{"id":38484,"date":"2023-12-11T14:44:35","date_gmt":"2023-12-11T06:44:35","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=38484"},"modified":"2023-12-11T14:44:35","modified_gmt":"2023-12-11T06:44:35","slug":"%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8b-%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e5%8a%a8%e6%80%81%e4%bb%a3%e7%90%86%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8b-%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e5%8a%a8%e6%80%81%e4%bb%a3%e7%90%86%ef%bc%9f\/","title":{"rendered":"\u4ecb\u7ecd\u4e00\u4e0b \u5982\u4f55\u5b9e\u73b0\u52a8\u6001\u4ee3\u7406\uff1f"},"content":{"rendered":"<p>&#8220;`&#8221;                    \u8003\u5bdf\u70b9\uff1a\u52a8\u6001\u4ee3\u7406\u6d41\u7a0b<\/p>\n<p>Java\u5b9e\u73b0\u52a8\u6001\u4ee3\u7406\u7684\u5927\u81f4\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<p>1.\u5b9a\u4e49\u4e00\u4e2a\u59d4\u6258\u7c7b\u548c\u516c\u5171\u63a5\u53e3\u3002<\/p>\n<p>2.\u81ea\u5df1\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff08\u8c03\u7528\u5904\u7406\u5668\u7c7b\uff0c\u5373\u5b9e\u73b0 InvocationHandler \u63a5\u53e3\uff09\uff0c\u8fd9\u4e2a\u7c7b\u7684\u76ee\u7684\u662f\u6307\u5b9a\u8fd0\u884c\u65f6\u5c06\u751f\u6210\u7684\u4ee3\u7406\u7c7b\u9700\u8981\u5b8c\u6210\u7684\u5177\u4f53\u4efb\u52a1\uff08\u5305\u62ecPreprocess\u548cPostprocess\uff09\uff0c\u5373\u4ee3\u7406\u7c7b\u8c03\u7528\u4efb\u4f55\u65b9\u6cd5\u90fd\u4f1a\u7ecf\u8fc7\u8fd9\u4e2a\u8c03\u7528\u5904\u7406\u5668\u7c7b\uff08\u5728\u672c\u6587\u6700\u540e\u4e00\u8282\u5bf9\u6b64\u8fdb\u884c\u89e3\u91ca\uff09\u3002<\/p>\n<p>3.\u751f\u6210\u4ee3\u7406\u5bf9\u8c61\uff08\u5f53\u7136\u4e5f\u4f1a\u751f\u6210\u4ee3\u7406\u7c7b\uff09\uff0c\u9700\u8981\u4e3a\u4ed6\u6307\u5b9a(1)\u59d4\u6258\u5bf9\u8c61(2)\u5b9e\u73b0\u7684\u4e00\u7cfb\u5217\u63a5\u53e3(3)\u8c03\u7528\u5904\u7406\u5668\u7c7b\u7684\u5b9e\u4f8b\u3002\u56e0\u6b64\u53ef\u4ee5\u770b\u51fa\u4e00\u4e2a\u4ee3\u7406\u5bf9\u8c61\u5bf9\u5e94\u4e00\u4e2a\u59d4\u6258\u5bf9\u8c61\uff0c\u5bf9\u5e94\u4e00\u4e2a\u8c03\u7528\u5904\u7406\u5668\u5b9e\u4f8b\u3002<\/p>\n<p>4.Java \u5b9e\u73b0\u52a8\u6001\u4ee3\u7406\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u7c7b\uff1a<\/p>\n<p>\u2460java.lang.reflect.Proxy: \u8fd9\u662f\u751f\u6210\u4ee3\u7406\u7c7b\u7684\u4e3b\u7c7b\uff0c\u901a\u8fc7 Proxy \u7c7b\u751f\u6210\u7684\u4ee3\u7406\u7c7b\u90fd\u7ee7\u627f\u4e86 Proxy \u7c7b\uff0c\u5373 DynamicProxyClass extends Proxy\u3002<\/p>\n<p>\u2461java.lang.reflect.InvocationHandler: \u8fd9\u91cc\u79f0\u4ed6\u4e3a&#8221;&#8221;\u8c03\u7528\u5904\u7406\u5668&#8221;&#8221;\uff0c\u4ed6\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u6211\u4eec\u52a8\u6001\u751f\u6210\u7684\u4ee3\u7406\u7c7b\u9700\u8981\u5b8c\u6210\u7684\u5177\u4f53\u5185\u5bb9\u9700\u8981\u81ea\u5df1\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u800c\u8fd9\u4e2a\u7c7b\u5fc5\u987b\u5b9e\u73b0 InvocationHandler \u63a5\u53e3\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>`public` `final` `class` `<span class=\"katex math inline\">Proxy1 ``extends` `Proxy ``implements` `Subject{``private` `InvocationHandler h;``private` `<\/span>Proxy1(){}``public` `$Proxy1(InvocationHandler h){``this``.h = h; }``public` `int` `request(``int` `i){``Method method = Subject.``class``.getMethod(``\"\"request\"\"``, ``new` `Class[]{``int``.``class``}); ``\/\/\u521b\u5efamethod\u5bf9\u8c61``return` `(Integer)h.invoke(``this``, method, ``new` `Object[]{``new` `Integer(i)}); ``\/\/\u8c03\u7528\u4e86invoke\u65b9\u6cd5 } }`\n<\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre><code>            \"```\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;`&#8221; \u8003\u5bdf\u70b9\uff1a\u52a8\u6001\u4ee3\u7406\u6d41\u7a0b Java\u5b9e\u73b0\u52a8\u6001\u4ee3\u7406\u7684\u5927\u81f4\u6b65\u9aa4\u5982\u4e0b\uff1a 1.\u5b9a\u4e49\u4e00\u4e2a\u59d4\u6258\u7c7b [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-38484","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=38484"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38484\/revisions"}],"predecessor-version":[{"id":38485,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38484\/revisions\/38485"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=38484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=38484"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=38484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}