{"id":10006204,"date":"2022-08-15T10:43:54","date_gmt":"2022-08-15T02:43:54","guid":{"rendered":"https:\/\/ityet.com\/?p=10006204"},"modified":"2022-08-15T10:43:54","modified_gmt":"2022-08-15T02:43:54","slug":"%e9%95%bf%e7%af%87%e5%9b%be%e8%a7%a3java%e5%8f%8d%e5%b0%84%e6%9c%ba%e5%88%b6%e5%8f%8a%e5%85%b6%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006204","title":{"rendered":"\u957f\u7bc7\u56fe\u89e3java\u53cd\u5c04\u673a\u5236\u53ca\u5176\u5e94\u7528\u573a\u666f"},"content":{"rendered":"<h2>\u4e00\u3001\u4ec0\u4e48\u662fjava\u53cd\u5c04\uff1f<\/h2>\n<p>\u5728java\u7684\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8fc7\u7a0b\u4e2d\uff0c\u901a\u5e38\u6211\u4eec\u9700\u8981\u5148\u77e5\u9053\u4e00\u4e2aClass\u7c7b\uff0c\u7136\u540e<code>new \u7c7b\u540d()<\/code>\u65b9\u5f0f\u6765\u83b7\u53d6\u8be5\u7c7b\u7684\u5bf9\u8c61\u3002\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u9700\u8981\u5728\u5199\u4ee3\u7801\u7684\u65f6\u5019\uff08\u7f16\u8bd1\u671f\u6216\u8005\u7f16\u8bd1\u671f\u4e4b\u524d\uff09\u5c31\u77e5\u9053\u6211\u4eec\u8981\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\uff0c\u8fd0\u884c\u54ea\u4e00\u4e2a\u65b9\u6cd5\uff0c\u8fd9\u79cd\u901a\u5e38\u88ab\u79f0\u4e3a<strong>\u9759\u6001\u7684\u7c7b\u52a0\u8f7d<\/strong>\u3002<\/p>\n<p>\u4f46\u662f\u5728\u6709\u4e9b\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u4e8b\u5148\u662f\u4e0d\u77e5\u9053\u6211\u4eec\u7684\u4ee3\u7801\u7684\u5177\u4f53\u884c\u4e3a\u7684\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u670d\u52a1\u4efb\u52a1\u5de5\u4f5c\u6d41\uff0c\u6bcf\u4e00\u4e2a\u670d\u52a1\u4efb\u52a1\u90fd\u662f\u5bf9\u5e94\u7684\u4e00\u4e2a\u7c7b\u7684\u4e00\u4e2a\u65b9\u6cd5\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042318594\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ul>\n<li>\u670d\u52a1\u4efb\u52a1B\u6267\u884c\u54ea\u4e00\u4e2a\u7c7b\u7684\u54ea\u4e00\u4e2a\u65b9\u6cd5\uff0c\u662f\u7531\u670d\u52a1\u4efb\u52a1A\u7684\u6267\u884c\u7ed3\u679c\u51b3\u5b9a\u7684<\/li>\n<li>\u670d\u52a1\u4efb\u52a1C\u6267\u884c\u54ea\u4e00\u4e2a\u7c7b\u7684\u54ea\u4e00\u4e2a\u65b9\u6cd5\uff0c\u662f\u7531\u670d\u52a1\u4efb\u52a1A\u548cB\u7684\u6267\u884c\u7ed3\u679c\u51b3\u5b9a\u7684<\/li>\n<li>\u5e76\u4e14\u7528\u6237\u4e0d\u5e0c\u671b\u670d\u52a1\u4efb\u52a1\u7684\u529f\u80fd\u5728\u4ee3\u7801\u4e2d\u5199\u6b7b\uff0c\u5e0c\u671b\u901a\u8fc7\u914d\u7f6e\u7684\u65b9\u5f0f\u6267\u884c\u4e0d\u540c\u7684\u7a0b\u5e8f<\/li>\n<\/ul>\n<p>\u9762\u5bf9\u8fd9\u4e2a\u60c5\u51b5\uff0c\u6211\u4eec\u5c31\u4e0d\u80fd\u7528\u4ee3\u7801<code>new \u7c7b\u540d()<\/code>\u6765\u5b9e\u73b0\u4e86\uff0c\u56e0\u4e3a\u4f60\u4e0d\u77e5\u9053\u7528\u6237\u5177\u4f53\u8981\u600e\u4e48\u505a\u914d\u7f6e\uff0c\u8fd9\u4e00\u79d2\u4ed6\u5e0c\u671b\u670d\u52a1\u4efb\u52a1A\u6267\u884cXxxx\u7c7b\u7684x\u65b9\u6cd5\uff0c\u4e0b\u4e00\u79d2\u4ed6\u53ef\u80fd\u5e0c\u671b\u6267\u884cYyyy\u7c7b\u7684y\u65b9\u6cd5\u3002\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u8bf4\u63d0\u9700\u6c42\u561b\uff0c\u7528\u6237\u6539\u4e00\u6b21\u9700\u6c42\uff0c\u6211\u6539\u4e00\u6b21\u4ee3\u7801\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e5f\u80fd\u9700\u6c42\uff0c\u4f46\u5bf9\u4e8e\u7528\u6237\u548c\u7a0b\u5e8f\u5458\u4e2a\u4eba\u800c\u8a00\u90fd\u662f\u75db\u82e6\uff0c\u90a3\u4e48\u6709\u6ca1\u6709\u4e00\u79cd\u65b9\u6cd5<strong>\u5728\u8fd0\u884c\u671f\u52a8\u6001\u7684\u6539\u53d8\u7a0b\u5e8f\u7684\u8c03\u7528\u884c\u4e3a\u7684\u65b9\u6cd5<\/strong>\u5462\uff1f\u8fd9\u5c31\u662f\u8981\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u7684\u201c<strong>java\u53cd\u5c04\u673a\u5236<\/strong>\u201d\u3002<\/p>\n<p>\u90a3\u4e48java\u7684\u53cd\u5c04\u673a\u5236\u80fd\u591f\u505a\u90a3\u4e9b\u4e8b\u5462\uff1f\u5927\u6982\u662f\u8fd9\u6837\u51e0\u79cd\uff1a<\/p>\n<ul>\n<li>\u5728\u7a0b\u5e8f\u8fd0\u884c\u671f\u52a8\u6001\u7684\u6839\u636e<code>package\u540d.\u7c7b\u540d<\/code>\u5b9e\u4f8b\u5316\u7c7b\u5bf9\u8c61<\/li>\n<li>\u5728\u7a0b\u5e8f\u8fd0\u884c\u671f\u52a8\u6001\u83b7\u53d6\u7c7b\u5bf9\u8c61\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u5bf9\u8c61\u7684\u6210\u672c\u53d8\u91cf\u548c\u65b9\u6cd5<\/li>\n<li>\u5728\u7a0b\u5e8f\u8fd0\u884c\u671f\u52a8\u6001\u4f7f\u7528\u5bf9\u8c61\u7684\u6210\u5458\u53d8\u91cf\u5c5e\u6027<\/li>\n<li>\u5728\u7a0b\u5e8f\u8fd0\u884c\u671f\u52a8\u6001\u8c03\u7528\u5bf9\u8c61\u7684\u65b9\u6cd5\uff08\u79c1\u6709\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u8c03\u7528\uff09<\/li>\n<\/ul>\n<h2>\u4e8c\u3001Hello World<\/h2>\n<p>\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u53eb\u505aStudent<\/p>\n<pre><code class=\"java\">package com.zimug.java.reflection;\n\npublic class Student {\n    public String nickName;\n    private Integer age;\n\n    public void dinner(){\n        System.out.println(&quot;\u5403\u665a\u9910\uff01&quot;);\n    }\n\n    private void sleep(int minutes){\n        System.out.println(&quot;\u7761&quot; + minutes + &quot;\u5206\u949f&quot;);\n    }\n}<\/code><\/pre>\n<p>\u5982\u679c\u4e0d\u7528\u53cd\u5c04\u7684\u65b9\u5f0f\uff0c\u6211\u76f8\u4fe1\u53ea\u8981\u5b66\u8fc7java\u7684\u670b\u53cb\u80af\u5b9a\u4f1a\u8c03\u7528dinner\u65b9\u6cd5<\/p>\n<pre><code class=\"java\">Student student = new Student();\nstudent.dinner();<\/code><\/pre>\n<p>\u5982\u679c\u662f\u53cd\u5c04\u7684\u65b9\u5f0f\u6211\u4eec\u8be5\u600e\u4e48\u8c03\u7528\u5462\uff1f<\/p>\n<pre><code class=\"java\">\/\/\u83b7\u53d6Student\u7c7b\u4fe1\u606f\nClass cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\/\/\u5bf9\u8c61\u5b9e\u4f8b\u5316\nObject obj = cls.getDeclaredConstructor().newInstance();\n\/\/\u6839\u636e\u65b9\u6cd5\u540d\u83b7\u53d6\u5e76\u6267\u884c\u65b9\u6cd5\nMethod dinnerMethod = cls.getDeclaredMethod(&quot;dinner&quot;);\ndinnerMethod.invoke(obj);  \/\/\u6253\u5370\uff1a\u5403\u665a\u9910\uff01<\/code><\/pre>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\u6211\u4eec\u770b\u5230\uff0ccom.zimug.java.reflection.Student\u7c7b\u540d\u548cdinner\u65b9\u6cd5\u540d\u662f\u5b57\u7b26\u4e32\u3002\u65e2\u7136\u662f\u5b57\u7b26\u4e32\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\uff0c\u6216\u6570\u636e\u5e93\u3001\u6216\u4ec0\u4e48\u5176\u4ed6\u7684\u7075\u6d3b\u914d\u7f6e\u65b9\u6cd5\u6765\u6267\u884c\u8fd9\u6bb5\u7a0b\u5e8f\u4e86\u3002\u8fd9\u5c31\u662f\u53cd\u5c04\u6700\u57fa\u7840\u7684\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n<h2>\u4e09\u3001\u7c7b\u52a0\u8f7d\u4e0e\u53cd\u5c04\u5173\u7cfb<\/h2>\n<p>java\u7684\u7c7b\u52a0\u8f7d\u673a\u5236\u8fd8\u662f\u633a\u590d\u6742\u7684\uff0c\u6211\u4eec\u8fd9\u91cc\u4e3a\u4e86\u4e0d\u6df7\u6dc6\u91cd\u70b9\uff0c\u53ea\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u548c\u201c\u53cd\u5c04\u201d\u6709\u5173\u7cfb\u7684\u4e00\u90e8\u5206\u5185\u5bb9\u3002<\/p>\n<p>java\u6267\u884c\u7f16\u8bd1\u7684\u65f6\u5019\u5c06java\u6587\u4ef6\u7f16\u8bd1\u6210\u5b57\u8282\u7801class\u6587\u4ef6,\u7c7b\u52a0\u8f7d\u5668\u5728\u7c7b\u52a0\u8f7d\u9636\u6bb5\u5c06class\u6587\u4ef6\u52a0\u8f7d\u5230\u5185\u5b58\uff0c\u5e76\u5b9e\u4f8b\u5316\u4e00\u4e2ajava.lang.Class\u7684\u5bf9\u8c61\u3002\u6bd4\u5982\uff1a\u5bf9\u4e8eStudent\u7c7b\u5728\u52a0\u8f7d\u9636\u6bb5<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042318595\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ul>\n<li>\u5728\u5185\u5b58(\u65b9\u6cd5\u533a\u6216\u53eb\u4ee3\u7801\u533a)\u4e2d\u5b9e\u4f8b\u5316\u4e00\u4e2aClass\u5bf9\u8c61\uff0c\u6ce8\u610f\u662fClass\u5bf9\u8c61\u4e0d\u662fStudent\u5bf9\u8c61<\/li>\n<li>\u4e00\u4e2aClass\u7c7b\uff08\u5b57\u8282\u7801\u6587\u4ef6\uff09\u5bf9\u5e94\u4e00\u4e2aClass\u5bf9\u8c61<\/li>\n<li>\u8be5Class\u5bf9\u8c61\u4fdd\u5b58\u4e86Student\u7c7b\u7684\u57fa\u7840\u4fe1\u606f\uff0c\u6bd4\u5982\u8fd9\u4e2aStudent\u7c7b\u6709\u51e0\u4e2a\u5b57\u6bb5\uff08Filed\uff09\uff1f\u6709\u51e0\u4e2a\u6784\u9020\u65b9\u6cd5\uff08Constructor\uff09\uff1f\u6709\u51e0\u4e2a\u65b9\u6cd5\uff08Method\uff09\uff1f\u6709\u54ea\u4e9b\u6ce8\u89e3\uff08Annotation\uff09\uff1f\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u6709\u4e86\u4e0a\u9762\u7684\u5173\u4e8eStudent\u7c7b\u7684\u57fa\u672c\u4fe1\u606f\u5bf9\u8c61\uff08java.lang.Class\u5bf9\u8c61\uff09,\u5728\u8fd0\u884c\u671f\u5c31\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u6765\u5b9e\u4f8b\u5316Student\u7c7b\u7684\u5bf9\u8c61\u3002<\/p>\n<ul>\n<li>\u5728\u8fd0\u884c\u671f\u4f60\u53ef\u4ee5\u76f4\u63a5new\u4e00\u4e2aStudent\u5bf9\u8c61<\/li>\n<li>\u4e5f\u53ef\u4ee5\u4f7f\u7528\u53cd\u5c04\u7684\u65b9\u6cd5\u6784\u9020\u4e00\u4e2aStudent\u5bf9\u8c61<\/li>\n<\/ul>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042318596\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4f46\u662f\u65e0\u8bba\u4f60new\u591a\u5c11\u4e2aStudent\u5bf9\u8c61\uff0c\u4e0d\u8bba\u4f60\u53cd\u5c04\u6784\u5efa\u591a\u5c11\u4e2aStudent\u5bf9\u8c61\uff0c\u4fdd\u5b58Student\u7c7b\u4fe1\u606f\u7684java.lang.Class\u5bf9\u8c61\u90fd\u53ea\u6709\u4e00\u4e2a\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u53ef\u4ee5\u8bc1\u660e\u3002<\/p>\n<pre><code class=\"java\">Class cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\nClass cls2 = new Student().getClass();\n\nSystem.out.println(cls == cls2); \/\/\u6bd4\u8f83Class\u5bf9\u8c61\u7684\u5730\u5740\uff0c\u8f93\u51fa\u7ed3\u679c\u662ftrue<\/code><\/pre>\n<h2>\u56db\u3001\u64cd\u4f5c\u53cd\u5c04\u7684java\u7c7b<\/h2>\n<p>\u4e86\u89e3\u4e86\u4e0a\u9762\u7684\u8fd9\u4e9b\u57fa\u7840\u4fe1\u606f\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u66f4\u6df1\u5165\u5b66\u4e60\u53cd\u5c04\u7c7b\u76f8\u5173\u7684\u7c7b\u548c\u65b9\u6cd5\u4e86\uff1a<\/p>\n<ul>\n<li>java.lang.Class:  \u4ee3\u8868\u4e00\u4e2a\u7c7b<\/li>\n<li>java.lang.reflect.Constructor: \u4ee3\u8868\u7c7b\u7684\u6784\u9020\u65b9\u6cd5<\/li>\n<li>java.lang.reflect.Method: \u4ee3\u8868\u7c7b\u7684\u666e\u901a\u65b9\u6cd5<\/li>\n<li>java.lang.reflect.Field: \u4ee3\u8868\u7c7b\u7684\u6210\u5458\u53d8\u91cf<\/li>\n<li>Java.lang.reflect.Modifier:  \u4fee\u9970\u7b26\uff0c\u65b9\u6cd5\u7684\u4fee\u9970\u7b26\uff0c\u6210\u5458\u53d8\u91cf\u7684\u4fee\u9970\u7b26\u3002<\/li>\n<li>java.lang.annotation.Annotation\uff1a\u5728\u7c7b\u3001\u6210\u5458\u53d8\u91cf\u3001\u6784\u9020\u65b9\u6cd5\u3001\u666e\u901a\u65b9\u6cd5\u4e0a\u90fd\u53ef\u4ee5\u52a0\u6ce8\u89e3<\/li>\n<\/ul>\n<h3>4.1.\u83b7\u53d6Class\u5bf9\u8c61\u7684\u4e09\u79cd\u65b9\u6cd5<\/h3>\n<h4><strong><code>Class.forName()<\/code>\u65b9\u6cd5\u83b7\u53d6Class\u5bf9\u8c61<\/strong><\/h4>\n<pre><code class=\"java\">\/**\n* Class.forName\u65b9\u6cd5\u83b7\u53d6Class\u5bf9\u8c61\uff0c\u8fd9\u4e5f\u662f\u53cd\u5c04\u4e2d\u6700\u5e38\u7528\u7684\u83b7\u53d6\u5bf9\u8c61\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b57\u7b26\u4e32\u4f20\u53c2\u589e\u5f3a\u4e86\u914d\u7f6e\u5b9e\u73b0\u7684\u7075\u6d3b\u6027\n*\/\nClass cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);<\/code><\/pre>\n<h4><strong><code>\u7c7b\u540d.class<\/code>\u83b7\u53d6Class\u5bf9\u8c61<\/strong><\/h4>\n<pre><code class=\"java\">\/**\n* `\u7c7b\u540d.class`\u7684\u65b9\u5f0f\u83b7\u53d6Class\u5bf9\u8c61\n*\/\nClass clz = User.class;<\/code><\/pre>\n<h4><strong><code>\u7c7b\u5bf9\u8c61.getClass()<\/code>\u65b9\u5f0f\u83b7\u53d6Class\u5bf9\u8c61<\/strong><\/h4>\n<pre><code class=\"java\">\/**\n* `\u7c7b\u5bf9\u8c61.getClass()`\u65b9\u5f0f\u83b7\u53d6Class\u5bf9\u8c61\n*\/\nUser user = new User();\nClass clazz = user.getClass();<\/code><\/pre>\n<p>\u867d\u7136\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u67d0\u4e2a\u7c7b\u7684Class\u5bf9\u8c61\uff0c\u4f46\u662f\u53ea\u6709\u7b2c\u4e00\u79cd\u53ef\u4ee5\u88ab\u79f0\u4e3a\u201c\u53cd\u5c04\u201d\u3002<\/p>\n<h3>4.2.\u83b7\u53d6Class\u7c7b\u5bf9\u8c61\u7684\u57fa\u672c\u4fe1\u606f<\/h3>\n<pre><code class=\"java\">Class cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\n\/\/\u83b7\u53d6\u7c7b\u7684\u5305\u540d+\u7c7b\u540d\nSystem.out.println(cls.getName());          \/\/com.zimug.java.reflection.Student\n\/\/\u83b7\u53d6\u7c7b\u7684\u7236\u7c7b\nClass cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\/\/\u8fd9\u4e2a\u7c7b\u578b\u662f\u4e0d\u662f\u4e00\u4e2a\u6ce8\u89e3\uff1f\nSystem.out.println(cls.isAnnotation());     \/\/false\n\/\/\u8fd9\u4e2a\u7c7b\u578b\u662f\u4e0d\u662f\u4e00\u4e2a\u679a\u4e3e\uff1f\nSystem.out.println(cls.isEnum());      \/\/false\n\/\/\u8fd9\u4e2a\u7c7b\u578b\u662f\u4e0d\u662f\u57fa\u7840\u6570\u636e\u7c7b\u578b\uff1f\nSystem.out.println(cls.isPrimitive()); \/\/false<\/code><\/pre>\n<p>Class\u7c7b\u5bf9\u8c61\u4fe1\u606f\u4e2d\u51e0\u4e4e\u5305\u62ec\u4e86\u6240\u6709\u7684\u4f60\u60f3\u77e5\u9053\u7684\u5173\u4e8e\u8fd9\u4e2a\u7c7b\u578b\u5b9a\u4e49\u7684\u4fe1\u606f\uff0c\u66f4\u591a\u7684\u65b9\u6cd5\u5c31\u4e0d\u4e00\u4e00\u5217\u4e3e\u4e86\u3002\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u65b9\u6cd5<\/p>\n<ul>\n<li>\u83b7\u53d6Class\u7c7b\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u5b9e\u73b0\u4e86\u54ea\u4e9b\u63a5\u53e3\uff1a getInterfaces()<\/li>\n<li>\u83b7\u53d6Class\u7c7b\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u4f7f\u7528\u4e86\u54ea\u4e9b\u6ce8\u89e3\uff1a getAnnotations()<\/li>\n<\/ul>\n<h3>4.3. \u83b7\u5f97Class\u5bf9\u8c61\u7684\u6210\u5458\u53d8\u91cf<\/h3>\n<p>\u7ed3\u5408\u4e0a\u6587\u4e2d\u7684Student\u7c7b\u7684\u5b9a\u4e49\u7406\u89e3\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n<pre><code>Class cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\nField[] fields = cls.getFields();\nfor (Field field : fields) {\nSystem.out.println(field.getName());      \/\/nickName\n}\n\nfields = cls.getDeclaredFields();\nfor (Field field : fields) {\nSystem.out.println(field.getName());      \/\/nickName \u6362\u884c  age\n}<\/code><\/pre>\n<ul>\n<li>getFields()\u65b9\u6cd5\u83b7\u53d6\u7c7b\u7684\u975e\u79c1\u6709\u7684\u6210\u5458\u53d8\u91cf\uff0c\u6570\u7ec4\uff0c\u5305\u542b\u4ece\u7236\u7c7b\u7ee7\u627f\u7684\u6210\u5458\u53d8\u91cf<\/li>\n<li>getDeclaredFields\u65b9\u6cd5\u83b7\u53d6\u6240\u6709\u7684\u6210\u5458\u53d8\u91cf\uff0c\u6570\u7ec4\uff0c\u4f46\u662f\u4e0d\u5305\u542b\u4ece\u7236\u7c7b\u7ee7\u627f\u800c\u6765\u7684\u6210\u5458\u53d8\u91cf<\/li>\n<\/ul>\n<h3>4.4.\u83b7\u53d6Class\u5bf9\u8c61\u7684\u65b9\u6cd5<\/h3>\n<ul>\n<li>getMethods() :  \u83b7\u53d6Class\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u7684\u6240\u6709\u7684\u975e\u79c1\u6709\u65b9\u6cd5\uff0c\u6570\u7ec4\uff0c<strong>\u5305\u542b\u4ece\u7236\u7c7b\u7ee7\u627f\u800c\u6765\u7684\u65b9\u6cd5<\/strong><\/li>\n<li>getDeclaredMethods() :  \u83b7\u53d6Class\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u5b9a\u4e49\u7684\u6240\u6709\u7684\u65b9\u6cd5\uff0c\u6570\u7ec4\uff0c<strong>\u4f46\u662f\u4e0d\u5305\u542b\u4ece\u7236\u7c7b\u7ee7\u627f\u800c\u6765\u7684\u65b9\u6cd5<\/strong><\/li>\n<li>getMethod(methodName): \u83b7\u53d6Class\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u7684\u6307\u5b9a\u65b9\u6cd5\u540d\u7684\u975e\u79c1\u6709\u65b9\u6cd5<\/li>\n<li>getDeclaredMethod(methodName): \u83b7\u53d6Class\u5bf9\u8c61\u4ee3\u8868\u7684\u7c7b\u7684\u6307\u5b9a\u65b9\u6cd5\u540d\u7684\u65b9\u6cd5<\/li>\n<\/ul>\n<pre><code class=\"java\">        Class cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\n        Method[] methods = cls.getMethods();\n        System.out.println(&quot;Student\u5bf9\u8c61\u7684\u975e\u79c1\u6709\u65b9\u6cd5&quot;);\n        for (Method m : methods) {\n            System.out.print(m.getName() + &quot;,&quot;);\n        }\n        System.out.println(&quot;  end&quot;);\n\n\n        Method[] allMethods = cls.getDeclaredMethods();\n        System.out.println(&quot;Student\u5bf9\u8c61\u7684\u6240\u6709\u65b9\u6cd5&quot;);\n        for (Method m : allMethods) {\n            System.out.print(m.getName() + &quot;,&quot;);\n        }\n        System.out.println(&quot;  end&quot;);\n\n\n        Method dinnerMethod = cls.getMethod(&quot;dinner&quot;);\n        System.out.println(&quot;dinner\u65b9\u6cd5\u7684\u53c2\u6570\u4e2a\u6570&quot; + dinnerMethod.getParameterCount());\n\n        Method sleepMethod = cls.getDeclaredMethod(&quot;sleep&quot;,int.class);\n        System.out.println(&quot;sleep\u65b9\u6cd5\u7684\u53c2\u6570\u4e2a\u6570&quot; + sleepMethod.getParameterCount());\n        System.out.println(&quot;sleep\u65b9\u6cd5\u7684\u53c2\u6570\u5bf9\u8c61\u6570\u7ec4&quot; + Arrays.toString(sleepMethod.getParameters()));\n        System.out.println(&quot;sleep\u65b9\u6cd5\u7684\u53c2\u6570\u8fd4\u56de\u503c\u7c7b\u578b&quot; + sleepMethod.getReturnType());<\/code><\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u7684\u6267\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<pre><code>Student\u5bf9\u8c61\u7684\u975e\u79c1\u6709\u65b9\u6cd5\ndinner,wait,wait,wait,equals,toString,hashCode,getClass,notify,notifyAll,  end\n\nStudent\u5bf9\u8c61\u7684\u6240\u6709\u65b9\u6cd5\ndinner,sleep,  end\n\ndinner\u65b9\u6cd5\u7684\u53c2\u6570\u4e2a\u65700\nsleep\u65b9\u6cd5\u7684\u53c2\u6570\u4e2a\u65701\nsleep\u65b9\u6cd5\u7684\u53c2\u6570\u5bf9\u8c61\u6570\u7ec4[int arg0]\nsleep\u65b9\u6cd5\u7684\u53c2\u6570\u8fd4\u56de\u503c\u7c7b\u578bvoid<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230getMethods\u83b7\u53d6\u7684\u65b9\u6cd5\u4e2d\u5305\u542bObject\u7236\u7c7b\u4e2d\u5b9a\u4e49\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u4e0d\u5305\u542b\u672c\u7c7b\u4e2d\u5b9a\u4e49\u7684\u79c1\u6709\u65b9\u6cd5sleep\u3002\u53e6\u5916\u6211\u4eec\u8fd8\u53ef\u4ee5\u83b7\u53d6\u65b9\u6cd5\u7684\u53c2\u6570\u53ca\u8fd4\u56de\u503c\u4fe1\u606f\uff1a<\/p>\n<ul>\n<li>\n<p>\u83b7\u53d6\u53c2\u6570\u76f8\u5173\u7684\u5c5e\u6027\uff1a<\/p>\n<ul>\n<li>\u83b7\u53d6\u65b9\u6cd5\u53c2\u6570\u4e2a\u6570\uff1agetParameterCount()<\/li>\n<li>\u83b7\u53d6\u65b9\u6cd5\u53c2\u6570\u6570\u7ec4\u5bf9\u8c61\uff1agetParameters() \uff0c\u8fd4\u56de\u503c\u662fjava.lang.reflect.Parameter\u6570\u7ec4<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u83b7\u53d6\u8fd4\u56de\u503c\u76f8\u5173\u7684\u5c5e\u6027<\/p>\n<ul>\n<li>\u83b7\u53d6\u65b9\u6cd5\u8fd4\u56de\u503c\u7684\u6570\u636e\u7c7b\u578b\uff1agetReturnType()<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>4.5.\u65b9\u6cd5\u7684\u8c03\u7528<\/h3>\n<p>\u5b9e\u9645\u5728\u4e0a\u6587\u4e2d\u5df2\u7ecf\u6f14\u793a\u4e86\u65b9\u6cd5\u7684\u8c03\u7528\uff0c\u5982\u4e0binvoke\u8c03\u7528dinner\u65b9\u6cd5<\/p>\n<pre><code class=\"java\">Method dinnerMethod = cls.getDeclaredMethod(&quot;dinner&quot;);\ndinnerMethod.invoke(obj);  \/\/\u6253\u5370\uff1a\u5403\u665a\u9910\uff01<\/code><\/pre>\n<p>dinner\u65b9\u6cd5\u662f\u65e0\u53c2\u7684\u90a3\u4e48\u6709\u53c2\u6570\u7684\u65b9\u6cd5\u600e\u4e48\u8c03\u7528?\u770b\u770binvoke\u65b9\u6cd5\u5b9a\u4e49\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fMethod\u5bf9\u8c61\uff0c\u65e0\u8bba\u540e\u9762<code> Object... args<\/code>\u6709\u591a\u5c11\u53c2\u6570\u5c31\u6309\u7167\u65b9\u6cd5\u5b9a\u4e49\u4f9d\u6b21\u4f20\u53c2\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<pre><code class=\"java\">public Object invoke(Object obj, Object... args)<\/code><\/pre>\n<h3>4.6.\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61(\u5b9e\u4f8b\u5316\u5bf9\u8c61)<\/h3>\n<pre><code class=\"java\">\/\/\u83b7\u53d6Student\u7c7b\u4fe1\u606f\nClass cls = Class.forName(&quot;com.zimug.java.reflection.Student&quot;);\n\/\/\u5bf9\u8c61\u5b9e\u4f8b\u5316\nStudent student = (Student)cls.getDeclaredConstructor().newInstance();\n\/\/\u4e0b\u9762\u7684\u8fd9\u79cd\u65b9\u6cd5\u662f\u5df2\u7ecfDeprecated\u4e86\uff0c\u4e0d\u5efa\u8bae\u4f7f\u7528\u3002\u4f46\u662f\u5728\u6bd4\u8f83\u65e7\u7684JDK\u7248\u672c\u4e2d\u4ecd\u7136\u662f\u552f\u4e00\u7684\u65b9\u5f0f\u3002\n\/\/Student student = (Student)cls.newInstance();<\/code><\/pre>\n<h2>\u4e94\u3001\u53cd\u5c04\u7684\u5e38\u7528\u573a\u666f<\/h2>\n<ul>\n<li>\u901a\u8fc7\u914d\u7f6e\u4fe1\u606f\u8c03\u7528\u7c7b\u7684\u65b9\u6cd5<\/li>\n<li>\u7ed3\u5408\u6ce8\u89e3\u5b9e\u73b0\u7279\u6b8a\u529f\u80fd<\/li>\n<li>\u6309\u9700\u52a0\u8f7djar\u5305\u6216class<\/li>\n<\/ul>\n<h3>5.1. \u901a\u8fc7\u914d\u7f6e\u4fe1\u606f\u8c03\u7528\u7c7b\u7684\u65b9\u6cd5<\/h3>\n<p>\u5c06\u4e0a\u6587\u7684hello world\u4e2d\u7684\u4ee3\u7801\u5c01\u88c5\u4e00\u4e0b\uff0c\u4f60\u77e5\u9053\u7c7b\u540dclassName\u548c\u65b9\u6cd5\u540dmethodName\u662f\u4e0d\u662f\u5c31\u53ef\u4ee5\u8c03\u7528\u65b9\u6cd5\u4e86\uff1f\u81f3\u4e8e\u4f60\u5c06className\u548c methodName\u914d\u7f6e\u5230\u6587\u4ef6\uff0c\u8fd8\u662fnacos\uff0c\u8fd8\u662f\u6570\u636e\u5e93\uff0c\u81ea\u5df1\u51b3\u5b9a\u5427\uff01<\/p>\n<pre><code class=\"java\">public void invokeClassMethod(String className,String methodName) throws ClassNotFoundException, \n            NoSuchMethodException, \n            InvocationTargetException, \n            InstantiationException, \n            IllegalAccessException {\n        \/\/\u83b7\u53d6\u7c7b\u4fe1\u606f\n        Class cls = Class.forName(className);\n        \/\/\u5bf9\u8c61\u5b9e\u4f8b\u5316\n        Object obj = cls.getDeclaredConstructor().newInstance();\n        \/\/\u6839\u636e\u65b9\u6cd5\u540d\u83b7\u53d6\u5e76\u6267\u884c\u65b9\u6cd5\n        Method dinnerMethod = cls.getDeclaredMethod(methodName);\n        dinnerMethod.invoke(obj);\n}<\/code><\/pre>\n<h3>5.2.\u7ed3\u5408\u6ce8\u89e3\u5b9e\u73b0\u7279\u6b8a\u529f\u80fd<\/h3>\n<p>\u5927\u5bb6\u5982\u679c\u5b66\u4e60\u8fc7mybatis plus\u90fd\u5e94\u8be5\u5b66\u4e60\u8fc7\u8fd9\u6837\u7684\u4e00\u4e2a\u6ce8\u89e3TableName\uff0c\u8fd9\u4e2a\u6ce8\u89e3\u8868\u793a\u5f53\u524d\u7684\u5b9e\u4f8b\u7c7bStudent\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u4e2d\u7684\u54ea\u4e00\u5f20\u8868\u3002\u5982\u4e0b\u95ee\u4ee3\u7801\u6240\u793a\uff0cStudent\u6240\u793a\u8be5\u7c7b\u5bf9\u5e94\u7684\u662ft_student\u8fd9\u5f20\u8868\u3002<\/p>\n<pre><code>@TableName(&quot;t_student&quot;)\npublic class Student {\n    public String nickName;\n    private Integer age;\n}<\/code><\/pre>\n<p>\u4e0b\u9762\u6211\u4eec\u81ea\u5b9a\u4e49TableName\u8fd9\u4e2a\u6ce8\u89e3<\/p>\n<pre><code class=\"java\">@Target(ElementType.TYPE)  \/\/\u8868\u793aTableName\u53ef\u4f5c\u7528\u4e8e\u7c7b\u3001\u63a5\u53e3\u6216enum Class, \u6216interface\n@Retention(RetentionPolicy.RUNTIME) \/\/\u8868\u793a\u8fd0\u884c\u65f6\u7531JVM\u52a0\u8f7d\npublic @interface TableName {\n       String value() ;   \/\/\u5219\u4f7f\u7528@TableName\u6ce8\u89e3\u7684\u65f6\u5019\uff1a @TableName(\u201dt_student\u201d);\n}<\/code><\/pre>\n<p>\u6709\u4e86\u8fd9\u4e2a\u6ce8\u89e3\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u626b\u63cf\u67d0\u4e2a\u8def\u5f84\u4e0b\u7684java\u6587\u4ef6\uff0c\u81f3\u4e8e\u7c7b\u6ce8\u89e3\u7684\u626b\u63cf\u6211\u4eec\u5c31\u4e0d\u7528\u81ea\u5df1\u5f00\u53d1\u4e86\uff0c\u5f15\u5165\u4e0b\u9762\u7684maven\u5750\u6807\u5c31\u53ef\u4ee5<\/p>\n<pre><code class=\"xml\">&lt;dependency&gt;\n    &lt;groupId&gt;org.reflections&lt;\/groupId&gt;\n    &lt;artifactId&gt;reflections&lt;\/artifactId&gt;\n    &lt;version&gt;0.9.10&lt;\/version&gt;\n&lt;\/dependency&gt;<\/code><\/pre>\n<p>\u770b\u4e0b\u9762\u4ee3\u7801\uff1a\u5148\u626b\u63cf\u5305\uff0c\u4ece\u5305\u4e2d\u83b7\u53d6\u6807\u6ce8\u4e86TableName\u6ce8\u89e3\u7684\u7c7b\uff0c\u518d\u5bf9\u8be5\u7c7b\u6253\u5370\u6ce8\u89e3value\u4fe1\u606f<\/p>\n<pre><code>\/\/ \u8981\u626b\u63cf\u7684\u5305\nString packageName = &quot;com.zimug.java.reflection&quot;;\nReflections f = new Reflections(packageName);\n\/\/ \u83b7\u53d6\u626b\u63cf\u5230\u7684\u6807\u8bb0\u6ce8\u89e3\u7684\u96c6\u5408\nSet&lt;Class&lt;?&gt;&gt; set = f.getTypesAnnotatedWith(TableName.class);\nfor (Class&lt;?&gt; c : set) {\n\/\/ \u5faa\u73af\u83b7\u53d6\u6807\u8bb0\u7684\u6ce8\u89e3\nTableName annotation = c.getAnnotation(TableName.class);\n\/\/ \u6253\u5370\u6ce8\u89e3\u4e2d\u7684\u5185\u5bb9\nSystem.out.println(c.getName() + &quot;\u7c7b\uff0cTableName\u6ce8\u89e3value=&quot; + annotation.value());<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n<pre><code>com.zimug.java.reflection.Student\u7c7b\uff0cTableName\u6ce8\u89e3value=t_student<\/code><\/pre>\n<p>\u6709\u7684\u670b\u53cb\u4f1a\u95ee\u8fd9\u6709\u4ec0\u4e48\u7528\uff1f\u8fd9\u6709\u5927\u7528\u5904\u4e86\u3002\u6709\u4e86\u7c7b\u5b9a\u4e49\u4e0e\u6570\u636e\u5e93\u8868\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u4f60\u8fd8\u80fd\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u7c7b\u7684\u6210\u5458\u53d8\u91cf\uff0c\u4e4b\u540e\u4f60\u662f\u4e0d\u662f\u5c31\u53ef\u4ee5\u6839\u636e\u8868\u660et_student\u548c\u5b57\u6bb5\u540dnickName\uff0cage\u6784\u5efa\u589e\u5220\u6539\u67e5\u7684SQL\u4e86\uff1f\u5168\u90fd\u6784\u5efa\u5b8c\u6bd5\uff0c\u662f\u4e0d\u662f\u5c31\u662f\u4e00\u4e2a\u57fa\u7840\u5f97Mybatis plus\u4e86\uff1f<\/p>\n<p>\u53cd\u5c04\u548c\u6ce8\u89e3\u7ed3\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u6f14\u5316\u51fa\u8bb8\u8bb8\u591a\u591a\u7684\u5e94\u7528\u573a\u666f\uff0c\u7279\u522b\u662f\u5728\u67b6\u6784\u4f18\u5316\u65b9\u9762\uff0c\u7b49\u5f85\u4f60\u53bb\u53d1\u89c9\u554a\uff01<\/p>\n<h3>5.3.\u6309\u9700\u52a0\u8f7djar\u5305\u6216class<\/h3>\n<p>\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u4e0d\u5e0c\u671bJVM\u7684\u52a0\u8f7d\u5668\u4e00\u6b21\u6027\u7684\u628a\u6240\u6709\u7684jar\u5305\u88c5\u8f7d\u5230JVM\u865a\u62df\u673a\u4e2d\uff0c\u56e0\u4e3a\u8fd9\u6837\u4f1a\u5f71\u54cd\u9879\u76ee\u7684\u542f\u52a8\u548c\u521d\u59cb\u5316\u6548\u7387\uff0c\u5e76\u4e14\u5360\u7528\u8f83\u591a\u7684\u5185\u5b58\u3002\u6211\u4eec\u5e0c\u671b\u6309\u9700\u52a0\u8f7d\uff0c\u9700\u8981\u7528\u5230\u54ea\u4e9bjar\uff0c\u6309\u7167\u7a0b\u5e8f\u52a8\u6001\u8fd0\u884c\u7684\u9700\u6c42\u53d6\u52a0\u8f7d\u8fd9\u4e9bjar\u3002<\/p>\n<pre><code class=\"java\">\/\/\u6309\u8def\u5f84\u52a0\u8f7djar\u5305\nFile file = new File(&quot;D:\/com\/zimug\/commons-lang3.jar&quot;);\nURL url = file.toURI().toURL();\n\/\/\u521b\u5efa\u7c7b\u52a0\u8f7d\u5668\nClassLoader classLoader = new URLClassLoader(new URL[]{url});\n\nClass cls = classLoader.loadClass(&quot;org.apache.commons.lang3.StringUtils&quot;);<\/code><\/pre>\n<p>\u540c\u6837\u7684\u628a.class\u6587\u4ef6\u653e\u5728\u4e00\u4e2a\u8def\u5f84\u4e0b\uff0c\u6211\u4eec\u4e5f\u662f\u53ef\u4ee5\u52a8\u6001\u52a0\u8f7d\u5230\u7684<\/p>\n<pre><code class=\"java\">\/\/java\u7684.class\u6587\u4ef6\u6240\u5728\u8def\u5f84\nFile file = new File(&quot;D:\/com\/zimug&quot;);\nURL url = file.toURI().toURL();\n\/\/\u521b\u5efa\u7c7b\u52a0\u8f7d\u5668\nClassLoader classLoader = new URLClassLoader(new URL[]{url});\n\/\/\u52a0\u8f7d\u6307\u5b9a\u7c7b\uff0cpackage\u5168\u8def\u5f84\nClass&lt;?&gt; cls = classLoader.loadClass(&quot;com.zimug.java.reflection.Student&quot;);<\/code><\/pre>\n<p>\u7c7b\u7684\u52a8\u6001\u52a0\u8f7d\u80fd\u4e0d\u80fd\u8ba9\u4f60\u60f3\u5230\u4e9b\u4ec0\u4e48\uff1f\u662f\u4e0d\u662f\u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7801\u4fee\u6539\uff0c\u4e0d\u9700\u8981\u91cd\u65b0\u542f\u52a8\u5bb9\u5668\uff1f\u5bf9\u7684\uff0c\u5c31\u662f\u8fd9\u4e2a\u539f\u7406\uff0c\u56e0\u4e3a\u4e00\u4e2a\u7c7b\u7684Class\u5bf9\u8c61\u53ea\u6709\u4e00\u4e2a\uff0c\u6240\u4ee5\u4e0d\u7ba1\u4f60\u91cd\u65b0\u52a0\u8f7d\u591a\u5c11\u6b21\uff0c\u90fd\u662f\u4f7f\u7528\u6700\u540e\u4e00\u6b21\u52a0\u8f7d\u7684class\u5bf9\u8c61\uff08\u4e0a\u6587\u8bb2\u8fc7\u54e6\uff09\u3002<\/p>\n<h2>\u516d\u3001\u53cd\u5c04\u7684\u4f18\u7f3a\u70b9<\/h2>\n<ul>\n<li>\u4f18\u70b9\uff1a\u81ea\u7531\uff0c\u4f7f\u7528\u7075\u6d3b\uff0c\u4e0d\u53d7\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\u9650\u5236\u3002\u53ef\u4ee5\u6839\u636e\u6307\u5b9a\u7c7b\u540d\u3001\u65b9\u6cd5\u540d\u6765\u5b9e\u73b0\u65b9\u6cd5\u8c03\u7528\uff0c\u975e\u5e38\u9002\u5408\u5b9e\u73b0\u4e1a\u52a1\u7684\u7075\u6d3b\u914d\u7f6e\u3002<\/li>\n<li>\n<p>\u7f3a\u70b9\uff1a<\/p>\n<ul>\n<li>\u4e5f\u6b63\u56e0\u4e3a\u53cd\u5c04\u4e0d\u53d7\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\u9650\u5236\uff0c\u5176\u5b89\u5168\u6027\u4f4e\uff0c\u5f88\u5927\u90e8\u5206\u7684java\u5b89\u5168\u95ee\u9898\u90fd\u662f\u53cd\u5c04\u5bfc\u81f4\u7684\u3002<\/li>\n<li>\u76f8\u5bf9\u4e8e\u6b63\u5e38\u7684\u5bf9\u8c61\u7684\u8bbf\u95ee\u8c03\u7528\uff0c\u53cd\u5c04\u56e0\u4e3a\u5b58\u5728\u7c7b\u548c\u65b9\u6cd5\u7684\u5b9e\u4f8b\u5316\u8fc7\u7a0b\uff0c\u6027\u80fd\u4e5f\u76f8\u5bf9\u8f83\u4f4e<\/li>\n<li>\u7834\u574fjava\u7c7b\u5c01\u88c5\u6027\uff0c\u7c7b\u7684\u4fe1\u606f\u9690\u85cf\u6027\u548c\u8fb9\u754c\u88ab\u7834\u574f<br \/>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u516c\u544a\u53f7\uff1a\u5b57\u6bcd\u54e5\u6742\u8c08\uff0c\u56de\u590d003\u8d60\u9001\u4f5c\u8005\u4e13\u680f\u300adocker\u4fee\u70bc\u4e4b\u9053\u300b\u7684PDF\u7248\u672c\uff0c30\u4f59\u7bc7\u7cbe\u54c1docker\u6587\u7ae0\u3002\u5b57\u6bcd\u54e5\u535a\u5ba2\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=a2xN09z8Cn8bR%2Fc7Pphr0g%3D%3D.M0iFfTKCMdu5F0trfAbG5fR183gxBwqJbX3gLNOtKMw%3D\" rel=\"nofollow\">zimug.com<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042318592\">https:\/\/segmentfault.com\/a\/1190000042318592<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u4ec0\u4e48\u662fjava\u53cd\u5c04\uff1f \u5728java\u7684\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8fc7\u7a0b\u4e2d\uff0c\u901a\u5e38\u6211\u4eec\u9700\u8981\u5148\u77e5\u9053\u4e00\u4e2aClass\u7c7b\uff0c\u7136\u540enew \u7c7b\u540d [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006204","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006204"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006204\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}