{"id":1293,"date":"2023-06-27T13:54:27","date_gmt":"2023-06-27T05:54:27","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1293"},"modified":"2023-06-27T13:54:27","modified_gmt":"2023-06-27T05:54:27","slug":"%e9%9d%a2%e8%af%95%e5%ae%98-%e6%9c%89%e4%ba%86%e8%a7%a3%e8%bf%87%e7%ba%bf%e7%a8%8b%e7%bb%84%e5%92%8c%e7%ba%bf%e7%a8%8b%e4%bc%98%e5%85%88%e7%ba%a7%e5%90%97","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/%e9%9d%a2%e8%af%95%e5%ae%98-%e6%9c%89%e4%ba%86%e8%a7%a3%e8%bf%87%e7%ba%bf%e7%a8%8b%e7%bb%84%e5%92%8c%e7%ba%bf%e7%a8%8b%e4%bc%98%e5%85%88%e7%ba%a7%e5%90%97\/","title":{"rendered":"\u9762\u8bd5\u5b98: \u6709\u4e86\u89e3\u8fc7\u7ebf\u7a0b\u7ec4\u548c\u7ebf\u7a0b\u4f18\u5148\u7ea7\u5417"},"content":{"rendered":"
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<\/span>\u9762\u8bd5\u5b98: \u6709\u4e86\u89e3\u8fc7\u7ebf\u7a0b\u7ec4\u548c\u7ebf\u7a0b\u4f18\u5148\u7ea7\u5417<\/span><\/span><\/h1>\n

<\/span>\u524d\u8a00<\/span><\/span><\/h2>\n

\u76ee\u524d\u6b63\u5728\u51fa\u4e00\u4e2aJava\u591a\u7ebf\u7a0b\u4e13\u9898<\/code>\u957f\u671f\u7cfb\u5217\u6559\u7a0b\uff0c\u4ece\u5165\u95e8\u5230\u8fdb\u9636\u542b\u6e90\u7801\u89e3\u8bfb<\/code>, \u7bc7\u5e45\u4f1a\u8f83\u591a, \u559c\u6b22\u7684\u8bdd\uff0c\u7ed9\u4e2a\u5173\u6ce8\u2764\ufe0f ~<\/p>\n

<\/span>\u4ec0\u4e48\u662f\u7ebf\u7a0b\u7ec4<\/span><\/span><\/h2>\n

\u5728Java\u4e2d\uff0c\u7ebf\u7a0b\u7ec4\u4f7f\u7528ThreadGroup<\/code>\u8868\u793a\uff0c\u5176\u4e2dThread<\/code>\u5b58\u4e8e\u7ebf\u7a0b\u7ec4\u4e2d\uff0c\u4ece\u5b57\u9762\u610f\u601d\u4e5f\u5f88\u597d\u7406\u89e3\u3002\u5728\u521b\u5efa\u7ebf\u7a0b\u8fc7\u7a0b\u4e2d\uff0cThread<\/code>\u4e0d\u80fd\u72ec\u7acb\u4e8e\u7ebf\u7a0b\u7ec4\u4e4b\u5916,\u4e4b\u524d\u6211\u4eec\u5b66\u4e60\u521b\u5efa\u7ebf\u7a0b\u65f6\uff0c\u6ca1\u6709\u6307\u5b9a\u7ebf\u7a0b\u7ec4\uff0c\u56e0\u4e3a\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u4f1a\u5c06\u5f53\u524d\u7684\u7ebf\u7a0b\u73af\u5883\u4f5c\u4e3a\u7ebf\u7a0b\u7ec4, \u53ef\u4ee5\u901a\u8fc7Thread.currentThread().getThreadGroup()<\/code>\u83b7\u53d6\u7ebf\u7a0b\u7ec4,\u7ebf\u7a0b\u7ec4\u53ef\u4ee5\u65b9\u4fbf\u7ba1\u7406\u6211\u4eec\u7684\u7ebf\u7a0b\uff0c\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u9ad8\u4e86\u5b89\u5168\u6027<\/p>\n

<\/span>public<\/span> final<\/span> void<\/span> checkAccess<\/span>()<\/span> <\/span>{
    SecurityManager security = System.getSecurityManager();
    if<\/span> (security != null<\/span>) {
        security.checkAccess(this<\/span>);
    }
}
<\/code><\/pre>\n
\u5b83\u8c03\u7528\u4e86\u4e00\u4e2aSecurityManager<\/code>, \u5b83\u662fJava\u7684\u5b89\u5168\u7ba1\u7406\u5668\uff0c\u5b83\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u5728\u6267\u884c\u4e00\u4e2a\u53ef\u80fd\u4e0d\u5b89\u5168\u6216\u654f\u611f\u7684\u64cd\u4f5c\u524d\u786e\u5b9a\u8be5\u64cd\u4f5c\u662f\u4ec0\u4e48\uff0c\u4ee5\u53ca\u662f\u5426\u662f\u5728\u5141\u8bb8\u6267\u884c\u8be5\u64cd\u4f5c\u7684\u5b89\u5168\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u5b83\u3002\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5141\u8bb8\u6216\u4e0d\u5141\u8bb8\u8be5\u64cd\u4f5c\u3002\u603b\u7684\u6765\u8bf4\u5c31\u662f\u4fdd\u8bc1\u5b89\u5168\u6027\u3002<\/p>\n
\u901a\u8fc7\u4e0a\u9762\u7684\u4e86\u89e3\uff0c\u6211\u4eec\u5e94\u8be5\u77e5\u9053\u4e3a\u4ec0\u4e48\u8981\u7528\u8fd9\u79cd\u6811\u72b6\u7ed3\u6784\u4e86\u3002\u5b83\u90fd\u662f\u4e00\u5c42\u4e00\u5c42\u7ea7\u522b\u7684\u63a7\u5236\uff0c\u8fd9\u4e48\u505a\u65b9\u4fbf\u53bb\u7ba1\u7406\uff0c\u63d0\u9ad8\u5b89\u5168\u6027\uff0c\u51fa\u4e86\u95ee\u9898\u4e5f\u80fd\u5f88\u5feb\u7684\u5b9a\u4f4d\u5230\u3002\u5c31\u50cf\u516c\u53f8\u7684\u4eba\u5458\u7ec4\u7ec7\u67b6\u6784\u4e00\u6837\uff0c\u4e00\u5207\u90fd\u662f\u4e3a\u4e86\u7ba1\u7406\u597d\u516c\u53f8\u3002<\/p>\n
<\/span>\u7ed3\u675f\u8bed<\/span><\/span><\/h2>\n
\u672c\u7bc7\u5185\u5bb9\u5230\u8fd9\u91cc\u5c31\u7ed3\u675f\u4e86, \u5927\u5bb6\u81ea\u5df1\u4e00\u5b9a\u8981\u591a\u53bb\u7406\u89e3\uff0c\u4e0d\u8981\u53bb\u80cc, \u4e0b\u671f\u7ed9\u5927\u5bb6\u8bb2\u8bb2\u7ebf\u7a0b\u7684\u72b6\u6001<\/code>\u4ee5\u53ca\u5b83\u7684\u751f\u547d\u5468\u671f~<\/p>\n
<\/span>\u5f80\u671f\u5185\u5bb9\u63a8\u8350<\/span><\/span><\/h2>\n