{"id":769,"date":"2023-03-11T15:43:58","date_gmt":"2022-10-31T16:25:15","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java%e6%b3%a8%e8%a7%a3\/"},"modified":"2025-08-03T07:05:53","modified_gmt":"2025-08-02T23:05:53","slug":"java%e6%b3%a8%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e6%b3%a8%e8%a7%a3\/","title":{"rendered":"Java\u6ce8\u89e3\u8be6\u89e3\uff1a\u638c\u63e1Java\u7f16\u7a0b\u6838\u5fc3\u7279\u6027\u7684\u5b8c\u6574\u6559\u7a0b"},"content":{"rendered":"<p>Java \u6ce8\u91ca\u63d0\u4f9b\u6709\u5173\u4ee3\u7801\u7684\u4fe1\u606f\u3002Java \u6ce8\u91ca\u5bf9\u5176\u6240\u6ce8\u91ca\u7684\u4ee3\u7801\u6ca1\u6709\u76f4\u63a5\u5f71\u54cd\u3002\u5728 Java \u6ce8\u91ca\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u7814\u7a76\u4ee5\u4e0b\u5185\u5bb9\uff1b<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5185\u7f6e\u7684Java\u6ce8\u91ca<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5982\u4f55\u7f16\u5199\u81ea\u5b9a\u4e49\u6ce8\u91ca<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u6ce8\u91ca\u7684\u4f7f\u7528\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u53cd\u5c04API\u89e3\u6790\u6ce8\u91ca\u3002<\/ol>\n<h2>Java\u6ce8\u89e3<\/h2>\n<p>Java 1.5 \u5f15\u5165\u4e86\u6ce8\u89e3\uff0c\u73b0\u5728\u5728 Java EE \u6846\u67b6\u4e2d\uff0c\u5982 Hibernate\u3001Jersey \u548c Spring \u4e2d\u5e7f\u6cdb\u4f7f\u7528\u3002Java \u6ce8\u89e3\u662f\u5d4c\u5165\u5728\u7a0b\u5e8f\u672c\u8eab\u4e2d\u7684\u5173\u4e8e\u7a0b\u5e8f\u7684\u5143\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u88ab\u6ce8\u89e3\u89e3\u6790\u5de5\u5177\u6216\u7f16\u8bd1\u5668\u89e3\u6790\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u6307\u5b9a\u6ce8\u89e3\u7684\u53ef\u7528\u6027\uff0c\u8981\u4e48\u53ea\u5728\u7f16\u8bd1\u65f6\uff0c\u8981\u4e48\u6301\u7eed\u5230\u8fd0\u884c\u65f6\u3002\u5728 Java \u6ce8\u89e3\u4e4b\u524d\uff0c\u7a0b\u5e8f\u7684\u5143\u6570\u636e\u53ef\u4ee5\u901a\u8fc7 Java \u6ce8\u91ca\u6216 Javadoc \u83b7\u53d6\uff0c\u4f46\u662f\u6ce8\u89e3\u63d0\u4f9b\u4e86\u66f4\u591a\u529f\u80fd\u3002\u6ce8\u89e3\u7684\u5143\u6570\u636e\u4e5f\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u53ef\u7528\uff0c\u5e76\u4e14\u6ce8\u89e3\u89e3\u6790\u5668\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u786e\u5b9a\u5904\u7406\u6d41\u7a0b\u3002\u4f8b\u5982\uff0c\u5728 Jersey Web \u670d\u52a1\u4e2d\uff0c\u6211\u4eec\u5728\u65b9\u6cd5\u4e2d\u6dfb\u52a0 PATH \u6ce8\u89e3\u548c URI \u5b57\u7b26\u4e32\uff0c\u800c\u5728\u8fd0\u884c\u65f6\uff0cJersey \u89e3\u6790\u5b83\u4ee5\u786e\u5b9a\u7ed9\u5b9a URI \u6a21\u5f0f\u8981\u8c03\u7528\u7684\u65b9\u6cd5\u3002<\/p>\n<h2>Java\u81ea\u5b9a\u4e49\u6ce8\u89e3<\/h2>\n<p>\u521b\u5efa\u81ea\u5b9a\u4e49\u6ce8\u89e3\u7c7b\u4f3c\u4e8e\u7f16\u5199\u63a5\u53e3\uff0c\u552f\u4e00\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5728\u63a5\u53e3\u5173\u952e\u5b57\u7684\u524d\u9762\u52a0\u4e0a_@_\u7b26\u53f7\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u6ce8\u89e3\u4e2d\u58f0\u660e\u65b9\u6cd5\u3002\u8ba9\u6211\u4eec\u770b\u4e00\u4e2aJava\u81ea\u5b9a\u4e49\u6ce8\u89e3\u7684\u4f8b\u5b50\uff0c\u7136\u540e\u6211\u4eec\u5c06\u8ba8\u8bba\u5b83\u7684\u7279\u70b9\u548c\u91cd\u8981\u7684\u8981\u70b9\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.annotations;\r\n\r\nimport java.lang.annotation.Documented;\r\nimport java.lang.annotation.ElementType;\r\nimport java.lang.annotation.Inherited;\r\nimport java.lang.annotation.Retention;\r\nimport java.lang.annotation.RetentionPolicy;\r\nimport java.lang.annotation.Target;\r\n\r\n@Documented\r\n@Target(ElementType.METHOD)\r\n@Inherited\r\n@Retention(RetentionPolicy.RUNTIME)\r\npublic @interface MethodInfo{\r\n\tString author() default \"Pankaj\";\r\n\tString date();\r\n\tint revision() default 1;\r\n\tString comments();\r\n}\r\n<\/code><\/pre>\n<p>\u5173\u4e8ejava\u6ce8\u89e3\u7684\u4e00\u4e9b\u91cd\u8981\u70b9\u6709:<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u6ce8\u89e3\u65b9\u6cd5\u4e0d\u80fd\u6709\u53c2\u6570\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u6ce8\u89e3\u65b9\u6cd5\u7684\u8fd4\u56de\u7c7b\u578b\u9650\u5236\u4e3a\u539f\u59cb\u7c7b\u578b\u3001String\u3001Enums\u3001\u6ce8\u89e3\u6216\u8fd9\u4e9b\u7c7b\u578b\u7684\u6570\u7ec4\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Java\u6ce8\u89e3\u65b9\u6cd5\u53ef\u4ee5\u6709\u9ed8\u8ba4\u503c\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u6ce8\u89e3\u53ef\u4ee5\u9644\u52a0\u5143\u6ce8\u89e3\u3002\u5143\u6ce8\u89e3\u7528\u4e8e\u63d0\u4f9b\u5173\u4e8e\u6ce8\u89e3\u7684\u4fe1\u606f\u3002<\/ol>\n<h2>Java\u4e2d\u7684\u5143\u6ce8\u89e3<\/h2>\n<p>\u6709\u4e94\u79cd\u7c7b\u578b\u7684\u5143\u6ce8\u91ca\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u88ab@Documented\u6ce8\u89e3\u7684\u5143\u7d20\u8868\u793a\u5e94\u8be5\u7531javadoc\u548c\u7c7b\u4f3c\u5de5\u5177\u8fdb\u884c\u6587\u6863\u5316\u3002\u8fd9\u79cd\u7c7b\u578b\u5e94\u8be5\u7528\u4e8e\u6ce8\u91ca\u5bf9\u5176\u5ba2\u6237\u7aef\u4f7f\u7528\u6709\u5f71\u54cd\u7684\u7c7b\u578b\u58f0\u660e\u3002\u5982\u679c\u4e00\u4e2a\u7c7b\u578b\u58f0\u660e\u88ab\u6ce8\u89e3\u4e3a@Documented\uff0c\u90a3\u4e48\u5b83\u7684\u6ce8\u89e3\u5c06\u6210\u4e3a\u88ab\u6ce8\u91ca\u5143\u7d20\u7684\u516c\u5171API\u7684\u4e00\u90e8\u5206\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>@Target\u6ce8\u89e3\u8868\u793a\u6ce8\u89e3\u7c7b\u578b\u9002\u7528\u4e8e\u54ea\u4e9b\u7a0b\u5e8f\u5143\u7d20\u3002\u4e00\u4e9b\u53ef\u80fd\u7684\u503c\u6709TYPE\u3001METHOD\u3001CONSTRUCTOR\u3001FIELD\u7b49\u3002\u5982\u679c\u6ca1\u6709\u5b58\u5728Target\u5143\u6ce8\u89e3\uff0c\u5219\u6ce8\u89e3\u53ef\u4ee5\u7528\u4e8e\u4efb\u4f55\u7a0b\u5e8f\u5143\u7d20\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>@Inherited\u6ce8\u89e3\u8868\u793a\u6ce8\u89e3\u7c7b\u578b\u81ea\u52a8\u7ee7\u627f\u3002\u5982\u679c\u7528\u6237\u67e5\u8be2\u4e00\u4e2a\u7c7b\u58f0\u660e\u7684\u6ce8\u89e3\u7c7b\u578b\uff0c\u5e76\u4e14\u8be5\u7c7b\u58f0\u660e\u6ca1\u6709\u8be5\u7c7b\u578b\u7684\u6ce8\u89e3\uff0c\u5219\u5c06\u81ea\u52a8\u67e5\u8be2\u8be5\u7c7b\u7684\u7236\u7c7b\u662f\u5426\u6709\u8be5\u6ce8\u89e3\u7c7b\u578b\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5c06\u91cd\u590d\u8fdb\u884c\uff0c\u76f4\u5230\u627e\u5230\u8be5\u7c7b\u578b\u7684\u6ce8\u89e3\uff0c\u6216\u8005\u5230\u8fbe\u7c7b\u5c42\u6b21\u7ed3\u6784\u7684\u9876\u90e8(Object)\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>@Retention\u6ce8\u89e3\u8868\u793a\u5e26\u6709\u8be5\u6ce8\u89e3\u7684\u6ce8\u89e3\u7c7b\u578b\u4fdd\u7559\u591a\u957f\u65f6\u95f4\u3002\u5b83\u63a5\u53d7\u4e00\u4e2aRetentionPlicy\u53c2\u6570\uff0c\u53ef\u80fd\u7684\u503c\u6709SOURCE\u3001CLASS\u548cRUNTIME\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>@Repeatable\u7528\u4e8e\u6307\u793a\u6ce8\u89e3\u7c7b\u578b\u58f0\u660e\u7684\u6ce8\u89e3\u7c7b\u578b\u662f\u53ef\u91cd\u590d\u7684\u3002<\/ol>\n<h2>Java\u4e2d\u7684\u5185\u7f6e\u6ce8\u91ca<\/h2>\n<p>Java \u63d0\u4f9b\u4e86\u4e94\u4e2a\u5185\u7f6e\u7684\u6ce8\u89e3\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>@Override &#8211; \u5f53\u6211\u4eec\u60f3\u8981\u8986\u76d6\u7236\u7c7b\u7684\u65b9\u6cd5\u65f6\uff0c\u5e94\u8be5\u4f7f\u7528\u8fd9\u4e2a\u6ce8\u89e3\u6765\u544a\u8bc9\u7f16\u8bd1\u5668\u6211\u4eec\u6b63\u5728\u8986\u76d6\u4e00\u4e2a\u65b9\u6cd5\u3002\u6240\u4ee5\u5f53\u7236\u7c7b\u7684\u65b9\u6cd5\u88ab\u5220\u9664\u6216\u8005\u6539\u53d8\u65f6\uff0c\u7f16\u8bd1\u5668\u4f1a\u663e\u793a\u9519\u8bef\u4fe1\u606f\u3002\u4e86\u89e3\u4e3a\u4ec0\u4e48\u5728\u8986\u76d6\u65b9\u6cd5\u65f6\u5e94\u8be5\u59cb\u7ec8\u4f7f\u7528Java\u7684\u8986\u76d6\u6ce8\u89e3\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>@Deprecated &#8211; \u5f53\u6211\u4eec\u5e0c\u671b\u7f16\u8bd1\u5668\u77e5\u9053\u4e00\u4e2a\u65b9\u6cd5\u5df2\u7ecf\u8fc7\u65f6\u65f6\uff0c\u5e94\u8be5\u4f7f\u7528\u8fd9\u4e2a\u6ce8\u89e3\u3002Java\u5efa\u8bae\u5728javadoc\u4e2d\u63d0\u4f9b\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u65b9\u6cd5\u5df2\u7ecf\u8fc7\u65f6\u4ee5\u53ca\u66ff\u4ee3\u65b9\u6cd5\u7684\u4fe1\u606f\u3002<\/p>\n<p>@SuppressWarnings &#8211; \u8fd9\u53ea\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\u5ffd\u7565\u5b83\u4eec\u4ea7\u751f\u7684\u7279\u5b9a\u8b66\u544a\uff0c\u4f8b\u5982\u5728Java\u6cdb\u578b\u4e2d\u4f7f\u7528\u539f\u59cb\u7c7b\u578b\u3002\u5b83\u7684\u4fdd\u7559\u7b56\u7565\u662fSOURCE\uff0c\u5e76\u4e14\u4f1a\u88ab\u7f16\u8bd1\u5668\u4e22\u5f03\u3002<\/p>\n<p>@FunctionalInterface &#8211; \u8fd9\u4e2a\u6ce8\u89e3\u5728Java 8\u4e2d\u5f15\u5165\uff0c\u8868\u793a\u8be5\u63a5\u53e3\u88ab\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3\u3002<\/p>\n<p>@SafeVarargs &#8211; \u7a0b\u5e8f\u5458\u65ad\u8a00\u88ab\u6ce8\u89e3\u65b9\u6cd5\u6216\u6784\u9020\u51fd\u6570\u7684\u4e3b\u4f53\u5728\u5176varargs\u53c2\u6570\u4e0a\u4e0d\u6267\u884c\u6f5c\u5728\u7684\u4e0d\u5b89\u5168\u64cd\u4f5c\u3002<\/p>\n<h2>Java\u6ce8\u89e3\u793a\u4f8b<\/h2>\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e2aJava\u793a\u4f8b\uff0c\u5c55\u793a\u4e86Java\u4e2d\u5185\u7f6e\u6ce8\u89e3\u7684\u4f7f\u7528\uff0c\u4ee5\u53ca\u6211\u4eec\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\u521b\u5efa\u7684\u81ea\u5b9a\u4e49\u6ce8\u89e3\u7684\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.annotations;\r\n\r\nimport java.io.FileNotFoundException;\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class AnnotationExample {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t}\r\n\r\n\t@Override\r\n\t@MethodInfo(author = \"Pankaj\", comments = \"Main method\", date = \"Nov 17 2012\", revision = 1)\r\n\tpublic String toString() {\r\n\t\treturn \"Overriden toString method\";\r\n\t}\r\n\r\n\t@Deprecated\r\n\t@MethodInfo(comments = \"deprecated method\", date = \"Nov 17 2012\")\r\n\tpublic static void oldMethod() {\r\n\t\tSystem.out.println(\"old method, don't use it.\");\r\n\t}\r\n\r\n\t@SuppressWarnings({ \"unchecked\", \"deprecation\" })\r\n\t@MethodInfo(author = \"Pankaj\", comments = \"Main method\", date = \"Nov 17 2012\", revision = 10)\r\n\tpublic static void genericsTest() throws FileNotFoundException {\r\n\t\tList l = new ArrayList();\r\n\t\tl.add(\"abc\");\r\n\t\toldMethod();\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u76f8\u4fe1\u4e0a\u8ff0\u7684Java\u6ce8\u89e3\u793a\u4f8b\u662f\u81ea\u6211\u89e3\u91ca\u7684\uff0c\u5e76\u5c55\u793a\u4e86\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u4f7f\u7528\u6ce8\u89e3\u7684\u7528\u9014\u3002<\/p>\n<h2>\u89e3\u6790 Java \u6ce8\u89e3<\/h2>\n<p>\u6211\u4eec\u4f7f\u7528\u53cd\u5c04\u6765\u89e3\u6790Java\u7c7b\u7684\u6ce8\u89e3\u3002\u8bf7\u6ce8\u610f\uff0c\u6ce8\u89e3\u7684\u4fdd\u7559\u7b56\u7565\u5e94\u4e3aRUNTIME\uff0c\u5426\u5219\u5728\u8fd0\u884c\u65f6\u5c06\u65e0\u6cd5\u83b7\u53d6\u5176\u4fe1\u606f\uff0c\u6211\u4eec\u5c06\u65e0\u6cd5\u4ece\u4e2d\u63d0\u53d6\u4efb\u4f55\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.annotations;\r\n\r\nimport java.lang.annotation.Annotation;\r\nimport java.lang.reflect.Method;\r\n\r\npublic class AnnotationParsing {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\ttry {\r\n\t\t\tfor (Method method : AnnotationParsing.class.getClassLoader()\r\n\t\t\t\t\t.loadClass((\"com.Olivia.annotations.AnnotationExample\")).getMethods()) {\r\n\t\t\t\t\/\/ checks if MethodInfo annotation is present for the method\r\n\t\t\t\tif (method.isAnnotationPresent(com.Olivia.annotations.MethodInfo.class)) {\r\n\t\t\t\t\ttry {\r\n\t\t\t\t\t\t\/\/ iterates all the annotations available in the method\r\n\t\t\t\t\t\tfor (Annotation anno : method.getDeclaredAnnotations()) {\r\n\t\t\t\t\t\t\tSystem.out.println(\"Annotation in Method '\" + method + \"' : \" + anno);\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\tMethodInfo methodAnno = method.getAnnotation(MethodInfo.class);\r\n\t\t\t\t\t\tif (methodAnno.revision() == 1) {\r\n\t\t\t\t\t\t\tSystem.out.println(\"Method with revision no 1 = \" + method);\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t} catch (Throwable ex) {\r\n\t\t\t\t\t\tex.printStackTrace();\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t} catch (SecurityException | ClassNotFoundException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t}\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7a0b\u5e8f\u7684\u8f93\u51fa\u662f\uff1a<\/p>\n<pre class=\"post-pre\"><code>Annotation in Method 'public java.lang.String com.Olivia.annotations.AnnotationExample.toString()' : @com.Olivia.annotations.MethodInfo(author=Pankaj, revision=1, comments=Main method, date=Nov 17 2012)\r\nMethod with revision no 1 = public java.lang.String com.Olivia.annotations.AnnotationExample.toString()\r\nAnnotation in Method 'public static void com.Olivia.annotations.AnnotationExample.oldMethod()' : @java.lang.Deprecated()\r\nAnnotation in Method 'public static void com.Olivia.annotations.AnnotationExample.oldMethod()' : @com.Olivia.annotations.MethodInfo(author=Pankaj, revision=1, comments=deprecated method, date=Nov 17 2012)\r\nMethod with revision no 1 = public static void com.Olivia.annotations.AnnotationExample.oldMethod()\r\nAnnotation in Method 'public static void com.Olivia.annotations.AnnotationExample.genericsTest() throws java.io.FileNotFoundException' : @com.Olivia.annotations.MethodInfo(author=Pankaj, revision=10, comments=Main method, date=Nov 17 2012)\r\n<\/code><\/pre>\n<p>Java\u53cd\u5c04API\u975e\u5e38\u5f3a\u5927\uff0c\u5728Java\u4e2d\u5e7f\u6cdb\u88ab\u4f7f\u7528\uff0c\u5c24\u5176\u5728J2EE\u6846\u67b6\u5982Spring\u3001Hibernate\u548cJUnit\u4e2d\u3002\u8bf7\u67e5\u770bJava\u4e2d\u7684\u53cd\u5c04\u3002\u4ee5\u4e0a\u662f\u5173\u4e8eJava\u6ce8\u89e3\u793a\u4f8b\u6559\u7a0b\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u5e0c\u671b\u60a8\u4ece\u4e2d\u5b66\u5230\u4e86\u4e00\u4e9b\u77e5\u8bc6\u3002Java\u6ce8\u89e3\u7684\u66f4\u65b0\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Servlet\u89c4\u83033.0\u5f15\u5165\u4e86\u7528\u4e8eServlet\u914d\u7f6e\u548c\u521d\u59cb\u5316\u53c2\u6570\u7684\u6ce8\u91ca\uff0c\u53ef\u4ee5\u5728Java Servlet\u6559\u7a0b\u4e2d\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u6211\u4eec\u53ef\u4ee5\u5728Struts 2\u4e2d\u4f7f\u7528\u6ce8\u91ca\u6765\u914d\u7f6e\u5176\u64cd\u4f5c\u7c7b\u548c\u7ed3\u679c\u9875\u9762\uff0c\u53ef\u4ee5\u5728Struts 2 Hello World\u6ce8\u91ca\u793a\u4f8b\u4e2d\u67e5\u770b\u5de5\u4f5c\u793a\u4f8b\u3002<\/ol>\n<p>\u53c2\u8003\u8d44\u6599\uff1aOracle\u5b98\u65b9\u7f51\u7ad9<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u6ce8\u91ca\u63d0\u4f9b\u6709\u5173\u4ee3\u7801\u7684\u4fe1\u606f\u3002Java \u6ce8\u91ca\u5bf9\u5176\u6240\u6ce8\u91ca\u7684\u4ee3\u7801\u6ca1\u6709\u76f4\u63a5\u5f71\u54cd\u3002\u5728 Java \u6ce8\u91ca\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[183,232,180,2072,184],"class_list":{"0":"post-769","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","10":"tag-2072","11":"tag-184"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u6ce8\u89e3\u8be6\u89e3\uff1a\u638c\u63e1Java\u7f16\u7a0b\u6838\u5fc3\u7279\u6027\u7684\u5b8c\u6574\u6559\u7a0b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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