{"id":727,"date":"2025-02-26T19:42:00","date_gmt":"2025-02-26T11:42:00","guid":{"rendered":"https:\/\/www.huangkeqin.cn\/?p=727"},"modified":"2025-02-26T19:42:13","modified_gmt":"2025-02-26T11:42:13","slug":"%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e4%b9%8b%e3%80%8a%e8%b4%a3%e4%bb%bb%e9%93%be%e6%a8%a1%e5%bc%8f%e3%80%8b","status":"publish","type":"post","link":"https:\/\/www.huangkeqin.cn\/index.php\/2025\/02\/26\/%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e4%b9%8b%e3%80%8a%e8%b4%a3%e4%bb%bb%e9%93%be%e6%a8%a1%e5%bc%8f%e3%80%8b\/","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u300a\u8d23\u4efb\u94fe\u6a21\u5f0f\u300b"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u8d23\u4efb\u94fe\u6a21\u5f0f\uff08Chain of Responsibility Pattern\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u6982\u5ff5<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d23\u4efb\u94fe\u6a21\u5f0f\u662f\u4e00\u79cd\u884c\u4e3a\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b83\u5141\u8bb8\u5c06\u8bf7\u6c42\u6cbf\u7740\u5904\u7406\u8005\u94fe\u4f20\u9012\uff0c\u76f4\u5230\u6709\u5904\u7406\u8005\u5904\u7406\u5b83\u6216\u8005\u94fe\u7684\u672b\u7aef\u3002\u6bcf\u4e2a\u5904\u7406\u8005\u90fd\u6301\u6709\u5bf9\u4e0b\u4e00\u4e2a\u5904\u7406\u8005\u7684\u5f15\u7528\uff0c\u5e76\u53ef\u4ee5\u9009\u62e9\u5904\u7406\u8bf7\u6c42\u6216\u5c06\u5176\u4f20\u9012\u7ed9\u4e0b\u4e00\u4e2a\u5904\u7406\u8005\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u9002\u7528\u573a\u666f<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9700\u8981\u591a\u4e2a\u5bf9\u8c61\u5904\u7406\u540c\u4e00\u8bf7\u6c42\uff0c\u4f46\u4e0d\u5e0c\u671b\u660e\u786e\u6307\u5b9a\u5177\u4f53\u5904\u7406\u8005\u3002<\/li>\n\n\n\n<li>\u5904\u7406\u8005\u9700\u8981\u7075\u6d3b\u7ec4\u5408\uff0c\u652f\u6301\u52a8\u6001\u6dfb\u52a0\u6216\u79fb\u9664\u3002<\/li>\n\n\n\n<li>\u9700\u8981\u907f\u514d\u8bf7\u6c42\u7684\u53d1\u9001\u8005\u548c\u63a5\u6536\u8005\u4e4b\u95f4\u7684\u8026\u5408\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u7ed3\u6784<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d23\u4efb\u94fe\u6a21\u5f0f\u4e3b\u8981\u7531\u4ee5\u4e0b\u89d2\u8272\u7ec4\u6210\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u62bd\u8c61\u5904\u7406\u8005\uff08Handler\uff09<\/strong>\uff1a\u5b9a\u4e49\u5904\u7406\u8bf7\u6c42\u7684\u63a5\u53e3\uff0c\u5e76\u6301\u6709\u4e0b\u4e00\u4e2a\u5904\u7406\u8005\u7684\u5f15\u7528\u3002<\/li>\n\n\n\n<li><strong>\u5177\u4f53\u5904\u7406\u8005\uff08Concrete Handler\uff09<\/strong>\uff1a\u5b9e\u73b0\u62bd\u8c61\u5904\u7406\u8005\u63a5\u53e3\uff0c\u51b3\u5b9a\u662f\u5426\u5904\u7406\u8bf7\u6c42\uff0c\u5982\u679c\u4e0d\u5904\u7406\u5219\u4f20\u9012\u7ed9\u4e0b\u4e00\u4e2a\u5904\u7406\u8005\u3002<\/li>\n\n\n\n<li><strong>\u5ba2\u6237\u7aef\uff08Client\uff09<\/strong>\uff1a\u521b\u5efa\u8bf7\u6c42\u5e76\u53d1\u9001\u5230\u5904\u7406\u94fe\u7684\u8d77\u70b9\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u793a\u4f8b\u4ee3\u7801\uff08Java \u5b9e\u73b0\uff09<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u62bd\u8c61\u5904\u7406\u8005\nabstract class Handler {\n    protected Handler nextHandler; \/\/ \u4e0b\u4e00\u4e2a\u5904\u7406\u8005\n\n    public void setNextHandler(Handler nextHandler) {\n        this.nextHandler = nextHandler;\n    }\n\n    public abstract void handleRequest(int request);\n}\n\n\/\/ \u5177\u4f53\u5904\u7406\u8005A\nclass ConcreteHandlerA extends Handler {\n    @Override\n    public void handleRequest(int request) {\n        if (request &lt; 10) {\n            System.out.println(\"HandlerA \u5904\u7406\u4e86\u8bf7\u6c42\uff1a\" + request);\n        } else if (nextHandler != null) {\n            nextHandler.handleRequest(request);\n        }\n    }\n}\n\n\/\/ \u5177\u4f53\u5904\u7406\u8005B\nclass ConcreteHandlerB extends Handler {\n    @Override\n    public void handleRequest(int request) {\n        if (request &lt; 20) {\n            System.out.println(\"HandlerB \u5904\u7406\u4e86\u8bf7\u6c42\uff1a\" + request);\n        } else if (nextHandler != null) {\n            nextHandler.handleRequest(request);\n        }\n    }\n}\n\n\/\/ \u5177\u4f53\u5904\u7406\u8005C\nclass ConcreteHandlerC extends Handler {\n    @Override\n    public void handleRequest(int request) {\n        if (request &gt;= 20) {\n            System.out.println(\"HandlerC \u5904\u7406\u4e86\u8bf7\u6c42\uff1a\" + request);\n        }\n    }\n}\n\n\/\/ \u6d4b\u8bd5\u4ee3\u7801\npublic class ChainOfResponsibilityDemo {\n    public static void main(String&#91;] args) {\n        Handler handlerA = new ConcreteHandlerA();\n        Handler handlerB = new ConcreteHandlerB();\n        Handler handlerC = new ConcreteHandlerC();\n\n        \/\/ \u6784\u5efa\u8d23\u4efb\u94fe\uff1aA -&gt; B -&gt; C\n        handlerA.setNextHandler(handlerB);\n        handlerB.setNextHandler(handlerC);\n\n        \/\/ \u53d1\u9001\u4e0d\u540c\u8bf7\u6c42\n        int&#91;] requests = {5, 15, 25};\n        for (int req : requests) {\n            handlerA.handleRequest(req);\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">5. \u8fd0\u884c\u7ed3\u679c\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>HandlerA \u5904\u7406\u4e86\u8bf7\u6c42\uff1a5\nHandlerB \u5904\u7406\u4e86\u8bf7\u6c42\uff1a15\nHandlerC \u5904\u7406\u4e86\u8bf7\u6c42\uff1a25\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">6. \u8d23\u4efb\u94fe\u6a21\u5f0f\u7684\u4f18\u7f3a\u70b9<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u964d\u4f4e\u8026\u5408\u5ea6\uff0c\u53d1\u9001\u8005\u548c\u63a5\u6536\u8005\u89e3\u8026\u3002<\/li>\n\n\n\n<li>\u7b26\u5408\u5f00\u95ed\u539f\u5219\uff0c\u53ef\u4ee5\u52a8\u6001\u6dfb\u52a0\u65b0\u7684\u5904\u7406\u8005\u3002<\/li>\n\n\n\n<li>\u589e\u5f3a\u7cfb\u7edf\u7684\u7075\u6d3b\u6027\uff0c\u53ef\u52a8\u6001\u6539\u53d8\u8d23\u4efb\u94fe\u7ed3\u6784\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u53ef\u80fd\u4f1a\u904d\u5386\u6574\u4e2a\u8d23\u4efb\u94fe\uff0c\u5f71\u54cd\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u8d23\u4efb\u94fe\u8fc7\u957f\u53ef\u80fd\u5bfc\u81f4\u8c03\u8bd5\u56f0\u96be\u3002<\/li>\n\n\n\n<li>\u53ef\u80fd\u5bfc\u81f4\u90e8\u5206\u8bf7\u6c42\u672a\u88ab\u5904\u7406\uff08\u5982\u679c\u6ca1\u6709\u9ed8\u8ba4\u5904\u7406\u8005\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">7. \u8d23\u4efb\u94fe\u6a21\u5f0f\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u7684\u5e94\u7528<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65e5\u5fd7\u5904\u7406<\/strong>\uff08\u4e0d\u540c\u7ea7\u522b\u7684\u65e5\u5fd7\u8fc7\u6ee4\uff0c\u5982 INFO\u3001WARN\u3001ERROR\uff09<\/li>\n\n\n\n<li><strong>\u6743\u9650\u63a7\u5236<\/strong>\uff08\u4e0d\u540c\u5c42\u7ea7\u7684\u6743\u9650\u8ba4\u8bc1\uff09<\/li>\n\n\n\n<li><strong>\u5ba1\u6279\u6d41\u7a0b<\/strong>\uff08\u5982\u8bf7\u5047\u5ba1\u6279\uff0c\u5148\u90e8\u95e8\u4e3b\u7ba1\u5ba1\u6279\uff0c\u518d HR \u5ba1\u6279\uff09<\/li>\n\n\n\n<li><strong>\u4e2d\u95f4\u4ef6\u8bbe\u8ba1<\/strong>\uff08\u5982 Servlet \u8fc7\u6ee4\u5668\u3001Spring \u62e6\u622a\u5668\uff09<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u8d23\u4efb\u94fe\u6a21\u5f0f\uff08Chain of Responsibility Pattern\uff09 1. \u6982\u5ff5 \u8d23\u4efb\u94fe\u6a21\u5f0f\u662f\u4e00\u79cd\u884c\u4e3a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-727","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/comments?post=727"}],"version-history":[{"count":2,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/727\/revisions"}],"predecessor-version":[{"id":804,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/727\/revisions\/804"}],"wp:attachment":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/media?parent=727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/categories?post=727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/tags?post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}