{"id":2244,"date":"2025-03-02T11:22:43","date_gmt":"2025-03-02T03:22:43","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2244"},"modified":"2025-03-02T11:22:43","modified_gmt":"2025-03-02T03:22:43","slug":"java-%e5%8f%8d%e5%b0%84%ef%bc%88reflection%ef%bc%89%e4%ba%8c","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/02\/java-%e5%8f%8d%e5%b0%84%ef%bc%88reflection%ef%bc%89%e4%ba%8c\/","title":{"rendered":"Java \u53cd\u5c04\uff08Reflection\uff09\u4e8c"},"content":{"rendered":"\n<p>\u53cd\u5c04\u673a\u5236\u5728 Java \u4e2d\u63d0\u4f9b\u4e86\u52a8\u6001\u64cd\u4f5c\u7c7b\u3001\u65b9\u6cd5\u3001\u6784\u9020\u51fd\u6570\u7b49\u7684\u5f3a\u5927\u529f\u80fd\u3002\u5b83\u4e0d\u4ec5\u662f Java \u6838\u5fc3\u7279\u6027\u4e4b\u4e00\uff0c\u4e5f\u662f\u8bb8\u591a\u6846\u67b6\u548c\u5de5\u5177\u7684\u57fa\u7840\u3002\u4e86\u89e3\u53cd\u5c04\u7684\u6df1\u5c42\u6b21\u5185\u5bb9\u6709\u52a9\u4e8e\u66f4\u597d\u5730\u7406\u89e3 Java \u7a0b\u5e8f\u7684\u52a8\u6001\u884c\u4e3a\uff0c\u7279\u522b\u662f\u5728\u7f16\u5199\u7075\u6d3b\u3001\u6269\u5c55\u6027\u5f3a\u7684\u5e94\u7528\u65f6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u53cd\u5c04\u7684\u5e95\u5c42\u5b9e\u73b0\u539f\u7406<\/strong><\/h3>\n\n\n\n<p>Java \u4e2d\u7684\u53cd\u5c04\u673a\u5236\u901a\u8fc7 <code>Class<\/code> \u7c7b\u6765\u5b9e\u73b0\u3002\u6bcf\u4e00\u4e2a Java \u7c7b\u5728 JVM \u4e2d\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684 <code>Class<\/code> \u5bf9\u8c61\uff0c\u53cd\u5c04\u673a\u5236\u901a\u8fc7\u8fd9\u4e2a <code>Class<\/code> \u5bf9\u8c61\u6765\u8bbf\u95ee\u548c\u64cd\u4f5c\u7c7b\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<p><strong>\u539f\u7406\u6982\u8ff0\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7c7b\u7684\u52a0\u8f7d\u4e0e Class \u5bf9\u8c61<\/strong>\uff1a\u5f53 Java \u7c7b\u88ab\u52a0\u8f7d\u65f6\uff0cJVM \u4f1a\u6839\u636e\u7c7b\u7684\u5b57\u8282\u7801\u6587\u4ef6\uff08<code>.class<\/code> \u6587\u4ef6\uff09\u4e3a\u5176\u521b\u5efa\u4e00\u4e2a <code>Class<\/code> \u5bf9\u8c61\uff0c\u8fd9\u4e2a <code>Class<\/code> \u5bf9\u8c61\u5305\u542b\u4e86\u7c7b\u7684\u5143\u6570\u636e\uff08\u5b57\u6bb5\u3001\u65b9\u6cd5\u3001\u6784\u9020\u65b9\u6cd5\u7b49\uff09\u3002\u53cd\u5c04\u673a\u5236\u6b63\u662f\u901a\u8fc7\u64cd\u4f5c\u8fd9\u4e2a <code>Class<\/code> \u5bf9\u8c61\u6765\u8bbf\u95ee\u7c7b\u7684\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>Class \u5bf9\u8c61\u7684\u5185\u5b58\u7ba1\u7406<\/strong>\uff1a<code>Class<\/code> \u5bf9\u8c61\u662f\u5728 JVM \u4e2d\u4f5c\u4e3a\u5143\u6570\u636e\u5b58\u50a8\u7684\uff0cJVM \u4f1a\u5728\u52a0\u8f7d\u7c7b\u65f6\u751f\u6210\u4e00\u4e2a\u552f\u4e00\u7684 <code>Class<\/code> \u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u4ec5\u4f1a\u5728\u5185\u5b58\u4e2d\u5b58\u5728\u4e00\u6b21\uff0c\u56e0\u6b64\u53cd\u5c04\u673a\u5236\u64cd\u4f5c\u7684\u662f\u8fd9\u4e2a\u5171\u4eab\u7684\u5355\u4e00 <code>Class<\/code> \u5bf9\u8c61\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u53cd\u5c04\u7684\u6027\u80fd\u5f00\u9500\u4e0e\u4f18\u5316<\/strong><\/h3>\n\n\n\n<p>\u53cd\u5c04\u901a\u8fc7 Java \u53cd\u5c04 API \u52a8\u6001\u83b7\u53d6\u7c7b\u7684\u4fe1\u606f\uff0c\u56e0\u6b64\u5b83\u76f8\u8f83\u4e8e\u76f4\u63a5\u8bbf\u95ee\u7c7b\u5b57\u6bb5\u3001\u65b9\u6cd5\u7b49\uff0c\u901a\u5e38\u4f1a\u5e26\u6765\u989d\u5916\u7684\u6027\u80fd\u5f00\u9500\u3002<\/p>\n\n\n\n<p><strong>\u6027\u80fd\u95ee\u9898\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65b9\u6cd5\u67e5\u627e\u7684\u5f00\u9500<\/strong>\uff1a\u6bcf\u6b21\u901a\u8fc7\u53cd\u5c04\u8c03\u7528\u65b9\u6cd5\u65f6\uff0cJVM \u4f1a\u5728\u65b9\u6cd5\u8868\u4e2d\u67e5\u627e\u65b9\u6cd5\u7b7e\u540d\uff0c\u5e76\u8fdb\u884c\u65b9\u6cd5\u7ed1\u5b9a\u3002\u8fd9\u6bd4\u76f4\u63a5\u8c03\u7528\u65b9\u6cd5\u8981\u6162\u3002<\/li>\n\n\n\n<li><strong>\u5b57\u6bb5\u8bbf\u95ee\u7684\u5f00\u9500<\/strong>\uff1a\u53cd\u5c04\u8bbf\u95ee\u5b57\u6bb5\u65f6\uff0cJVM \u4f1a\u901a\u8fc7\u53cd\u5c04\u673a\u5236\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u548c\u8bbf\u95ee\u63a7\u5236\uff08\u4f8b\u5982\uff0c\u79c1\u6709\u5b57\u6bb5\u9700\u8981\u8bbe\u7f6e <code>setAccessible(true)<\/code>\uff09\u3002\u8fd9\u4f1a\u589e\u52a0\u4e00\u4e9b\u989d\u5916\u7684\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4f18\u5316\u53cd\u5c04\u6027\u80fd\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7f13\u5b58 Class \u5bf9\u8c61\u548c Method\u3001Field \u7b49\u5bf9\u8c61<\/strong>\uff1a\u907f\u514d\u91cd\u590d\u8c03\u7528 <code>getDeclaredMethod()<\/code>\u3001<code>getField()<\/code> \u7b49\u65b9\u6cd5\u3002\u53ef\u4ee5\u5c06\u83b7\u53d6\u7684\u53cd\u5c04\u4fe1\u606f\u7f13\u5b58\uff0c\u4ee5\u4fbf\u91cd\u590d\u4f7f\u7528\u3002 \u4f8b\u5982\uff0c\u4f7f\u7528\u4e00\u4e2a Map \u6765\u7f13\u5b58\u65b9\u6cd5\u6216\u5b57\u6bb5\u4fe1\u606f\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   Map&lt;String, Method&gt; methodCache = new HashMap&lt;&gt;();\n   Method method = methodCache.get(\"methodName\");\n   if (method == null) {\n       method = cls.getDeclaredMethod(\"methodName\");\n       methodCache.put(\"methodName\", method);\n   }<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528 <code>setAccessible(true)<\/code> \u65f6\u8981\u5c0f\u5fc3<\/strong>\uff1a\u5c3d\u91cf\u51cf\u5c11\u5bf9\u79c1\u6709\u5b57\u6bb5\u548c\u65b9\u6cd5\u7684\u8bbf\u95ee\u3002\u867d\u7136 <code>setAccessible(true)<\/code> \u53ef\u4ee5\u7ed5\u8fc7 Java \u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u4f46\u8fc7\u5ea6\u4f7f\u7528\u53ef\u80fd\u4f1a\u5f71\u54cd\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u7279\u522b\u662f\u5728\u5927\u578b\u7cfb\u7edf\u4e2d\u3002<\/li>\n\n\n\n<li><strong>\u51cf\u5c11\u53cd\u5c04\u7684\u4f7f\u7528<\/strong>\uff1a\u5728\u53ef\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u5c3d\u91cf\u907f\u514d\u8fc7\u591a\u4f7f\u7528\u53cd\u5c04\uff0c\u5c24\u5176\u662f\u5728\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\u4e2d\u3002\u4f7f\u7528\u63a5\u53e3\u3001\u62bd\u8c61\u7c7b\u7b49\u9762\u5411\u5bf9\u8c61\u7684\u8bbe\u8ba1\u65b9\u6cd5\u6765\u907f\u514d\u53cd\u5c04\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u52a8\u6001\u4ee3\u7406\u4e0e\u53cd\u5c04\u7684\u5173\u7cfb<\/strong><\/h3>\n\n\n\n<p>Java \u52a8\u6001\u4ee3\u7406\u662f\u53cd\u5c04\u673a\u5236\u7684\u9ad8\u7ea7\u5e94\u7528\u4e4b\u4e00\u3002\u52a8\u6001\u4ee3\u7406\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u4e86\u4e00\u7ec4\u63a5\u53e3\u7684\u4ee3\u7406\u5bf9\u8c61\uff0c\u800c\u65e0\u9700\u5728\u7f16\u8bd1\u65f6\u751f\u6210\u4ee3\u7406\u7c7b\u3002\u8fd9\u4f7f\u5f97\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u539f\u6709\u7c7b\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u589e\u5f3a\u5176\u529f\u80fd\u3002<\/p>\n\n\n\n<p><strong>\u52a8\u6001\u4ee3\u7406\u793a\u4f8b\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.lang.reflect.*;\n\ninterface Greet {\n    void sayHello();\n}\n\nclass GreetImpl implements Greet {\n    public void sayHello() {\n        System.out.println(\"Hello, world!\");\n    }\n}\n\nclass MyInvocationHandler implements InvocationHandler {\n    private Object target;\n\n    public MyInvocationHandler(Object target) {\n        this.target = target;\n    }\n\n    @Override\n    public Object invoke(Object proxy, Method method, Object&#91;] args) throws Throwable {\n        System.out.println(\"Before method call\");\n        Object result = method.invoke(target, args);\n        System.out.println(\"After method call\");\n        return result;\n    }\n}\n\npublic class Test {\n    public static void main(String&#91;] args) {\n        Greet greet = new GreetImpl();\n        Greet proxy = (Greet) Proxy.newProxyInstance(\n                Greet.class.getClassLoader(),\n                new Class&#91;]{Greet.class},\n                new MyInvocationHandler(greet)\n        );\n        proxy.sayHello();\n    }\n}<\/code><\/pre>\n\n\n\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Before method call\nHello, world!\nAfter method call<\/code><\/pre>\n\n\n\n<p><strong>\u52a8\u6001\u4ee3\u7406\u673a\u5236\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7 <code>Proxy.newProxyInstance()<\/code> \u65b9\u6cd5\uff0cJVM \u4f1a\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u751f\u6210\u4e00\u4e2a\u4ee3\u7406\u7c7b\u3002\u8fd9\u4e2a\u4ee3\u7406\u7c7b\u5b9e\u73b0\u4e86\u6307\u5b9a\u7684\u63a5\u53e3\uff0c\u5e76\u5c06\u6240\u6709\u65b9\u6cd5\u8c03\u7528\u59d4\u6258\u7ed9\u6307\u5b9a\u7684 <code>InvocationHandler<\/code>\u3002<\/li>\n\n\n\n<li><code>InvocationHandler<\/code> \u63a5\u53e3\u4e2d\u7684 <code>invoke()<\/code> \u65b9\u6cd5\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u65b9\u6cd5\u8c03\u7528\u524d\u540e\u8fdb\u884c\u589e\u5f3a\u64cd\u4f5c\uff08\u4f8b\u5982\u65e5\u5fd7\u3001\u6743\u9650\u68c0\u67e5\u7b49\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u53cd\u5c04\u548c\u6ce8\u89e3\uff08Annotations\uff09\u7684\u7ed3\u5408<\/strong><\/h3>\n\n\n\n<p>\u6ce8\u89e3\u662f Java \u4e2d\u7684\u4e00\u79cd\u5143\u6570\u636e\u673a\u5236\uff0c\u5b83\u53ef\u4ee5\u9644\u52a0\u5230\u7c7b\u3001\u65b9\u6cd5\u3001\u5b57\u6bb5\u7b49\u5143\u7d20\u4e0a\u3002\u53cd\u5c04\u548c\u6ce8\u89e3\u5e38\u5e38\u4e00\u8d77\u4f7f\u7528\uff0c\u5c24\u5176\u662f\u5728\u6846\u67b6\u5f00\u53d1\u4e2d\uff0c\u6ce8\u89e3\u63d0\u4f9b\u4e86\u989d\u5916\u7684\u5143\u6570\u636e\uff0c\u53cd\u5c04\u5219\u7528\u4e8e\u52a8\u6001\u89e3\u6790\u8fd9\u4e9b\u5143\u6570\u636e\u3002<\/p>\n\n\n\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.lang.annotation.*;\nimport java.lang.reflect.*;\n\n@Retention(RetentionPolicy.RUNTIME)\n@Target(ElementType.METHOD)\n@interface MyAnnotation {\n    String value();\n}\n\nclass TestClass {\n    @MyAnnotation(value = \"Hello, Annotation!\")\n    public void myMethod() {\n        System.out.println(\"Method executed!\");\n    }\n}\n\npublic class Test {\n    public static void main(String&#91;] args) throws Exception {\n        Class&lt;?&gt; cls = TestClass.class;\n        Method method = cls.getMethod(\"myMethod\");\n\n        \/\/ \u83b7\u53d6\u65b9\u6cd5\u4e0a\u7684\u6ce8\u89e3\n        MyAnnotation annotation = method.getAnnotation(MyAnnotation.class);\n        if (annotation != null) {\n            System.out.println(\"Annotation value: \" + annotation.value());\n        }\n\n        \/\/ \u8c03\u7528\u65b9\u6cd5\n        method.invoke(cls.newInstance());\n    }\n}<\/code><\/pre>\n\n\n\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Annotation value: Hello, Annotation!\nMethod executed!<\/code><\/pre>\n\n\n\n<p><strong>\u8bf4\u660e\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u6ce8\u89e3\u65f6\uff0c\u901a\u8fc7\u53cd\u5c04\u53ef\u4ee5\u8bbf\u95ee\u5230\u65b9\u6cd5\u3001\u7c7b\u4e0a\u7684\u6ce8\u89e3\u3002<code>method.getAnnotation()<\/code> \u65b9\u6cd5\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u83b7\u53d6\u6307\u5b9a\u65b9\u6cd5\u4e0a\u7684\u6ce8\u89e3\uff0c\u5e76\u8bfb\u53d6\u6ce8\u89e3\u4e2d\u5b9a\u4e49\u7684\u5143\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. \u53cd\u5c04\u4e0e\u5b89\u5168\u6027<\/strong><\/h3>\n\n\n\n<p>\u53cd\u5c04\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u4f46\u4e5f\u4f1a\u5f15\u53d1\u4e00\u4e9b\u5b89\u5168\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ed5\u8fc7\u8bbf\u95ee\u63a7\u5236<\/strong>\uff1a\u53cd\u5c04\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u79c1\u6709\u5b57\u6bb5\u3001\u65b9\u6cd5\u548c\u6784\u9020\u65b9\u6cd5\uff0c\u53ef\u80fd\u5bfc\u81f4\u4e0d\u5b89\u5168\u7684\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6076\u610f\u4ee3\u7801\u901a\u8fc7\u53cd\u5c04\u4fee\u6539\u4e86\u5173\u952e\u5b57\u6bb5\u7684\u503c\uff0c\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u5f02\u5e38\u3002<\/li>\n\n\n\n<li><strong>\u975e\u6cd5\u8bbf\u95ee<\/strong>\uff1a\u5728\u4e0d\u7ecf\u8fc7\u9002\u5f53\u7684\u5b89\u5168\u68c0\u67e5\u7684\u60c5\u51b5\u4e0b\uff0c\u53cd\u5c04\u53ef\u4ee5\u8bbf\u95ee\u654f\u611f\u4fe1\u606f\u6216\u6267\u884c\u4e0d\u5b89\u5168\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u9632\u8303\u63aa\u65bd\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b89\u5168\u7ba1\u7406\u5668<\/strong>\uff1a\u5728\u4f7f\u7528\u53cd\u5c04\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>SecurityManager<\/code> \u63a7\u5236\u53cd\u5c04\u64cd\u4f5c\u7684\u6743\u9650\u3002<\/li>\n\n\n\n<li><strong>\u907f\u514d\u6ee5\u7528\u53cd\u5c04<\/strong>\uff1a\u5c3d\u91cf\u907f\u514d\u76f4\u63a5\u4f7f\u7528\u53cd\u5c04\u4fee\u6539\u7c7b\u7684\u79c1\u6709\u6210\u5458\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u654f\u611f\u6570\u636e\u548c\u5b89\u5168\u63a7\u5236\u65f6\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6. \u53cd\u5c04\u4e0e Java \u6a21\u5757\u5316\uff08Jigsaw\uff09<\/strong><\/h3>\n\n\n\n<p>\u5728 Java 9 \u5f15\u5165\u7684\u6a21\u5757\u5316\u7cfb\u7edf\uff08Jigsaw\uff09\u4e2d\uff0c\u53cd\u5c04\u53d7\u5230\u4e86\u66f4\u52a0\u4e25\u683c\u7684\u9650\u5236\u3002\u901a\u8fc7\u6a21\u5757\u7cfb\u7edf\uff0cJava \u5e73\u53f0\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u54ea\u4e9b\u7c7b\u53ef\u4ee5\u901a\u8fc7\u53cd\u5c04\u8bbf\u95ee\u3002<\/p>\n\n\n\n<p><strong>\u6a21\u5757\u5316\u548c\u53cd\u5c04\u7684\u517c\u5bb9\u6027\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u7c7b\u6240\u5728\u7684\u6a21\u5757\u6ca1\u6709\u660e\u786e\u5bfc\u51fa\u67d0\u4e2a\u5305\uff0c\u5219\u8be5\u5305\u4e2d\u7684\u7c7b\u548c\u6210\u5458\u65e0\u6cd5\u901a\u8fc7\u53cd\u5c04\u8bbf\u95ee\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7\u53cd\u5c04\u8bbf\u95ee\u79c1\u6709\u6210\u5458\u65f6\uff0c\u9700\u8981\u663e\u5f0f\u8bbe\u7f6e <code>setAccessible(true)<\/code>\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cJVM \u53ef\u80fd\u4f1a\u62d2\u7edd\u6b64\u7c7b\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u4e25\u683c\u7684\u6a21\u5757\u5316\u73af\u5883\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>7. \u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p>\u53cd\u5c04\u662f Java 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\u7279\u6027\uff08\u5982\u52a8\u6001\u4ee3\u7406\u3001\u6ce8\u89e3\u3001\u6a21\u5757\u5316\u7b49\uff09\u7684\u7ed3\u5408\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u5e94\u7528\u8fd9\u4e00\u5f3a\u5927\u529f\u80fd\u3002\u540c\u65f6\uff0c\u4f18\u5316\u53cd\u5c04\u7684\u4f7f\u7528\u3001\u907f\u514d\u6ee5\u7528\u548c\u5173\u6ce8\u5b89\u5168\u6027\u95ee\u9898\uff0c\u80fd\u591f\u786e\u4fdd\u4ee3\u7801\u7684\u5065\u58ee\u6027\u548c\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53cd\u5c04\u673a\u5236\u5728 Java \u4e2d\u63d0\u4f9b\u4e86\u52a8\u6001\u64cd\u4f5c\u7c7b\u3001\u65b9\u6cd5\u3001\u6784\u9020\u51fd\u6570\u7b49\u7684\u5f3a\u5927\u529f\u80fd\u3002\u5b83\u4e0d\u4ec5\u662f Java \u6838\u5fc3\u7279\u6027\u4e4b\u4e00\uff0c\u4e5f\u662f\u8bb8 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68],"tags":[],"class_list":["post-2244","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2244"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2244\/revisions"}],"predecessor-version":[{"id":2245,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2244\/revisions\/2245"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}