{"id":98460,"date":"2026-08-31T19:56:43","date_gmt":"2026-08-31T11:56:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/98460.html"},"modified":"2026-08-31T19:56:43","modified_gmt":"2026-08-31T11:56:43","slug":"%e5%a4%a7%e7%99%bd%e8%af%9d%e8%af%b4java%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f-49-%e7%bb%bc%e5%90%88%e5%ae%9e%e6%88%98%e4%b8%ad%ef%bc%9a%e8%90%a5%e9%94%80%e5%85%a8%e9%93%be%e8%b7%af%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/98460.html","title":{"rendered":"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528"},"content":{"rendered":"<p>&#x1f4cc; PDF&#xff1a;AI\u4eba\u5de5\u667a\u80fd \u2014 \u5927\u6a21\u578b\u5fae\u8c03\u4e0e\u90e8\u7f72\u5b9e\u6218\u9879\u76ee<\/p>\n<h2>\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528<\/h2>\n<p>&#x1f4cc; \u4e00\u53e5\u8bdd\u672c\u8d28&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u662f\u8bbe\u8ba1\u6a21\u5f0f\u7684&#034;\u9ad8\u7ea7\u6218\u573a&#034;&#xff0c;5 \u5927\u6a21\u5f0f\u89e3\u51b3\u89c4\u5219\u52a8\u6001\u5316\u3001\u8ba1\u7b97\u6027\u80fd\u3001\u7075\u6d3b\u6269\u5c55\u3002<\/p>\n<p>&#x1f3f7;\ufe0f \u6807\u7b7e&#xff1a;\u7efc\u5408\u5b9e\u6218 \/ \u8425\u9500\u5168\u94fe\u8def \/ \u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c \/ \u5927\u767d\u5546\u57ce \u00a0 &#x1f3af; \u9002\u5408&#xff1a;\u6240\u6709 Java \u5de5\u7a0b\u5e08<\/p>\n<hr \/>\n<h3>\u76ee\u5f55<\/h3>\n<ul>\n<li>\u4e00\u3001\u8425\u9500\u5168\u94fe\u8def\u6d41\u7a0b\u56fe<\/li>\n<li>\u4e8c\u30015 \u5927\u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c<\/li>\n<li>\u4e09\u3001\u5b8c\u6574\u4ee3\u7801\u5b9e\u6218<\/li>\n<li>\u56db\u3001\u6a21\u5f0f\u534f\u4f5c\u5173\u7cfb<\/li>\n<li>\u4e94\u3001\u6027\u80fd\u4f18\u5316\u603b\u7ed3<\/li>\n<li>\u516d\u3001\u672c\u7bc7\u5c0f\u7ed3 &#043; \u4e0b\u7bc7\u9884\u544a<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e00\u3001\u8425\u9500\u5168\u94fe\u8def\u6d41\u7a0b\u56fe<\/h3>\n<p>\u7528\u6237\u4e0b\u5355<br \/>\n  \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u8425\u9500\u89c4\u5219\u52a0\u8f7d&#xff08;\u89e3\u91ca\u5668&#xff09;                 \u2502<br \/>\n\u2502 &#034;FULL_REDUCE(100,10) AND DISCOUNT(0.8)&#034; \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4f18\u60e0\u8ba1\u7b97\u94fe&#xff08;\u8d23\u4efb\u94fe&#xff09;                   \u2502<br \/>\n\u2502 FullReduce \u2192 Discount \u2192 InstantReduce \u2502<br \/>\n\u2502 \u2192 Coupon \u2192 Points                    \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u8425\u9500\u89c4\u5219\u4f5c\u7528\u4e8e\u5546\u54c1&#xff08;\u8bbf\u95ee\u8005&#xff09;            \u2502<br \/>\n\u2502 Goods \/ Order \/ Coupon \u4e09\u5143\u7d20         \u2502<br \/>\n\u2502 &#043; FullReduceVisitor \/ DiscountVisitor \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4f18\u60e0\u5238\u6a21\u677f&#xff08;\u4eab\u5143&#xff09;                     \u2502<br \/>\n\u2502 \u4f18\u60e0\u5238\u6a21\u677f\u5171\u4eab&#xff0c;\u51cf\u5c11\u5185\u5b58               \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4f18\u60e0\u7b56\u7565&#xff08;\u7b56\u7565&#xff09;                       \u2502<br \/>\n\u2502 \u6ee1\u51cf\/\u6298\u6263\/\u7acb\u51cf\/\u4f18\u60e0\u5238 \u591a\u79cd\u7b97\u6cd5          \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u8f93\u51fa\u6700\u7ec8\u4ef7\u683c<\/p>\n<hr \/>\n<h3>\u4e8c\u30015 \u5927\u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c<\/h3>\n<h4>2.1 \u6a21\u5f0f\u4e00&#xff1a;\u8d23\u4efb\u94fe&#xff08;\u4f18\u60e0\u8ba1\u7b97\u94fe&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u8d23\u4efb\u94fe&#xff1a;\u4f18\u60e0\u94fe<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">DiscountHandler<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DiscountContext<\/span> context<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">DiscountChain<\/span> chain<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">FullReduceHandler<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">DiscountHandler<\/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\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DiscountContext<\/span> ctx<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">DiscountChain<\/span> chain<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">compareTo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;100&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            ctx<span class=\"token punctuation\">.<\/span><span class=\"token function\">setAmount<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">subtract<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;10&#034;<\/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><br \/>\n        chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span>ctx<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>\u4f5c\u7528&#xff1a;\u4f18\u60e0\u89c4\u5219\u53ef\u52a8\u6001\u7ec4\u5408\u3002<\/p>\n<h4>2.2 \u6a21\u5f0f\u4e8c&#xff1a;\u8bbf\u95ee\u8005&#xff08;\u591a\u5143\u7d20\u591a\u89c4\u5219&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u8bbf\u95ee\u8005&#xff1a;\u8425\u9500\u4f5c\u7528\u4e8e\u591a\u5143\u7d20<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">MarketingElement<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MarketingVisitor<\/span> visitor<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\">interface<\/span> <span class=\"token class-name\">MarketingVisitor<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Goods<\/span> goods<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Coupon<\/span> coupon<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\">class<\/span> <span class=\"token class-name\">Goods<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MarketingElement<\/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\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MarketingVisitor<\/span> visitor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        visitor<span class=\"token punctuation\">.<\/span><span class=\"token function\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/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\">class<\/span> <span class=\"token class-name\">FullReduceVisitor<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MarketingVisitor<\/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\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Goods<\/span> goods<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6ee1\u51cf\u4f5c\u7528\u4e8e\u5546\u54c1<\/span><br \/>\n    <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\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6ee1\u51cf\u4f5c\u7528\u4e8e\u8ba2\u5355<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f5c\u7528&#xff1a;3 \u79cd\u5143\u7d20 \u00d7 8 \u79cd\u89c4\u5219 &#061; 24 \u5904\u903b\u8f91&#xff0c;\u7edf\u4e00\u62bd\u8c61\u3002<\/p>\n<h4>2.3 \u6a21\u5f0f\u4e09&#xff1a;\u89e3\u91ca\u5668&#xff08;\u4e1a\u52a1\u89c4\u5219\u52a8\u6001\u5316&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u89e3\u91ca\u5668&#xff1a;\u81ea\u5b9a\u4e49\u89c4\u5219\u8bed\u8a00<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">RuleExpression<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">BigDecimal<\/span> <span class=\"token function\">interpret<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> context<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\">class<\/span> <span class=\"token class-name\">FullReduceExpression<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">RuleExpression<\/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 class-name\">BigDecimal<\/span> <span class=\"token function\">interpret<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> context<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6ee1 100 \u51cf 10<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u4e1a\u52a1\u65b9\u914d\u7f6e\u89c4\u5219\u5b57\u7b26\u4e32<br \/>\n * &#034;FULL_REDUCE(100, 10) AND DISCOUNT(0.8)&#034;<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">RuleParser<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">RuleExpression<\/span> <span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> rule<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u89e3\u6790 &#043; \u751f\u6210\u8868\u8fbe\u5f0f<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f5c\u7528&#xff1a;\u4e1a\u52a1\u65b9\u53ef\u89c6\u5316\u914d\u7f6e\u89c4\u5219\u3002<\/p>\n<h4>2.4 \u6a21\u5f0f\u56db&#xff1a;\u4eab\u5143&#xff08;\u4f18\u60e0\u5238\u6a21\u677f&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u4eab\u5143&#xff1a;\u4f18\u60e0\u5238\u6a21\u677f\u5171\u4eab<br \/>\n *\/<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CouponTemplateFactory<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">ConcurrentHashMap<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">CouponTemplate<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> templatePool<br \/>\n        <span class=\"token operator\">&#061;<\/span> <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>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CouponTemplate<\/span> <span class=\"token function\">getTemplate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> code<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> templatePool<span class=\"token punctuation\">.<\/span><span class=\"token function\">computeIfAbsent<\/span><span class=\"token punctuation\">(<\/span>code<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">createTemplate<\/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>\u4f5c\u7528&#xff1a;100 \u4e07\u5f20\u4f18\u60e0\u5238\u5171\u4eab\u6a21\u677f&#xff0c;\u4ece 10GB \u964d\u5230 50MB\u3002<\/p>\n<h4>2.5 \u6a21\u5f0f\u4e94&#xff1a;\u7b56\u7565&#xff08;\u652f\u4ed8\u4f18\u60e0&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u7b56\u7565&#xff1a;\u652f\u4ed8\u4f18\u60e0<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">DiscountStrategy<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">BigDecimal<\/span> <span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">BigDecimal<\/span> amount<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">NewUserDiscount<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">DiscountStrategy<\/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 class-name\">BigDecimal<\/span> <span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">BigDecimal<\/span> amount<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span><span class=\"token function\">isNew<\/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 keyword\">return<\/span> amount<span class=\"token punctuation\">.<\/span><span class=\"token function\">multiply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;0.9&#034;<\/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 keyword\">return<\/span> amount<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 annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">VipDiscount<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">DiscountStrategy<\/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 class-name\">BigDecimal<\/span> <span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">BigDecimal<\/span> amount<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">.<\/span><span class=\"token function\">isVip<\/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 keyword\">return<\/span> amount<span class=\"token punctuation\">.<\/span><span class=\"token function\">multiply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;0.8&#034;<\/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 keyword\">return<\/span> amount<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f5c\u7528&#xff1a;\u52a0\u65b0\u4f18\u60e0\u7b56\u7565\u53ea\u52a0 1 \u4e2a\u7c7b\u3002<\/p>\n<hr \/>\n<h3>\u4e09\u3001\u5b8c\u6574\u4ee3\u7801\u5b9e\u6218<\/h3>\n<h4>3.1 \u8425\u9500\u670d\u52a1&#xff08;\u7efc\u5408&#xff09;<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u8425\u9500\u670d\u52a1&#xff1a;5 \u5927\u6a21\u5f0f\u534f\u4f5c<br \/>\n *\/<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MarketingService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">DiscountHandler<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> handlers<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8d23\u4efb\u94fe<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">MarketingContext<\/span> marketingContext<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7b56\u7565<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">CouponTemplateFactory<\/span> templateFactory<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4eab\u5143<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u2705 \u8ba1\u7b97\u6700\u7ec8\u91d1\u989d<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">BigDecimal<\/span> <span class=\"token function\">calculate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> rules<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">BigDecimal<\/span> amount <span class=\"token operator\">&#061;<\/span> order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getTotal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 1\ufe0f\u20e3 \u89e3\u91ca\u5668&#xff1a;\u89e3\u6790\u89c4\u5219<\/span><br \/>\n        <span class=\"token class-name\">RuleExpression<\/span> expression <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">RuleParser<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseAnd<\/span><span class=\"token punctuation\">(<\/span>rules<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Map<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> ctx <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashMap<\/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><br \/>\n        ctx<span class=\"token punctuation\">.<\/span><span class=\"token function\">put<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;amount&#034;<\/span><span class=\"token punctuation\">,<\/span> amount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        amount <span class=\"token operator\">&#061;<\/span> expression<span class=\"token punctuation\">.<\/span><span class=\"token function\">interpret<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 2\ufe0f\u20e3 \u8d23\u4efb\u94fe&#xff1a;\u4f18\u60e0\u53e0\u52a0<\/span><br \/>\n        <span class=\"token class-name\">DiscountContext<\/span> dc <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DiscountContext<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        dc<span class=\"token punctuation\">.<\/span><span class=\"token function\">setAmount<\/span><span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        dc<span class=\"token punctuation\">.<\/span><span class=\"token function\">setOrder<\/span><span class=\"token punctuation\">(<\/span>order<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">DiscountChain<\/span> chain <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DiscountChain<\/span><span class=\"token punctuation\">(<\/span>handlers<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        chain<span class=\"token punctuation\">.<\/span><span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span>dc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        amount <span class=\"token operator\">&#061;<\/span> dc<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 3\ufe0f\u20e3 \u7b56\u7565&#xff1a;\u7528\u6237\u4f18\u60e0<\/span><br \/>\n        amount <span class=\"token operator\">&#061;<\/span> marketingContext<span class=\"token punctuation\">.<\/span><span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span>amount<span class=\"token punctuation\">,<\/span> order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getUser<\/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 comment\">\/\/ 4\ufe0f\u20e3 \u4eab\u5143&#xff1a;\u4f18\u60e0\u5238\u6a21\u677f<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Coupon<\/span> coupon <span class=\"token operator\">:<\/span> order<span class=\"token punctuation\">.<\/span><span class=\"token function\">getCoupons<\/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 class-name\">CouponTemplate<\/span> template <span class=\"token operator\">&#061;<\/span> templateFactory<span class=\"token punctuation\">.<\/span><span class=\"token function\">getTemplate<\/span><span class=\"token punctuation\">(<\/span>coupon<span class=\"token punctuation\">.<\/span><span class=\"token function\">getCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            amount <span class=\"token operator\">&#061;<\/span> template<span class=\"token punctuation\">.<\/span><span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span>amount<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> amount<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.2 \u8bbf\u95ee\u8005&#xff1a;\u8425\u9500\u8ba1\u7b97<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u8bbf\u95ee\u8005&#xff1a;\u8425\u9500\u89c4\u5219\u4f5c\u7528\u4e8e\u591a\u5143\u7d20<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MarketingCalculator<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MarketingVisitor<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">BigDecimal<\/span> totalDiscount <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">BigDecimal<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">ZERO<\/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\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Goods<\/span> goods<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5546\u54c1\u5355\u72ec\u6298\u6263<\/span><br \/>\n    <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\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Order<\/span> order<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8ba2\u5355\u6574\u4f53\u6298\u6263<\/span><br \/>\n    <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\">visit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Coupon<\/span> coupon<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f18\u60e0\u5238\u6298\u6263<\/span><br \/>\n        totalDiscount <span class=\"token operator\">&#061;<\/span> totalDiscount<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>coupon<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAmount<\/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><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.3 \u8d23\u4efb\u94fe&#xff1a;\u4f18\u60e0\u53e0\u52a0<\/h4>\n<p><span class=\"token comment\">\/**<br \/>\n * \u2705 \u8d23\u4efb\u94fe&#xff1a;5 \u79cd\u4f18\u60e0\u53e0\u52a0<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DiscountChain<\/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\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">DiscountHandler<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> handlers<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> index <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\">void<\/span> <span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">DiscountContext<\/span> context<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>index <span class=\"token operator\">&lt;<\/span> handlers<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/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 class-name\">DiscountHandler<\/span> handler <span class=\"token operator\">&#061;<\/span> handlers<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>index<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            handler<span class=\"token punctuation\">.<\/span><span class=\"token function\">apply<\/span><span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/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<hr \/>\n<h3>\u56db\u3001\u6a21\u5f0f\u534f\u4f5c\u5173\u7cfb<\/h3>\n<p>\u8425\u9500\u5168\u94fe\u8def\u7528\u4e86\u54ea\u4e9b\u6a21\u5f0f&#xff1f;<br \/>\n\u2502<br \/>\n\u251c\u2500\u2500 1. \u8d23\u4efb\u94fe&#xff08;DiscountChain&#xff09;<br \/>\n\u2502   \u2514\u2500\u2500 5 \u79cd\u4f18\u60e0\u53e0\u52a0<br \/>\n\u2502<br \/>\n\u251c\u2500\u2500 2. \u8bbf\u95ee\u8005&#xff08;MarketingVisitor&#xff09;<br \/>\n\u2502   \u2514\u2500\u2500 3 \u79cd\u5143\u7d20 \u00d7 8 \u79cd\u89c4\u5219<br \/>\n\u2502<br \/>\n\u251c\u2500\u2500 3. \u89e3\u91ca\u5668&#xff08;RuleParser&#xff09;<br \/>\n\u2502   \u2514\u2500\u2500 \u4e1a\u52a1\u65b9\u914d\u7f6e\u89c4\u5219<br \/>\n\u2502<br \/>\n\u251c\u2500\u2500 4. \u4eab\u5143&#xff08;CouponTemplateFactory&#xff09;<br \/>\n\u2502   \u2514\u2500\u2500 \u4f18\u60e0\u5238\u6a21\u677f\u5171\u4eab<br \/>\n\u2502<br \/>\n\u2514\u2500\u2500 5. \u7b56\u7565&#xff08;DiscountStrategy&#xff09;<br \/>\n    \u2514\u2500\u2500 \u7528\u6237\u5206\u5c42\u4f18\u60e0<\/p>\n<h4>4.1 \u6a21\u5f0f\u534f\u4f5c\u56fe<\/h4>\n<p>\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4e1a\u52a1\u65b9\u914d\u7f6e\u89c4\u5219&#xff08;\u89e3\u91ca\u5668&#xff09;                \u2502<br \/>\n\u2502 &#034;FULL_REDUCE(100,10) AND &#8230;&#034;         \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u89e3\u6790\u89c4\u5219&#xff08;\u89e3\u91ca\u5668&#xff09;                    \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4f18\u60e0\u53e0\u52a0&#xff08;\u8d23\u4efb\u94fe&#xff09;                    \u2502<br \/>\n\u2502 FullReduce \u2192 Discount \u2192 &#8230;          \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u8425\u9500\u4f5c\u7528\u4e8e\u591a\u5143\u7d20&#xff08;\u8bbf\u95ee\u8005&#xff09;              \u2502<br \/>\n\u2502 Goods \/ Order \/ Coupon               \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u7528\u6237\u5206\u5c42\u4f18\u60e0&#xff08;\u7b56\u7565&#xff09;                   \u2502<br \/>\n\u2502 NewUser \/ Vip \/ Normal               \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<br \/>\n               \u2193<br \/>\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<br \/>\n\u2502 \u4f18\u60e0\u5238\u6a21\u677f&#xff08;\u4eab\u5143&#xff09;                     \u2502<br \/>\n\u2502 \u6a21\u677f\u5171\u4eab &#043; \u7528\u6237\u5b9e\u4f8b                    \u2502<br \/>\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n<hr \/>\n<h3>\u4e94\u3001\u6027\u80fd\u4f18\u5316\u603b\u7ed3<\/h3>\n<h4>5.1 \u5185\u5b58\u4f18\u5316<\/h4>\n<table>\n<tr>\u573a\u666f\u4f18\u5316\u524d\u4f18\u5316\u540e\u6a21\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>\u5546\u54c1\u6807\u7b7e<\/td>\n<td>5GB<\/td>\n<td>50MB<\/td>\n<td>\u4eab\u5143<\/td>\n<\/tr>\n<tr>\n<td>\u4f18\u60e0\u5238\u6a21\u677f<\/td>\n<td>10GB<\/td>\n<td>50MB<\/td>\n<td>\u4eab\u5143<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u5178\u6570\u636e<\/td>\n<td>100MB<\/td>\n<td>1MB<\/td>\n<td>\u4eab\u5143<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5.2 CPU \u4f18\u5316<\/h4>\n<table>\n<tr>\u573a\u666f\u4f18\u5316\u524d\u4f18\u5316\u540e\u6a21\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>\u4f18\u60e0\u8ba1\u7b97<\/td>\n<td>O(N\u00b2)<\/td>\n<td>O(N)<\/td>\n<td>\u8d23\u4efb\u94fe<\/td>\n<\/tr>\n<tr>\n<td>\u591a\u5143\u7d20\u904d\u5386<\/td>\n<td>\u591a\u6b21\u5faa\u73af<\/td>\n<td>\u4e00\u6b21\u904d\u5386<\/td>\n<td>\u8bbf\u95ee\u8005<\/td>\n<\/tr>\n<tr>\n<td>\u89c4\u5219\u89e3\u6790<\/td>\n<td>\u6bcf\u6b21\u89e3\u6790<\/td>\n<td>\u7f16\u8bd1\u7f13\u5b58<\/td>\n<td>\u89e3\u91ca\u5668<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5.3 \u53ef\u7ef4\u62a4\u6027<\/h4>\n<table>\n<tr>\u573a\u666f\u4f18\u5316\u524d\u4f18\u5316\u540e\u6a21\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>\u52a0\u65b0\u4f18\u60e0<\/td>\n<td>\u6539 8 \u5904<\/td>\n<td>\u52a0 1 \u4e2a\u7c7b<\/td>\n<td>\u7b56\u7565 &#043; \u8d23\u4efb\u94fe<\/td>\n<\/tr>\n<tr>\n<td>\u6539\u89c4\u5219<\/td>\n<td>\u6539\u4ee3\u7801<\/td>\n<td>\u6539\u914d\u7f6e<\/td>\n<td>\u89e3\u91ca\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u52a0\u65b0\u5143\u7d20<\/td>\n<td>\u6539 8 \u5904<\/td>\n<td>\u52a0 1 \u4e2a\u5143\u7d20<\/td>\n<td>\u8bbf\u95ee\u8005<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>\u516d\u3001\u672c\u7bc7\u5c0f\u7ed3 &#043; \u4e0b\u7bc7\u9884\u544a<\/h3>\n<h4>6.1 \u672c\u7bc7\u5c0f\u7ed3<\/h4>\n<li>\u8425\u9500\u5168\u94fe\u8def &#061; 5 \u5927\u6a21\u5f0f\u534f\u4f5c<\/li>\n<li>\u6027\u80fd\u4f18\u5316 &#043; \u53ef\u7ef4\u62a4\u6027\u53cc\u8d62<\/li>\n<li>\u4e1a\u52a1\u65b9\u53ef\u89c6\u5316\u914d\u7f6e&#xff08;\u89e3\u91ca\u5668&#xff09;<\/li>\n<h4>6.2 \u5b9e\u6218\u5fc3\u6cd5<\/h4>\n<ul>\n<li>\u8d23\u4efb\u94fe &#043; \u89e3\u91ca\u5668&#xff1a;\u89c4\u5219\u52a8\u6001\u5316<\/li>\n<li>\u8bbf\u95ee\u8005 &#043; \u4eab\u5143&#xff1a;\u6027\u80fd\u4e0e\u53ef\u7ef4\u62a4<\/li>\n<li>\u7b56\u7565 &#043; \u5355\u4f8b&#xff1a;\u5206\u5c42\u7528\u6237\u4f18\u60e0<\/li>\n<\/ul>\n<h4>6.3 \u4e0b\u7bc7\u9884\u544a<\/h4>\n<p>\u7b2c 50 \u7bc7\u3010\u7efc\u5408\u5b9e\u6218 &#8211; \u4e0b\u7bc7\u3011&#xff1a;\u5927\u767d\u5546\u57ce\u6280\u672f\u67b6\u6784\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528<\/p>\n<p>\u4e0b\u4e00\u7bc7\u6211\u4eec\u770b\u6280\u672f\u67b6\u6784\u5168\u94fe\u8def\u2014\u2014\u76d1\u63a7\/\u914d\u7f6e\/\u4e2d\u95f4\u4ef6\/\u7f13\u5b58\/\u5206\u5e03\u5f0f&#xff0c;\u7528\u5230\u4e86\u53e6\u5916 6 \u5927\u6a21\u5f0f&#xff1a;<\/p>\n<li>\u9002\u914d\u5668 &#043; \u88c5\u9970\u5668 &#043; \u5916\u89c2 &#043; \u6865\u63a5 &#043; \u4ee3\u7406 &#043; \u4e2d\u4ecb\u8005<\/li>\n<li>Spring Cloud Alibaba \u5168\u5bb6\u6876<\/li>\n<li>\u5fae\u670d\u52a1\u67b6\u6784<\/li>\n<p>\u5e76\u9644\u5b8c\u6574\u7684\u4ee3\u7801 &#043; \u6d41\u7a0b\u56fe &#043; \u6a21\u5f0f\u534f\u4f5c\u56fe\u3002<\/p>\n<hr \/>\n<p><font size=\"4\"><b>\u89c9\u5f97\u5bf9\u60a8\u6709\u5e2e\u52a9&#xff0c;\u9ebb\u70e6<\/b><b><font color=\"red\">\u70b9\u70b9\u5173\u6ce8\u5566<\/font><\/b><b>&#xff0c;\u60a8\u7684\u5173\u6ce8\u662f\u6211\u521b\u4f5c\u7684\u6700\u5927\u52a8\u529b~ &#x1f3af;<\/b><\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#x1f4cc; PDF&#xff1a;AI\u4eba\u5de5\u667a\u80fd \u2014 \u5927\u6a21\u578b\u5fae\u8c03\u4e0e\u90e8\u7f72\u5b9e\u6218\u9879\u76ee \u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 &#x1f4cc; \u4e00\u53e5\u8bdd\u672c\u8d28&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u662f\u8bbe\u8ba1\u6a21\u5f0f\u7684\\&#8221;\u9ad8\u7ea7\u6218\u573a\\&#8221;&#xff0c;5 \u5927\u6a21\u5f0f\u89e3\u51b3\u89c4\u5219\u52a8\u6001\u5316\u3001\u8ba1\u7b97\u6027\u80fd\u3001\u7075\u6d3b\u6269\u5c55\u3002 &#x1f3f7;\ufe0f \u6807\u7b7e&#xff1a;\u7efc\u5408\u5b9e\u6218 \/ \u8425\u9500\u5168\u94fe\u8def \/ \u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c \/ \u5927\u767d\u5546\u57ce \u00a0 &#x1f3af; \u9002\u5408&#xff1a;\u6240\u6709 Java \u5de5\u7a0b\u5e08 <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11279,11278,11280,99,2874],"topic":[],"class_list":["post-98460","post","type-post","status-publish","format-standard","hentry","category-server","tag-11279","tag-11278","tag-11280","tag-java","tag-2874"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/98460.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"&#x1f4cc; PDF&#xff1a;AI\u4eba\u5de5\u667a\u80fd \u2014 \u5927\u6a21\u578b\u5fae\u8c03\u4e0e\u90e8\u7f72\u5b9e\u6218\u9879\u76ee \u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 &#x1f4cc; \u4e00\u53e5\u8bdd\u672c\u8d28&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u662f\u8bbe\u8ba1\u6a21\u5f0f\u7684&quot;\u9ad8\u7ea7\u6218\u573a&quot;&#xff0c;5 \u5927\u6a21\u5f0f\u89e3\u51b3\u89c4\u5219\u52a8\u6001\u5316\u3001\u8ba1\u7b97\u6027\u80fd\u3001\u7075\u6d3b\u6269\u5c55\u3002 &#x1f3f7;\ufe0f \u6807\u7b7e&#xff1a;\u7efc\u5408\u5b9e\u6218 \/ \u8425\u9500\u5168\u94fe\u8def \/ \u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c \/ \u5927\u767d\u5546\u57ce \u00a0 &#x1f3af; \u9002\u5408&#xff1a;\u6240\u6709 Java \u5de5\u7a0b\u5e08\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/98460.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-31T11:56:43+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/98460.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/98460.html\",\"name\":\"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-08-31T11:56:43+00:00\",\"dateModified\":\"2026-08-31T11:56:43+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/98460.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/98460.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/98460.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/98460.html","og_locale":"zh_CN","og_type":"article","og_title":"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"&#x1f4cc; PDF&#xff1a;AI\u4eba\u5de5\u667a\u80fd \u2014 \u5927\u6a21\u578b\u5fae\u8c03\u4e0e\u90e8\u7f72\u5b9e\u6218\u9879\u76ee \u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 &#x1f4cc; \u4e00\u53e5\u8bdd\u672c\u8d28&#xff1a;\u8425\u9500\u5168\u94fe\u8def\u662f\u8bbe\u8ba1\u6a21\u5f0f\u7684\"\u9ad8\u7ea7\u6218\u573a\"&#xff0c;5 \u5927\u6a21\u5f0f\u89e3\u51b3\u89c4\u5219\u52a8\u6001\u5316\u3001\u8ba1\u7b97\u6027\u80fd\u3001\u7075\u6d3b\u6269\u5c55\u3002 &#x1f3f7;\ufe0f \u6807\u7b7e&#xff1a;\u7efc\u5408\u5b9e\u6218 \/ \u8425\u9500\u5168\u94fe\u8def \/ \u8bbe\u8ba1\u6a21\u5f0f\u534f\u4f5c \/ \u5927\u767d\u5546\u57ce \u00a0 &#x1f3af; \u9002\u5408&#xff1a;\u6240\u6709 Java \u5de5\u7a0b\u5e08","og_url":"https:\/\/www.wsisp.com\/helps\/98460.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-08-31T11:56:43+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"3 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/98460.html","url":"https:\/\/www.wsisp.com\/helps\/98460.html","name":"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-08-31T11:56:43+00:00","dateModified":"2026-08-31T11:56:43+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/98460.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/98460.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/98460.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u5927\u767d\u8bdd\u8bf4Java\u8bbe\u8ba1\u6a21\u5f0f-49-\u7efc\u5408\u5b9e\u6218\u4e2d\uff1a\u8425\u9500\u5168\u94fe\u8def\u8bbe\u8ba1\u6a21\u5f0f\u5e94\u7528"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/98460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=98460"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/98460\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=98460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=98460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=98460"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=98460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}