\u679c\u662f\u968f\u673a\u7684&#xff0c;\u591a\u4e2a\u7ebf\u7a0b\u7684\u6267\u884c\u987a\u5e8f\u901a\u5e38\u4e0d\u662f\u56fa\u5b9a\u7684\u3002<\/p>\n<p>3.\u7406\u89e3\u591a\u7ebf\u7a0b\u6267\u884c\u7684\u4e0d\u786e\u5b9a\u6027<\/p>\n<p>\u521a\u5b66\u7684\u65f6\u5019\u770b\u5230\u8fd9\u4e2a&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;main&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f1a\u4e0b\u610f\u8bc6\u8ba4\u4e3a&#xff0c;\u4e00\u5b9a\u5148\u6267\u884c thread&#xff0c;\u518d\u6267\u884c main<\/p>\n<p>\u8fd9\u662f\u4e0d\u5bf9\u7684\u3002<\/p>\n<p>start() \u7684\u4f5c\u7528\u662f&#xff1a;\u8ba9\u7ebf\u7a0b\u8fdb\u5165\u53ef\u8c03\u5ea6\u6267\u884c\u7684\u72b6\u6001\u3002<\/p>\n<p>\u800c\u4e0d\u662f\u73b0\u5728\u7acb\u523b\u6267\u884c\u8fd9\u4e2a\u7ebf\u7a0b&#xff0c;\u5e76\u4e14\u6267\u884c\u5b8c\u4ee5\u540e\u518d\u6267\u884c\u4e0b\u9762\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u5177\u4f53\u8c01\u5148\u6267\u884c\u3001\u6267\u884c\u591a\u4e45\u3001\u4ec0\u4e48\u65f6\u5019\u5207\u6362&#xff0c;\u662f\u7531 JVM \u548c\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u8c03\u5ea6\u673a\u5236\u5171\u540c\u51b3\u5b9a\u7684\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u6267\u884c\u987a\u5e8f\u901a\u5e38\u5177\u6709\u4e0d\u786e\u5b9a\u6027\u3002<\/p>\n<h4>1.3 \u521b\u5efa\u7ebf\u7a0b<\/h4>\n<p>1.\u7ee7\u627f Thread \u7c7b<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">MyThread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91cc\u7684\u5173\u952e\u662fclass MyThread extends Thread&#xff0c;\u5e76\u91cd\u5199\u4e86run()&#xff0c;\u6700\u540estart()\u542f\u52a8\u7ebf\u7a0b\u3002<\/p>\n<p>Oracle \u5b98\u65b9\u6559\u7a0b\u540c\u6837\u628a\u201c\u7ee7\u627f Thread \u5e76\u91cd\u5199 run()\u201d\u5217\u4e3a\u521b\u5efa\u7ebf\u7a0b\u7684\u57fa\u672c\u65b9\u5f0f\u4e4b\u4e00\u3002<\/p>\n<p>2.\u5b9e\u73b0 Runnable \u63a5\u53e3<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyRunnable<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Runnable<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Runnable<\/span> runnable <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyRunnable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>runnable<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>Runnable -&gt; \u8868\u793a\u4e00\u4e2a\u4efb\u52a1<\/p>\n<p>Thread -&gt; \u8d1f\u8d23\u6267\u884c\u8fd9\u4e2a\u4efb\u52a1<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u5c06\u4efb\u52a1\u548c\u7ebf\u7a0b\u8fdb\u884c\u4e86\u5206\u79bb\u3002<\/p>\n<p>\u8fd9\u4e5f\u662f\u5b98\u65b9\u6559\u7a0b\u6bd4\u8f83\u63a8\u8350\u7406\u89e3\u7684\u65b9\u5f0f&#xff0c;\u56e0\u4e3a\u4efb\u52a1\u5bf9\u8c61\u4e0d\u9700\u8981\u7ee7\u627f Thread&#xff0c;\u66f4\u52a0\u7075\u6d3b\u3002<\/p>\n<p>3.\u4f7f\u7528\u533f\u540d\u5185\u90e8\u7c7b<\/p>\n<p>\u5982\u679c\u53ea\u4f7f\u7528\u4e00\u6b21&#xff0c;\u5c31\u6ca1\u6709\u5fc5\u8981\u4e13\u95e8\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u3002<\/p>\n<p>\u53ef\u4ee5&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Runnable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u6837\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u3002<\/p>\n<p>4.\u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f<\/p>\n<p>\u56e0\u4e3a Runnable \u662f\u4e00\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3&#xff0c;\u6240\u4ee5\u53ef\u4ee5\u4f7f\u7528 Lambda\u3002<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u751a\u81f3\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5199\u6210&#xff1a;<\/p>\n<p><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u79cd\u5199\u6cd5\u5728\u73b0\u4ee3 Java \u4ee3\u7801\u4e2d\u975e\u5e38\u5e38\u89c1\u3002<\/p>\n<p>5.\u5176\u4ed6\u521b\u5efa\u7ebf\u7a0b\u7684\u65b9\u5f0f\u7b80\u5355\u4ecb\u7ecd<\/p>\n<p>Java \u8fd8\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u7684\u5e76\u53d1\u5de5\u5177\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>Callable<br \/>\nFuture<br \/>\nExecutor<br \/>\nExecutorService<br \/>\nThreadPoolExecutor<\/p>\n<p>\u540e\u9762\u6211\u4eec\u4f1a\u5b66\u4e60\u7ebf\u7a0b\u6c60\u3002<\/p>\n<h4>1.4 \u591a\u7ebf\u7a0b\u7684\u4f18\u52bf\u2014\u2014\u589e\u52a0\u8fd0\u884c\u901f\u5ea6<\/h4>\n<p>1.\u5355\u7ebf\u7a0b\u6267\u884c<\/p>\n<p>\u5047\u8bbe\u73b0\u5728\u6709\u4e24\u4e2a\u4efb\u52a1&#xff1a;<\/p>\n<p>\u4efb\u52a1A&#xff1a;\u6267\u884c1000\u6b21\u8ba1\u7b97<br \/>\n\u4efb\u52a1B&#xff1a;\u6267\u884c1000\u6b21\u8ba1\u7b97<\/p>\n<p>\u5355\u7ebf\u7a0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1<br \/>\n \u2193<br \/>\n\u6267\u884c\u4efb\u52a1A<br \/>\n \u2193<br \/>\n\u6267\u884c\u4efb\u52a1B<\/p>\n<p>\u5047\u8bbe&#xff1a;<\/p>\n<p>\u4efb\u52a1A&#xff1a;5\u79d2<br \/>\n\u4efb\u52a1B&#xff1a;5\u79d2<\/p>\n<p>\u603b\u65f6\u95f4\u5927\u7ea6\u4e3a10\u79d2\u3002<\/p>\n<p>2.\u591a\u7ebf\u7a0b\u6267\u884c<\/p>\n<p>\u5982\u679c\u4e24\u4e2a\u4efb\u52a1\u5f7c\u6b64\u72ec\u7acb&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1 \u2192 \u4efb\u52a1A<br \/>\n\u7ebf\u7a0b2 \u2192 \u4efb\u52a1B<\/p>\n<p>\u5728\u591a\u6838 CPU \u7684\u60c5\u51b5\u4e0b&#xff0c;\u4e24\u4e2a\u4efb\u52a1\u53ef\u80fd\u771f\u6b63\u5e76\u884c\u6267\u884c\u3002<\/p>\n<p>\u7406\u8bba\u4e0a&#xff1a;<\/p>\n<p>\u4efb\u52a1A&#xff1a;5\u79d2<br \/>\n\u4efb\u52a1B&#xff1a;5\u79d2<\/p>\n<p>\u603b\u65f6\u95f4\u5927\u7ea6\u4e3a5\u79d2<\/p>\n<p>\u6240\u4ee5\u591a\u7ebf\u7a0b\u53ef\u80fd\u63d0\u9ad8\u7a0b\u5e8f\u6548\u7387\u3002<\/p>\n<p>3.\u591a\u7ebf\u7a0b\u4e3a\u4ec0\u4e48\u53ef\u80fd\u63d0\u9ad8\u7a0b\u5e8f\u6548\u7387<\/p>\n<p>\u4e3b\u8981\u539f\u56e0\u662f\u53ef\u4ee5\u8ba9\u591a\u4e2a\u72ec\u7acb\u4efb\u52a1\u540c\u65f6\u63a8\u8fdb\u3002<\/p>\n<p>\u5c24\u5176\u662fCPU \u5bc6\u96c6\u578b\u4efb\u52a1\u3001IO \u5bc6\u96c6\u578b\u4efb\u52a1\u3002<\/p>\n<p>\u5728\u5408\u9002\u7684\u573a\u666f\u4e0b&#xff0c;\u591a\u7ebf\u7a0b\u53ef\u4ee5\u5145\u5206\u5229\u7528 CPU \u6216\u8005\u5728\u7b49\u5f85 IO \u65f6\u8ba9\u5176\u4ed6\u4efb\u52a1\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1 -&gt; \u7b49\u5f85\u7f51\u7edc\u6570\u636e<\/p>\n<p>\u7ebf\u7a0b2 -&gt; \u7ee7\u7eed\u6267\u884c\u8ba1\u7b97<\/p>\n<p>\u8fd9\u6837 CPU \u5c31\u4e0d\u4f1a\u56e0\u4e3a\u7ebf\u7a0b1\u7b49\u5f85\u7f51\u7edc\u800c\u5b8c\u5168\u95f2\u7f6e\u3002<\/p>\n<p>4.\u591a\u7ebf\u7a0b\u4e3a\u4ec0\u4e48\u4e0d\u4e00\u5b9a\u66f4\u5feb<\/p>\n<p>\u5f88\u591a\u4eba\u4f1a\u8bef\u4ee5\u4e3a\u7ebf\u7a0b\u8d8a\u591a&#xff0c;\u7a0b\u5e8f\u8d8a\u5feb\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\u5b8c\u5168\u4e0d\u662f\u3002<\/p>\n<p>\u56e0\u4e3a\u7ebf\u7a0b\u672c\u8eab\u4e5f\u6709\u6210\u672c&#xff1a;<\/p>\n<p>\u521b\u5efa\u7ebf\u7a0b<br \/>\n\u7ebf\u7a0b\u8c03\u5ea6<br \/>\n\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362<br \/>\n\u7ebf\u7a0b\u540c\u6b65<br \/>\n\u7ebf\u7a0b\u4e4b\u95f4\u7ade\u4e89\u8d44\u6e90<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1<br \/>\n\u7ebf\u7a0b2<br \/>\n\u7ebf\u7a0b3<br \/>\n\u7ebf\u7a0b4<br \/>\n\u2026\u2026<br \/>\n\u7ebf\u7a0b1000<\/p>\n<p>\u5982\u679c\u4efb\u52a1\u672c\u8eab\u975e\u5e38\u5c0f&#xff0c;\u7ebf\u7a0b\u7ba1\u7406\u548c\u5207\u6362\u7684\u6210\u672c\u53ef\u80fd\u6bd4\u771f\u6b63\u6267\u884c\u4efb\u52a1\u7684\u6210\u672c\u8fd8\u9ad8\u3002<\/p>\n<p>\u800c\u4e14\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u4fee\u6539\u5171\u4eab\u6570\u636e&#xff0c;\u8fd8\u4f1a\u5f15\u5165&#xff1a;<\/p>\n<p>\u7ebf\u7a0b\u5b89\u5168<br \/>\n\u9501\u7ade\u4e89<br \/>\n\u6b7b\u9501<br \/>\n\u5185\u5b58\u53ef\u89c1\u6027<\/p>\n<p>\u7b49\u95ee\u9898\u3002<\/p>\n<p>\u6240\u4ee5\u591a\u7ebf\u7a0b\u4e0d\u662f\u4e3a\u4e86\u7b80\u5355\u5730\u589e\u52a0\u7ebf\u7a0b\u6570\u91cf&#xff0c;\u800c\u662f\u4e3a\u4e86\u5408\u7406\u5229\u7528\u5e76\u53d1\u80fd\u529b\u3002<\/p>\n<h3>2\u3001Thread \u7c7b\u53ca\u5e38\u89c1\u65b9\u6cd5<\/h3>\n<h4>2.1 Thread \u7684\u5e38\u89c1\u6784\u9020\u65b9\u6cd5<\/h4>\n<p>1.Thread()<\/p>\n<p>\u6700\u7b80\u5355&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7136\u540e\u53ef\u4ee5\u7ee7\u627f Thread \u5e76\u91cd\u5199 run()\u3002<\/p>\n<p>2.Thread(Runnable target)<\/p>\n<p><span class=\"token class-name\">Runnable<\/span> task <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nthread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>Runnable -&gt; \u4efb\u52a1<br \/>\nThread -&gt; \u6267\u884c\u4efb\u52a1<\/p>\n<p>3.Thread(String name)<\/p>\n<p>\u53ef\u4ee5\u6307\u5b9a\u7ebf\u7a0b\u540d\u79f0&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;worker&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0b\u540d\u79f0\u5bf9\u4e8e\u8c03\u8bd5\u3001\u65e5\u5fd7\u3001\u6392\u67e5\u95ee\u9898\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n<p>4.Thread(Runnable target, String name)<\/p>\n<p>\u540c\u65f6\u6307\u5b9a\u4efb\u52a1\u548c\u540d\u79f0&#xff1a;<\/p>\n<p><span class=\"token class-name\">Runnable<\/span> task <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;worker&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>2.2 Thread \u7684\u51e0\u4e2a\u5e38\u89c1\u5c5e\u6027<\/h4>\n<p>1.\u7ebf\u7a0b\u540d\u79f0<\/p>\n<p>\u83b7\u53d6&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e3b\u7ebf\u7a0b\u901a\u5e38\u53eb main \u3002<\/p>\n<p>\u81ea\u5b9a\u4e49\u7ebf\u7a0b\u53ef\u4ee5&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> t <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;myThread&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>t<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa myThread \u3002<\/p>\n<p>2.\u7ebf\u7a0b\u4f18\u5148\u7ea7<\/p>\n<p>\u53ef\u4ee5&#xff1a;<\/p>\n<p>\u7ebf\u7a0b\u5bf9\u8c61<span class=\"token punctuation\">.<\/span><span class=\"token function\">setPriority<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">MAX_PRIORITY<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f18\u5148\u7ea7\u8303\u56f4\u901a\u5e38\u662f&#xff1a;1 ~ 10<\/p>\n<p>\u5e38\u91cf&#xff1a;<\/p>\n<p><span class=\"token constant\">MIN_PRIORITY<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n<span class=\"token constant\">NORM_PRIORITY<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5<\/span><br \/>\n<span class=\"token constant\">MAX_PRIORITY<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><\/p>\n<p>\u4f46\u662f\u9700\u8981\u6ce8\u610f&#xff0c;\u7ebf\u7a0b\u4f18\u5148\u7ea7\u4e0d\u662f\u4e25\u683c\u7684\u6267\u884c\u987a\u5e8f\u4fdd\u8bc1\u3002<\/p>\n<p>\u4e0d\u80fd\u56e0\u4e3a&#xff0c;thread.setPriority(10);\u8bbe\u7f6e\u4e86\u4e4b\u540e&#xff0c;\u5c31\u8ba4\u4e3a\u7ebf\u7a0b\u4e00\u5b9a\u5148\u6267\u884c\u3002<\/p>\n<p>\u7ebf\u7a0b\u8c03\u5ea6\u4ecd\u7136\u662f\u590d\u6742\u7684\u8fd0\u884c\u65f6\u884c\u4e3a\u3002<\/p>\n<p>3.\u5b88\u62a4\u7ebf\u7a0b<\/p>\n<p>Java \u4e2d\u7ebf\u7a0b\u53ef\u4ee5\u5206\u4e3a&#xff1a;<\/p>\n<ul>\n<li>\u7528\u6237\u7ebf\u7a0b -&gt; \u4e5f\u53eb\u524d\u53f0\u7ebf\u7a0b<\/li>\n<li>\u5b88\u62a4\u7ebf\u7a0b -&gt; \u4e5f\u53eb\u540e\u53f0\u7ebf\u7a0b<\/li>\n<\/ul>\n<p>\u7528\u6237\u7ebf\u7a0b&#xff1a;\u7a0b\u5e8f\u4e2d\u7684\u6838\u5fc3\u7ebf\u7a0b&#xff0c;JVM \u5fc5\u987b\u7b49\u5f85\u6240\u6709\u7528\u6237\u7ebf\u7a0b\u7ed3\u675f\u540e\u624d\u4f1a\u9000\u51fa\u3002<\/p>\n<p>\u5b88\u62a4\u7ebf\u7a0b&#xff1a;\u4e3a\u5176\u4ed6\u7ebf\u7a0b\u63d0\u4f9b\u670d\u52a1\u7684\u8f85\u52a9\u7ebf\u7a0b&#xff0c;\u5f53\u6240\u6709\u7528\u6237\u7ebf\u7a0b\u7ed3\u675f\u540e&#xff0c;\u5b88\u62a4\u7ebf\u7a0b\u4f1a\u88ab JVM \u81ea\u52a8\u7ec8\u6b62&#xff0c;JVM \u968f\u4e4b\u9000\u51fa\u3002\u901a\u5e38\u7528\u4e8e\u6267\u884c\u4e00\u4e9b\u540e\u53f0\u8f85\u52a9\u5de5\u4f5c\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u540e\u53f0\u5de5\u4f5c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">setDaemon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/*<br \/>\nsetDaemon(true) \u5fc5\u987b\u5728 start() \u4e4b\u524d\u8c03\u7528\u3002<br \/>\n\u5982\u679c\u7ebf\u7a0b\u5df2\u7ecf\u542f\u52a8&#xff0c;\u518d\u8c03\u7528 setDaemon() \u4f1a\u629b\u51fa IllegalThreadStateException\u3002<br \/>\n*\/<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u91cc thread \u5c31\u662f\u4e00\u4e2a\u5b88\u62a4\u7ebf\u7a0b\u3002<\/p>\n<p>\u5f53 JVM \u4e2d\u53ea\u5269\u4e0b\u5b88\u62a4\u7ebf\u7a0b\u65f6&#xff0c;JVM \u53ef\u4ee5\u7ed3\u675f&#xff0c;\u6240\u4ee5&#xff0c;\u5b88\u62a4\u7ebf\u7a0b\u4e00\u822c\u4e0d\u80fd\u627f\u62c5\u5fc5\u987b\u4fdd\u8bc1\u5b8c\u6210\u7684\u6838\u5fc3\u4e1a\u52a1\u3002<\/p>\n<p>\u6ce8\u610f&#xff1a;<\/p>\n<p>\u53ea\u8981\u8fd8\u6709\u4e00\u4e2a\u7528\u6237\u7ebf\u7a0b\u6ca1\u6709\u7ed3\u675f&#xff0c;JVM \u5c31\u4e0d\u4f1a\u9000\u51fa\u3002<br \/>\n\u5f53\u6240\u6709\u7528\u6237\u7ebf\u7a0b\u90fd\u7ed3\u675f\u540e&#xff0c;JVM \u4f1a\u76f4\u63a5\u9000\u51fa&#xff0c;\u4e0d\u7ba1\u5b88\u62a4\u7ebf\u7a0b\u662f\u5426\u8fd8\u5728\u8fd0\u884c\u3002<\/p>\n<p>4.\u7ebf\u7a0b\u662f\u5426\u5b58\u6d3b<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528thread.isAlive();\u5224\u65ad\u7ebf\u7a0b\u662f\u5426\u8fd8\u5904\u4e8e\u5b58\u6d3b\u72b6\u6001\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">isAlive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">isAlive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0b\u542f\u52a8\u4ee5\u540e&#xff0c;\u76f4\u5230\u6267\u884c\u7ed3\u675f\u4e4b\u524d&#xff0c;\u901a\u5e38\u90fd\u5904\u4e8e\u5b58\u6d3b\u72b6\u6001\u3002<\/p>\n<h4>2.3 \u542f\u52a8\u4e00\u4e2a\u7ebf\u7a0b\u2014\u2014start()<\/h4>\n<p>1.start() \u7684\u4f5c\u7528<\/p>\n<p>\u542f\u52a8\u7ebf\u7a0b\u3002<\/p>\n<p>thread.start();\u8fd9\u662f\u7ebf\u7a0b\u771f\u6b63\u8fdb\u5165\u6267\u884c\u6d41\u7a0b\u7684\u5165\u53e3\u3002<\/p>\n<p>2.start() \u548c run() \u7684\u533a\u522b<\/p>\n<p>\u8fd9\u662f\u6bd4\u8f83\u5bb9\u6613\u641e\u6df7\u7684\u95ee\u9898\u3002<\/p>\n<p>\u770b\u4e0b\u9762\u4f8b\u5b50&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u8c03\u7528&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90a3\u4e48\u5b83\u53ea\u662f\u666e\u901a\u7684\u65b9\u6cd5\u8c03\u7528&#xff0c;\u6267\u884c\u5b83\u7684\u4ecd\u7136\u662f\u5f53\u524d\u7ebf\u7a0b\u3002<\/p>\n<p>\u800c thread.start() \u624d\u662f\u542f\u52a8\u65b0\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>3.\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528 run() \u542f\u52a8\u7ebf\u7a0b<\/p>\n<p>\u4f8b\u5982\u4e3b\u7ebf\u7a0bmain\u6267\u884c thread.run();<\/p>\n<p>\u5b9e\u9645\u4e0a&#xff1a;<\/p>\n<p>main -&gt; \u8c03\u7528 thread.run() -&gt; run \u4e2d\u4ee3\u7801\u4ecd\u7136\u7531 main \u7ebf\u7a0b\u4e2d\u6267\u884c<\/p>\n<p>\u800c thread.start() \u5219\u662f&#xff1a;<\/p>\n<p>main -&gt; start() -&gt; \u65b0\u7ebf\u7a0b\u88ab\u8c03\u5ea6 -&gt; \u65b0\u7ebf\u7a0b\u6267\u884c run()<\/p>\n<p>\u56e0\u6b64&#xff1a;<\/p>\n<p>run() -&gt; \u666e\u901a\u65b9\u6cd5\u8c03\u7528<\/p>\n<p>start() -&gt; \u542f\u52a8\u65b0\u7ebf\u7a0b<\/p>\n<p>Oracle \u5f53\u524d Thread API \u4e5f\u660e\u786e\u6307\u51fa&#xff0c;run() \u662f\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1\u7684\u65b9\u6cd5&#xff0c;\u800c start() \u7528\u4e8e\u8c03\u5ea6\u7ebf\u7a0b\u5f00\u59cb\u72ec\u7acb\u6267\u884c&#xff1b;\u4e00\u4e2a\u7ebf\u7a0b\u6700\u591a\u53ea\u80fd\u542f\u52a8\u4e00\u6b21\u3002<\/p>\n<p>4.\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u91cd\u590d\u8c03\u7528 start()<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hello&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nthread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7b2c\u4e8c\u6b21\u8c03\u7528\u4f1a\u629b\u51fa&#xff1a;<\/p>\n<p>IllegalThreadStateException<\/p>\n<p>\u56e0\u4e3a\u4e00\u4e2a Thread \u5bf9\u8c61\u53ea\u80fd\u88ab\u542f\u52a8\u4e00\u6b21\u3002<\/p>\n<p>\u7ebf\u7a0b\u7ed3\u675f\u4ee5\u540e&#xff0c;\u4e5f\u4e0d\u80fd\u901a\u8fc7\u518d\u6b21 start() \u628a\u5b83\u91cd\u65b0\u542f\u52a8\u3002<\/p>\n<h4>2.4 \u4e2d\u65ad\u4e00\u4e2a\u7ebf\u7a0b<\/h4>\n<p>1.interrupt() \u662f\u4ec0\u4e48<\/p>\n<p>\u7ebf\u7a0b\u6709\u65f6\u5019\u4f1a\u6267\u884c\u5f88\u957f\u65f6\u95f4\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4e2d&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u8ba9\u5b83\u7ed3\u675f&#xff0c;\u53ef\u4ee5\u4f7f\u7528&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f46\u662f interrupt() \u4e0d\u662f\u5f3a\u5236\u6740\u6b7b\u7ebf\u7a0b\u3002<\/p>\n<p>2.interrupt \u5e76\u4e0d\u662f\u5f3a\u5236\u6740\u6b7b\u7ebf\u7a0b<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4e2d&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u7ebf\u7a0b\u81ea\u5df1\u7684\u4ee3\u7801\u6839\u672c\u6ca1\u6709\u68c0\u67e5\u4e2d\u65ad\u72b6\u6001&#xff1a;<\/p>\n<p>interrupt() -&gt; \u7ebf\u7a0b\u53ef\u80fd\u7ee7\u7eed\u8fd0\u884c<\/p>\n<p>\u6240\u4ee5&#xff0c;interrupt() \u66f4\u51c6\u786e\u5730\u8bf4\u662f\u5411\u7ebf\u7a0b\u53d1\u51fa\u201c\u5e0c\u671b\u4f60\u505c\u6b62\/\u5904\u7406\u4e2d\u65ad\u201d\u7684\u4fe1\u53f7\u3002<\/p>\n<p>3.\u4e2d\u65ad\u6807\u5fd7<\/p>\n<p>\u53ef\u4f7f\u7528 Thread.currentThread().isInterrupted() \u67e5\u770b\u5f53\u524d\u7ebf\u7a0b\u7684\u4e2d\u65ad\u72b6\u6001\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isInterrupted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4e2d&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e3b\u7ebf\u7a0b\u6267\u884c\u540e&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90a3\u4e48\u65b0\u7ebf\u7a0b\u6700\u7ec8\u5c31\u53ef\u4ee5\u7ed3\u675f thread \u7ebf\u7a0b\u7684\u5faa\u73af\u4e86\u3002<\/p>\n<p>4.\u963b\u585e\u72b6\u6001\u4e0b\u7684\u4e2d\u65ad<\/p>\n<p>\u5982\u679c\u7ebf\u7a0b\u6b63\u5728 Thread.sleep(\u2026) \u7b49\u53ef\u4e2d\u65ad\u963b\u585e\u64cd\u4f5c\u4e2d&#xff1a;<\/p>\n<p><span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u88ab\u4e2d\u65ad&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6b64\u65f6\u53e6\u4e00\u4e2a\u7ebf\u7a0b&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53ef\u80fd\u4f7f sleep() \u629b\u51fa InterruptedException \u8fd9\u4e2a\u5f02\u5e38&#xff0c;\u4ece\u800c\u8ba9\u7ebf\u7a0b\u83b7\u5f97\u5904\u7406\u9000\u51fa\u673a\u4f1a\u3002<\/p>\n<p>5.\u5982\u4f55\u6b63\u786e\u7ed3\u675f\u4e00\u4e2a\u7ebf\u7a0b<\/p>\n<p>\u6bd4\u8f83\u63a8\u8350\u7684\u601d\u60f3&#xff1a;<\/p>\n<p>1.\u4e0d\u8981\u5f3a\u5236\u6740\u6b7b<\/p>\n<p>2.\u53d1\u51fa\u4e2d\u65ad\u4fe1\u53f7<\/p>\n<p>3.\u7ebf\u7a0b\u81ea\u5df1\u68c0\u67e5<\/p>\n<p>4.\u5b8c\u6210\u5fc5\u8981\u6e05\u7406<\/p>\n<p>5.\u6b63\u5e38\u9000\u51fa<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isInterrupted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5de5\u4f5c\u4e2d&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u91cc\u5c24\u5176\u8981\u6ce8\u610f&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u662f\u4e3a\u4e86\u5728\u6355\u83b7 InterruptedException \u540e\u6062\u590d\u4e2d\u65ad\u72b6\u6001&#xff0c;\u8ba9\u66f4\u4e0a\u5c42\u4ee3\u7801\u4ecd\u7136\u80fd\u591f\u89c2\u5bdf\u5230\u8fd9\u4e2a\u4e2d\u65ad\u8bf7\u6c42\u3002<\/p>\n<h4>2.5 \u7b49\u5f85\u4e00\u4e2a\u7ebf\u7a0b\u2014\u2014join()<\/h4>\n<p>1.join() \u7684\u4f5c\u7528<\/p>\n<p>\u5047\u8bbe&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u6267\u884c\u4efb\u52a1<\/p>\n<p>\u7ebf\u7a0bB\u9700\u8981\u7b49\u5f85\u7ebf\u7a0bA\u5b8c\u6210<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528&#xff1a;<\/p>\n<p>threadA<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8868\u793a\u5f53\u524d\u7ebf\u7a0b\u7b49\u5f85 threadA \u6267\u884c\u7ed3\u675f\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u9700\u8981\u7b49\u5f85\u7ebf\u7a0b<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb\u8ba1\u7b97&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6a21\u62df\u8017\u65f6\u64cd\u4f5c<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u83b7\u53d6\u8ba1\u7b97\u7ed3\u679c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u4e3b\u7ebf\u7a0b\u76f4\u63a5\u7ee7\u7eed\u6267\u884c&#xff1a;<\/p>\n<p>\u4e3b\u7ebf\u7a0b -&gt; \u542f\u52a8\u8ba1\u7b97\u7ebf\u7a0b -&gt; \u9a6c\u4e0a\u83b7\u53d6\u7ed3\u679c<\/p>\n<p>\u8ba1\u7b97\u7ebf\u7a0b\u53ef\u80fd\u8fd8\u6ca1\u6709\u8ba1\u7b97\u5b8c\u6210\u3002<\/p>\n<p>\u6240\u4ee5\u53ef\u4ee5&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nthread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u83b7\u53d6\u7ed3\u679c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53d8\u6210&#xff1a;<\/p>\n<p>\u542f\u52a8\u7ebf\u7a0b -&gt; \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f -&gt; \u83b7\u53d6\u7ed3\u679c<\/p>\n<p>3.join() \u7684\u57fa\u672c\u4f7f\u7528<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u6267\u884c\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>4.join() \u548c\u7ebf\u7a0b\u6267\u884c\u987a\u5e8f<\/p>\n<p>\u6ce8\u610f&#xff0c;join() \u53ef\u4ee5\u4eba\u4e3a\u5efa\u7acb\u4e00\u79cd\u7b49\u5f85\u5173\u7cfb\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>main<br \/>\n \u2193<br \/>\nstart thread<br \/>\n \u2193<br \/>\njoin<br \/>\n \u2193<br \/>\n\u7b49\u5f85 thread<br \/>\n \u2193<br \/>\nthread\u7ed3\u675f<br \/>\n \u2193<br \/>\nmain\u7ee7\u7eed<\/p>\n<p>\u6240\u4ee5&#xff0c;join \u53ef\u4ee5\u8ba9\u539f\u672c\u4e0d\u786e\u5b9a\u7684\u6267\u884c\u5173\u7cfb\u53d8\u6210\u660e\u786e\u7684\u7b49\u5f85\u5173\u7cfb\u3002<\/p>\n<h4>2.6 \u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u5f15\u7528<\/h4>\n<p>1.currentThread()<\/p>\n<p>\u4f7f\u7528&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u83b7\u53d6\u5f53\u524d\u6b63\u5728\u6267\u884c\u4ee3\u7801\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>2.\u4ec0\u4e48\u662f\u5f53\u524d\u7ebf\u7a0b<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91cc\u5f53\u524d\u7ebf\u7a0b\u5c31\u662f main \u3002<\/p>\n<p>\u5982\u679c\u5728\u7ebf\u7a0b\u4efb\u52a1\u4e2d&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90a3\u4e48\u5f53\u524d\u7ebf\u7a0b\u5c31\u662f\u65b0\u521b\u5efa\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>3.\u521b\u5efa\u7ebf\u7a0b\u4e0e\u5f53\u524d\u7ebf\u7a0b\u7684\u533a\u522b<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u7ebf\u7a0b&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f53\u524d\u7ebf\u7a0b&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread \u662f\u4e00\u4e2a Thread \u5bf9\u8c61\u3002<\/p>\n<p>\u800c Thread.currentThread() \u8868\u793a\u5f53\u524d\u6b63\u5728\u6267\u884c\u8fd9\u6bb5\u4ee3\u7801\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>\u8fd9\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6982\u5ff5\u3002<\/p>\n<h4>2.7 \u4f11\u7720\u5f53\u524d\u7ebf\u7a0b<\/h4>\n<p>1.sleep()<\/p>\n<p>\u8ba9\u5f53\u524d\u7ebf\u7a0b\u4f11\u7720&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8868\u793a\u5927\u7ea6\u6682\u505c 1000ms &#xff0c;\u4e5f\u5c31\u662f1\u79d2\u3002<\/p>\n<p>2.sleep() \u7684\u57fa\u672c\u4f7f\u7528<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SleepDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd0\u884c\u65f6\u6bcf\u6b21\u8f93\u51fa\u4e4b\u95f4\u5927\u7ea6\u95f4\u9694 1 \u79d2\u3002<\/p>\n<p>3.sleep() \u5bf9\u7ebf\u7a0b\u72b6\u6001\u7684\u5f71\u54cd<\/p>\n<p>\u7ebf\u7a0b\u8c03\u7528 sleep() \u4e4b\u540e&#xff0c;\u4f1a\u8fdb\u5165 TIMED_WAITING \u72b6\u6001\u3002<\/p>\n<p>\u4f11\u7720\u7ed3\u675f\u4ee5\u540e\u7531 TIMED_WAITING \u8fd9\u4e2a\u72b6\u6001&#xff0c;\u53d8\u4e3a RUNNABLE \u8fd9\u4e2a\u72b6\u6001&#xff0c;\u7136\u540e\u7b49\u5f85\u8c03\u5ea6\u6267\u884c\u3002<\/p>\n<p>4.sleep() \u662f\u5426\u91ca\u653e\u9501<\/p>\n<p>\u8fd9\u662f\u9762\u8bd5\u4e2d\u975e\u5e38\u7ecf\u5178\u7684\u95ee\u9898&#xff1a;<\/p>\n<p>sleep \u4f1a\u4e0d\u4f1a\u91ca\u653e\u9501&#xff1f;<\/p>\n<p>\u7b54\u6848&#xff1a;\u4e0d\u4f1a\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ebf\u7a0b\u867d\u7136\u7761\u7720\u4e86&#xff0c;\u4f46\u662f\u5b83\u4ecd\u7136\u6301\u6709 lock &#xff0c;\u56e0\u6b64\u5176\u4ed6\u7ebf\u7a0b\u4ecd\u7136\u65e0\u6cd5\u8fdb\u5165\u9700\u8981\u540c\u4e00\u628a\u9501\u7684\u540c\u6b65\u533a\u57df\u3002<\/p>\n<p>\u8fd9\u4e00\u70b9\u548c wait() \u5b8c\u5168\u4e0d\u540c&#xff0c;\u540e\u9762\u5b66\u4e60 wait\/notify \u65f6\u4f1a\u91cd\u70b9\u5bf9\u6bd4\u3002<\/p>\n<h3>3\u3001\u7ebf\u7a0b\u7684\u72b6\u6001<\/h3>\n<h4>3.1 \u89c2\u5bdf\u7ebf\u7a0b\u7684\u6240\u6709\u72b6\u6001<\/h4>\n<p>Java \u7684 Thread.State \u5b9a\u4e49\u4e86\u516d\u79cd\u7ebf\u7a0b\u72b6\u6001&#xff1a;<\/p>\n<p>NEW<br \/>\nRUNNABLE<br \/>\nBLOCKED<br \/>\nWAITING<br \/>\nTIMED_WAITING<br \/>\nTERMINATED<\/p>\n<p>1.NEW<\/p>\n<p>\u7ebf\u7a0b\u5bf9\u8c61\u521b\u5efa\u51fa\u6765&#xff0c;\u4f46\u662f\u8fd8\u6ca1\u6709\u8c03\u7528 start() \u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hello&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6b64\u65f6&#xff0c;thread\u7684\u72b6\u6001\u5c31\u662fnew\u3002<\/p>\n<p>2.RUNNABLE<\/p>\n<p>\u8c03\u7528 thread.start() \u4ee5\u540e&#xff0c;\u7ebf\u7a0b\u8fdb\u5165\u53ef\u8fd0\u884c\u72b6\u6001\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f&#xff0c;Java \u7684 RUNNABLE \u662f\u4e00\u4e2a\u6bd4\u8f83\u5bbd\u6cdb\u7684\u72b6\u6001\u3002<\/p>\n<p>\u5b83\u65e2\u53ef\u4ee5\u8868\u793a\u6b63\u5728\u8fd0\u884c&#xff0c;\u4e5f\u53ef\u4ee5\u8868\u793a\u5df2\u7ecf\u51c6\u5907\u8fd0\u884c&#xff0c;\u7b49\u5f85 CPU \u8c03\u5ea6\u3002<\/p>\n<p>\u6240\u4ee5 Java \u4e2d\u6ca1\u6709\u5355\u72ec\u5b9a\u4e49 RUNNING \u72b6\u6001\u3002<\/p>\n<p>3.BLOCKED<\/p>\n<p>\u8868\u793a\u6392\u961f\u7b49\u7740\u5176\u4ed6\u4e8b\u60c5\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4&#xff1a;\u7ebf\u7a0bA\u6301\u6709 lock &#xff0c;\u4f46\u7ebf\u7a0bB\u5c1d\u8bd5\u83b7\u53d6 lock&#xff0c;\u8fd9\u65f6\u5019\u662f\u83b7\u53d6\u4e0d\u5230\u7684&#xff0c;\u6240\u4ee5\u7ebf\u7a0bB\u5c31\u662f BLOCKED \u8fd9\u4e2a\u72b6\u6001\u3002<\/p>\n<p>4.WAITING<\/p>\n<p>\u4e5f\u8868\u793a\u6392\u961f\u7b49\u7740\u5176\u4ed6\u4e8b\u60c5&#xff0c;\u4f46\u662f\u8fd9\u4e2a\u662f\u6ca1\u6709\u8d85\u65f6\u65f6\u95f4\u7684\u7b49\u5f85\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6216\u8005&#xff1a;<\/p>\n<p>object<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90fd\u53ef\u80fd\u8ba9\u7ebf\u7a0b\u8fdb\u5165 WAITING \u7684\u72b6\u6001\u3002<\/p>\n<p>5.TIMED_WAITING<\/p>\n<p>\u5e26\u65f6\u95f4\u9650\u5236\u7684\u7b49\u5f85\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6216\u8005&#xff1a;<\/p>\n<p>object<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6216\u8005&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90fd\u53ef\u80fd\u8fdb\u5165 TIMED_WAITING \u72b6\u6001\u3002<\/p>\n<p>6.TERMINATED<\/p>\n<p>\u7ebf\u7a0b\u6267\u884c\u5b8c\u6210\u4ee5\u540e&#xff0c;TERMINATED \u8868\u793a\u7ebf\u7a0b\u5df2\u7ecf\u7ed3\u675f\u3002<\/p>\n<p>\u6ce8\u610f&#xff1a;TERMINATED \u4ee5\u540e\u4e0d\u80fd\u518d\u6b21 start() \u542f\u52a8\u7ebf\u7a0b\u3002<\/p>\n<h4>3.2 \u7ebf\u7a0b\u72b6\u6001\u548c\u72b6\u6001\u8f6c\u79fb\u7684\u610f\u4e49<\/h4>\n<p>1.\u4e3a\u4ec0\u4e48\u9700\u8981\u4e86\u89e3\u7ebf\u7a0b\u72b6\u6001<\/p>\n<p>\u56e0\u4e3a\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u51fa\u73b0\u95ee\u9898\u65f6&#xff0c;\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u56de\u7b54&#xff1a;<\/p>\n<p>\u8fd9\u4e2a\u7ebf\u7a0b\u73b0\u5728\u5728\u5e72\u4ec0\u4e48&#xff1f;<br \/>\n\u4e3a\u4ec0\u4e48\u6ca1\u6709\u6267\u884c&#xff1f;<br \/>\n\u4e3a\u4ec0\u4e48\u4e00\u76f4\u7b49\u5f85&#xff1f;<br \/>\n\u4e3a\u4ec0\u4e48\u83b7\u53d6\u4e0d\u5230\u9501&#xff1f;<br \/>\n\u4e3a\u4ec0\u4e48\u4e00\u76f4\u4e0d\u7ed3\u675f&#xff1f;<\/p>\n<p>\u8fd9\u4e9b\u95ee\u9898\u6700\u7ec8\u90fd\u53ef\u4ee5\u901a\u8fc7&#xff1a;\u7ebf\u7a0b\u72b6\u6001 &#043; \u7ebf\u7a0b\u4e4b\u95f4\u7684\u5173\u7cfb\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<p>2.\u4e0d\u540c\u72b6\u6001\u5206\u522b\u4ee3\u8868\u4ec0\u4e48<\/p>\n<p>\u53ef\u4ee5\u603b\u7ed3&#xff1a;<\/p>\n<table>\n<tr>\u72b6\u6001\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>NEW<\/td>\n<td>\u521b\u5efa\u4e86\u7ebf\u7a0b\u5bf9\u8c61&#xff0c;\u8fd8\u6ca1\u542f\u52a8<\/td>\n<\/tr>\n<tr>\n<td>RUNNABLE<\/td>\n<td>\u53ef\u8fd0\u884c\/\u6b63\u5728\u8fd0\u884c<\/td>\n<\/tr>\n<tr>\n<td>BLOCKED<\/td>\n<td>\u7b49\u5f85\u83b7\u53d6 synchronized \u9501<\/td>\n<\/tr>\n<tr>\n<td>WAITING<\/td>\n<td>\u65e0\u9650\u671f\u7b49\u5f85<\/td>\n<\/tr>\n<tr>\n<td>TIMED_WAITING<\/td>\n<td>\u9650\u65f6\u7b49\u5f85<\/td>\n<\/tr>\n<tr>\n<td>TERMINATED<\/td>\n<td>\u6267\u884c\u7ed3\u675f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>3.Java \u7ebf\u7a0b\u72b6\u6001\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7ebf\u7a0b\u72b6\u6001\u7684\u533a\u522b<\/p>\n<p>\u8fd9\u91cc\u8981\u6ce8\u610f&#xff0c;Java \u7684\u516d\u79cd\u72b6\u6001\u4e0d\u662f\u64cd\u4f5c\u7cfb\u7edf\u7ebf\u7a0b\u72b6\u6001\u7684\u7b80\u5355\u4e00\u4e00\u6620\u5c04\u3002<\/p>\n<p>Java Thread.State \u662f JVM \u5c42\u9762\u5bf9\u7ebf\u7a0b\u751f\u547d\u5468\u671f\u7684\u62bd\u8c61\u3002<\/p>\n<p>\u4f8b\u5982 RUNNABLE \u5728 Java \u5c42\u9762\u53ef\u4ee5\u8986\u76d6&#xff1a;<\/p>\n<p>\u6b63\u5728\u8fd0\u884c<br \/>\n\u7b49\u5f85 CPU \u8c03\u5ea6<\/p>\n<p>\u56e0\u6b64\u4e0d\u80fd\u7b80\u5355\u8ba4\u4e3a&#xff1a;RUNNABLE &#061; CPU \u6b63\u5728\u6267\u884c\u3002<\/p>\n<p>4.Java \u4e2d\u4e3a\u4ec0\u4e48\u6ca1\u6709\u5355\u72ec\u7684 RUNNING \u72b6\u6001<\/p>\n<p>\u56e0\u4e3a Java \u5c06 Ready\u3001Running \u7b49\u6267\u884c\u76f8\u5173\u72b6\u6001\u7edf\u4e00\u62bd\u8c61\u4e3a RUNNABLE &#xff0c;\u8fd9\u6837 Java \u5c42\u9762\u7684\u7ebf\u7a0b\u72b6\u6001\u6a21\u578b\u66f4\u52a0\u7b80\u5355\u3002<\/p>\n<p>\u6240\u4ee5\u770b\u5230 RUNNABLE&#xff0c;\u4e0d\u4ee3\u8868\u7ebf\u7a0b\u4e00\u5b9a\u6b63\u5728 CPU \u4e0a\u6267\u884c\u3002<\/p>\n<h4>3.3 \u89c2\u5bdf\u7ebf\u7a0b\u7684\u72b6\u6001\u548c\u8f6c\u79fb<\/h4>\n<p>\u53ef\u4ee5\u901a\u8fc7&#xff1a;<\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">getState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u83b7\u53d6\u7ebf\u7a0b\u72b6\u6001\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">getState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">getState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">getState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">getState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53ef\u80fd\u89c2\u5bdf\u5230&#xff1a;<\/p>\n<p>NEW<br \/>\nRUNNABLE<br \/>\nTIMED_WAITING<br \/>\nTERMINATED<\/p>\n<p>\u5177\u4f53\u65f6\u523b\u53ef\u80fd\u7565\u6709\u4e0d\u540c&#xff0c;\u56e0\u4e3a\u7ebf\u7a0b\u8c03\u5ea6\u5177\u6709\u4e0d\u786e\u5b9a\u6027\u3002<\/p>\n<h3>4\u3001\u591a\u7ebf\u7a0b\u5e26\u6765\u7684\u98ce\u9669\u2014\u2014\u7ebf\u7a0b\u5b89\u5168&#xff08;\u91cd\u70b9&#xff09;<\/h3>\n<p>\u8fd9\u4e00\u7ae0\u5f00\u59cb\u8fdb\u5165\u591a\u7ebf\u7a0b\u771f\u6b63\u7684\u6838\u5fc3\u3002<\/p>\n<p>\u524d\u9762\u6211\u4eec\u4e00\u76f4\u5728\u8bb2\u591a\u7ebf\u7a0b\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<p>\u4f46\u662f\u591a\u7ebf\u7a0b\u4e5f\u4f1a\u5e26\u6765\u65b0\u7684\u95ee\u9898\u3002<\/p>\n<p>\u5176\u4e2d\u6700\u91cd\u8981\u7684\u95ee\u9898\u4e4b\u4e00\u5c31\u662f\u7ebf\u7a0b\u5b89\u5168\u3002<\/p>\n<h4>4.1 \u89c2\u5bdf\u7ebf\u7a0b\u4e0d\u5b89\u5168<\/h4>\n<p>\u5148\u770b\u4e00\u4e2a\u7ecf\u5178\u6848\u4f8b\u3002<\/p>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u53d8\u91cf&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7136\u540e\u521b\u5efa\u591a\u4e2a\u7ebf\u7a0b&#xff0c;\u6bcf\u4e2a\u7ebf\u7a0b\u6267\u884c&#xff1a;<\/p>\n<p>count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6211\u4eec\u671f\u5f85\u7684\u7ed3\u679c\u662f20000&#xff0c;\u4f46\u5b9e\u9645\u8fd0\u884c\u7ed3\u679c\u53ef\u80fd\u5c0f\u4e8e20000\u3002<\/p>\n<p>\u4f8b\u598218342\u6216\u800519427&#xff0c;\u751a\u81f3\u6bcf\u6b21\u8fd0\u884c\u7ed3\u679c\u90fd\u4e0d\u540c\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u95ee\u9898\u3002<\/p>\n<h4>4.2 \u7ebf\u7a0b\u5b89\u5168\u7684\u6982\u5ff5<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u7ebf\u7a0b\u5b89\u5168<\/p>\n<p>\u7b80\u5355\u6765\u8bf4&#xff1a;\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\u67d0\u6bb5\u4ee3\u7801\u65f6&#xff0c;\u7a0b\u5e8f\u4ecd\u7136\u80fd\u591f\u5f97\u5230\u7b26\u5408\u9884\u671f\u7684\u7ed3\u679c&#xff0c;\u90a3\u4e48\u8fd9\u6bb5\u4ee3\u7801\u53ef\u4ee5\u8ba4\u4e3a\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/p>\n<p>\u53cd\u8fc7\u6765&#xff1a;\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\u65f6\u53ef\u80fd\u4ea7\u751f\u9519\u8bef\u7ed3\u679c&#xff0c;\u5c31\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u3002<\/p>\n<p>2.\u4ec0\u4e48\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1 \u2192 count&#043;&#043;<\/p>\n<p>\u7ebf\u7a0b2 \u2192 count&#043;&#043;<\/p>\n<p>\u5982\u679c\u6ca1\u6709\u5408\u7406\u540c\u6b65&#xff0c;\u5c31\u53ef\u80fd\u51fa\u73b0&#xff1a;<\/p>\n<p>\u6570\u636e\u8986\u76d6<br \/>\n\u6570\u636e\u4e22\u5931<br \/>\n\u7ed3\u679c\u4e0d\u4e00\u81f4<\/p>\n<p>3.\u4e3a\u4ec0\u4e48\u7ebf\u7a0b\u5b89\u5168\u5f88\u91cd\u8981<\/p>\n<p>\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d&#xff0c;\u4e00\u65e6\u7ebf\u7a0b\u5b89\u5168\u51fa\u73b0\u95ee\u9898&#xff1a;<\/p>\n<p>\u6570\u636e\u9519\u8bef<br \/>\n\u8ba2\u5355\u91cd\u590d<br \/>\n\u5e93\u5b58\u8d85\u5356<br \/>\n\u4f59\u989d\u9519\u8bef<br \/>\n\u72b6\u6001\u5f02\u5e38<\/p>\n<p>\u4ee5\u4e0a\u90fd\u6709\u53ef\u80fd\u53d1\u751f\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u5546\u54c1\u5e93\u5b58 &#061; 1<\/p>\n<p>\u7528\u6237A\u8d2d\u4e70<br \/>\n\u7528\u6237B\u8d2d\u4e70<\/p>\n<p>\u5982\u679c\u4e24\u4e2a\u7ebf\u7a0b\u540c\u65f6\u5224\u65ad&#xff1a;<\/p>\n<p>\u5e93\u5b58 &gt; 0<\/p>\n<p>\u7136\u540e\u540c\u65f6\u6263\u5e93\u5b58&#xff1a;<\/p>\n<p>1 \u2192 0<br \/>\n1 \u2192 0<\/p>\n<p>\u6700\u7ec8\u53ef\u80fd\u51fa\u73b0&#xff0c;\u4e24\u4e2a\u7528\u6237\u90fd\u4e70\u6210\u529f&#xff0c;\u4f46\u5e93\u5b58\u5b9e\u9645\u4e0a\u53ea\u6709\u4e00\u4e2a\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u4e0d\u5b89\u5168\u7684\u95ee\u9898\u3002<\/p>\n<h4>4.3 \u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u539f\u56e0<\/h4>\n<p>1.\u7ebf\u7a0b\u8c03\u5ea6\u7684\u4e0d\u786e\u5b9a\u6027<\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u6267\u884c&#xff1a;\u7ebf\u7a0b1\u3001\u7ebf\u7a0b2\u3001\u7ebf\u7a0b3\u6267\u884c\u987a\u5e8f\u4e0d\u662f\u56fa\u5b9a\u7684\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1&#xff1a;\u8bfb\u53d6<br \/>\n\u7ebf\u7a0b2&#xff1a;\u8bfb\u53d6<br \/>\n\u7ebf\u7a0b1&#xff1a;\u4fee\u6539<br \/>\n\u7ebf\u7a0b2&#xff1a;\u4fee\u6539<\/p>\n<p>\u5c31\u53ef\u80fd\u4ea7\u751f\u95ee\u9898\u3002<\/p>\n<p>2.\u591a\u7ebf\u7a0b\u5171\u4eab\u6570\u636e<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u5230\u8fd9\u4e2a count &#xff0c;\u8fd9\u5c31\u662f\u5171\u4eab\u6570\u636e\u3002<\/p>\n<p>\u591a\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u901a\u5e38\u5c31\u53d1\u751f\u5728\u5171\u4eab\u6570\u636e &#043; \u5e76\u53d1\u4fee\u6539\u8fd9\u6837\u7684\u573a\u666f\u4e2d\u3002<\/p>\n<p>3.\u64cd\u4f5c\u4e0d\u5177\u6709\u539f\u5b50\u6027<\/p>\n<p>\u91cd\u70b9\u770b&#xff1a;<\/p>\n<p>count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5f88\u591a\u4eba\u4ee5\u4e3a count&#043;&#043; \u5c31\u662f\u4e00\u6b65\u64cd\u4f5c\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\u53ef\u4ee5\u7c97\u7565\u7406\u89e3\u6210&#xff1a;<\/p>\n<p>\u8bfb\u53d6 count -&gt; \u52a0 1 -&gt; \u5199\u56de count<\/p>\n<p>\u5047\u8bbe count &#061; 10 &#xff0c;\u4e24\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c&#xff1a;<\/p>\n<p>\u7ebf\u7a0b1&#xff1a;\u8bfb\u53d610<br \/>\n\u7ebf\u7a0b2&#xff1a;\u8bfb\u53d610<\/p>\n<p>\u7ebf\u7a0b1&#xff1a;10&#043;1&#061;11<br \/>\n\u7ebf\u7a0b2&#xff1a;10&#043;1&#061;11<\/p>\n<p>\u7ebf\u7a0b1&#xff1a;\u5199\u56de11<br \/>\n\u7ebf\u7a0b2&#xff1a;\u5199\u56de11<\/p>\n<p>\u6700\u540e count &#061; 11&#xff0c;\u800c\u4e0d\u662f12<\/p>\n<p>\u8fd9\u5c31\u662f\u5178\u578b\u7684\u590d\u5408\u64cd\u4f5c\u4e0d\u662f\u539f\u5b50\u7684\u3002<\/p>\n<p>4.\u5185\u5b58\u53ef\u89c1\u6027\u95ee\u9898<\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab\u53d8\u91cf\u65f6&#xff0c;\u8fd8\u53ef\u80fd\u51fa\u73b0&#xff1a;\u7ebf\u7a0bA\u4fee\u6539\u53d8\u91cf\u4e4b\u540e&#xff0c;\u7ebf\u7a0bB\u6ca1\u6709\u53ca\u65f6\u89c2\u5bdf\u5230\u6700\u65b0\u503c\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u53ef\u89c1\u6027\u95ee\u9898\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">boolean<\/span> running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0bA\u4e2d\u68c0\u6d4b\u8fd9\u4e2a\u53d8\u91cf&#xff1a;<\/p>\n<p><span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>running<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ebf\u7a0bB\u4fee\u6539\u8fd9\u4e2a\u53d8\u91cf&#xff1a;<\/p>\n<p>running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7406\u8bba\u4e0a\u6211\u4eec\u5e0c\u671b\u7ebf\u7a0bA\u770b\u5230 false &#xff0c;\u7136\u540e\u7ed3\u675f\u3002<\/p>\n<p>\u4f46\u5728\u6ca1\u6709\u5efa\u7acb\u9002\u5f53\u5185\u5b58\u53ef\u89c1\u6027\u4fdd\u8bc1\u65f6&#xff0c;\u7ebf\u7a0b\u4e4b\u95f4\u5bf9\u5171\u4eab\u53d8\u91cf\u7684\u89c2\u5bdf\u4e0d\u80fd\u7b80\u5355\u6309\u7167\u201c\u4e00\u4e2a\u7ebf\u7a0b\u5199\u4e86&#xff0c;\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7acb\u523b\u5c31\u80fd\u770b\u5230\u201d\u7684\u65b9\u5f0f\u7406\u89e3\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u540e\u9762&#xff1a;<\/p>\n<p><span class=\"token keyword\">volatile<\/span><br \/>\n<span class=\"token keyword\">synchronized<\/span><\/p>\n<p>\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n<p>5.\u6307\u4ee4\u91cd\u6392\u5e8f\u95ee\u9898<\/p>\n<p>\u73b0\u4ee3\u7f16\u8bd1\u5668\u3001JIT \u548c\u5904\u7406\u5668\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd&#xff0c;\u53ef\u80fd\u5bf9\u90e8\u5206\u64cd\u4f5c\u8fdb\u884c\u91cd\u6392\u5e8f\u3002<\/p>\n<p>\u5355\u7ebf\u7a0b\u60c5\u51b5\u4e0b&#xff0c;\u53ea\u8981\u6700\u7ec8\u6548\u679c\u7b26\u5408\u7a0b\u5e8f\u8bed\u4e49&#xff0c;\u4e00\u4e9b\u6267\u884c\u987a\u5e8f\u53ef\u4ee5\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n<p>\u4f46\u662f\u591a\u7ebf\u7a0b\u60c5\u51b5\u4e0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA<br \/>\n\u7ebf\u7a0bB<\/p>\n<p>\u4e4b\u95f4\u7684\u89c2\u5bdf\u5173\u7cfb\u53ef\u80fd\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p>\u56e0\u6b64 Java \u5185\u5b58\u6a21\u578b\u9700\u8981\u63d0\u4f9b&#xff1a;\u53ef\u89c1\u6027\u3001\u6709\u5e8f\u6027\u65b9\u9762\u7684\u4fdd\u8bc1\u3002<\/p>\n<p>\u73b0\u5728\u6682\u65f6\u4e0d\u9700\u8981\u6df1\u5165 CPU \u7f13\u5b58\u4e00\u81f4\u6027\u534f\u8bae\u3001\u6307\u4ee4\u7ea7\u6d41\u6c34\u7ebf\u7b49\u5e95\u5c42\u7ec6\u8282\u3002<\/p>\n<p>\u5148\u8bb0\u4f4f&#xff1a;\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e0d\u4ec5\u6709\u201c\u64cd\u4f5c\u987a\u5e8f\u201d\u7684\u95ee\u9898&#xff0c;\u8fd8\u6709\u201c\u4ec0\u4e48\u65f6\u5019\u770b\u5230\u5176\u4ed6\u7ebf\u7a0b\u4fee\u6539\u201d\u7684\u95ee\u9898\u3002<\/p>\n<h4>4.4 \u89e3\u51b3\u4e4b\u524d\u7684\u7ebf\u7a0b\u4e0d\u5b89\u5168\u95ee\u9898<\/h4>\n<p>\u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898&#xff0c;\u4e0d\u80fd\u4e00\u4e0a\u6765\u5c31\u5199&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span><\/p>\n<p>\u66f4\u91cd\u8981\u7684\u662f\u5148\u5206\u6790\u95ee\u9898\u3002<\/p>\n<p>1.\u627e\u5230\u5171\u4eab\u6570\u636e<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u90fd\u4f1a\u8bbf\u95ee count &#xff0c;\u6240\u4ee5 count \u5c31\u662f\u5171\u4eab\u6570\u636e\u3002<\/p>\n<p>2.\u627e\u5230\u4e34\u754c\u533a<\/p>\n<p>\u6240\u8c13\u4e34\u754c\u533a&#xff0c;\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a&#xff1a;\u8bbf\u95ee\u5171\u4eab\u6570\u636e&#xff0c;\u5e76\u4e14\u9700\u8981\u4fdd\u8bc1\u5e76\u53d1\u5b89\u5168\u7684\u4ee3\u7801\u533a\u57df\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5c31\u662f\u9700\u8981\u91cd\u70b9\u4fdd\u62a4\u7684\u533a\u57df\u3002<\/p>\n<p>3.\u627e\u5230\u9700\u8981\u4fdd\u8bc1\u539f\u5b50\u6027\u7684\u64cd\u4f5c<\/p>\n<p>\u6211\u4eec\u771f\u6b63\u9700\u8981\u4fdd\u8bc1\u7684\u662f&#xff1a;\u8bfb\u53d6 &#043; \u4fee\u6539 &#043; \u5199\u56de\u4e0d\u80fd\u88ab\u5176\u4ed6\u7ebf\u7a0b\u5728\u4e2d\u95f4\u63d2\u5165\u7834\u574f\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u4e5f\u5c31\u662f\u5e0c\u671b&#xff1a;\u7ebf\u7a0b1\u4e2d\u7684\u8bfb\u53d6 \u2192 \u4fee\u6539 \u2192 \u5199\u56de\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u5b8c\u6210\u3002<\/p>\n<p>4.\u4e3a synchronized \u505a\u94fa\u57ab<\/p>\n<p>\u4e8e\u662f\u6211\u4eec\u5c31\u9700\u8981\u4e00\u79cd\u673a\u5236&#xff1a;\u540c\u4e00\u65f6\u95f4&#xff0c;\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u5165\u5173\u952e\u4ee3\u7801<\/p>\n<p>\u8fd9\u5c31\u662f&#xff1a;\u4e92\u65a5\u3002<\/p>\n<p>Java\u4e2d&#xff0c;synchronized \u5c31\u53ef\u4ee5\u5b8c\u6210\u8fd9\u4ef6\u4e8b\u60c5\u3002<\/p>\n<h3>5\u3001synchronized \u5173\u952e\u5b57\u2014\u2014\u76d1\u89c6\u5668\u9501&#xff08;Monitor Lock&#xff09;<\/h3>\n<h4>5.1 synchronized \u7684\u7279\u6027<\/h4>\n<p>1.\u4e92\u65a5<\/p>\n<p>synchronized \u6700\u6838\u5fc3\u7684\u7279\u6027\u5c31\u662f\u540c\u4e00\u628a\u9501\u5728\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u7531\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5982\u679c&#xff1a;\u7ebf\u7a0bA\u5148\u62ff\u5230 lock&#xff0c;\u90a3\u4e48\u7ebf\u7a0bB\u4e5f\u60f3\u62ff lock&#xff0c;\u8fd9\u4e2a\u65f6\u5019\u7ebf\u7a0bB\u62ff\u4e0d\u5230&#xff0c;\u5c31\u4f1a\u7b49\u5f85&#xff0c;\u76f4\u5230\u7ebf\u7a0bA\u91ca\u653e\u9501\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;synchronized \u53ef\u4ee5\u4fdd\u8bc1\u591a\u4e2a\u7ebf\u7a0b\u5bf9\u540c\u4e00\u5171\u4eab\u8d44\u6e90\u7684\u4e92\u65a5\u8bbf\u95ee\u3002<\/p>\n<p>2.\u53ef\u91cd\u5165<\/p>\n<p>synchronized \u8fd8\u662f\u53ef\u91cd\u5165\u9501\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">methodA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u540c\u4e00\u4e2a\u7ebf\u7a0b\u5df2\u7ecf\u6301\u6709\u5bf9\u8c61\u9501&#xff0c;\u518d\u6b21\u83b7\u53d6\u540c\u4e00\u628a\u9501&#xff0c;\u800c\u4e0d\u4f1a\u628a\u81ea\u5df1\u9501\u6b7b\u3002<\/p>\n<p>3.synchronized \u7684\u57fa\u672c\u5de5\u4f5c\u65b9\u5f0f<\/p>\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3&#xff1a;<\/p>\n<p>1.\u7ebf\u7a0b\u8fdb\u5165 synchronized<\/p>\n<p>2.\u5c1d\u8bd5\u83b7\u53d6\u9501<\/p>\n<p>3.\u83b7\u53d6\u6210\u529f&#xff1f;<\/p>\n<p>4.\u5982\u679c\u83b7\u53d6\u6210\u529f&#xff0c;\u7b49\u5f85\u6267\u884c\u5b8c\u6210&#xff0c;\u7136\u540e\u91ca\u653e\u9501&#xff1b;\u5982\u679c\u83b7\u53d6\u5931\u8d25\u7684\u8bdd&#xff0c;\u5c31\u8fdb\u884c\u7b49\u5f85<\/p>\n<p>Java \u5b98\u65b9\u6587\u6863\u5c06 synchronized \u7684\u540c\u6b65\u673a\u5236\u5efa\u7acb\u5728\u5bf9\u8c61\u7684 intrinsic lock \/ monitor \u4e0a&#xff0c;\u5e76\u6307\u51fa\u540c\u6b65\u53ef\u4ee5\u7528\u4e8e\u907f\u514d\u7ebf\u7a0b\u5e72\u6270\u548c\u5185\u5b58\u4e00\u81f4\u6027\u95ee\u9898\u3002<\/p>\n<h4>5.2 synchronized \u4f7f\u7528\u793a\u4f8b<\/h4>\n<p>1.synchronized \u4fee\u9970\u4ee3\u7801\u5757<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Object<\/span> lock <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u65f6\u5019\u7ed3\u679c\u5c31\u662f\u6b63\u786e\u7684\u3002<\/p>\n<p>\u56e0\u4e3a\u7ebf\u7a0b1\u3001\u7ebf\u7a0b2\u90fd\u662f\u4f7f\u7528\u7684\u662f\u540c\u4e00\u628a\u9501&#xff0c;\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u591f\u8fdb\u5165\u4e34\u754c\u533a\u3002<\/p>\n<p>2.synchronized \u4fee\u9970\u5b9e\u4f8b\u65b9\u6cd5<\/p>\n<p>\u53ef\u4ee5\u8fd9\u6837&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">increment<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5b83\u7b49\u4ef7\u4e8e\u5bf9\u5f53\u524d\u5bf9\u8c61\u7684\u9501\u8fdb\u884c\u540c\u6b65\u3002<\/p>\n<p>\u53ef\u4ee5\u7c97\u7565\u7406\u89e3&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">increment<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6240\u4ee5&#xff0c;\u5b9e\u4f8b synchronized \u65b9\u6cd5\u9501\u7684\u662f\u5f53\u524d\u5bf9\u8c61 this\u3002<\/p>\n<p>3.synchronized \u4fee\u9970\u9759\u6001\u65b9\u6cd5<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">method<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9759\u6001\u65b9\u6cd5\u6ca1\u6709\u666e\u901a\u5bf9\u8c61\u7684 this\u3002<\/p>\n<p>\u56e0\u6b64\u5b83\u540c\u6b65\u65f6\u5bf9\u5e94\u7684\u662f\u5f53\u524d\u7c7b\u7684 Class \u5bf9\u8c61\u3002<\/p>\n<p>\u53ef\u4ee5\u7c97\u7565\u7406\u89e3\u4e3a&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">method<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MyClass<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>4.synchronized \u5230\u5e95\u9501\u7684\u662f\u4ec0\u4e48<\/p>\n<p>\u8fd9\u4e2a\u95ee\u9898\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>obj<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9501\u7684\u662f obj \u5bf9\u5e94\u7684\u76d1\u89c6\u5668\u3002<\/p>\n<p>\u5982\u679c&#xff1a;<\/p>\n<p><span class=\"token class-name\">Object<\/span> lock1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">Object<\/span> lock2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u90a3\u4e48&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u548c&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u662f\u4e24\u628a\u4e0d\u540c\u7684\u9501\u3002<\/p>\n<p>5.\u4e0d\u540c\u9501\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u53e6\u4e00\u4e2a\u7ebf\u7a0b&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u56e0\u4e3a lock1 \u4e0d\u7b49\u4e8e lock2 &#xff0c;\u6240\u4ee5\u5b83\u4eec\u5e76\u4e0d\u4f1a\u4e92\u76f8\u963b\u585e\u3002<\/p>\n<p>\u8fd9\u8bf4\u660e&#xff1a;synchronized \u662f\u5426\u4e92\u65a5&#xff0c;\u5173\u952e\u4e0d\u662f\u201c\u90fd\u5199\u4e86 synchronized\u201d&#xff0c;\u800c\u662f\u201c\u662f\u4e0d\u662f\u540c\u4e00\u628a\u9501\u201d\u3002<\/p>\n<p>6.\u4f7f\u7528 synchronized \u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898<\/p>\n<p>\u4e4b\u524d count&#043;&#043; \u5b58\u5728\u95ee\u9898\u3002<\/p>\n<p>\u73b0\u5728\u4e0a\u9501\u4e4b\u540e&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u8bfb\u53d6 &#043; \u4fee\u6539 &#043; \u5199\u56de\u662f\u5728\u540c\u4e00\u628a\u9501\u7684\u4fdd\u62a4\u4e0b\u5b8c\u6210\u7684\u3002<\/p>\n<p>\u6240\u4ee5\u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684\u57fa\u672c\u601d\u8def\u662f&#xff1a;<\/p>\n<p>\u627e\u5230\u5171\u4eab\u6570\u636e -&gt; \u627e\u5230\u4e34\u754c\u533a -&gt; \u9009\u62e9\u5408\u9002\u7684\u9501 -&gt; \u4f7f\u7528 synchronized \u4fdd\u62a4<\/p>\n<h4>5.3 Java \u6807\u51c6\u5e93\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u7c7b<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u7ebf\u7a0b\u5b89\u5168\u7c7b<\/p>\n<p>\u5982\u679c\u4e00\u4e2a\u7c7b\u5728\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u4f7f\u7528\u65f6&#xff0c;\u80fd\u591f\u6309\u7167\u5176\u8bbe\u8ba1\u4fdd\u8bc1\u64cd\u4f5c\u5b89\u5168&#xff0c;\u90a3\u4e48\u53ef\u4ee5\u79f0\u4e3a\u7ebf\u7a0b\u5b89\u5168\u7c7b\u3002Java \u6807\u51c6\u5e93\u4e2d\u5b58\u5728\u4e00\u4e9b\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\u548c\u5e76\u53d1\u5de5\u5177\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;ConcurrentHashMap\u3001CopyOnWriteArrayList\u3001BlockingQueue\u7b49\u3002<\/p>\n<p>2.\u5e38\u89c1\u7ebf\u7a0b\u5b89\u5168\u7c7b<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">ConcurrentHashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> map<\/p>\n<p>\u7528\u4e8e\u5e76\u53d1\u573a\u666f\u4e0b\u7684 Map\u3002<\/p>\n<p>\u53c8\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">CopyOnWriteArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> list<\/p>\n<p>\u7528\u4e8e\u7279\u5b9a\u5e76\u53d1\u8bfb\u591a\u5199\u5c11\u573a\u666f\u3002<\/p>\n<p>\u8fd8\u6709&#xff1a;<\/p>\n<p><span class=\"token class-name\">BlockingQueue<\/span><\/p>\n<p>\u7528\u4e8e\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u3002<\/p>\n<p>3.\u7ebf\u7a0b\u5b89\u5168\u7c7b\u7684\u57fa\u672c\u4f7f\u7528<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">ConcurrentHashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> map <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ConcurrentHashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>map<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Java&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nmap<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Thread&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u5b89\u5168\u5730\u5bf9\u5176\u6267\u884c\u5f88\u591a\u5e76\u53d1\u64cd\u4f5c\u3002<\/p>\n<p>4.\u4f7f\u7528\u7ebf\u7a0b\u5b89\u5168\u7c7b\u65f6\u7684\u6ce8\u610f\u4e8b\u9879<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u7ebf\u7a0b\u5b89\u5168\u7c7b\u5e76\u4e0d\u4ee3\u8868\u4f60\u7684\u6574\u4e2a\u4e1a\u52a1\u903b\u8f91\u5929\u7136\u7ebf\u7a0b\u5b89\u5168\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>map<span class=\"token punctuation\">.<\/span><span class=\"token function\">containsKey<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    map<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">,<\/span> value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u867d\u7136 containsKey() \u548c put() \u5355\u72ec\u90fd\u662f\u5b89\u5168\u64cd\u4f5c&#xff0c;\u4f46\u5224\u65ad\u548c\u63d2\u5165\u662f\u4e24\u4e2a\u64cd\u4f5c&#xff0c;\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u4ecd\u7136\u53ef\u80fd\u4ea7\u751f\u7ade\u6001\u3002<\/p>\n<p>\u6240\u4ee5&#xff0c;\u7c7b\u7684\u65b9\u6cd5\u7ebf\u7a0b\u5b89\u5168&#xff0c;\u4e0d\u7b49\u4e8e\u4efb\u610f\u7ec4\u5408\u51fa\u6765\u7684\u4e1a\u52a1\u64cd\u4f5c\u90fd\u662f\u539f\u5b50\u7684\u3002<\/p>\n<h4>5.4 \u6b7b\u9501<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u6b7b\u9501<\/p>\n<p>\u6b7b\u9501\u662f\u591a\u7ebf\u7a0b\u4e2d\u975e\u5e38\u7ecf\u5178\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u6301\u6709\u95011<br \/>\n\u7ebf\u7a0bA\u7b49\u5f85\u95012<\/p>\n<p>\u7ebf\u7a0bB\u6301\u6709\u95012<br \/>\n\u7ebf\u7a0bB\u7b49\u5f85\u95011<\/p>\n<p>\u4e8e\u662f A \u7b49 B &#xff0c;B -&gt; \u7b49 A \u4e24\u4e2a\u4eba\u4e92\u76f8\u7b49\u3002<\/p>\n<p>\u6700\u7ec8&#xff0c;\u8c01\u90fd\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>2.\u6b7b\u9501\u4ea7\u751f\u7684\u5178\u578b\u573a\u666f<\/p>\n<p>\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token class-name\">Object<\/span> lock1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">Object<\/span> lock2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53e6\u4e00\u4e2a\u7ebf\u7a0b&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6267\u884c\u8fc7\u7a0b\u4e2d\u53ef\u80fd&#xff1a;<\/p>\n<p>t1 \u6301\u6709 lock1<br \/>\nt2 \u6301\u6709 lock2<\/p>\n<p>t1 \u7b49 lock2<br \/>\nt2 \u7b49 lock1<\/p>\n<p>\u4e8e\u662f\u6b7b\u9501\u3002<\/p>\n<p>3.synchronized \u4e3a\u4ec0\u4e48\u53ef\u80fd\u4ea7\u751f\u6b7b\u9501<\/p>\n<p>\u56e0\u4e3asynchronized\u662f\u4e92\u65a5\u9501\u3002\u7ebf\u7a0b\u83b7\u53d6\u9501\u4ee5\u540e\u5fc5\u987b\u91ca\u653e\u5176\u4ed6\u7ebf\u7a0b\u624d\u80fd\u83b7\u53d6\u3002<\/p>\n<p>\u5982\u679c\u7ebf\u7a0bA&#xff1a;<\/p>\n<p>\u62ff\u7740\u95011<br \/>\n\u7b49\u5f85\u95012<\/p>\n<p>\u800c\u7ebf\u7a0bB&#xff1a;<\/p>\n<p>\u62ff\u7740\u95012<br \/>\n\u7b49\u5f85\u95011<\/p>\n<p>\u5c31\u5f62\u6210\u5faa\u73af\u7b49\u5f85\u3002<\/p>\n<p>4.\u6b7b\u9501\u4ea7\u751f\u7684\u5fc5\u8981\u6761\u4ef6<\/p>\n<p>\u7ecf\u5178\u7684\u6b7b\u9501\u5fc5\u8981\u6761\u4ef6\u5305\u62ec&#xff1a;<\/p>\n<p>\u4e92\u65a5<br \/>\n\u5360\u6709\u4e14\u7b49\u5f85<br \/>\n\u4e0d\u53ef\u5265\u593a<br \/>\n\u5faa\u73af\u7b49\u5f85<\/p>\n<p>\u5176\u4e2d\u6700\u5bb9\u6613\u7406\u89e3\u7684\u662f&#xff1a;<\/p>\n<p>A -&gt; \u7b49B<br \/>\nB -&gt; \u7b49A<\/p>\n<p>\u5f62\u6210\u4e00\u4e2a\u5faa\u73af\u3002<\/p>\n<p>Java \u8bed\u8a00\u89c4\u8303\u4e5f\u660e\u786e\u6307\u51fa&#xff0c;Java \u5e76\u4e0d\u4f1a\u81ea\u52a8\u4fdd\u8bc1\u6240\u6709\u6b7b\u9501\u6761\u4ef6\u90fd\u88ab\u68c0\u6d4b\u6216\u907f\u514d&#xff1b;\u7a0b\u5e8f\u8bbe\u8ba1\u65f6\u9700\u8981\u91c7\u7528\u5408\u7406\u7684\u9501\u7b56\u7565\u3002<\/p>\n<p>5.\u5982\u4f55\u907f\u514d\u6b7b\u9501<\/p>\n<p>\u4e00\u4e2a\u91cd\u8981\u65b9\u6cd5&#xff1a;\u7edf\u4e00\u83b7\u53d6\u9501\u7684\u987a\u5e8f\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u6240\u6709\u7ebf\u7a0b\u90fd\u6309\u7167\u987a\u5e8f\u83b7\u53d6\u3002<\/p>\n<p>lock1 -&gt; lock2<\/p>\n<p>\u800c\u4e0d\u8981&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA&#xff1a;<br \/>\nlock1 -&gt; lock2<\/p>\n<p>\u7ebf\u7a0bB&#xff1a;<br \/>\nlock2 -&gt; lock1<\/p>\n<p>\u6309\u987a\u5e8f\u83b7\u53d6\u8fd8\u53ef\u4ee5&#xff1a;<\/p>\n<p>\u51cf\u5c11\u9501\u7684\u6570\u91cf<br \/>\n\u51cf\u5c11\u9501\u7684\u6301\u6709\u65f6\u95f4<br \/>\n\u907f\u514d\u5d4c\u5957\u9501<\/p>\n<p>6.\u5982\u4f55\u53d1\u73b0\u6b7b\u9501<\/p>\n<p>\u5b9e\u9645\u5f00\u53d1\u4e2d\u53ef\u4ee5\u4f7f\u7528&#xff1a;<\/p>\n<p>JVM \u7ebf\u7a0b\u8f6c\u50a8<br \/>\njstack<br \/>\nJDK Mission Control<br \/>\nVisualVM<br \/>\nIDE \u8c03\u8bd5\u5de5\u5177<\/p>\n<p>\u67e5\u770b\u7ebf\u7a0b\u4e4b\u95f4\u7684\u9501\u7b49\u5f85\u5173\u7cfb\u3002<\/p>\n<p>\u5982\u679c\u53d1\u73b0&#xff1a;<\/p>\n<p>Thread-1 waiting for lock A<br \/>\nThread-2 waiting for lock B<\/p>\n<p>\u540c\u65f6&#xff1a;<\/p>\n<p>Thread-1 \u6301\u6709 B<br \/>\nThread-2 \u6301\u6709 A<\/p>\n<p>\u5c31\u9700\u8981\u91cd\u70b9\u68c0\u67e5\u6b7b\u9501\u3002<\/p>\n<h3>6\u3001volatile \u5173\u952e\u5b57<\/h3>\n<h4>6.1 volatile \u7684\u57fa\u672c\u6982\u5ff5<\/h4>\n<p>volatile \u662f Java \u4e2d\u7528\u4e8e\u5904\u7406\u591a\u7ebf\u7a0b\u5171\u4eab\u53d8\u91cf\u7684\u5173\u952e\u5b57\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">boolean<\/span> running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b83\u4e3b\u8981\u89e3\u51b3\u5171\u4eab\u53d8\u91cf\u7684\u5185\u5b58\u53ef\u89c1\u6027\u95ee\u9898\u3002<\/p>\n<p>\u4f46\u9700\u8981\u7279\u522b\u6ce8\u610f&#xff1a;volatile \u4e0d\u4fdd\u8bc1\u590d\u5408\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002<\/p>\n<p>\u6240\u4ee5volatile\u548csynchronized\u89e3\u51b3\u7684\u95ee\u9898\u5e76\u4e0d\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n<h4>6.2 volatile \u80fd\u4fdd\u8bc1\u5185\u5b58\u53ef\u89c1\u6027<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u53ef\u89c1\u6027<\/p>\n<p>\u5047\u8bbe&#xff1a;<\/p>\n<p><span class=\"token keyword\">boolean<\/span> running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0bA&#xff1a;<\/p>\n<p><span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>running<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ebf\u7a0bB&#xff1a;<\/p>\n<p>running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6211\u4eec\u5e0c\u671b&#xff0c;\u7ebf\u7a0bB\u4fee\u6539 running  &#xff0c;\u7ebf\u7a0bA\u53ef\u4ee5\u770b\u5230&#xff0c;\u9000\u51fa\u5faa\u73af\u3002<\/p>\n<p>\u8fd9\u5c31\u662f&#xff1a;\u53ef\u89c1\u6027\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u53ef\u89c1\u6027\u95ee\u9898<\/p>\n<p>\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d&#xff0c;\u53ef\u80fd\u5bf9\u5171\u4eab\u53d8\u91cf\u5b58\u5728\u4e0d\u540c\u7684\u89c2\u5bdf\u3002<\/p>\n<p>\u73b0\u4ee3\u8ba1\u7b97\u673a\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd&#xff0c;\u4f1a\u6d89\u53ca&#xff1a;<\/p>\n<p>CPU\u7f13\u5b58<br \/>\n\u7f16\u8bd1\u5668\u4f18\u5316<br \/>\nJIT\u4f18\u5316<br \/>\n\u5185\u5b58\u8bbf\u95ee\u91cd\u6392<\/p>\n<p>\u56e0\u6b64\u4e0d\u80fd\u7b80\u5355\u8ba4\u4e3a&#xff1a;\u4e00\u4e2a\u7ebf\u7a0b\u4fee\u6539\u53d8\u91cf\u540e&#xff0c;\u5176\u4ed6\u7ebf\u7a0b\u4e00\u5b9a\u6309\u7167\u6211\u4eec\u76f4\u89c9\u4e2d\u7684\u65b9\u5f0f\u7acb\u5373\u770b\u5230\u3002<\/p>\n<p>3.volatile \u5982\u4f55\u4fdd\u8bc1\u53ef\u89c1\u6027<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">boolean<\/span> running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0bA&#xff1a;<\/p>\n<p><span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>running<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ebf\u7a0bB&#xff1a;<\/p>\n<p>running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f7f\u7528 volatile \u540e&#xff0c;\u5bf9\u8fd9\u4e2a\u53d8\u91cf\u7684\u5199\u5165\u548c\u540e\u7eed\u8bfb\u53d6\u5177\u6709\u660e\u786e\u7684\u5185\u5b58\u53ef\u89c1\u6027\u4fdd\u8bc1\u3002<\/p>\n<p>\u6240\u4ee5\u7ebf\u7a0bB\u4fee\u6539 running  \u540e&#xff0c;\u7ebf\u7a0bA\u80fd\u53ca\u65f6\u7684\u8bfb\u53d6\u5230\u5e76\u7ed3\u675f\u5faa\u73af&#xff0c;\u8fd9\u5c31\u662f volatile \u7684\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n<h4>6.3 volatile \u4e0d\u4fdd\u8bc1\u539f\u5b50\u6027<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u539f\u5b50\u6027<\/p>\n<p>\u539f\u5b50\u6027\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a&#xff1a;\u4e00\u4e2a\u64cd\u4f5c\u8981\u4e48\u5b8c\u6574\u6267\u884c&#xff0c;\u8981\u4e48\u4e0d\u88ab\u5176\u4ed6\u7ebf\u7a0b\u63d2\u5165\u7834\u574f\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>count<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b9e\u9645\u4e0a\u53ef\u4ee5\u7406\u89e3\u6210&#xff1a;<\/p>\n<p>\u8bfb\u53d6 count<br \/>\n \u2193<br \/>\n&#043;1<br \/>\n \u2193<br \/>\n\u5199\u56de count<\/p>\n<p>\u5b83\u4e0d\u662f\u4e00\u4e2a\u5b8c\u6574\u4e0d\u53ef\u5206\u5272\u7684\u539f\u5b50\u64cd\u4f5c\u3002<\/p>\n<p>2.count&#043;&#043; \u4e3a\u4ec0\u4e48\u4e0d\u662f\u539f\u5b50\u64cd\u4f5c<\/p>\n<p>\u5047\u8bbe count &#061; 10 \u3002<\/p>\n<p>\u7ebf\u7a0bA\u8bfb\u53d610<\/p>\n<p>\u7ebf\u7a0bB\u8bfb\u53d610<\/p>\n<p>\u7ebf\u7a0bA&#xff1a;10 &#043; 1 &#061; 11<\/p>\n<p>\u7ebf\u7a0bB&#xff1a;10 &#043; 1 &#061; 11<\/p>\n<p>\u7136\u540e&#xff1a;A\u519911\u3001B\u519911<\/p>\n<p>\u6700\u7ec8\u770b\u5230\u7684\u662f11&#xff0c;\u6b63\u786e\u7684\u7ed3\u679c\u5e94\u8be5\u662f12\u624d\u5bf9\u3002<\/p>\n<p>3.volatile \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u89e3\u51b3 count&#043;&#043;<\/p>\n<p>\u5373\u4f7f&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">;<\/span><\/p>\n<p>count&#043;&#043;\u4ecd\u7136\u662f\u4e0d\u5b89\u5168\u3002<\/p>\n<p>\u56e0\u4e3a volatile \u4e3b\u8981\u89e3\u51b3\u7684\u662f\u53ef\u89c1\u6027\u95ee\u9898&#xff0c;\u800c &#043;&#043; \u9700\u8981\u7684\u662f\u539f\u5b50\u6027\u3002<\/p>\n<p>\u6240\u4ee5&#xff1a;volatile \u4e0d\u7b49\u4e8e synchronized\u3002<\/p>\n<h4>6.4 volatile \u4e0e\u6709\u5e8f\u6027<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u6307\u4ee4\u91cd\u6392\u5e8f<\/p>\n<p>\u4e3a\u4e86\u4f18\u5316\u6027\u80fd&#xff0c;\u7f16\u8bd1\u5668\u3001JIT \u548c\u5904\u7406\u5668\u53ef\u80fd\u5bf9\u67d0\u4e9b\u64cd\u4f5c\u8fdb\u884c\u91cd\u65b0\u6392\u5e8f\u3002<\/p>\n<p>\u5355\u7ebf\u7a0b\u60c5\u51b5\u4e0b&#xff0c;\u53ea\u8981\u6700\u7ec8\u7ed3\u679c\u7b26\u5408\u7a0b\u5e8f\u8bed\u4e49&#xff0c;\u4e00\u4e9b\u91cd\u6392\u662f\u5141\u8bb8\u7684\u3002<\/p>\n<p>\u4f46\u662f&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA<br \/>\n\u7ebf\u7a0bB<\/p>\n<p>\u540c\u65f6\u89c2\u5bdf\u5171\u4eab\u6570\u636e\u65f6&#xff0c;\u6267\u884c\u987a\u5e8f\u5c31\u53ef\u80fd\u5f71\u54cd\u7ed3\u679c\u3002<\/p>\n<p>2.volatile \u5bf9\u91cd\u6392\u5e8f\u7684\u5f71\u54cd<\/p>\n<p>volatile \u4e0d\u4ec5\u4ec5\u6d89\u53ca\u53ef\u89c1\u6027&#xff0c;\u8fd8\u5177\u6709\u4e0e\u5185\u5b58\u987a\u5e8f\u76f8\u5173\u7684\u8bed\u4e49&#xff0c;\u53ef\u4ee5\u963b\u6b62\u67d0\u4e9b\u4e0d\u5141\u8bb8\u8de8\u8d8a volatile \u8bfb\u5199\u7684\u91cd\u6392\u5e8f\u3002<\/p>\n<p>\u73b0\u5728\u4e0d\u7528\u6df1\u5165&#xff1a;<\/p>\n<p>CPU \u6307\u4ee4<br \/>\n\u5185\u5b58\u5c4f\u969c<br \/>\nStoreLoad<br \/>\nLoadLoad<\/p>\n<p>\u8fd9\u4e9b\u5e95\u5c42\u7ec6\u8282\u3002<\/p>\n<p>\u53ea\u9700\u8981\u5148\u8bb0\u4f4f&#xff0c;volatile \u9664\u4e86\u4fdd\u8bc1\u53ef\u89c1\u6027&#xff0c;\u8fd8\u5bf9\u5185\u5b58\u64cd\u4f5c\u7684\u6709\u5e8f\u6027\u63d0\u4f9b\u4e86\u91cd\u8981\u4fdd\u8bc1\u3002<\/p>\n<h4>6.5 volatile \u7684\u5178\u578b\u4f7f\u7528\u573a\u666f<\/h4>\n<p>1.\u7ebf\u7a0b\u505c\u6b62\u6807\u5fd7<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">boolean<\/span> running <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7ebf\u7a0b&#xff1a;<\/p>\n<p><span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>running<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u505c\u6b62\u9700\u8981\u628a running \u7f6e\u4e3a false \u3002<\/p>\n<p>\u8fd9\u662f volatile \u975e\u5e38\u5178\u578b\u7684\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n<p>2.\u5171\u4eab\u72b6\u6001\u6807\u5fd7<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">boolean<\/span> initialized<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e00\u4e2a\u7ebf\u7a0b&#xff1a;<\/p>\n<p>initialized <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5176\u4ed6\u7ebf\u7a0b&#xff1a;<\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>initialized<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4f7f\u7528\u8d44\u6e90<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9700\u8981\u591a\u4e2a\u7ebf\u7a0b\u53ca\u65f6\u770b\u5230\u72b6\u6001\u53d8\u5316\u65f6&#xff0c;volatile \u5c31\u53ef\u80fd\u975e\u5e38\u5408\u9002\u3002<\/p>\n<h3>7\u3001wait \u548c notify<\/h3>\n<p>\u8fd9\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u77e5\u8bc6\u70b9&#xff0c;\u5b83\u4eec\u5b9a\u4e49\u5728 Object \u4e2d&#xff0c;\u800c\u4e0d\u662f Thread \u4e2d\u3002<\/p>\n<h4>7.1 wait() \u65b9\u6cd5<\/h4>\n<p>1.wait() \u7684\u4f5c\u7528<\/p>\n<p>wait() \u7684\u4f5c\u7528\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a&#xff1a;\u8ba9\u5f53\u524d\u7ebf\u7a0b\u8fdb\u5165\u7b49\u5f85\u72b6\u6001&#xff0c;\u5e76\u91ca\u653e\u5b83\u5f53\u524d\u6301\u6709\u7684\u3001\u4e0e\u8c03\u7528 wait() \u7684\u5bf9\u8c61\u76f8\u5173\u8054\u7684\u76d1\u89c6\u5668\u9501\u3002\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u73b0\u5728\u4f7f\u7528 lock.wait()&#xff0c;\u90a3\u4e48\u91ca\u653e\u7684\u53ea\u6709 lock \u8fd9\u4e2a\u9501\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6267\u884c\u6d41\u7a0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u73b0\u5728\u6301\u6709 lock<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u6267\u884cwait()\u540e<br \/>\n \u2193<br \/>\n\u91ca\u653e\u5f53\u524d\u7ebf\u7a0b\u7684 lock<br \/>\n \u2193<br \/>\n\u8fdb\u5165\u7b49\u5f85<\/p>\n<p>2.wait() \u7684\u57fa\u672c\u4f7f\u7528<\/p>\n<p><span class=\"token class-name\">Object<\/span> lock <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>3.wait() \u4e3a\u4ec0\u4e48\u5fc5\u987b\u914d\u5408 synchronized<\/p>\n<p>\u56e0\u4e3a\u8c03\u7528\u67d0\u4e2a\u5bf9\u8c61\u7684 wait() \u65f6&#xff0c;\u5f53\u524d\u7ebf\u7a0b\u5fc5\u987b\u5df2\u7ecf\u6301\u6709\u8fd9\u4e2a\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\u9501\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u662f\u6b63\u786e\u7684\u3002<\/p>\n<p>\u4f46\u662f&#xff1a;<\/p>\n<p>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u5f53\u524d\u7ebf\u7a0b\u6ca1\u6709\u6301\u6709 lock \u7684\u76d1\u89c6\u5668&#xff0c;\u5c31\u4f1a\u4ea7\u751f&#xff1a;<\/p>\n<p>IllegalMonitorStateException<\/p>\n<p>Oracle \u5b98\u65b9\u6559\u7a0b\u4e5f\u660e\u786e\u8981\u6c42 wait() \u5fc5\u987b\u5728\u6301\u6709\u5bf9\u5e94\u5bf9\u8c61 intrinsic lock \u7684\u60c5\u51b5\u4e0b\u8c03\u7528\u3002<\/p>\n<p>4.wait() \u4e3a\u4ec0\u4e48\u4f1a\u91ca\u653e\u9501<\/p>\n<p>\u5047\u8bbe&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA<br \/>\n \u2193<br \/>\n\u62ff\u5230 lock<br \/>\n \u2193<br \/>\n\u53d1\u73b0\u6761\u4ef6\u4e0d\u6ee1\u8db3<br \/>\n \u2193<br \/>\nwait()<\/p>\n<p>\u5982\u679c wait \u4e0d\u91ca\u653e\u9501&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u4e00\u76f4\u62ff\u7740\u9501<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bB\u65e0\u6cd5\u62ff\u5230\u9501<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bB\u65e0\u6cd5\u4fee\u6539\u6761\u4ef6<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u6c38\u8fdc\u7b49<\/p>\n<p>\u6240\u4ee5 wait() \u540e\u5fc5\u987b\u8981\u91ca\u653e\u9501&#xff0c;\u8fd9\u6837\u5176\u4ed6\u7ebf\u7a0b\u624d\u80fd\u83b7\u53d6\u5230\u9501&#xff0c;\u4ece\u800c\u6267\u884c\u5176\u4ed6\u7684\u4ee3\u7801\u3002<\/p>\n<h4>7.2 notify() \u65b9\u6cd5<\/h4>\n<p>1.notify() \u7684\u4f5c\u7528<\/p>\n<p>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">notify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8868\u793a\u5524\u9192\u4e00\u4e2a\u6b63\u5728\u7b49\u5f85\u8be5\u5bf9\u8c61\u76d1\u89c6\u5668\u7684\u7ebf\u7a0b&#xff08;\u968f\u673a\u5524\u9192\u7684&#xff09;\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">notify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>2.\u88ab\u5524\u9192\u7684\u7ebf\u7a0b\u4f1a\u53d1\u751f\u4ec0\u4e48<\/p>\n<p>\u6ce8\u610f&#xff1a;<\/p>\n<p><span class=\"token function\">notify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u5e76\u4e0d\u610f\u5473\u7740\u88ab\u5524\u9192\u7ebf\u7a0b\u9a6c\u4e0a\u6267\u884c\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u6267\u884cwait()\u540e&#xff0c;\u8fdb\u5165\u7b49\u5f85\u72b6\u6001<\/p>\n<p>\u7ebf\u7a0bB\u6267\u884cnotify()<\/p>\n<p>\u7ebf\u7a0bA\u53ea\u662f\u4ece\u7b49\u5f85\u961f\u5217\u4e2d\u88ab\u5524\u9192\u3002<\/p>\n<p>\u4f46\u662f\u7ebf\u7a0bB\u6b64\u65f6\u4ecd\u7136\u6301\u6709 lock &#xff0c;\u7ebf\u7a0bA\u5fc5\u987b\u91cd\u65b0\u7ade\u4e89\u9501 lock &#xff0c;\u62ff\u5230\u4ee5\u540e\u624d\u80fd\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>Oracle \u6587\u6863\u660e\u786e\u8bf4\u660e&#xff0c;\u88ab notify\/notifyAll \u5524\u9192\u7684\u7ebf\u7a0b\u5e76\u4e0d\u4f1a\u7acb\u5373\u6267\u884c&#xff0c;\u800c\u662f\u8981\u91cd\u65b0\u7ade\u4e89\u5bf9\u5e94\u7684\u9501\u3002<\/p>\n<p>3.notify \u548c\u9501\u4e4b\u95f4\u7684\u5173\u7cfb<\/p>\n<p>notify() \u5fc5\u987b\u5728\u6301\u6709\u5bf9\u5e94\u5bf9\u8c61\u76d1\u89c6\u5668\u7684\u60c5\u51b5\u4e0b\u8c03\u7528\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">notify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u800c\u4e0d\u662f\u5355\u72ec\u7684\u4f7f\u7528&#xff1a;<\/p>\n<p>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">notify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>4.notify \u540e\u7ebf\u7a0b\u662f\u5426\u7acb\u5373\u6267\u884c<\/p>\n<p>\u4e0d\u662f\u7acb\u5373\u6267\u884c\u7684&#xff0c;\u6d41\u7a0b\u662f&#xff1a;<\/p>\n<p>\u7ebf\u7a0bB\u4f7f\u7528notify()<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u88ab\u5524\u9192<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u7b49\u5f85\u91cd\u65b0\u83b7\u53d6\u9501<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bB\u7ee7\u7eed\u6267\u884c<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bB\u91ca\u653e\u9501<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u7ade\u4e89\u9501<br \/>\n \u2193<br \/>\n\u83b7\u5f97\u9501<br \/>\n \u2193<br \/>\n\u7ee7\u7eed\u6267\u884c<\/p>\n<h4>7.3 notifyAll() \u65b9\u6cd5<\/h4>\n<p>1.notifyAll() \u7684\u4f5c\u7528<\/p>\n<p>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">notifyAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f1a\u5524\u9192\u6240\u6709\u7b49\u5f85\u8be5\u5bf9\u8c61\u76d1\u89c6\u5668\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>2.notify() \u548c notifyAll() \u7684\u533a\u522b<\/p>\n<p>notify() \u662f\u968f\u673a\u5524\u9192\u4e00\u4e2a\u3002<\/p>\n<p>notifyAll() \u662f\u5524\u9192\u5168\u90e8\u3002<\/p>\n<p>\u4f46\u662f&#xff0c;\u201c\u5524\u9192\u5168\u90e8\u201d\u4e0d\u4ee3\u8868\u201c\u5168\u90e8\u540c\u65f6\u6267\u884c\u201d\u3002<\/p>\n<p>\u6240\u6709\u7ebf\u7a0b\u4ecd\u7136\u9700\u8981\u91cd\u65b0\u7ade\u4e89\u9501\u3002<\/p>\n<p>3.\u4e3a\u4ec0\u4e48\u6709\u65f6\u5019\u9700\u8981 notifyAll()<\/p>\n<p>\u5047\u8bbe&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u7b49\u5f85\u6761\u4ef61<br \/>\n\u7ebf\u7a0bB\u7b49\u5f85\u6761\u4ef62<br \/>\n\u7ebf\u7a0bC\u7b49\u5f85\u6761\u4ef63<\/p>\n<p>\u5982\u679c notify() \u53ea\u80fd\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b&#xff0c;\u53c8\u521a\u597d\u5524\u9192\u7684\u662f\u4e0d\u6ee1\u8db3\u5f53\u524d\u6761\u4ef6\u7684\u7ebf\u7a0b&#xff0c;\u90a3\u4e48\u5b83\u53ef\u80fd\u518d\u6b21\u7b49\u5f85\u3002<\/p>\n<p>\u8fd9\u79cd\u60c5\u51b5\u4e0b&#xff0c;notifyAll() \u5f80\u5f80\u66f4\u52a0\u7a33\u59a5&#xff1a;<\/p>\n<p>\u5524\u9192\u6240\u6709\u7b49\u5f85\u7ebf\u7a0b<br \/>\n \u2193<br \/>\n\u6bcf\u4e2a\u7ebf\u7a0b\u91cd\u65b0\u5224\u65ad\u6761\u4ef6<br \/>\n \u2193<br \/>\n\u6ee1\u8db3\u6761\u4ef6\u7684\u7ee7\u7eed<br \/>\n \u2193<br \/>\n\u4e0d\u6ee1\u8db3\u6761\u4ef6\u7684\u7ee7\u7eed\u7b49\u5f85<\/p>\n<p>Oracle \u5b98\u65b9\u7684 guarded block \u793a\u4f8b\u4e5f\u91c7\u7528 while \u914d\u5408 wait()&#xff0c;\u5e76\u4f7f\u7528 notifyAll() \u8fdb\u884c\u901a\u77e5\u3002<\/p>\n<h4>7.4 wait \u548c sleep \u7684\u5bf9\u6bd4<\/h4>\n<p>\u8fd9\u662f Java \u591a\u7ebf\u7a0b\u975e\u5e38\u7ecf\u5178\u7684\u9762\u8bd5\u9898\u3002<\/p>\n<table>\n<tr>\u5bf9\u6bd4wait()sleep()<\/tr>\n<tbody>\n<tr>\n<td>\u6240\u5c5e\u7c7b<\/td>\n<td>Object<\/td>\n<td>Thread<\/td>\n<\/tr>\n<tr>\n<td>\u662f\u5426\u91ca\u653e\u9501<\/td>\n<td>\u662f<\/td>\n<td>\u5426<\/td>\n<\/tr>\n<tr>\n<td>\u662f\u5426\u5fc5\u987b synchronized<\/td>\n<td>\u662f<\/td>\n<td>\u5426<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u4f5c\u7528<\/td>\n<td>\u7ebf\u7a0b\u534f\u4f5c\/\u7b49\u5f85<\/td>\n<td>\u4f11\u7720\u4e00\u6bb5\u65f6\u95f4<\/td>\n<\/tr>\n<tr>\n<td>\u5524\u9192\u65b9\u5f0f<\/td>\n<td>notify\/notifyAll\/\u4e2d\u65ad\u7b49<\/td>\n<td>\u65f6\u95f4\u7ed3\u675f\u6216\u4e2d\u65ad<\/td>\n<\/tr>\n<tr>\n<td>\u662f\u5426\u9700\u8981\u6761\u4ef6\u5224\u65ad<\/td>\n<td>\u901a\u5e38\u9700\u8981<\/td>\n<td>\u4e0d\u9700\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6700\u91cd\u8981\u7684\u4e00\u6761&#xff1a;<\/p>\n<p>wait() \u662f\u7b49\u5f85\u5e76\u91ca\u653e\u9501<\/p>\n<p>sleep() \u662f\u7b49\u5f85\u4f46\u4e0d\u91ca\u653e\u9501<\/p>\n<p>Oracle \u5b98\u65b9\u6587\u6863\u5bf9 wait() \u7684\u5b9a\u4e49\u660e\u786e\u5305\u542b\u91ca\u653e\u5bf9\u5e94\u76d1\u89c6\u5668\u9501&#xff0c;\u800c sleep() \u662f\u7ebf\u7a0b\u7684\u5b9a\u65f6\u7b49\u5f85\u673a\u5236\u3002<\/p>\n<h4>7.5 wait\/notify \u4f7f\u7528\u4e2d\u7684\u5e38\u89c1\u95ee\u9898<\/h4>\n<p>1.\u4e3a\u4ec0\u4e48\u901a\u5e38\u4f7f\u7528 while \u5224\u65ad\u6761\u4ef6<\/p>\n<p><span class=\"token comment\">\/\/ \u63a8\u8350<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>condition<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e0d\u63a8\u8350<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>condition<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u539f\u56e0\u662f&#xff1a;\u7ebf\u7a0b\u88ab\u5524\u9192\u4ee5\u540e&#xff0c;\u6761\u4ef6\u4e0d\u4e00\u5b9a\u4ecd\u7136\u6ee1\u8db3\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA\u7b49\u5f85<br \/>\n \u2193<br \/>\nnotifyAll()<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u3001B\u3001C\u90fd\u88ab\u5524\u9192<br \/>\n \u2193<br \/>\n\u7ade\u4e89\u9501<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bA\u5148\u62ff\u5230\u9501<br \/>\n \u2193<br \/>\n\u4fee\u6539\u6761\u4ef6<br \/>\n \u2193<br \/>\n\u7ebf\u7a0bB\u62ff\u5230\u9501<br \/>\n \u2193<br \/>\n\u539f\u6765\u7684\u6761\u4ef6\u53ef\u80fd\u5df2\u7ecf\u4e0d\u6210\u7acb<\/p>\n<p>\u56e0\u6b64\u7ebf\u7a0b\u91cd\u65b0\u83b7\u5f97\u9501\u4ee5\u540e\u5fc5\u987b\u518d\u6b21\u68c0\u67e5\u6761\u4ef6\u3002<\/p>\n<p>Oracle \u5b98\u65b9\u6559\u7a0b\u660e\u786e\u5efa\u8bae&#xff1a;wait() \u5e94\u8be5\u653e\u5728\u68c0\u67e5\u6761\u4ef6\u7684\u5faa\u73af\u4e2d&#xff0c;\u800c\u4e0d\u662f\u53ea\u68c0\u67e5\u4e00\u6b21\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u968f\u610f\u8c03\u7528 wait()<\/p>\n<p>\u56e0\u4e3a wait() \u8981\u6c42\u5f53\u524d\u7ebf\u7a0b\u6301\u6709\u5bf9\u5e94\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\u9501\u3002<\/p>\n<p>\u6240\u4ee5\u5fc5\u987b&#xff1a;<\/p>\n<p><span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>3.\u7ebf\u7a0b\u88ab\u5524\u9192\u540e\u7684\u518d\u6b21\u7ade\u4e89<\/p>\n<p>\u6d41\u7a0b\u5e94\u8be5\u662f\u8fd9\u6837\u7684&#xff1a;<\/p>\n<p>wait()<br \/>\n \u2193<br \/>\n\u91ca\u653e\u9501<br \/>\n \u2193<br \/>\n\u7b49\u5f85<br \/>\n \u2193<br \/>\nnotify()<br \/>\n \u2193<br \/>\n\u88ab\u5524\u9192<br \/>\n \u2193<br \/>\n\u91cd\u65b0\u7ade\u4e89\u9501<br \/>\n \u2193<br \/>\n\u83b7\u5f97\u9501<br \/>\n \u2193<br \/>\n\u7ee7\u7eed\u6267\u884c<\/p>\n<p>\u800c\u4e0d\u662f notify() \u540e\u9a6c\u4e0a\u6267\u884c\u3002<\/p>\n<h3>8\u3001\u591a\u7ebf\u7a0b\u6848\u4f8b<\/h3>\n<h4>8.1 \u5355\u4f8b\u6a21\u5f0f<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u5355\u4f8b\u6a21\u5f0f<\/p>\n<p>\u5355\u4f8b\u6a21\u5f0f\u662f\u4e00\u79cd\u8bbe\u8ba1\u6a21\u5f0f&#xff0c;\u90a3\u4e48\u4ec0\u4e48\u53c8\u53eb\u505a\u8bbe\u8ba1\u6a21\u5f0f\u5462&#xff0c;\u8bbe\u8ba1\u6a21\u5f0f\u5c31\u597d\u6bd4\u8c61\u68cb\u4e2d\u7684 \u201c\u68cb\u8c31\u201d &#xff0c;\u9488\u5bf9\u4e00\u65b9\u7684\u8d70\u6cd5&#xff0c;\u53e6\u4e00\u4e2a\u6709\u4e00\u4e9b\u56fa\u5b9a\u7684\u5957\u8def\u6765\u5e94\u5bf9\u4ed6\u3002<\/p>\n<p>\u5355\u4f8b\u6a21\u5f0f\u8981\u6c42&#xff1a;\u4e00\u4e2a\u7c7b\u5728\u6574\u4e2a\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u53ea\u80fd\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5355\u4f8b\u6a21\u5f0f\u4e2d\u7684\u201c\u70b9\u775b\u4e4b\u7b14\u201d&#xff0c;\u5728\u7c7b\u5916\u9762\u8fdb\u884cnew\u64cd\u4f5c&#xff0c;\u5c31\u4f1a\u7f16\u8bd1\u5931\u8d25<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u9759\u6001\u6210\u5458\u521d\u59cb\u5316&#xff0c;\u5728\u7c7b\u52a0\u8f7d\u7684\u65f6\u5019\u89e6\u53d1<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token constant\">INSTANCE<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u540e\u9762\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u65b9\u6cd5\u6765\u83b7\u53d6\u5b9e\u4f8b<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token constant\">INSTANCE<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u521b\u5efa\u5bf9\u8c61\u7684\u65f6\u5019&#xff1a;<\/p>\n<p><span class=\"token class-name\">Singleton<\/span> s1 <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">Singleton<\/span> s2 <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u8fd9\u4e24\u4e2a\u5bf9\u8c61\u90fd\u76f8\u7b49\u3002<\/p>\n<p>2.\u997f\u6c49\u6a21\u5f0f<\/p>\n<p>\u6240\u8c13\u997f\u6c49&#xff0c;\u5c31\u662f\u7c7b\u52a0\u8f7d\u65f6\u5c31\u521b\u5efa\u5bf9\u8c61\u3002<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token constant\">INSTANCE<\/span> <span class=\"token operator\">&#061;<\/span><br \/>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token constant\">INSTANCE<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f18\u70b9&#xff1a;\u5b9e\u73b0\u7b80\u5355\u3001\u7ebf\u7a0b\u5b89\u5168<br \/>\n\u7f3a\u70b9&#xff1a;\u5bf9\u8c61\u53ef\u80fd\u7528\u4e0d\u5230&#xff0c;\u4f46\u5df2\u7ecf\u521b\u5efa<\/p>\n<p>3.\u61d2\u6c49\u6a21\u5f0f\u2014\u2014\u5355\u7ebf\u7a0b\u7248<\/p>\n<p>\u61d2\u6c49\u6a21\u5f0f&#xff1a;\u771f\u6b63\u9700\u8981\u5bf9\u8c61\u65f6\u624d\u521b\u5efa\u3002<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Singleton<\/span> instance<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> instance<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u4e2a\u4ee3\u7801&#xff0c;\u5728\u5355\u7ebf\u7a0b\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n<p>\u4f46\u662f\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0bA&#xff1a;instance &#061;&#061; null<br \/>\n\u7ebf\u7a0bB&#xff1a;instance &#061;&#061; null<\/p>\n<p>A&#xff1a;new<br \/>\nB&#xff1a;new<\/p>\n<p>\u53ef\u80fd\u521b\u5efa\u591a\u4e2a\u5bf9\u8c61\u3002<\/p>\n<p>\u6240\u4ee5&#xff0c;\u8fd9\u4e2a\u4ee3\u7801\u5355\u7ebf\u7a0b\u6b63\u786e&#xff0c;\u4e0d\u4ee3\u8868\u591a\u7ebf\u7a0b\u6b63\u786e\u3002<\/p>\n<p>4.\u61d2\u6c49\u6a21\u5f0f\u2014\u2014\u591a\u7ebf\u7a0b\u7248<\/p>\n<p>\u5728\u591a\u7ebf\u7a0b\u4e2d&#xff0c;\u53ef\u4ee5\u8fd9\u6837&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> instance<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7ebf\u7a0bA<br \/>\n \u2193<br \/>\n\u62ff\u9501<br \/>\n \u2193<br \/>\n\u521b\u5efa\u5bf9\u8c61<\/p>\n<p>\u7ebf\u7a0bB<br \/>\n \u2193<br \/>\n\u7b49\u5f85<\/p>\n<p>A\u7ed3\u675f<br \/>\n \u2193<br \/>\nB\u62ff\u9501<br \/>\n \u2193<br \/>\n\u53d1\u73b0\u5bf9\u8c61\u5df2\u7ecf\u5b58\u5728<\/p>\n<p>\u8fd9\u6837\u5c31\u53ef\u4ee5\u4fdd\u8bc1\u5b89\u5168\u3002<\/p>\n<p>5.\u4f7f\u7528 synchronized \u6539\u8fdb<\/p>\n<p>synchronized \u52a0\u5728\u6574\u4e2a\u65b9\u6cd5\u4e0a&#xff0c;\u6bcf\u6b21\u83b7\u53d6\u5355\u4f8b\u90fd\u9700\u8981\u53c2\u4e0e\u540c\u6b65\u3002<\/p>\n<p>\u4e8e\u662f\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u3002<\/p>\n<p>6.\u53cc\u91cd\u68c0\u67e5\u9501<\/p>\n<p>\u7ecf\u5178\u5199\u6cd5&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">volatile<\/span> <span class=\"token class-name\">Singleton<\/span> instance<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Singleton<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>instance <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> instance<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91cc\u51fa\u73b0\u4e86&#xff1a;<\/p>\n<p>\u7b2c\u4e00\u6b21\u68c0\u67e5<br \/>\n \u2193<br \/>\n\u52a0\u9501<br \/>\n \u2193<br \/>\n\u7b2c\u4e8c\u6b21\u68c0\u67e5<br \/>\n \u2193<br \/>\n\u521b\u5efa\u5bf9\u8c61<\/p>\n<p>\u6240\u4ee5\u53eb\u53cc\u91cd\u68c0\u67e5\u9501\u3002<\/p>\n<p>7.\u4e3a\u4ec0\u4e48\u53cc\u91cd\u68c0\u67e5\u9501\u9700\u8981 volatile<\/p>\n<p>\u56e0\u4e3a\u8fd9\u4e00\u53e5\u4ee3\u7801&#xff1a;<\/p>\n<p>instance <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Singleton<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4ece\u6982\u5ff5\u4e0a\u5e76\u4e0d\u662f\u7b80\u5355\u7684\u4e00\u6b65\u3002<\/p>\n<p>\u53ef\u4ee5\u7c97\u7565\u7406\u89e3\u6210&#xff1a;<\/p>\n<p>1. \u5206\u914d\u5185\u5b58<br \/>\n2. \u521d\u59cb\u5316\u5bf9\u8c61<br \/>\n3. \u5c06\u5f15\u7528\u6307\u5411\u5bf9\u8c61<\/p>\n<p>volatile \u5728\u8fd9\u91cc\u7684\u6838\u5fc3\u4f5c\u7528\u662f\u7981\u6b62 new Singleton() \u4e2d\u7684\u6307\u4ee4\u91cd\u6392\u5e8f&#xff0c;\u786e\u4fdd\u5bf9\u8c61\u5728\u5f15\u7528\u8d4b\u503c\u4e4b\u524d\u5df2\u7ecf\u5b8c\u6210\u4e86\u521d\u59cb\u5316\u3002<\/p>\n<p>\u56e0\u6b64\u53cc\u91cd\u68c0\u67e5\u9501\u4e2d\u7684 volatile \u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5b83\u4e0d\u4ec5\u63d0\u4f9b\u53ef\u89c1\u6027&#xff0c;\u8fd8\u63d0\u4f9b\u5fc5\u8981\u7684\u6709\u5e8f\u6027\u4fdd\u8bc1\u3002<\/p>\n<h4>8.2 \u963b\u585e\u961f\u5217<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u963b\u585e\u961f\u5217<\/p>\n<p>\u666e\u901a\u961f\u5217&#xff1a;\u5148\u8fdb\u5148\u51fa&#xff08;FIFO&#xff09;<\/p>\n<p>\u963b\u585e\u961f\u5217&#xff1a;\u5f53\u961f\u5217\u6ee1\u4e86&#xff0c;\u751f\u4ea7\u8005\u53ef\u4ee5\u7b49\u5f85&#xff1b;\u5f53\u961f\u5217\u7a7a\u4e86&#xff0c;\u6d88\u8d39\u8005\u53ef\u4ee5\u7b49\u5f85\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u9700\u8981\u963b\u585e<\/p>\n<p>\u5047\u8bbe\u961f\u5217\u5bb9\u91cf &#061; 10&#xff0c;\u5982\u679c\u751f\u4ea7\u8005\u751f\u4ea7\u592a\u5feb\u5bfc\u81f4\u961f\u5217\u6ee1&#xff0c;\u8fd9\u65f6\u5019\u751f\u4ea7\u8005\u4e0d\u80fd\u7ee7\u7eed\u65e0\u9650\u6dfb\u52a0\u3002<\/p>\n<p>\u5408\u7406\u505a\u6cd5\u662f\u7b49\u5f85\u3002<\/p>\n<p>\u53cd\u8fc7\u6765&#xff1a;\u961f\u5217\u4e3a\u7a7a&#xff0c;\u6d88\u8d39\u8005\u4e5f\u4e0d\u80fd\u62ff\u6570\u636e\u3002<\/p>\n<p>\u5408\u7406\u505a\u6cd5\u4e5f\u662f\u7b49\u5f85\u3002<\/p>\n<p>3.\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b<\/p>\n<p>\u6a21\u578b\u5982\u56fe\u6240\u793a&#xff1a;<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261007114919-6ac631bf520c1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u751f\u4ea7\u8005&#xff1a;put()<br \/>\n\u6d88\u8d39\u8005&#xff1a;take()<\/p>\n<p>4.\u4f7f\u7528 wait\/notify \u5b9e\u73b0\u963b\u585e\u961f\u5217<\/p>\n<p>\u7b80\u5355\u5b9e\u73b0&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyBlockingQueue<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Queue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> queue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> capacity <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> capacity<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">notifyAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">take<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">isEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">int<\/span> value <span class=\"token operator\">&#061;<\/span> queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">poll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">notifyAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> value<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u961f\u5217\u6ee1\u7684\u65f6\u5019&#xff0c;\u751f\u4ea7\u8005 wait &#xff0c;\u961f\u5217\u7a7a\u7684\u65f6\u5019&#xff0c;\u6d88\u8d39\u8005 wait \u3002<\/p>\n<p>\u751f\u4ea7\u8005\u6dfb\u52a0\u6570\u636e\u4ee5\u540e&#xff0c;\u4f7f\u7528 notifyAll() \u901a\u77e5\u6d88\u8d39\u8005\u3002<\/p>\n<p>\u6d88\u8d39\u8005\u53d6\u8d70\u6570\u636e\u4ee5\u540e&#xff0c;\u4f7f\u7528 notifyAll() \u901a\u77e5\u751f\u4ea7\u8005\u3002<\/p>\n<p>5.\u6807\u51c6\u5e93\u4e2d\u7684 BlockingQueue<\/p>\n<p>Java \u5df2\u7ecf\u63d0\u4f9bjava.util.concurrent.BlockingQueue\u3002<\/p>\n<p>\u5e38\u89c1\u5b9e\u73b0&#xff1a;<\/p>\n<p>ArrayBlockingQueue<br \/>\nLinkedBlockingQueue<br \/>\nPriorityBlockingQueue<\/p>\n<p>\u5b9e\u9645\u5f00\u53d1\u4e2d&#xff0c;\u4f18\u5148\u4f7f\u7528\u6807\u51c6\u5e93\u63d0\u4f9b\u7684\u5e76\u53d1\u5de5\u5177\u901a\u5e38\u6bd4\u81ea\u5df1\u4ece\u5e95\u5c42\u5b9e\u73b0\u66f4\u52a0\u53ef\u9760\u3002Oracle \u7684\u5e76\u53d1\u5de5\u5177\u6587\u6863\u4e5f\u5f3a\u8c03&#xff0c;\u6807\u51c6\u5e76\u53d1\u5de5\u5177\u80fd\u591f\u51cf\u5c11\u81ea\u5df1\u5b9e\u73b0\u540c\u6b65\u673a\u5236\u65f6\u51fa\u73b0\u6b7b\u9501\u3001\u7ade\u6001\u548c\u5176\u4ed6\u5e76\u53d1\u9519\u8bef\u7684\u98ce\u9669\u3002<\/p>\n<p>6.\u4f7f\u7528\u963b\u585e\u961f\u5217\u5b9e\u73b0\u751f\u4ea7\u8005\u6d88\u8d39\u8005<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">BlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> queue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayBlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u751f\u4ea7\u8005&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> producer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u751f\u4ea7&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6d88\u8d39\u8005&#xff1a;<\/p>\n<p><span class=\"token class-name\">Thread<\/span> consumer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">Integer<\/span> value <span class=\"token operator\">&#061;<\/span> queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">take<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6d88\u8d39&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u5c31\u662f\u975e\u5e38\u5178\u578b\u7684\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u3002<\/p>\n<h4>8.3 \u5b9a\u65f6\u5668<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u5b9a\u65f6\u5668<\/p>\n<p>\u5b9a\u65f6\u5668\u5c31\u662f&#xff1a;\u8ba9\u67d0\u4e2a\u4efb\u52a1\u5728\u6307\u5b9a\u65f6\u95f4\u6267\u884c&#xff0c;\u6216\u8005\u6309\u7167\u4e00\u5b9a\u5468\u671f\u91cd\u590d\u6267\u884c\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>5\u79d2\u540e\u6267\u884c<br \/>\n\u6bcf\u96941\u79d2\u6267\u884c<br \/>\n\u6bcf\u5929\u51cc\u6668\u6267\u884c<\/p>\n<p>2.\u5b9a\u65f6\u4efb\u52a1\u7684\u57fa\u672c\u9700\u6c42<\/p>\n<p>\u4f8b\u5982&#xff1a;\u6bcf\u96941\u79d2\u6253\u5370\u4e00\u6b21\u5f53\u524d\u65f6\u95f4\u2026\u2026<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 Java \u63d0\u4f9b\u7684\u5b9a\u65f6\u4efb\u52a1\u673a\u5236\u3002<\/p>\n<p>3.\u6807\u51c6\u5e93\u4e2d\u7684 Timer<\/p>\n<p>Java \u63d0\u4f9b\u4e86 Timer \u548c TimerTask \u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Timer<\/span> timer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Timer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>timer<span class=\"token punctuation\">.<\/span><span class=\"token function\">schedule<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TimerTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8868\u793a\u5ef6\u8fdf\u7ea6 1 \u79d2\u6267\u884c\u3002<\/p>\n<p>4.Timer \u548c TimerTask<\/p>\n<p>\u7b80\u5355\u7406\u89e3&#xff1a;<\/p>\n<p>Timer\u8868\u793a\u8d1f\u8d23\u8c03\u5ea6<\/p>\n<p>TimerTask\u8868\u793a\u4efb\u52a1<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>timer<span class=\"token punctuation\">.<\/span><span class=\"token function\">schedule<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>5.\u4f7f\u7528 ScheduledExecutorService \u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1<\/p>\n<p>\u73b0\u4ee3 Java \u5e76\u53d1\u7f16\u7a0b\u4e2d&#xff0c;\u66f4\u5e38\u89c1\u7684\u662fScheduledExecutorService\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">ScheduledExecutorService<\/span> executor <span class=\"token operator\">&#061;<\/span><br \/>\n        <span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newScheduledThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">schedule<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">SECONDS<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5468\u671f\u4efb\u52a1&#xff1a;<\/p>\n<p>executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">scheduleAtFixedRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5468\u671f\u6267\u884c&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">SECONDS<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>6.\u7b80\u5355\u5b9e\u73b0\u4e00\u4e2a\u5b9a\u65f6\u5668<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TimerDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">ScheduledExecutorService<\/span> executor <span class=\"token operator\">&#061;<\/span><br \/>\n                <span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newScheduledThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">scheduleAtFixedRate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentTimeMillis<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">SECONDS<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u6837\u5c31\u53ef\u4ee5&#xff1a;<\/p>\n<p>\u542f\u52a8<br \/>\n \u2193<br \/>\n\u7acb\u5373\u6267\u884c<br \/>\n \u2193<br \/>\n1\u79d2<br \/>\n \u2193<br \/>\n\u6267\u884c<br \/>\n \u2193<br \/>\n1\u79d2<br \/>\n \u2193<br \/>\n\u6267\u884c<br \/>\n\u2026\u2026<\/p>\n<h4>8.4 \u7ebf\u7a0b\u6c60<\/h4>\n<p>1.\u4ec0\u4e48\u662f\u7ebf\u7a0b\u6c60<\/p>\n<p>\u5047\u8bbe\u670d\u52a1\u5668\u4e0d\u65ad\u63a5\u6536\u5230\u4efb\u52a1&#xff1a;<\/p>\n<p>\u4efb\u52a11<br \/>\n\u4efb\u52a12<br \/>\n\u4efb\u52a13<br \/>\n\u2026\u2026<br \/>\n\u4efb\u52a110000<\/p>\n<p>\u5982\u679c\u6bcf\u4e2a\u4efb\u52a1\u90fd\u521b\u5efa\u7ebf\u7a0b&#xff0c;\u4e00\u4e07\u4e2a\u4efb\u52a1\u5c31\u8981\u4e00\u4e07\u4e2a\u7ebf\u7a0b&#xff0c;\u8fd9\u5c31\u5bfc\u81f4\u6548\u7387\u5f88\u4f4e&#xff0c;\u56e0\u4e3a\u7ebf\u7a0b\u521b\u5efa\u3001\u9500\u6bc1\u3001\u8c03\u5ea6\u672c\u8eab\u90fd\u6709\u6210\u672c\u3002<\/p>\n<p>\u6240\u4ee5\u53ef\u4ee5\u63d0\u524d\u51c6\u5907\u4e00\u4e9b\u7ebf\u7a0b&#xff1a;<\/p>\n<p>\u7ebf\u7a0b\u6c60&#xff1a;worker1\u3001worker2\u3001worker3\u3001worker4<\/p>\n<p>\u4efb\u52a1\u6765\u4e86\u4ee5\u540e\u5c31\u76f4\u63a5\u63d0\u4ea4\u7ebf\u7a0b\u6c60&#xff0c;\u8ba9\u7ebf\u7a0b\u6c60\u5b89\u6392\u7ebf\u7a0b\u6267\u884c\u3002<\/p>\n<p>2.\u4e3a\u4ec0\u4e48\u9700\u8981\u7ebf\u7a0b\u6c60<\/p>\n<p>\u7ebf\u7a0b\u6c60\u4e3b\u8981\u89e3\u51b3\u4e24\u4e2a\u95ee\u9898&#xff1a;<\/p>\n<p>\u7b2c\u4e00&#xff1a;\u51cf\u5c11\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u7684\u5f00\u9500<\/p>\n<p>\u7ebf\u7a0b\u53ef\u4ee5\u91cd\u590d\u5229\u7528\u3002<\/p>\n<p>\u4efb\u52a11 \u2192 worker1<br \/>\n\u4efb\u52a12 \u2192 worker1<br \/>\n\u4efb\u52a13 \u2192 worker1<\/p>\n<p>\u800c\u4e0d\u662f\u9891\u7e41\u7684\u521b\u5efa\u9500\u6bc1\u3002<\/p>\n<p>\u7b2c\u4e8c&#xff1a;\u63a7\u5236\u7ebf\u7a0b\u6570\u91cf<\/p>\n<p>\u5982\u679c\u65e0\u9650\u5236\u521b\u5efa\u7ebf\u7a0b&#xff0c;\u4efb\u52a1\u5c31\u4f1a\u8d8a\u6765\u8d8a\u591a&#xff0c;\u4ece\u800c\u7ebf\u7a0b\u8d8a\u6765\u8d8a\u591a&#xff0c;\u8fd9\u6837\u5c31\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u88ab\u5927\u91cf\u6d88\u8017\u3002<\/p>\n<p>\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u9650\u5236\u548c\u7ba1\u7406\u7ebf\u7a0b\u8d44\u6e90\u3002Oracle \u5b98\u65b9\u6587\u6863\u4e5f\u6307\u51fa&#xff0c;\u7ebf\u7a0b\u6c60\u80fd\u591f\u51cf\u5c11\u5927\u91cf\u7ebf\u7a0b\u521b\u5efa\u5e26\u6765\u7684\u5f00\u9500&#xff0c;\u5e76\u63d0\u4f9b\u7ebf\u7a0b\u8d44\u6e90\u7ba1\u7406\u80fd\u529b\u3002<\/p>\n<p>3.\u7ebf\u7a0b\u6c60\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406<\/p>\n<p>\u63d0\u524d\u521b\u5efa\u4e00\u6279\u7ebf\u7a0b\u653e\u5728\u6c60\u5b50\u91cc&#xff0c;\u4efb\u52a1\u6765\u4e86\u590d\u7528\u5df2\u6709\u7ebf\u7a0b&#xff0c;\u4efb\u52a1\u7ed3\u675f\u7ebf\u7a0b\u4e0d\u9500\u6bc1&#xff0c;\u7b49\u5f85\u4e0b\u4e00\u4e2a\u4efb\u52a1&#xff1b;\u907f\u514d\u9891\u7e41\u521b\u5efa \/ \u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\u3002<\/p>\n<p>\u5982\u679c\u7ebf\u7a0b\u6682\u65f6\u90fd\u5fd9&#xff1a;<\/p>\n<p>\u4efb\u52a1<br \/>\n \u2193<br \/>\n\u4efb\u52a1\u961f\u5217<br \/>\n \u2193<br \/>\n\u7b49\u5f85\u7ebf\u7a0b\u5904\u7406<\/p>\n<p>\u56e0\u6b64\u7ebf\u7a0b\u6c60\u4e00\u822c\u5305\u542b&#xff1a;<\/p>\n<p>\u5de5\u4f5c\u7ebf\u7a0b<br \/>\n\u4efb\u52a1\u961f\u5217<br \/>\n\u7ebf\u7a0b\u6570\u91cf\u63a7\u5236<br \/>\n\u62d2\u7edd\u7b56\u7565<br \/>\n\u4efb\u52a1\u63d0\u4ea4\u673a\u5236<\/p>\n<p>4.Executor<\/p>\n<p>Java \u63d0\u4f9bExecutor\u63a5\u53e3\u3002<\/p>\n<p>\u6700\u6838\u5fc3\u7684\u65b9\u6cd5&#xff1a;<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Runnable<\/span> command<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Executor<\/span> executor <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b83\u628a\u4efb\u52a1\u63d0\u4ea4\u548c\u4efb\u52a1\u5177\u4f53\u7531\u54ea\u4e2a\u7ebf\u7a0b\u6267\u884c\u8fdb\u884c\u4e86\u5206\u79bb\u3002<\/p>\n<p>5.ExecutorService<\/p>\n<p>\u8fd9\u4e5f\u662f\u4e00\u4e2a\u63a5\u53e3&#xff0c;\u4f46ExecutorService \u6bd4 Executor \u529f\u80fd\u66f4\u4e30\u5bcc\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">ExecutorService<\/span> executor <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newFixedThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u63d0\u4ea4\u4efb\u52a1&#xff1a;<\/p>\n<p>executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">submit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u4efb\u52a1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6700\u540e&#xff1a;<\/p>\n<p>executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">shutdown<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5173\u95ed\u7ebf\u7a0b\u6c60\u3002<\/p>\n<p>6.Executors<\/p>\n<p>Executors \u8fd9\u662f\u4e00\u4e2a\u5de5\u5177\u7c7b&#xff0c;\u63d0\u4f9b\u4e86\u4e00\u4e9b\u521b\u5efa\u7ebf\u7a0b\u6c60\u7684\u5de5\u5382\u65b9\u6cd5\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newFixedThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u56fa\u5b9a\u5927\u5c0f\u7ebf\u7a0b\u6c60\u3002<\/p>\n<p>\u8fd8\u6709&#xff1a;<\/p>\n<p><span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newSingleThreadExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5355\u7ebf\u7a0b\u6267\u884c\u5668\u3002<\/p>\n<p>\u4ee5\u53ca&#xff1a;<\/p>\n<p><span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newCachedThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7b49\u3002<\/p>\n<p>Oracle \u5b98\u65b9\u6559\u7a0b\u4e5f\u4ecb\u7ecd\u4e86 fixed\u3001cached\u3001single \u7b49\u7ebf\u7a0b\u6c60\u5de5\u5382\u65b9\u5f0f\u3002<\/p>\n<p>7.ThreadPoolExecutor<\/p>\n<p>\u66f4\u5e95\u5c42\u3001\u66f4\u7075\u6d3b\u7684\u7ebf\u7a0b\u6c60\u5b9e\u73b0\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u53c2\u6570\u5217\u8868<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">ThreadPoolExecutor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> corePoolSize<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token keyword\">int<\/span> maximumPoolSize<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token keyword\">long<\/span> keepAliveTime<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token class-name\">TimeUnit<\/span> unit<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token class-name\">BlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Runnable<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> workQueue<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token class-name\">ThreadFactory<\/span> threadFactory<span class=\"token punctuation\">,<\/span><br \/>\n                              <span class=\"token class-name\">RejectedExecutionHandler<\/span> handler<span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8fd9\u91cc\u7684\u53c2\u6570\u975e\u5e38\u91cd\u8981&#xff1a;<\/p>\n<p>corePoolSize -&gt; \u6838\u5fc3\u7ebf\u7a0b\u6570&#xff0c;\u5e38\u9a7b\u7ebf\u7a0b<\/p>\n<p>maximumPoolSize -&gt; \u6700\u5927\u7ebf\u7a0b\u6570&#xff08;\u6838\u5fc3 &#043; \u975e\u6838\u5fc3\u603b\u548c\u4e0a\u9650&#xff09;<\/p>\n<p>keepAliveTime -&gt; \u975e\u6838\u5fc3\u7ebf\u7a0b\u7a7a\u95f2\u5b58\u6d3b\u65f6\u95f4<\/p>\n<p>unit -&gt; keepAliveTime \u7684\u65f6\u95f4\u5355\u4f4d<\/p>\n<p>workQueue -&gt; \u963b\u585e\u961f\u5217&#xff0c;\u5b58\u653e\u7b49\u5f85\u6267\u884c\u7684\u4efb\u52a1<\/p>\n<p>threadFactory -&gt; \u7ebf\u7a0b\u5de5\u5382&#xff0c;\u7528\u6765\u521b\u5efa\u7ebf\u7a0b&#xff0c;\u53ef\u4ee5\u81ea\u5b9a\u4e49\u7ebf\u7a0b\u540d\u5b57<\/p>\n<p>handler -&gt; \u62d2\u7edd\u7b56\u7565&#xff0c;\u4efb\u52a1\u6ee1\u4e86\u4e4b\u540e\u7684\u5904\u7406\u65b9\u6848<\/p>\n<p>8.\u4f7f\u7528\u7ebf\u7a0b\u6c60\u6267\u884c\u4efb\u52a1<\/p>\n<p>\u5b8c\u6574\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>concurrent<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ExecutorService<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>concurrent<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Executors<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PoolDemo<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">ExecutorService<\/span> executor <span class=\"token operator\">&#061;<\/span><br \/>\n                <span class=\"token class-name\">Executors<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newFixedThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token keyword\">int<\/span> taskId <span class=\"token operator\">&#061;<\/span> i<span class=\"token punctuation\">;<\/span><\/p>\n<p>            executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">submit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                                <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034; \u6267\u884c\u4efb\u52a1&#xff1a;&#034;<\/span><br \/>\n                                <span class=\"token operator\">&#043;<\/span> taskId<br \/>\n                <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        executor<span class=\"token punctuation\">.<\/span><span class=\"token function\">shutdown<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91cc\u768410\u4e2a\u4efb\u52a1\u5e76\u4e0d\u662f\u521b\u5efa10\u4e2a\u7ebf\u7a0b&#xff0c;\u800c\u662f3\u4e2a\u5de5\u4f5c\u7ebf\u7a0b &#043; 10\u4e2a\u4efb\u52a1&#xff0c;\u591a\u4e2a\u4efb\u52a1\u7531\u7ebf\u7a0b\u6c60\u4e2d\u7684\u5de5\u4f5c\u7ebf\u7a0b\u590d\u7528\u6267\u884c\u3002<\/p>\n<p>9.\u7b80\u5355\u5b9e\u73b0\u4e00\u4e2a\u7ebf\u7a0b\u6c60<\/p>\n<p>\u4e3a\u4e86\u771f\u6b63\u7406\u89e3\u7ebf\u7a0b\u6c60&#xff0c;\u53ef\u4ee5\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a\u975e\u5e38\u7b80\u5316\u7684\u7248\u672c\u3002<\/p>\n<p>\u601d\u8def&#xff1a;<\/p>\n<p>\u4efb\u52a1\u961f\u5217<br \/>\n   \u2193<br \/>\n\u5de5\u4f5c\u7ebf\u7a0b<br \/>\n   \u2193<br \/>\n\u4e0d\u65ad\u53d6\u4efb\u52a1<br \/>\n   \u2193<br \/>\n\u6267\u884c\u4efb\u52a1<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyThreadPool<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">BlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Runnable<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> queue <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">LinkedBlockingQueue<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">MyThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> count<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                        <span class=\"token class-name\">Runnable<\/span> task <span class=\"token operator\">&#061;<\/span> queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">take<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>                    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>                        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">interrupt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">submit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Runnable<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        queue<span class=\"token punctuation\">.<\/span><span class=\"token function\">offer<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f7f\u7528&#xff1a;<\/p>\n<p><span class=\"token class-name\">MyThreadPool<\/span> pool <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyThreadPool<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> taskId <span class=\"token operator\">&#061;<\/span> i<span class=\"token punctuation\">;<\/span><\/p>\n<p>    pool<span class=\"token punctuation\">.<\/span><span class=\"token function\">submit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><br \/>\n                <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                        <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034; \u6267\u884c\u4efb\u52a1&#xff1a;&#034;<\/span><br \/>\n                        <span class=\"token operator\">&#043;<\/span> taskId<br \/>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u5c31\u662f\u4e00\u4e2a\u975e\u5e38\u7b80\u5316\u7684\u7ebf\u7a0b\u6c60\u3002<\/p>\n<p>\u5f53\u7136&#xff0c;\u771f\u6b63\u7684 ThreadPoolExecutor \u8981\u590d\u6742\u5f97\u591a&#xff0c;\u5b83\u8fd8\u9700\u8981\u5904\u7406\u8fd9\u4e9b\u95ee\u9898&#xff1a;<\/p>\n<p>\u6838\u5fc3\u7ebf\u7a0b<br \/>\n\u6700\u5927\u7ebf\u7a0b<br \/>\n\u4efb\u52a1\u961f\u5217<br \/>\n\u7a7a\u95f2\u8d85\u65f6<br \/>\n\u62d2\u7edd\u7b56\u7565<br \/>\n\u7ebf\u7a0b\u5de5\u5382<br \/>\n\u5173\u95ed<br \/>\n\u4efb\u52a1\u53d6\u6d88<br \/>\n\u7edf\u8ba1\u4fe1\u606f<\/p>\n<h3>9\u3001\u5bf9\u6bd4\u7ebf\u7a0b\u548c\u8fdb\u7a0b<\/h3>\n<h4>9.1 \u7ebf\u7a0b\u7684\u4f18\u70b9<\/h4>\n<p>1.\u521b\u5efa\u548c\u9500\u6bc1\u6210\u672c\u76f8\u5bf9\u8f83\u4f4e<\/p>\n<p>\u76f8\u6bd4\u8fdb\u7a0b&#xff0c;\u7ebf\u7a0b\u5171\u4eab\u6240\u5c5e\u8fdb\u7a0b\u7684\u5927\u90e8\u5206\u8d44\u6e90\u3002<\/p>\n<p>\u56e0\u6b64\u521b\u5efa\u548c\u5207\u6362\u7ebf\u7a0b\u901a\u5e38\u6bd4\u521b\u5efa\u3001\u5207\u6362\u72ec\u7acb\u8fdb\u7a0b\u66f4\u52a0\u8f7b\u91cf\u3002<\/p>\n<p>2.\u7ebf\u7a0b\u4e4b\u95f4\u5171\u4eab\u8fdb\u7a0b\u8d44\u6e90<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>\u5806<br \/>\n\u7c7b\u4fe1\u606f<br \/>\n\u6253\u5f00\u7684\u8d44\u6e90<br \/>\n\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u5f88\u591a\u6570\u636e<\/p>\n<p>\u53ef\u4ee5\u7531\u540c\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u7684\u7ebf\u7a0b\u5171\u540c\u8bbf\u95ee\u3002<\/p>\n<p>\u4f46\u6b63\u56e0\u4e3a\u5171\u4eab&#xff0c;\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u624d\u4f1a\u51fa\u73b0\u3002<\/p>\n<p>3.\u7ebf\u7a0b\u4e4b\u95f4\u901a\u4fe1\u66f4\u52a0\u65b9\u4fbf<\/p>\n<p>\u540c\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u7684\u7ebf\u7a0b\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u5171\u4eab\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u591a\u4e2a\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u3002\u6240\u4ee5\u7ebf\u7a0b\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u53ef\u4ee5\u6bd4\u8f83\u65b9\u4fbf\u3002<\/p>\n<p>\u4f46\u662f\u65b9\u4fbf\u5e76\u4e0d\u4ee3\u8868\u5b89\u5168\u3002<\/p>\n<p>\u5fc5\u987b\u8003\u8651\u7ade\u6001\u6761\u4ef6\u3001\u53ef\u89c1\u6027\u3001\u539f\u5b50\u6027\u3001\u540c\u6b65\u3002<\/p>\n<p>4.\u9002\u5408\u6267\u884c\u5e76\u53d1\u4efb\u52a1<\/p>\n<p>\u4f8b\u5982\u670d\u52a1\u5668&#xff1a;<\/p>\n<p>\u8bf7\u6c421 -&gt; \u7ebf\u7a0b1<br \/>\n\u8bf7\u6c422 -&gt; \u7ebf\u7a0b2<br \/>\n\u8bf7\u6c423 -&gt; \u7ebf\u7a0b3<\/p>\n<p>\u591a\u4e2a\u8bf7\u6c42\u53ef\u4ee5\u5e76\u53d1\u5904\u7406\u3002<\/p>\n<p>\u518d\u4f8b\u5982&#xff1a;<\/p>\n<p>\u4e0b\u8f7d<br \/>\n\u65e5\u5fd7<br \/>\n\u8ba1\u7b97<br \/>\n\u7f51\u7edc IO<br \/>\n\u5b9a\u65f6\u4efb\u52a1<\/p>\n<p>\u90fd\u53ef\u4ee5\u5229\u7528\u591a\u7ebf\u7a0b\u8fdb\u884c\u4efb\u52a1\u7ec4\u7ec7\u3002<\/p>\n<h4>9.2 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