{"id":80662,"date":"2026-03-05T17:26:36","date_gmt":"2026-03-05T09:26:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/80662.html"},"modified":"2026-03-05T17:26:36","modified_gmt":"2026-03-05T09:26:36","slug":"jvm%e5%86%85%e5%ad%98%e7%bb%93%e6%9e%84-3-5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/80662.html","title":{"rendered":"JVM\u5185\u5b58\u7ed3\u6784-3.5"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668<\/li>\n<li>\u4e8c\u3001\u865a\u62df\u673a\u6808<\/li>\n<li>\n<ul>\n<li>1.\u57fa\u672c\u6982\u5ff5<\/li>\n<li>2.\u6808\u5185\u5b58\u6ea2\u51fa<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u672c\u5730\u65b9\u6cd5\u6808<\/li>\n<li>\u56db\u3001\u5806<\/li>\n<li>\n<ul>\n<li>4.1 \u5806\u5185\u5b58\u6ea2\u51fa<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u65b9\u6cd5\u533a<\/li>\n<li>\n<ul>\n<li>5.1 \u65b9\u6cd5\u533a\u5185\u5b58\u6ea2\u51fa<\/li>\n<li>5.2\u5e38\u91cf\u6c60<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<hr \/>\n<h2>\u524d\u8a00<\/h2>\n<p>JVM\u2014\u2014java\u7a0b\u5e8f\u7684\u8fd0\u884c\u73af\u5883\u3002\u5728\u6df1\u5165\u5b66\u4e60\u4e4b\u524d&#xff0c;\u5148\u4e86\u89e3\u5b83\u5185\u5b58\u7ed3\u6784\u3002<\/p>\n<hr \/>\n<h2>\u4e00\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668<\/h2>\n<p>\u7a0b\u5e8f\u8ba1\u6570\u5668\u662f CPU \u6216 JVM \u4e2d\u7528\u4e8e\u5b58\u653e\u4e0b\u4e00\u6761\u5f85\u6267\u884c\u6307\u4ee4\u5730\u5740\u7684\u6838\u5fc3\u5bc4\u5b58\u5668\u3002\u5b83\u662f\u7ebf\u7a0b\u79c1\u6709\u7684&#xff0c;\u4e0d\u7528\u8003\u8651\u5185\u5b58\u6ea2\u51fa\u3002<\/p>\n<p>jvm\u6267\u884c\u6307\u4ee4\u65f6&#xff0c;\u7a0b\u5e8f\u8ba1\u6570\u5668\u4f1a\u8bb0\u5f55\u4e0b\u6761\u6307\u4ee4\u7684\u8ba1\u6570&#xff0c;\u6267\u884c\u5b8c\u540e&#xff0c;\u89e3\u91ca\u5668\u4f1a\u8bfb\u53d6\u8ba1\u6570\u5668\u7684\u8ba1\u6570&#xff0c;\u5c06\u6307\u4ee4\u7ffb\u8bd1\u4e3a\u673a\u5668\u7801&#xff0c;\u4f20\u7ed9CPU\u6267\u884c\u3002<\/p>\n<h2>\u4e8c\u3001\u865a\u62df\u673a\u6808<\/h2>\n<h3>1.\u57fa\u672c\u6982\u5ff5<\/h3>\n<p>\u6808-\u7ebf\u7a0b\u8fd0\u884c\u9700\u8981\u7684\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<p>\u6808\u5e27-\u7ec4\u6210\u6808\u7684\u5355\u5143&#xff0c;\u65b9\u6cd5\u8fd0\u884c\u9700\u8981\u7684\u5185\u5b58\u7a7a\u95f4&#xff0c;\u5305\u62ec&#xff1a;\u53c2\u6570&#xff0c;\u5c40\u90e8\u53d8\u91cf&#xff0c;\u8fd4\u56de\u5730\u5740\u3002<\/p>\n<p>\u6d3b\u52a8\u6808\u5e27-\u6b63\u5728\u6267\u884c\u65b9\u6cd5\u7684\u5185\u5b58\u7a7a\u95f4&#xff0c;\u4e00\u4e2a\u6808\u53ea\u6709\u4e00\u4e2a\u3002<\/p>\n<p>\u4e09\u4e2a\u5e38\u89c1\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u5783\u573e\u56de\u6536\u6d89\u53ca\u6808\u5185\u5b58&#xff1f; \u4e0d\u4f1a\u3002<\/li>\n<li>\u6808\u5185\u5b58\u5206\u914d\u8d8a\u5927\u8d8a\u597d\u5417&#xff1f; \u4e0d\u662f&#xff0c;\u4e00\u4e9b\u7cfb\u7edf\u9ed8\u8ba4\u4e3a1m&#xff0c;\u5212\u5206\u8d8a\u5927&#xff0c;\u7ebf\u7a0b\u8fd0\u884c\u6570\u8d8a\u5c11\u3002<\/li>\n<li>\u65b9\u6cd5\u5185\u5c40\u90e8\u53d8\u91cf\u662f\u5426\u7ebf\u7a0b\u5b89\u5168&#xff1f;<\/li>\n<li>\u5171\u4eab\u53d8\u91cf&#xff0c;\u5982static\u4fee\u9970\u7684\u9759\u6001\u53d8\u91cf&#xff0c;\u9700\u8981\u8003\u8651\u3002\u5982\u679c\u65b9\u6cd5\u5185\u5c40\u90e8\u53d8\u91cf\u672a\u9003\u79bb\u65b9\u6cd5\u7684\u4f5c\u7528\u8303\u56f4&#xff0c;\u5219\u4e3a\u7ebf\u7a0b\u5b89\u5168\u3002\u53cd\u4e4b\u9003\u79bb\u8303\u56f4\u7684\u9700\u8981\u8003\u8651&#xff0c;\u6bd4\u5982\u8fd4\u56de\u503c&#xff0c;\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u3002<\/li>\n<\/ul>\n<h3>2.\u6808\u5185\u5b58\u6ea2\u51fa<\/h3>\n<p>\u6808\u5e27\u8fc7\u591a\u4f1a\u5bfc\u81f4\u5185\u5b58\u6ea2\u51fa\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/03\/20260305092621-69a94c3defe52.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u6808\u5e27\u8fc7\u5927\u4e5f\u4f1a\u5bfc\u81f4\u5185\u5b58\u6ea2\u51fa\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/03\/20260305092624-69a94c4082145.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u800c\u5728Java\u4e2d\u62a5\u9519&#xff1a;StackOverFlowError\u6765\u8868\u793a\u6808\u5185\u5b58\u6ea2\u51fa\u3002<\/p>\n<h2>\u4e09\u3001\u672c\u5730\u65b9\u6cd5\u6808<\/h2>\n<p>\u672c\u5730\u65b9\u6cd5\u6808\u662f JVM \u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206&#xff0c;\u4e13\u95e8\u652f\u6491\u672c\u5730&#xff08;Native&#xff09;\u65b9\u6cd5\u7684\u6267\u884c\u3002\u652f\u6491native\u4fee\u9970\u7684\u65b9\u6cd5\u6267\u884c\u3002<\/p>\n<p>\u6267\u884c\u8fc7\u7a0b&#xff1a;<\/p>\n<ul>\n<li>\u5165\u6808&#xff1a;\u4e3a Native \u65b9\u6cd5\u521b\u5efa\u6808\u5e27&#xff0c;\u5b58\u50a8\u65b9\u6cd5\u7684\u5c40\u90e8\u53d8\u91cf\u3001\u53c2\u6570\u3001\u8fd4\u56de\u5730\u5740\u7b49&#xff1b;<\/li>\n<li>\u6267\u884c&#xff1a;\u901a\u8fc7 JNI&#xff08;Java NativeInterface&#xff09;\u8c03\u7528\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf \/ \u786c\u4ef6\u7684\u539f\u751f\u63a5\u53e3&#xff1b;<\/li>\n<li>\u51fa\u6808&#xff1a;\u65b9\u6cd5\u6267\u884c\u5b8c\u6bd5\u540e&#xff0c;\u91ca\u653e\u6808\u5e27\u5185\u5b58&#xff0c;\u8fd4\u56de\u7ed3\u679c\u5230 Java \u5c42\u3002<\/li>\n<\/ul>\n<h2>\u56db\u3001\u5806<\/h2>\n<p>\u5806\u662f JVM \u8fd0\u884c\u65f6\u6570\u636e\u533a\u4e2d\u6700\u5927\u3001\u6700\u6838\u5fc3\u7684\u4e00\u5757\u5185\u5b58\u533a\u57df&#xff0c;\u4e5f\u662f\u6240\u6709\u7ebf\u7a0b\u5171\u4eab\u7684\u5185\u5b58\u7a7a\u95f4&#xff0c;\u4e3b\u8981\u7528\u4e8e\u5b58\u50a8 Java \u7a0b\u5e8f\u8fd0\u884c\u65f6\u521b\u5efa\u7684\u5bf9\u8c61\u5b9e\u4f8b\u548c\u6570\u7ec4&#xff0c;\u662f\u5783\u573e\u56de\u6536&#xff08;GC&#xff09;\u7684\u6838\u5fc3\u64cd\u4f5c\u533a\u57df\u3002\u6bd4\u5982&#xff1a;new\u5173\u952e\u5b57\u521b\u5efa\u7684\u5bf9\u8c61\u4f1a\u4f7f\u7528\u5806\u5185\u5b58\u3002<\/p>\n<h3>4.1 \u5806\u5185\u5b58\u6ea2\u51fa<\/h3>\n<p>\u5806\u6ea2\u51fa\u672c\u8d28\u662f&#xff0c;\u5bf9\u8c61\u521b\u5efa\u901f\u5ea6 &gt; GC \u56de\u6536\u901f\u5ea6&#xff0c;\u6216\u5806\u7a7a\u95f4\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u5b58\u6d3b\u5bf9\u8c61\u3002\u4e24\u79cd\u5e38\u89c1\u5806\u6ea2\u51fa\u573a\u666f&#xff1a;\u5185\u5b58\u6cc4\u6f0f\u548c\u5185\u5b58\u6ea2\u51fa\u3002<\/p>\n<p>\u5185\u5b58\u6cc4\u6f0f&#xff0c;\u7a0b\u5e8f\u521b\u5efa\u7684\u5bf9\u8c61\u4e0d\u518d\u4f7f\u7528&#xff0c;\u4f46\u4ecd\u88ab\u5f3a\u5f15\u7528\u6301\u6709&#xff08;\u5982\u9759\u6001\u96c6\u5408\u3001\u672a\u5173\u95ed\u7684\u8fde\u63a5&#xff09;&#xff0c;\u5bfc\u81f4 GC \u65e0\u6cd5\u56de\u6536&#xff0c;\u5806\u5185\u5b58\u88ab\u6301\u7eed\u5360\u7528\u76f4\u81f3\u8017\u5c3d\u3002<\/p>\n<p>\u5178\u578b\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\u9759\u6001\u96c6\u5408&#xff08;static List\/Map&#xff09;\u65e0\u9650\u6dfb\u52a0\u5bf9\u8c61&#xff0c;\u4e14\u6c38\u4e0d\u6e05\u7406&#xff1b;<\/li>\n<li>\u7ebf\u7a0b\u6c60 \/ \u8fde\u63a5\u6c60\u672a\u5408\u7406\u914d\u7f6e&#xff0c;\u6838\u5fc3\u7ebf\u7a0b\u957f\u671f\u6301\u6709\u5927\u5bf9\u8c61\u5f15\u7528&#xff1b;<\/li>\n<li>\u76d1\u542c\u5668 \/ \u56de\u8c03\u51fd\u6570\u672a\u79fb\u9664&#xff0c;\u5bfc\u81f4\u5bf9\u8c61\u65e0\u6cd5\u88ab\u56de\u6536&#xff1b;<\/li>\n<li>IO \u6d41 \/ \u6570\u636e\u5e93\u8fde\u63a5\u672a\u5173\u95ed&#xff0c;\u5e95\u5c42\u8d44\u6e90\u5bf9\u8c61\u6cc4\u6f0f\u3002<\/li>\n<\/ul>\n<p>\u5185\u5b58\u6ea2\u51fa&#xff0c;\u7a0b\u5e8f\u672c\u8eab\u9700\u8981\u521b\u5efa\u5927\u91cf\u5b58\u6d3b\u5bf9\u8c61&#xff08;\u5982\u5904\u7406\u8d85\u5927\u6570\u636e\u96c6&#xff09;&#xff0c;\u5806\u914d\u7f6e\u7684\u6700\u5927\u5185\u5b58\u4e0d\u8db3\u4ee5\u652f\u6491\u4e1a\u52a1\u9700\u6c42&#xff0c;\u5373\u4f7f GC \u56de\u6536\u4e86\u6240\u6709\u65e0\u7528\u5bf9\u8c61&#xff0c;\u4ecd\u65e0\u6cd5\u5206\u914d\u65b0\u5185\u5b58\u3002<\/p>\n<p>\u5178\u578b\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\u52a0\u8f7d\u8d85\u5927\u6587\u4ef6 \/ \u6570\u636e\u96c6\u5230\u5185\u5b58&#xff08;\u5982\u4e00\u6b21\u6027\u8bfb\u53d6 10GB \u65e5\u5fd7\u5230 List&#xff09;&#xff1b;<\/li>\n<li>\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u77ed\u65f6\u95f4\u521b\u5efa\u5927\u91cf\u4e34\u65f6\u5bf9\u8c61&#xff0c;Minor GC\u6765\u4e0d\u53ca\u56de\u6536&#xff1b;<\/li>\n<li>JVM \u53c2\u6570 -Xmx \u914d\u7f6e\u8fc7\u5c0f&#xff0c;\u8fdc\u4f4e\u4e8e\u4e1a\u52a1\u5b9e\u9645\u9700\u8981\u3002<\/li>\n<\/ul>\n<p>\u5728java\u4e2d\u62a5\u9519&#xff1a;OutOfMemoryError: java heap space\u3002<\/p>\n<h2>\u4e94\u3001\u65b9\u6cd5\u533a<\/h2>\n<p>\u65b9\u6cd5\u533a\u662f\u662f JVM \u8fd0\u884c\u65f6\u6570\u636e\u533a\u4e2d\u7ebf\u7a0b\u5171\u4eab\u7684\u4e00\u5757\u5185\u5b58\u533a\u57df&#xff0c;\u4e5f\u88ab\u79f0\u4e3a \u201c\u6c38\u4e45\u4ee3\u201d&#xff08;JDK 8 \u524d&#xff09;\u6216 \u201c\u5143\u7a7a\u95f4\u201d&#xff08;JDK 8&#043;&#xff09;&#xff0c;\u6838\u5fc3\u4f5c\u7528\u662f\u5b58\u50a8\u7c7b\u7684\u5143\u6570\u636e\u3001\u5e38\u91cf\u3001\u9759\u6001\u53d8\u91cf\u7b49\u4e0e\u7c7b\u7ed3\u6784\u76f8\u5173\u7684\u4fe1\u606f&#xff0c;\u662f\u7c7b\u52a0\u8f7d\u673a\u5236\u7684\u6838\u5fc3\u8f7d\u4f53\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/03\/20260305092625-69a94c41bffcb.png\" alt=\"JAva\" \/> JDK8\u524d\u7684\u65b9\u6cd5\u533a <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/03\/20260305092627-69a94c43a223d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> JDK8\u540e\u7684\u65b9\u6cd5\u533a<\/p>\n<h3>5.1 \u65b9\u6cd5\u533a\u5185\u5b58\u6ea2\u51fa<\/h3>\n<ul>\n<li>JDK 7 \u53ca\u4e4b\u524d&#xff1a;\u5f02\u5e38\u7c7b\u578b\u4e3a java.lang.OutOfMemoryError: PermGen space&#xff08;\u6c38\u4e45\u4ee3\u6ea2\u51fa&#xff09;&#xff1b;<\/li>\n<li>JDK8 \u53ca\u4e4b\u540e&#xff1a;\u5f02\u5e38\u7c7b\u578b\u4e3a java.lang.OutOfMemoryError: Metaspace&#xff08;\u5143\u7a7a\u95f4\u6ea2\u51fa&#xff09;&#xff1b;<\/li>\n<\/ul>\n<p>\u65b9\u6cd5\u533a\u5185\u5b58\u6ea2\u51fa\u7684\u6700\u5e38\u89c1\u539f\u56e0&#xff1a;\u52a8\u6001\u751f\u6210\u5927\u91cf\u7c7b<\/p>\n<ul>\n<li>Spring\/CGLib\/ASM \u52a8\u6001\u4ee3\u7406&#xff1a;\u5982\u6279\u91cf\u4e3a\u7c7b\u751f\u6210\u4ee3\u7406\u7c7b&#xff08;\u6bcf\u4e2a\u4ee3\u7406\u7c7b\u90fd\u662f\u65b0\u7684 Class \u5bf9\u8c61&#xff09;&#xff1b;<\/li>\n<li>JSP \u52a8\u6001\u7f16\u8bd1&#xff1a;JSP\u6bcf\u6b21\u4fee\u6539\u90fd\u4f1a\u91cd\u65b0\u7f16\u8bd1\u4e3a Servlet \u7c7b&#xff0c;\u70ed\u90e8\u7f72\u9891\u7e41\u65f6\u7c7b\u6570\u91cf\u66b4\u589e&#xff1b;<\/li>\n<li>\u52a8\u6001\u5b57\u8282\u7801\u751f\u6210&#xff1a;\u5982\u53cd\u5c04\u3001\u52a8\u6001\u4ee3\u7406\u6846\u67b6&#xff08;MyBatis\u3001Hibernate&#xff09;\u6279\u91cf\u751f\u6210\u6620\u5c04\u7c7b\u3002<\/li>\n<\/ul>\n<h3>5.2\u5e38\u91cf\u6c60<\/h3>\n<p>\u5e38\u91cf\u6c60&#xff1a;\u4e00\u5f20\u5e38\u91cf\u8868&#xff0c;\u865a\u62df\u673a\u6307\u4ee4\u6839\u636e\u8fd9\u5f20\u8868\u627e\u5230\u8981\u6267\u884c\u7684\u7c7b\u540d\u3001\u65b9\u6cd5\u540d\u3001\u53c2\u6570\u7c7b\u578b\u3001\u5b57\u9762\u91cf\u7b49\u4fe1\u606f\u3002<\/p>\n<p>\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60&#xff0c;\u5e38\u91cf\u6c60\u662f.class\u6587\u4ef6\u7684&#xff0c;\u5f53\u8be5\u7c7b\u88ab\u52a0\u8f7d\u65f6&#xff0c;\u5176\u4fe1\u606f\u4f1a\u52a0\u8f7d\u5230\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60\u4e2d&#xff0c;\u5e76\u5c06\u91cc\u9762\u7684\u7b26\u53f7\u5730\u5740\u53d8\u4e3a\u771f\u5b9e\u5730\u5740\u3002<\/p>\n<hr 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