{"id":307062,"date":"2024-05-20T20:26:05","date_gmt":"2024-05-20T12:26:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/307062.html"},"modified":"2024-05-20T20:26:19","modified_gmt":"2024-05-20T12:26:19","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-java-nio%e4%b8%ad%e7%9a%84file-channel-%e4%b8%8d%e6%94%af%e6%8c%81selector","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/307062.html","title":{"rendered":"\u4e3a\u4ec0\u4e48 java nio\u4e2d\u7684file channel \u4e0d\u652f\u6301selector"},"content":{"rendered":"

\"\u4e3a\u4ec0\u4e48<\/p>\n

FileChannel\u4e0d\u652f\u6301Selector\u7684\u4e3b\u8981\u539f\u56e0\u662fFileChannel\u4e0e\u78c1\u76d8I\/O\u7d27\u5bc6\u76f8\u5173\u3001\u800cSelector\u8bbe\u8ba1\u7528\u4e8e\u5904\u7406\u7f51\u7edc\u4e2d\u7684\u975e\u963b\u585eI\/O\u901a\u9053\u3002<\/strong> FileChannel\u4e3b\u8981\u5904\u7406\u6587\u4ef6\u6570\u636e\uff0c\u800c\u5728\u6587\u4ef6\u64cd\u4f5c\u4e2d\uff0c\u78c1\u76d8I\/O\u7684\u6570\u636e\u53ef\u7528\u6027\u901a\u5e38\u662f\u786e\u5b9a\u7684\uff0c\u7cfb\u7edf\u8c03\u7528\u5f88\u5c11\u4f1a\u963b\u585e\u5230\u9700\u8981\u5f02\u6b65\u5904\u7406\u7684\u5730\u6b65\u3002\u8fd9\u4e0e\u7f51\u7edcI\/O\u4e0d\u540c\uff0c\u7f51\u7edcI\/O\u7531\u4e8e\u7f51\u7edc\u5ef6\u8fdf\u548c\u4e0d\u7a33\u5b9a\u6027\uff0c\u4f7f\u5f97\u975e\u963b\u585eI\/O\u548c\u591a\u8def\u590d\u7528\u6210\u4e3a\u63d0\u5347\u6027\u80fd\u548c\u8d44\u6e90\u5229\u7528\u7387\u7684\u5173\u952e\u6280\u672f\u3002<\/p>\n<\/p>\n

\u4e00\u3001FILECHANNEL\u4e0eSELECTOR\u7684\u8bbe\u8ba1\u539f\u7406<\/h3>\n<\/p>\n

FileChannel\u662fJAVA NIO\u4e2d\u7684\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u4e3b\u8981\u7528\u4e8e\u5bf9\u6587\u4ef6\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u5b83\u63d0\u4f9b\u4e86\u5185\u5b58\u6620\u5c04\u3001\u6587\u4ef6\u9501\u5b9a\u7b49\u9ad8\u7ea7\u529f\u80fd\u3002\u76f8\u6bd4\u4f20\u7edf\u7684\u6587\u4ef6I\/O\u6d41\uff08\u4f8b\u5982FileInputStream\u548cFileOutputStream\uff09\uff0cFileChannel\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u6570\u636e\u64cd\u4f5c\u65b9\u5f0f\uff0c\u4f8b\u5982\u53ef\u4ee5\u76f4\u63a5\u5c06\u6570\u636e\u7f13\u51b2\u533a\u4e0e\u6587\u4ef6\u7cfb\u7edf\u7684\u67d0\u4e2a\u533a\u57df\u6620\u5c04\u8d77\u6765\u3002<\/p>\n<\/p>\n

\u800cSelector\u662fJava NIO\u4e2d\u7684\u53e6\u4e00\u4e2a\u5173\u952e\u7ec4\u4ef6\uff0c\u5b83\u53ef\u4ee5\u68c0\u6d4b\u4e00\u4e2a\u6216\u591a\u4e2aNIO\u901a\u9053\uff0c\u5e76\u80fd\u77e5\u6653\u901a\u9053\u662f\u5426\u4e3a\u67d0\u4e2a\u4e8b\u4ef6\u505a\u597d\u51c6\u5907\u3002\u8fd9\u6837\uff0c\u4e00\u4e2a\u5355\u72ec\u7684\u7ebf\u7a0b\u53ef\u4ee5\u7ba1\u7406\u591a\u4e2a\u901a\u9053\uff0c\u540c\u65f6\u68c0\u6d4b\u901a\u9053\u4e0a\u7684\u4e8b\u4ef6\uff0c\u4e3b\u8981\u7528\u4e8e\u7f51\u7edcI\/O\uff0c\u5982SocketChannel\u3002<\/p>\n<\/p>\n

\u4f7f\u7528Selector\u53ef\u4ee5\u5b9e\u73b0\u975e\u963b\u585e\u7684I\/O\u64cd\u4f5c<\/strong>\uff0c\u8fd9\u662f\u56e0\u4e3a\u7f51\u7edc\u64cd\u4f5c\u901a\u5e38\u4e0d\u53ef\u9884\u77e5\u548c\u4e0d\u7a33\u5b9a\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u963b\u585e\u548c\u8d44\u6e90\u6d6a\u8d39\u3002\u901a\u8fc7Selector\uff0c\u53ef\u4ee5\u5728\u5355\u4e2a\u7ebf\u7a0b\u4e2d\u76d1\u542c\u591a\u4e2a\u8fde\u63a5\u7684\u4e8b\u4ef6\uff0c\u63d0\u9ad8\u7cfb\u7edf\u5904\u7406\u7684\u6548\u7387\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u78c1\u76d8I\/O\u4e0e\u7f51\u7edcI\/O\u7684\u533a\u522b<\/h3>\n<\/p>\n

\u8ba9\u6211\u4eec\u5148\u6765\u770b\u770b\u78c1\u76d8I\/O\u548c\u7f51\u7edcI\/O\u4e4b\u95f4\u7684\u4e00\u4e9b\u4e3b\u8981\u533a\u522b\u3002\u78c1\u76d8I\/O\u901a\u5e38\u6d89\u53ca\u5230\u6587\u4ef6\u7cfb\u7edf\u7684\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u5305\u62ec\u6587\u4ef6\u7684\u8bfb\u53d6\u3001\u5199\u5165\u3001\u67e5\u627e\u548c\u5220\u9664\u7b49\u3002\u800c\u7f51\u7edcI\/O\u5219\u6d89\u53ca\u5230\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u7684\u6570\u636e\uff0c\u5982\u4e0b\u8f7d\u6587\u4ef6\u3001\u6d4f\u89c8\u7f51\u9875\u3001\u6d41\u5a92\u4f53\u64ad\u653e\u7b49\u3002<\/p>\n<\/p>\n

\u78c1\u76d8I\/O\u901a\u5e38\u662f\u987a\u5e8f\u7684\uff0c\u5e76\u4e14\u8bbf\u95ee\u65f6\u95f4\u662f\u53ef\u9884\u6d4b\u7684<\/strong>\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u3002\u76f8\u53cd\uff0c\u7f51\u7edcI\/O\u5f80\u5f80\u662f\u975e\u5e38\u4e0d\u786e\u5b9a\u7684\uff0c\u56e0\u4e3a\u7f51\u7edc\u5ef6\u65f6\u548c\u4e22\u5305\u7b49\u56e0\u7d20\u90fd\u4f1a\u5f71\u54cd\u6570\u636e\u7684\u5230\u8fbe\u65f6\u95f4\u3002<\/p>\n<\/p>\n

\u56e0\u6b64\uff0c\u9488\u5bf9\u7f51\u7edcI\/O\u7684\u8bbe\u8ba1\u9700\u8981\u4fa7\u91cd\u4e8e\u5f02\u6b65\u5904\u7406\u548c\u4e8b\u4ef6\u901a\u77e5\uff0c\u800cSelector\u7684\u8bbe\u8ba1\u6b63\u662f\u7b26\u5408\u8fd9\u79cd\u9700\u6c42\u3002Selector\u80fd\u591f\u540c\u65f6\u76d1\u63a7\u591a\u4e2a\u901a\u9053\u7684\u72b6\u6001\uff0c\u4e00\u65e6\u67d0\u4e2a\u901a\u9053\u51c6\u5907\u5c31\u7eea\uff0c\u4fbf\u80fd\u7acb\u523b\u5bf9\u5176\u8fdb\u884c\u5904\u7406\uff0c\u5927\u5e45\u5ea6\u63d0\u9ad8\u591a\u8fde\u63a5\u4e0b\u7684\u5904\u7406\u80fd\u529b\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u6587\u4ef6\u7cfb\u7edf\u7684\u540c\u6b65\u6027\u4e0e\u7f51\u7edc\u7684\u5f02\u6b65\u6027<\/h3>\n<\/p>\n

\u6765\u6df1\u5165\u63a2\u8ba8\u6587\u4ef6\u7cfb\u7edf\u7684\u540c\u6b65\u6027\u3002\u5f53\u6211\u4eec\u6267\u884c\u78c1\u76d8\u4e0a\u7684\u6587\u4ef6\u64cd\u4f5c\u65f6\uff0c\u4f8b\u5982\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u6216\u5411\u6587\u4ef6\u5199\u5165\u6570\u636e\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u5927\u90e8\u5206\u65f6\u95f4\u662f\u540c\u6b65\u7684\u3002\u64cd\u4f5c\u7cfb\u7edf\u901a\u5e38\u4f1a\u4fdd\u8bc1\u5728\u8fdb\u884c\u4e0b\u4e00\u4e2a\u64cd\u4f5c\u4e4b\u524d\uff0c\u5f53\u524d\u7684\u64cd\u4f5c\u5df2\u7ecf\u5b8c\u6210\u3002\u8fd9\u79cd\u53ef\u9884\u6d4b\u6027\u610f\u5473\u7740\uff0c\u6587\u4ef6\u7cfb\u7edf\u7684\u64cd\u4f5c\u5f88\u5c11\u9700\u8981\u975e\u963b\u585e\u6216\u591a\u8def\u590d\u7528\u7684\u7279\u6027\u3002<\/p>\n<\/p>\n

\u7136\u800c\uff0c\u5f53\u6d89\u53ca\u5230\u7f51\u7edc\u64cd\u4f5c\u65f6\uff0c\u60c5\u51b5\u5c31\u5927\u4e0d\u76f8\u540c\u4e86\u3002\u7f51\u7edc\u901a\u4fe1\u53ef\u80fd\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u6bd4\u5982\u7f51\u7edc\u62e5\u5835\u3001\u6570\u636e\u5305\u4e22\u5931\u7b49\uff0c\u8fd9\u4f7f\u5f97\u7f51\u7edc\u64cd\u4f5c\u7684\u7ed3\u679c\u901a\u5e38\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u5e76\u53ef\u80fd\u5bfc\u81f4\u7ebf\u7a0b\u963b\u585e\uff0c\u7b49\u5f85\u7f51\u7edc\u54cd\u5e94\u3002\u5728\u8fd9\u79cd\u60c5\u5883\u4e0b\uff0c\u975e\u963b\u585eI\/O \u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e0d\u9700\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u5373\u53ef\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f\u5176\u4ed6\u90e8\u5206\u7684\u80fd\u529b\u3002<\/p>\n<\/p>\n

\u7f51\u7edc\u7684\u5f02\u6b65\u6027\u8981\u6c42\u6570\u636e\u7684\u8bfb\u5199\u80fd\u591f\u5728\u6ca1\u6709\u6570\u636e\u6d41\u65f6\u7acb\u5373\u8fd4\u56de\uff0c\u800c\u540e\u518d\u901a\u8fc7\u4e8b\u4ef6\u901a\u77e5\u673a\u5236\u544a\u77e5\u5e94\u7528\u7a0b\u5e8f\u6570\u636e\u5df2\u51c6\u5907\u597d<\/strong>\uff0c\u8fd9\u6837\u7a0b\u5e8f\u5c31\u4e0d\u4f1a\u5728\u7b49\u5f85\u6570\u636e\u65f6\u6d6a\u8d39\u8d44\u6e90\u3002\u8fd9\u4e5f\u662fSelector\u5b58\u5728\u7684\u7406\u7531\u4e4b\u4e00\uff0c\u5b83\u53ef\u4ee5\u8ba9\u4e00\u4e2a\u7ebf\u7a0b\u9ad8\u6548\u5730\u5904\u7406\u591a\u4e2a\u7f51\u7edc\u8fde\u63a5\uff0c\u800c\u65e0\u987b\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u5206\u914d\u5355\u72ec\u7684\u7ebf\u7a0b\u3002<\/p>\n<\/p>\n

\u56db\u3001JAVA NIO\u7684\u901a\u9053\u4e0e\u963b\u585e\u6a21\u5f0f<\/h3>\n<\/p>\n

Java NIO\u7684\u901a\u9053\uff08Channel\uff09\u53ef\u4ee5\u5904\u4e8e\u963b\u585e\u6a21\u5f0f\u6216\u8005\u975e\u963b\u585e\u6a21\u5f0f\u3002\u5728\u963b\u585e\u6a21\u5f0f\u4e0b\uff0c\u5982\u679c\u4e00\u4e2a\u7ebf\u7a0b\u8c03\u7528\u4e86\u67d0\u4e2a\u901a\u9053\u7684\u8bfb\u6216\u5199\u65b9\u6cd5\uff0c\u8fd9\u4e2a\u8c03\u7528\u5c31\u4f1a\u963b\u585e\uff0c\u76f4\u5230\u64cd\u4f5c\u5b8c\u6210\u3002\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b\uff0c\u5982\u679c\u8bfb\u6216\u5199\u7acb\u5373\u65e0\u6cd5\u8fdb\u884c\uff0c\u8bfb\u6216\u5199\u65b9\u6cd5\u5c06\u8fd4\u56de\u3002<\/p>\n<\/p>\n

FileChannel\u662f\u4e00\u79cd\u65e2\u53ef\u4ee5\u5de5\u4f5c\u5728\u963b\u585e\u6a21\u5f0f\uff0c\u4e5f\u53ef\u4ee5\u5de5\u4f5c\u5728\u975e\u963b\u585e\u6a21\u5f0f\u4e0b\u7684\u901a\u9053<\/strong>\u3002\u7136\u800c\uff0cFileChannel\u7684\u975e\u963b\u585e\u6a21\u5f0f\u5e76\u4e0d\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u4e0eSelector\u4e00\u8d77\u4f7f\u7528\u3002\u56e0\u4e3a\u5373\u4f7f\u5728\u975e\u963b\u585e\u6a21\u5f0f\uff0c\u6587\u4ef6\u901a\u9053\u7684\u64cd\u4f5c\u4e5f\u51e0\u4e4e\u603b\u662f\u4f1a\u7acb\u5373\u8fd4\u56de\uff0c\u5e76\u4e0d\u9700\u8981\u901a\u8fc7\u591a\u8def\u590d\u7528\u673a\u5236\u53bb\u76d1\u542c\u591a\u4e2a\u901a\u9053\u7684\u4e8b\u4ef6\uff0c\u8fd9\u4f7f\u5f97Selector\u5bf9\u4e8eFileChannel\u6765\u8bf4\u5e76\u975e\u5fc5\u9700\u3002<\/p>\n<\/p>\n

\u4e94\u3001JAVA NIO\u7684\u672a\u6765\u53d1\u5c55<\/h3>\n<\/p>\n

\u5c3d\u7ba1\u5f53\u524dJava NIO\u7684FileChannel\u4e0d\u652f\u6301Selector\uff0c\u672a\u6765\u7684\u7248\u672c\u4e2d\u53ef\u80fd\u4f1a\u63d0\u4f9b\u7c7b\u4f3c\u529f\u80fd\u6216\u8005\u5176\u4ed6\u7684\u9ad8\u6548\u6587\u4ef6\u5904\u7406\u673a\u5236\u3002\u6280\u672f\u7684\u53d1\u5c55\u603b\u662f\u4e3a\u4e86\u89e3\u51b3\u73b0\u5b9e\u4e16\u754c\u7684\u95ee\u9898\uff0c\u968f\u7740\u786c\u4ef6\u548c\u8f6f\u4ef6\u73af\u5883\u7684\u53d8\u5316\uff0c\u603b\u6709\u53ef\u80fd\u51fa\u73b0\u65b0\u7684\u9700\u6c42\u548c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n

\u5728\u7b49\u5f85\u672a\u6765\u53ef\u80fd\u7684\u53d1\u5c55\u7684\u540c\u65f6\uff0c\u7a0b\u5e8f\u5458\u53ef\u4ee5\u7ee7\u7eed\u63a2\u7d22\u73b0\u6709Java NIO\u63d0\u4f9b\u7684\u5404\u79cd\u529f\u80fd\uff0c\u4f8b\u5982SocketChannel\u548cAsynchronousFileChannel\uff0c\u5b83\u4eec\u53ef\u4ee5\u4e3a\u7279\u5b9a\u7684I\/O\u64cd\u4f5c\u63d0\u4f9b\u5f02\u6b65\u5904\u7406\u80fd\u529b\u3002\u901a\u8fc7\u6df1\u5165\u7814\u7a76\u548c\u5b9e\u8df5\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5176\u5185\u90e8\u5de5\u4f5c\u673a\u5236\uff0c\u5e76\u5728\u9002\u5f53\u7684\u573a\u666f\u4e0b\u53d1\u6325\u5b83\u4eec\u7684\u6700\u5927\u4f18\u52bf\u3002<\/p>\n<\/p>\n

\u603b\u4e4b\uff0cFileChannel\u8bbe\u8ba1\u4e4b\u521d\u5c31\u6ca1\u6709\u8003\u8651\u4e0eSelector\u7ed3\u5408\u7684\u9700\u6c42\uff0c\u56e0\u4e3a\u5728\u6587\u4ef6I\/O\u9886\u57df\uff0c\u8fd9\u79cd\u7ed3\u5408\u5e76\u6ca1\u6709\u5e26\u6765\u592a\u591a\u7684\u5b9e\u9645\u4f18\u52bf\u3002\u7ed9\u5b9a\u78c1\u76d8\u64cd\u4f5c\u7684\u540c\u6b65\u6027\u548c\u53ef\u9884\u6d4b\u6027\uff0c\u4ee5\u53ca\u6587\u4ef6\u8bfb\u5199\u7684\u5373\u65f6\u6027\uff0c\u91c7\u7528\u975e\u963b\u585e\u548c\u4e8b\u4ef6\u901a\u77e5\u6a21\u578b\u5904\u7406\u6587\u4ef6\u7cfb\u7edf\u4e8b\u4ef6\u7684\u5fc5\u8981\u6027\u8fdc\u5c0f\u4e8e\u5904\u7406\u7f51\u7edc\u4e8b\u4ef6\u3002\u56e0\u6b64\uff0c\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e3a\u4f55Java NIO\u4e2d\u7684FileChannel\u4e0d\u652f\u6301Selector\u7684\u539f\u56e0\uff0c\u8fd9\u662f\u4e24\u8005\u8bbe\u8ba1\u54f2\u5b66\u548c\u9002\u7528\u573a\u666f\u7684\u81ea\u7136\u7ed3\u679c\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u4e3a\u4ec0\u4e48 java nio\u4e2d\u7684file channel \u4e0d\u652f\u6301selector\uff1f<\/strong><\/p>\n

    \n
  1. \n

    \u4ec0\u4e48\u662fjava nio\u4e2d\u7684file channel\uff1f
    \nJava NIO\uff08New I\/O\uff09\u662fJava\u57281.4\u7248\u672c\u4e2d\u5f15\u5165\u7684\u4e00\u5957\u65b0\u7684I\/O API\u3002\u5176\u4e2d\u7684file channel\u662f\u7528\u4e8e\u8bfb\u53d6\u548c\u5199\u5165\u6587\u4ef6\u7684\u901a\u9053\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u9ad8\u6548\u3001\u975e\u963b\u585e\u7684\u65b9\u5f0f\u6765\u5904\u7406\u6587\u4ef6\u7684I\/O\u64cd\u4f5c\u3002<\/p>\n<\/li>\n

  2. \n

    \u4ec0\u4e48\u662fselector\uff1f
    \nSelector\u662fNIO\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u7528\u4e8e\u5b9e\u73b0\u975e\u963b\u585e\u7684I\/O\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u68c0\u6d4b\u591a\u4e2a\u901a\u9053\u7684\u4e8b\u4ef6\uff0c\u5e76\u4e14\u901a\u8fc7\u5355\u4e2a\u7ebf\u7a0b\u6765\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<\/li>\n

  3. \n

    \u4e3a\u4ec0\u4e48file channel\u4e0d\u652f\u6301selector\uff1f
    \nFile channel\u662f\u4e00\u79cd\u963b\u585e\u6a21\u5f0f\u7684\u901a\u9053\uff0c\u5b83\u53ea\u80fd\u5728IO\u64cd\u4f5c\u4e0a\u963b\u585e\uff0c\u800c\u4e0d\u80fd\u963b\u585e\u5728\u68c0\u6d4b\u4e8b\u4ef6\u4e0a\u3002\u53e6\u5916\uff0c\u6587\u4ef6I\/O\u901a\u5e38\u4e0d\u4f1a\u53d1\u751f\u592a\u591a\u7684\u4e8b\u4ef6\uff0c\u56e0\u6b64\u4f7f\u7528selector\u6765\u5904\u7406\u6587\u4ef6channel\u5e76\u4e0d\u4f1a\u5e26\u6765\u592a\u591a\u597d\u5904\u3002\u6240\u4ee5\uff0cJava NIO\u4e2d\u7684file channel\u5e76\u6ca1\u6709\u652f\u6301selector\u7684\u529f\u80fd\u3002\u4f46\u662f\uff0cNIO\u4e2d\u7684socket channel\u548cServerSocket channel\u7b49\u7f51\u7edcI\/O\u901a\u9053\u662f\u652f\u6301selector\u7684\uff0c\u56e0\u4e3a\u7f51\u7edcI\/O\u901a\u5e38\u4f1a\u6709\u5927\u91cf\u7684\u5e76\u53d1\u4e8b\u4ef6\u9700\u5904\u7406\u3002<\/p>\n<\/li>\n

  4. \n

    \u662f\u5426\u6709\u5176\u4ed6\u66ff\u4ee3\u65b9\u6848\u6765\u5b9e\u73b0\u975e\u963b\u585e\u7684\u6587\u4ef6I\/O\u64cd\u4f5c\uff1f
    \n\u662f\u7684\uff0c\u9664\u4e86\u4f7f\u7528selector\u4e4b\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528java.nio.file\u5305\u4e0b\u7684WatchService\u6765\u5b9e\u73b0\u975e\u963b\u585e\u65b9\u5f0f\u5bf9\u6587\u4ef6\u7684\u8bfb\u5199\u76d1\u542c\u3002WatchService\u63d0\u4f9b\u4e86\u4e00\u79cd\u76d1\u6d4b\u6587\u4ef6\u7cfb\u7edf\u53d8\u5316\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5728\u6587\u4ef6\u53d1\u751f\u53d8\u5316\u65f6\u53ca\u65f6\u5f97\u5230\u901a\u77e5\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u6587\u4ef6\u7684\u975e\u963b\u585e\u8bfb\u5199\u64cd\u4f5c\u3002\u6240\u4ee5\uff0c\u5982\u679c\u9700\u8981\u5b9e\u73b0\u975e\u963b\u585e\u7684\u6587\u4ef6I\/O\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528WatchService\u3002<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"FileChannel\u4e0d\u652f\u6301Selector\u7684\u4e3b\u8981\u539f\u56e0\u662fFileChannel\u4e0e\u78c1\u76d8I\/O\u7d27\u5bc6\u76f8\u5173\u3001\u800cSele […]","protected":false},"author":3,"featured_media":307076,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/307062"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=307062"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/307062\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/307076"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=307062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=307062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=307062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}