{"id":2775,"date":"2023-07-07T16:26:32","date_gmt":"2023-07-07T08:26:32","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2775"},"modified":"2024-01-10T14:38:19","modified_gmt":"2024-01-10T06:38:19","slug":"java-nio%e6%b5%85%e6%9e%90","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/java-nio%e6%b5%85%e6%9e%90\/","title":{"rendered":"Java NIO\u6d45\u6790"},"content":{"rendered":"<div class=\"css-1yuhvjn\">\n<div class=\"css-376mun\">\n<div class=\"RichText ztext Post-RichText css-1g0fqss\">\n<p data-first-child=\"\" data-pid=\"M8E6MoDp\">NIO\uff08Non-blocking I\/O\uff0c\u5728Java\u9886\u57df\uff0c\u4e5f\u79f0\u4e3aNew 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data-pid=\"EzNAta6j\">\u6ce8\uff1a\u672c\u6587\u7684\u4ee3\u7801\u90fd\u662f\u4f2a\u4ee3\u7801\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u793a\u610f\uff0c\u4e0d\u53ef\u7528\u4e8e\u751f\u4ea7\u73af\u5883\u3002<\/p>\n<h1>\u4f20\u7edfBIO\u6a21\u578b\u5206\u6790<\/h1>\n<p data-pid=\"sgnkcdRa\">\u8ba9\u6211\u4eec\u5148\u56de\u5fc6\u4e00\u4e0b\u4f20\u7edf\u7684\u670d\u52a1\u5668\u7aef\u540c\u6b65\u963b\u585eI\/O\u5904\u7406\uff08\u4e5f\u5c31\u662fBIO\uff0cBlocking I\/O\uff09\u7684\u7ecf\u5178\u7f16\u7a0b\u6a21\u578b\uff1a<\/p>\n<div class=\"highlight\">\n<pre><code class=\"language-text\">{\n ExecutorService executor = Excutors.newFixedThreadPollExecutor(100);\/\/\u7ebf\u7a0b\u6c60\n\n ServerSocket serverSocket = new ServerSocket();\n serverSocket.bind(8088);\n while(!Thread.currentThread.isInturrupted()){\/\/\u4e3b\u7ebf\u7a0b\u6b7b\u5faa\u73af\u7b49\u5f85\u65b0\u8fde\u63a5\u5230\u6765\n Socket socket = serverSocket.accept();\n executor.submit(new ConnectIOnHandler(socket));\/\/\u4e3a\u65b0\u7684\u8fde\u63a5\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\n}\n\nclass ConnectIOnHandler extends Thread{\n    private Socket socket;\n    public ConnectIOnHandler(Socket socket){\n       this.socket = socket;\n    }\n    public void run(){\n      while(!Thread.currentThread.isInturrupted()&amp;&amp;!socket.isClosed()){\u6b7b\u5faa\u73af\u5904\u7406\u8bfb\u5199\u4e8b\u4ef6\n          String someThing = socket.read()....\/\/\u8bfb\u53d6\u6570\u636e\n          if(someThing!=null){\n             ......\/\/\u5904\u7406\u6570\u636e\n             socket.write()....\/\/\u5199\u6570\u636e\n          }\n\n      }\n    }\n}\n<\/code><\/pre>\n<\/div>\n<p data-pid=\"hIT3YZBU\">\u8fd9\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u6bcf\u8fde\u63a5\u6bcf\u7ebf\u7a0b\u7684\u6a21\u578b\uff0c\u4e4b\u6240\u4ee5\u4f7f\u7528\u591a\u7ebf\u7a0b\uff0c\u4e3b\u8981\u539f\u56e0\u5728\u4e8esocket.accept()\u3001socket.read()\u3001socket.write()\u4e09\u4e2a\u4e3b\u8981\u51fd\u6570\u90fd\u662f\u540c\u6b65\u963b\u585e\u7684\uff0c\u5f53\u4e00\u4e2a\u8fde\u63a5\u5728\u5904\u7406I\/O\u7684\u65f6\u5019\uff0c\u7cfb\u7edf\u662f\u963b\u585e\u7684\uff0c\u5982\u679c\u662f\u5355\u7ebf\u7a0b\u7684\u8bdd\u5fc5\u7136\u5c31\u6302\u6b7b\u5728\u90a3\u91cc\uff1b\u4f46CPU\u662f\u88ab\u91ca\u653e\u51fa\u6765\u7684\uff0c\u5f00\u542f\u591a\u7ebf\u7a0b\uff0c\u5c31\u53ef\u4ee5\u8ba9CPU\u53bb\u5904\u7406\u66f4\u591a\u7684\u4e8b\u60c5\u3002\u5176\u5b9e\u8fd9\u4e5f\u662f\u6240\u6709\u4f7f\u7528\u591a\u7ebf\u7a0b\u7684\u672c\u8d28\uff1a<\/p>\n<ol>\n<li data-pid=\"-_CVrtxl\">\u5229\u7528\u591a\u6838\u3002<\/li>\n<li 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data-pid=\"YuXj5uZi\">\u4e0b\u56fe\u662f\u51e0\u79cd\u5e38\u89c1I\/O\u6a21\u578b\u7684\u5bf9\u6bd4\uff1a<\/p>\n<figure><noscript><br \/>\n<img decoding=\"async\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-21-56\/2023070716215632324c0d0.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-rawwidth=\"973\" data-rawheight=\"586\" class=\"origin_image zh-lightbox-thumb lazyload\" width=\"973\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-21-56\/2023070716215632324c0d0.jpg\"><noscript><img decoding=\"async\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-21-56\/2023070716215632324c0d0.jpg\" data-rawwidth=\"973\" data-rawheight=\"586\" class=\"origin_image zh-lightbox-thumb\" width=\"973\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-21-56\/2023070716215632324c0d0.jpg\"><\/noscript><br \/>\n<\/noscript><br \/>\n<img decoding=\"async\" class=\"origin_image zh-lightbox-thumb lazy lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" width=\"973\" data-rawwidth=\"973\" data-rawheight=\"586\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" data-actualdata-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-original-token=\"v2-f47206d5b5e64448744b85eaf568f92d\"><noscript><img decoding=\"async\" class=\"origin_image zh-lightbox-thumb lazy\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" width=\"973\" data-rawwidth=\"973\" data-rawheight=\"586\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" data-actualsrc=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-20\/202307071622205f5f94d29.jpg\" data-original-token=\"v2-f47206d5b5e64448744b85eaf568f92d\"><\/noscript><\/figure>\n<p data-pid=\"t_iYk7ur\">\u4ee5socket.read()\u4e3a\u4f8b\u5b50\uff1a<\/p>\n<p data-pid=\"UZs7C_94\">\u4f20\u7edf\u7684BIO\u91cc\u9762socket.read()\uff0c\u5982\u679cTCP RecvBuffer\u91cc\u6ca1\u6709\u6570\u636e\uff0c\u51fd\u6570\u4f1a\u4e00\u76f4\u963b\u585e\uff0c\u76f4\u5230\u6536\u5230\u6570\u636e\uff0c\u8fd4\u56de\u8bfb\u5230\u7684\u6570\u636e\u3002<\/p>\n<p data-pid=\"KscxtdUC\">\u5bf9\u4e8eNIO\uff0c\u5982\u679cTCP RecvBuffer\u6709\u6570\u636e\uff0c\u5c31\u628a\u6570\u636e\u4ece\u7f51\u5361\u8bfb\u5230\u5185\u5b58\uff0c\u5e76\u4e14\u8fd4\u56de\u7ed9\u7528\u6237\uff1b\u53cd\u4e4b\u5219\u76f4\u63a5\u8fd4\u56de0\uff0c\u6c38\u8fdc\u4e0d\u4f1a\u963b\u585e\u3002<\/p>\n<p data-pid=\"KFmVzI1F\">\u6700\u65b0\u7684AIO(Async I\/O)\u91cc\u9762\u4f1a\u66f4\u8fdb\u4e00\u6b65\uff1a\u4e0d\u4f46\u7b49\u5f85\u5c31\u7eea\u662f\u975e\u963b\u585e\u7684\uff0c\u5c31\u8fde\u6570\u636e\u4ece\u7f51\u5361\u5230\u5185\u5b58\u7684\u8fc7\u7a0b\u4e5f\u662f\u5f02\u6b65\u7684\u3002<\/p>\n<p data-pid=\"uQMjH0Wg\">\u6362\u53e5\u8bdd\u8bf4\uff0cBIO\u91cc\u7528\u6237\u6700\u5173\u5fc3\u201c\u6211\u8981\u8bfb\u201d\uff0cNIO\u91cc\u7528\u6237\u6700\u5173\u5fc3\"\u6211\u53ef\u4ee5\u8bfb\u4e86\"\uff0c\u5728AIO\u6a21\u578b\u91cc\u7528\u6237\u66f4\u9700\u8981\u5173\u6ce8\u7684\u662f\u201c\u8bfb\u5b8c\u4e86\u201d\u3002<\/p>\n<p data-pid=\"3GDmQ0dK\">NIO\u4e00\u4e2a\u91cd\u8981\u7684\u7279\u70b9\u662f\uff1asocket\u4e3b\u8981\u7684\u8bfb\u3001\u5199\u3001\u6ce8\u518c\u548c\u63a5\u6536\u51fd\u6570\uff0c\u5728\u7b49\u5f85\u5c31\u7eea\u9636\u6bb5\u90fd\u662f\u975e\u963b\u585e\u7684\uff0c\u771f\u6b63\u7684I\/O\u64cd\u4f5c\u662f\u540c\u6b65\u963b\u585e\u7684\uff08\u6d88\u8017CPU\u4f46\u6027\u80fd\u975e\u5e38\u9ad8\uff09\u3002<\/p>\n<h2>\u5982\u4f55\u7ed3\u5408\u4e8b\u4ef6\u6a21\u578b\u4f7f\u7528NIO\u540c\u6b65\u975e\u963b\u585e\u7279\u6027<\/h2>\n<p data-pid=\"yvCXdGco\">\u56de\u5fc6BIO\u6a21\u578b\uff0c\u4e4b\u6240\u4ee5\u9700\u8981\u591a\u7ebf\u7a0b\uff0c\u662f\u56e0\u4e3a\u5728\u8fdb\u884cI\/O\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u4e00\u662f\u6ca1\u6709\u529e\u6cd5\u77e5\u9053\u5230\u5e95\u80fd\u4e0d\u80fd\u5199\u3001\u80fd\u4e0d\u80fd\u8bfb\uff0c\u53ea\u80fd\"\u50bb\u7b49\"\uff0c\u5373\u4f7f\u901a\u8fc7\u5404\u79cd\u4f30\u7b97\uff0c\u7b97\u51fa\u6765\u64cd\u4f5c\u7cfb\u7edf\u6ca1\u6709\u80fd\u529b\u8fdb\u884c\u8bfb\u5199\uff0c\u4e5f\u6ca1\u6cd5\u5728socket.read()\u548csocket.write()\u51fd\u6570\u4e2d\u8fd4\u56de\uff0c\u8fd9\u4e24\u4e2a\u51fd\u6570\u65e0\u6cd5\u8fdb\u884c\u6709\u6548\u7684\u4e2d\u65ad\u3002\u6240\u4ee5\u9664\u4e86\u591a\u5f00\u7ebf\u7a0b\u53e6\u8d77\u7089\u7076\uff0c\u6ca1\u6709\u597d\u7684\u529e\u6cd5\u5229\u7528CPU\u3002<\/p>\n<p data-pid=\"Lrl5Xp9o\">NIO\u7684\u8bfb\u5199\u51fd\u6570\u53ef\u4ee5\u7acb\u523b\u8fd4\u56de\uff0c\u8fd9\u5c31\u7ed9\u4e86\u6211\u4eec\u4e0d\u5f00\u7ebf\u7a0b\u5229\u7528CPU\u7684\u6700\u597d\u673a\u4f1a\uff1a\u5982\u679c\u4e00\u4e2a\u8fde\u63a5\u4e0d\u80fd\u8bfb\u5199\uff08socket.read()\u8fd4\u56de0\u6216\u8005socket.write()\u8fd4\u56de0\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u8fd9\u4ef6\u4e8b\u8bb0\u4e0b\u6765\uff0c\u8bb0\u5f55\u7684\u65b9\u5f0f\u901a\u5e38\u662f\u5728Selector\u4e0a\u6ce8\u518c\u6807\u8bb0\u4f4d\uff0c\u7136\u540e\u5207\u6362\u5230\u5176\u5b83\u5c31\u7eea\u7684\u8fde\u63a5\uff08channel\uff09\u7ee7\u7eed\u8fdb\u884c\u8bfb\u5199\u3002<\/p>\n<p data-pid=\"KUvNr-7C\">\u4e0b\u9762\u5177\u4f53\u770b\u4e0b\u5982\u4f55\u5229\u7528\u4e8b\u4ef6\u6a21\u578b\u5355\u7ebf\u7a0b\u5904\u7406\u6240\u6709I\/O\u8bf7\u6c42\uff1a<\/p>\n<p data-pid=\"kh5foex-\">NIO\u7684\u4e3b\u8981\u4e8b\u4ef6\u6709\u51e0\u4e2a\uff1a\u8bfb\u5c31\u7eea\u3001\u5199\u5c31\u7eea\u3001\u6709\u65b0\u8fde\u63a5\u5230\u6765\u3002<\/p>\n<p data-pid=\"DQa-F8Oc\">\u6211\u4eec\u9996\u5148\u9700\u8981\u6ce8\u518c\u5f53\u8fd9\u51e0\u4e2a\u4e8b\u4ef6\u5230\u6765\u7684\u65f6\u5019\u6240\u5bf9\u5e94\u7684\u5904\u7406\u5668\u3002\u7136\u540e\u5728\u5408\u9002\u7684\u65f6\u673a\u544a\u8bc9\u4e8b\u4ef6\u9009\u62e9\u5668\uff1a\u6211\u5bf9\u8fd9\u4e2a\u4e8b\u4ef6\u611f\u5174\u8da3\u3002\u5bf9\u4e8e\u5199\u64cd\u4f5c\uff0c\u5c31\u662f\u5199\u4e0d\u51fa\u53bb\u7684\u65f6\u5019\u5bf9\u5199\u4e8b\u4ef6\u611f\u5174\u8da3\uff1b\u5bf9\u4e8e\u8bfb\u64cd\u4f5c\uff0c\u5c31\u662f\u5b8c\u6210\u8fde\u63a5\u548c\u7cfb\u7edf\u6ca1\u6709\u529e\u6cd5\u627f\u8f7d\u65b0\u8bfb\u5165\u7684\u6570\u636e\u7684\u65f6\uff1b\u5bf9\u4e8eaccept\uff0c\u4e00\u822c\u662f\u670d\u52a1\u5668\u521a\u542f\u52a8\u7684\u65f6\u5019\uff1b\u800c\u5bf9\u4e8econnect\uff0c\u4e00\u822c\u662fconnect\u5931\u8d25\u9700\u8981\u91cd\u8fde\u6216\u8005\u76f4\u63a5\u5f02\u6b65\u8c03\u7528connect\u7684\u65f6\u5019\u3002<\/p>\n<p data-pid=\"rHCnuXWC\">\u5176\u6b21\uff0c\u7528\u4e00\u4e2a\u6b7b\u5faa\u73af\u9009\u62e9\u5c31\u7eea\u7684\u4e8b\u4ef6\uff0c\u4f1a\u6267\u884c\u7cfb\u7edf\u8c03\u7528\uff08Linux 2.6\u4e4b\u524d\u662fselect\u3001poll\uff0c2.6\u4e4b\u540e\u662fepoll\uff0cWindows\u662fIOCP\uff09\uff0c\u8fd8\u4f1a\u963b\u585e\u7684\u7b49\u5f85\u65b0\u4e8b\u4ef6\u7684\u5230\u6765\u3002\u65b0\u4e8b\u4ef6\u5230\u6765\u7684\u65f6\u5019\uff0c\u4f1a\u5728selector\u4e0a\u6ce8\u518c\u6807\u8bb0\u4f4d\uff0c\u6807\u793a\u53ef\u8bfb\u3001\u53ef\u5199\u6216\u8005\u6709\u8fde\u63a5\u5230\u6765\u3002<\/p>\n<p data-pid=\"x8itqX3F\">\u6ce8\u610f\uff0cselect\u662f\u963b\u585e\u7684\uff0c\u65e0\u8bba\u662f\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u7684\u901a\u77e5\uff08epoll\uff09\u8fd8\u662f\u4e0d\u505c\u7684\u8f6e\u8be2(select\uff0cpoll)\uff0c\u8fd9\u4e2a\u51fd\u6570\u662f\u963b\u585e\u7684\u3002\u6240\u4ee5\u4f60\u53ef\u4ee5\u653e\u5fc3\u5927\u80c6\u5730\u5728\u4e00\u4e2awhile(true)\u91cc\u9762\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u800c\u4e0d\u7528\u62c5\u5fc3CPU\u7a7a\u8f6c\u3002<\/p>\n<p data-pid=\"jOEuhV1s\">\u6240\u4ee5\u6211\u4eec\u7684\u7a0b\u5e8f\u5927\u6982\u7684\u6a21\u6837\u662f\uff1a<\/p>\n<div class=\"highlight\">\n<pre><code class=\"language-text\">   interface ChannelHandler{\n      void channelReadable(Channel channel);\n      void channelWritable(Channel channel);\n   }\n   class Channel{\n     Socket socket;\n     Event event;\/\/\u8bfb\uff0c\u5199\u6216\u8005\u8fde\u63a5\n   }\n\n   \/\/IO\u7ebf\u7a0b\u4e3b\u5faa\u73af:\n   class IoThread extends Thread{\n   public void run(){\n   Channel channel;\n   while(channel=Selector.select()){\/\/\u9009\u62e9\u5c31\u7eea\u7684\u4e8b\u4ef6\u548c\u5bf9\u5e94\u7684\u8fde\u63a5\n      if(channel.event==accept){\n         registerNewChannelHandler(channel);\/\/\u5982\u679c\u662f\u65b0\u8fde\u63a5\uff0c\u5219\u6ce8\u518c\u4e00\u4e2a\u65b0\u7684\u8bfb\u5199\u5904\u7406\u5668\n      }\n      if(channel.event==write){\n         getChannelHandler(channel).channelWritable(channel);\/\/\u5982\u679c\u53ef\u4ee5\u5199\uff0c\u5219\u6267\u884c\u5199\u4e8b\u4ef6\n      }\n      if(channel.event==read){\n          getChannelHandler(channel).channelReadable(channel);\/\/\u5982\u679c\u53ef\u4ee5\u8bfb\uff0c\u5219\u6267\u884c\u8bfb\u4e8b\u4ef6\n      }\n    }\n   }\n   Map&lt;Channel\uff0cChannelHandler&gt; handlerMap;\/\/\u6240\u6709channel\u7684\u5bf9\u5e94\u4e8b\u4ef6\u5904\u7406\u5668\n  }\n<\/code><\/pre>\n<\/div>\n<p data-pid=\"Cjabxw3D\">\u8fd9\u4e2a\u7a0b\u5e8f\u5f88\u7b80\u77ed\uff0c\u4e5f\u662f\u6700\u7b80\u5355\u7684Reactor\u6a21\u5f0f\uff1a\u6ce8\u518c\u6240\u6709\u611f\u5174\u8da3\u7684\u4e8b\u4ef6\u5904\u7406\u5668\uff0c\u5355\u7ebf\u7a0b\u8f6e\u8be2\u9009\u62e9\u5c31\u7eea\u4e8b\u4ef6\uff0c\u6267\u884c\u4e8b\u4ef6\u5904\u7406\u5668\u3002<\/p>\n<h2>\u4f18\u5316\u7ebf\u7a0b\u6a21\u578b<\/h2>\n<p data-pid=\"nhd6-kYS\">\u7531\u4e0a\u9762\u7684\u793a\u4f8b\u6211\u4eec\u5927\u6982\u53ef\u4ee5\u603b\u7ed3\u51faNIO\u662f\u600e\u4e48\u89e3\u51b3\u6389\u7ebf\u7a0b\u7684\u74f6\u9888\u5e76\u5904\u7406\u6d77\u91cf\u8fde\u63a5\u7684\uff1a<\/p>\n<p data-pid=\"-o_1YsZG\">NIO\u7531\u539f\u6765\u7684\u963b\u585e\u8bfb\u5199\uff08\u5360\u7528\u7ebf\u7a0b\uff09\u53d8\u6210\u4e86\u5355\u7ebf\u7a0b\u8f6e\u8be2\u4e8b\u4ef6\uff0c\u627e\u5230\u53ef\u4ee5\u8fdb\u884c\u8bfb\u5199\u7684\u7f51\u7edc\u63cf\u8ff0\u7b26\u8fdb\u884c\u8bfb\u5199\u3002\u9664\u4e86\u4e8b\u4ef6\u7684\u8f6e\u8be2\u662f\u963b\u585e\u7684\uff08\u6ca1\u6709\u53ef\u5e72\u7684\u4e8b\u60c5\u5fc5\u987b\u8981\u963b\u585e\uff09\uff0c\u5269\u4f59\u7684I\/O\u64cd\u4f5c\u90fd\u662f\u7eafCPU\u64cd\u4f5c\uff0c\u6ca1\u6709\u5fc5\u8981\u5f00\u542f\u591a\u7ebf\u7a0b\u3002<\/p>\n<p data-pid=\"992mmxKW\">\u5e76\u4e14\u7531\u4e8e\u7ebf\u7a0b\u7684\u8282\u7ea6\uff0c\u8fde\u63a5\u6570\u5927\u7684\u65f6\u5019\u56e0\u4e3a\u7ebf\u7a0b\u5207\u6362\u5e26\u6765\u7684\u95ee\u9898\u4e5f\u968f\u4e4b\u89e3\u51b3\uff0c\u8fdb\u800c\u4e3a\u5904\u7406\u6d77\u91cf\u8fde\u63a5\u63d0\u4f9b\u4e86\u53ef\u80fd\u3002<\/p>\n<p data-pid=\"C_caDSMR\">\u5355\u7ebf\u7a0b\u5904\u7406I\/O\u7684\u6548\u7387\u786e\u5b9e\u975e\u5e38\u9ad8\uff0c\u6ca1\u6709\u7ebf\u7a0b\u5207\u6362\uff0c\u53ea\u662f\u62fc\u547d\u7684\u8bfb\u3001\u5199\u3001\u9009\u62e9\u4e8b\u4ef6\u3002\u4f46\u73b0\u5728\u7684\u670d\u52a1\u5668\uff0c\u4e00\u822c\u90fd\u662f\u591a\u6838\u5904\u7406\u5668\uff0c\u5982\u679c\u80fd\u591f\u5229\u7528\u591a\u6838\u5fc3\u8fdb\u884cI\/O\uff0c\u65e0\u7591\u5bf9\u6548\u7387\u4f1a\u6709\u66f4\u5927\u7684\u63d0\u9ad8\u3002<\/p>\n<p data-pid=\"j-st9kg2\">\u4ed4\u7ec6\u5206\u6790\u4e00\u4e0b\u6211\u4eec\u9700\u8981\u7684\u7ebf\u7a0b\uff0c\u5176\u5b9e\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<ol>\n<li data-pid=\"FiQIEoBe\">\u4e8b\u4ef6\u5206\u53d1\u5668\uff0c\u5355\u7ebf\u7a0b\u9009\u62e9\u5c31\u7eea\u7684\u4e8b\u4ef6\u3002<\/li>\n<li data-pid=\"QLtzj8I4\">I\/O\u5904\u7406\u5668\uff0c\u5305\u62ecconnect\u3001read\u3001write\u7b49\uff0c\u8fd9\u79cd\u7eafCPU\u64cd\u4f5c\uff0c\u4e00\u822c\u5f00\u542fCPU\u6838\u5fc3\u4e2a\u7ebf\u7a0b\u5c31\u53ef\u4ee5\u3002<\/li>\n<li data-pid=\"mSGrqKb4\">\u4e1a\u52a1\u7ebf\u7a0b\uff0c\u5728\u5904\u7406\u5b8cI\/O\u540e\uff0c\u4e1a\u52a1\u4e00\u822c\u8fd8\u4f1a\u6709\u81ea\u5df1\u7684\u4e1a\u52a1\u903b\u8f91\uff0c\u6709\u7684\u8fd8\u4f1a\u6709\u5176\u4ed6\u7684\u963b\u585eI\/O\uff0c\u5982DB\u64cd\u4f5c\uff0cRPC\u7b49\u3002\u53ea\u8981\u6709\u963b\u585e\uff0c\u5c31\u9700\u8981\u5355\u72ec\u7684\u7ebf\u7a0b\u3002<\/li>\n<\/ol>\n<p data-pid=\"Qv6bphex\">Java\u7684Selector\u5bf9\u4e8eLinux\u7cfb\u7edf\u6765\u8bf4\uff0c\u6709\u4e00\u4e2a\u81f4\u547d\u9650\u5236\uff1a\u540c\u4e00\u4e2achannel\u7684select\u4e0d\u80fd\u88ab\u5e76\u53d1\u7684\u8c03\u7528\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6709\u591a\u4e2aI\/O\u7ebf\u7a0b\uff0c\u5fc5\u987b\u4fdd\u8bc1\uff1a\u4e00\u4e2asocket\u53ea\u80fd\u5c5e\u4e8e\u4e00\u4e2aIoThread\uff0c\u800c\u4e00\u4e2aIoThread\u53ef\u4ee5\u7ba1\u7406\u591a\u4e2asocket\u3002<\/p>\n<p data-pid=\"haYEXP55\">\u53e6\u5916\u8fde\u63a5\u7684\u5904\u7406\u548c\u8bfb\u5199\u7684\u5904\u7406\u901a\u5e38\u53ef\u4ee5\u9009\u62e9\u5206\u5f00\uff0c\u8fd9\u6837\u5bf9\u4e8e\u6d77\u91cf\u8fde\u63a5\u7684\u6ce8\u518c\u548c\u8bfb\u5199\u5c31\u53ef\u4ee5\u5206\u53d1\u3002\u867d\u7136read()\u548cwrite()\u662f\u6bd4\u8f83\u9ad8\u6548\u65e0\u963b\u585e\u7684\u51fd\u6570\uff0c\u4f46\u6bd5\u7adf\u4f1a\u5360\u7528CPU\uff0c\u5982\u679c\u9762\u5bf9\u66f4\u9ad8\u7684\u5e76\u53d1\u5219\u65e0\u80fd\u4e3a\u529b\u3002<\/p>\n<figure><noscript><br \/>\n<img decoding=\"async\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-56\/202307071622567f7f90abf.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-rawwidth=\"727\" data-rawheight=\"494\" class=\"origin_image zh-lightbox-thumb lazyload\" width=\"727\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-56\/202307071622567f7f90abf.png\"><noscript><img decoding=\"async\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-56\/202307071622567f7f90abf.png\" data-rawwidth=\"727\" data-rawheight=\"494\" class=\"origin_image zh-lightbox-thumb\" width=\"727\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-22-56\/202307071622567f7f90abf.png\"><\/noscript><br \/>\n<\/noscript><br \/>\n<img decoding=\"async\" class=\"origin_image zh-lightbox-thumb lazy lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" width=\"727\" data-rawwidth=\"727\" data-rawheight=\"494\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" data-actualdata-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-original-token=\"v2-22efc734724d07251f8293e2f1143639\"><noscript><img decoding=\"async\" class=\"origin_image zh-lightbox-thumb lazy\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" width=\"727\" data-rawwidth=\"727\" data-rawheight=\"494\" data-original=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" data-actualsrc=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-07\/16-23-00\/202307071623000707bf648.png\" data-original-token=\"v2-22efc734724d07251f8293e2f1143639\"><\/noscript><\/figure>\n<h1>NIO\u5728\u5ba2\u6237\u7aef\u7684\u9b54\u529b<\/h1>\n<p data-pid=\"_okyIF_a\">\u901a\u8fc7\u4e0a\u9762\u7684\u5206\u6790\uff0c\u53ef\u4ee5\u770b\u51faNIO\u5728\u670d\u52a1\u7aef\u5bf9\u4e8e\u89e3\u653e\u7ebf\u7a0b\uff0c\u4f18\u5316I\/O\u548c\u5904\u7406\u6d77\u91cf\u8fde\u63a5\u65b9\u9762\uff0c\u786e\u5b9e\u6709\u81ea\u5df1\u7684\u7528\u6b66\u4e4b\u5730\u3002\u90a3\u4e48\u5728\u5ba2\u6237\u7aef\u4e0a\uff0cNIO\u53c8\u6709\u4ec0\u4e48\u4f7f\u7528\u573a\u666f\u5462?<\/p>\n<p data-pid=\"V88IiiXZ\">\u5e38\u89c1\u7684\u5ba2\u6237\u7aefBIO+\u8fde\u63a5\u6c60\u6a21\u578b\uff0c\u53ef\u4ee5\u5efa\u7acbn\u4e2a\u8fde\u63a5\uff0c\u7136\u540e\u5f53\u67d0\u4e00\u4e2a\u8fde\u63a5\u88abI\/O\u5360\u7528\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u8fde\u63a5\u6765\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<p data-pid=\"tvuD9jLU\">\u4f46\u591a\u7ebf\u7a0b\u7684\u6a21\u578b\u9762\u4e34\u548c\u670d\u52a1\u7aef\u76f8\u540c\u7684\u95ee\u9898\uff1a\u5982\u679c\u6307\u671b\u589e\u52a0\u8fde\u63a5\u6570\u6765\u63d0\u9ad8\u6027\u80fd\uff0c\u5219\u8fde\u63a5\u6570\u53c8\u53d7\u5236\u4e8e\u7ebf\u7a0b\u6570\u3001\u7ebf\u7a0b\u5f88\u8d35\u3001\u65e0\u6cd5\u5efa\u7acb\u5f88\u591a\u7ebf\u7a0b\uff0c\u5219\u6027\u80fd\u9047\u5230\u74f6\u9888\u3002<\/p>\n<h2>\u6bcf\u8fde\u63a5\u987a\u5e8f\u8bf7\u6c42\u7684Redis<\/h2>\n<p data-pid=\"BqTsWUKi\">\u5bf9\u4e8eRedis\u6765\u8bf4\uff0c\u7531\u4e8e\u670d\u52a1\u7aef\u662f\u5168\u5c40\u4e32\u884c\u7684\uff0c\u80fd\u591f\u4fdd\u8bc1\u540c\u4e00\u8fde\u63a5\u7684\u6240\u6709\u8bf7\u6c42\u4e0e\u8fd4\u56de\u987a\u5e8f\u4e00\u81f4\u3002\u8fd9\u6837\u53ef\u4ee5\u4f7f\u7528\u5355\u7ebf\u7a0b\uff0b\u961f\u5217\uff0c\u628a\u8bf7\u6c42\u6570\u636e\u7f13\u51b2\u3002\u7136\u540epipeline\u53d1\u9001\uff0c\u8fd4\u56defuture\uff0c\u7136\u540echannel\u53ef\u8bfb\u65f6\uff0c\u76f4\u63a5\u5728\u961f\u5217\u4e2d\u628afuture\u53d6\u56de\u6765\uff0cdone()\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<p data-pid=\"amDjK9Gx\">\u4f2a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div class=\"highlight\">\n<pre><code class=\"language-text\">class RedisClient Implements ChannelHandler{\n private BlockingQueue CmdQueue;\n private EventLoop eventLoop;\n private Channel channel;\n class Cmd{\n  String cmd;\n  Future result;\n }\n public Future get(String key){\n   Cmd cmd= new Cmd(key);\n   queue.offer(cmd);\n   eventLoop.submit(new Runnable(){\n        List list = new ArrayList();\n        queue.drainTo(list);\n        if(channel.isWritable()){\n         channel.writeAndFlush(list);\n        }\n   });\n}\n public void ChannelReadFinish(Channel channel\uff0cBuffer Buffer){\n    List result = handleBuffer();\/\/\u5904\u7406\u6570\u636e\n    \/\/\u4ececmdQueue\u53d6\u51fafuture\uff0c\u5e76\u8bbe\u503c\uff0cfuture.done();\n}\n public void ChannelWritable(Channel channel){\n   channel.flush();\n}\n}\n<\/code><\/pre>\n<\/div>\n<p data-pid=\"hJmAFG9k\">\u8fd9\u6837\u505a\uff0c\u80fd\u591f\u5145\u5206\u7684\u5229\u7528pipeline\u6765\u63d0\u9ad8I\/O\u80fd\u529b\uff0c\u540c\u65f6\u83b7\u53d6\u5f02\u6b65\u5904\u7406\u80fd\u529b\u3002<\/p>\n<h2>\u591a\u8fde\u63a5\u77ed\u8fde\u63a5\u7684HttpClient<\/h2>\n<p data-pid=\"HoPPRx-o\">\u7c7b\u4f3c\u4e8e\u7ade\u5bf9\u6293\u53d6\u7684\u9879\u76ee\uff0c\u5f80\u5f80\u9700\u8981\u5efa\u7acb\u65e0\u6570\u7684HTTP\u77ed\u8fde\u63a5\uff0c\u7136\u540e\u6293\u53d6\uff0c\u7136\u540e\u9500\u6bc1\uff0c\u5f53\u9700\u8981\u5355\u673a\u6293\u53d6\u4e0a\u5343\u7f51\u7ad9\u7ebf\u7a0b\u6570\u53c8\u53d7\u5236\u7684\u65f6\u5019\uff0c\u600e\u4e48\u4fdd\u8bc1\u6027\u80fd\u5462?<\/p>\n<p data-pid=\"LzGSiiGN\">\u4f55\u4e0d\u5c1d\u8bd5NIO\uff0c\u5355\u7ebf\u7a0b\u8fdb\u884c\u8fde\u63a5\u3001\u5199\u3001\u8bfb\u64cd\u4f5c\uff1f\u5982\u679c\u8fde\u63a5\u3001\u8bfb\u3001\u5199\u64cd\u4f5c\u7cfb\u7edf\u6ca1\u6709\u80fd\u529b\u5904\u7406\uff0c\u7b80\u5355\u7684\u6ce8\u518c\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u7b49\u5f85\u4e0b\u6b21\u5faa\u73af\u5c31\u597d\u4e86\u3002<\/p>\n<p data-pid=\"vqPuKFR6\">\u5982\u4f55\u5b58\u50a8\u4e0d\u540c\u7684\u8bf7\u6c42\/\u54cd\u5e94\u5462\uff1f\u7531\u4e8ehttp\u662f\u65e0\u72b6\u6001\u6ca1\u6709\u7248\u672c\u7684\u534f\u8bae\uff0c\u53c8\u6ca1\u6709\u529e\u6cd5\u4f7f\u7528\u961f\u5217\uff0c\u597d\u50cf\u529e\u6cd5\u4e0d\u591a\u3002\u6bd4\u8f83\u7b28\u7684\u529e\u6cd5\u662f\u5bf9\u4e8e\u4e0d\u540c\u7684socket\uff0c\u76f4\u63a5\u5b58\u50a8socket\u7684\u5f15\u7528\u4f5c\u4e3amap\u7684key\u3002<\/p>\n<h2>\u5e38\u89c1\u7684RPC\u6846\u67b6\uff0c\u5982Thrift\uff0cDubbo<\/h2>\n<p data-pid=\"dfKrHWw2\">\u8fd9\u79cd\u6846\u67b6\u5185\u90e8\u4e00\u822c\u7ef4\u62a4\u4e86\u8bf7\u6c42\u7684\u534f\u8bae\u548c\u8bf7\u6c42\u53f7\uff0c\u53ef\u4ee5\u7ef4\u62a4\u4e00\u4e2a\u4ee5\u8bf7\u6c42\u53f7\u4e3akey\uff0c\u7ed3\u679c\u7684result\u4e3afuture\u7684map\uff0c\u7ed3\u5408NIO+\u957f\u8fde\u63a5\uff0c\u83b7\u53d6\u975e\u5e38\u4e0d\u9519\u7684\u6027\u80fd\u3002<\/p>\n<h1>NIO\u9ad8\u7ea7\u4e3b\u9898<\/h1>\n<h2>Proactor\u4e0eReactor<\/h2>\n<p data-pid=\"AWeAwvii\">\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cI\/O \u590d\u7528\u673a\u5236\u9700\u8981\u4e8b\u4ef6\u5206\u53d1\u5668\uff08event dispatcher\uff09\u3002 \u4e8b\u4ef6\u5206\u53d1\u5668\u7684\u4f5c\u7528\uff0c\u5373\u5c06\u90a3\u4e9b\u8bfb\u5199\u4e8b\u4ef6\u6e90\u5206\u53d1\u7ed9\u5404\u8bfb\u5199\u4e8b\u4ef6\u7684\u5904\u7406\u8005\uff0c\u5c31\u50cf\u9001\u5feb\u9012\u7684\u5728\u697c\u4e0b\u558a: \u8c01\u8c01\u8c01\u7684\u5feb\u9012\u5230\u4e86\uff0c \u5feb\u6765\u62ff\u5427\uff01\u5f00\u53d1\u4eba\u5458\u5728\u5f00\u59cb\u7684\u65f6\u5019\u9700\u8981\u5728\u5206\u53d1\u5668\u90a3\u91cc\u6ce8\u518c\u611f\u5174\u8da3\u7684\u4e8b\u4ef6\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u5904\u7406\u8005\uff08event handler)\uff0c\u6216\u8005\u662f\u56de\u8c03\u51fd\u6570\uff1b\u4e8b\u4ef6\u5206\u53d1\u5668\u5728\u9002\u5f53\u7684\u65f6\u5019\uff0c\u4f1a\u5c06\u8bf7\u6c42\u7684\u4e8b\u4ef6\u5206\u53d1\u7ed9\u8fd9\u4e9bhandler\u6216\u8005\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p data-pid=\"sXzWT4Wv\">\u6d89\u53ca\u5230\u4e8b\u4ef6\u5206\u53d1\u5668\u7684\u4e24\u79cd\u6a21\u5f0f\u79f0\u4e3a\uff1aReactor\u548cProactor\u3002 Reactor\u6a21\u5f0f\u662f\u57fa\u4e8e\u540c\u6b65I\/O\u7684\uff0c\u800cProactor\u6a21\u5f0f\u662f\u548c\u5f02\u6b65I\/O\u76f8\u5173\u7684\u3002\u5728Reactor\u6a21\u5f0f\u4e2d\uff0c\u4e8b\u4ef6\u5206\u53d1\u5668\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u6216\u8005\u53ef\u5e94\u7528\u6216\u4e2a\u64cd\u4f5c\u7684\u72b6\u6001\u53d1\u751f\uff08\u6bd4\u5982\u6587\u4ef6\u63cf\u8ff0\u7b26\u53ef\u8bfb\u5199\uff0c\u6216\u8005\u662fsocket\u53ef\u8bfb\u5199\uff09\uff0c\u4e8b\u4ef6\u5206\u53d1\u5668\u5c31\u628a\u8fd9\u4e2a\u4e8b\u4ef6\u4f20\u7ed9\u4e8b\u5148\u6ce8\u518c\u7684\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u6216\u8005\u56de\u8c03\u51fd\u6570\uff0c\u7531\u540e\u8005\u6765\u505a\u5b9e\u9645\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<p data-pid=\"TXq2anG-\">\u800c\u5728Proactor\u6a21\u5f0f\u4e2d\uff0c\u4e8b\u4ef6\u5904\u7406\u8005\uff08\u6216\u8005\u4ee3\u7531\u4e8b\u4ef6\u5206\u53d1\u5668\u53d1\u8d77\uff09\u76f4\u63a5\u53d1\u8d77\u4e00\u4e2a\u5f02\u6b65\u8bfb\u5199\u64cd\u4f5c\uff08\u76f8\u5f53\u4e8e\u8bf7\u6c42\uff09\uff0c\u800c\u5b9e\u9645\u7684\u5de5\u4f5c\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u6765\u5b8c\u6210\u7684\u3002\u53d1\u8d77\u65f6\uff0c\u9700\u8981\u63d0\u4f9b\u7684\u53c2\u6570\u5305\u62ec\u7528\u4e8e\u5b58\u653e\u8bfb\u5230\u6570\u636e\u7684\u7f13\u5b58\u533a\u3001\u8bfb\u7684\u6570\u636e\u5927\u5c0f\u6216\u7528\u4e8e\u5b58\u653e\u5916\u53d1\u6570\u636e\u7684\u7f13\u5b58\u533a\uff0c\u4ee5\u53ca\u8fd9\u4e2a\u8bf7\u6c42\u5b8c\u540e\u7684\u56de\u8c03\u51fd\u6570\u7b49\u4fe1\u606f\u3002\u4e8b\u4ef6\u5206\u53d1\u5668\u5f97\u77e5\u4e86\u8fd9\u4e2a\u8bf7\u6c42\uff0c\u5b83\u9ed8\u9ed8\u7b49\u5f85\u8fd9\u4e2a\u8bf7\u6c42\u7684\u5b8c\u6210\uff0c\u7136\u540e\u8f6c\u53d1\u5b8c\u6210\u4e8b\u4ef6\u7ed9\u76f8\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u8005\u6216\u8005\u56de\u8c03\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5728Windows\u4e0a\u4e8b\u4ef6\u5904\u7406\u8005\u6295\u9012\u4e86\u4e00\u4e2a\u5f02\u6b65IO\u64cd\u4f5c\uff08\u79f0\u4e3aoverlapped\u6280\u672f\uff09\uff0c\u4e8b\u4ef6\u5206\u53d1\u5668\u7b49IO Complete\u4e8b\u4ef6\u5b8c\u6210\u3002\u8fd9\u79cd\u5f02\u6b65\u6a21\u5f0f\u7684\u5178\u578b\u5b9e\u73b0\u662f\u57fa\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42\u5f02\u6b65API\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u79f0\u4e4b\u4e3a\u201c\u7cfb\u7edf\u7ea7\u522b\u201d\u7684\u6216\u8005\u201c\u771f\u6b63\u610f\u4e49\u4e0a\u201d\u7684\u5f02\u6b65\uff0c\u56e0\u4e3a\u5177\u4f53\u7684\u8bfb\u5199\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u4ee3\u52b3\u7684\u3002<\/p>\n<p data-pid=\"taqnbG70\">\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5c06\u6709\u52a9\u4e8e\u7406\u89e3Reactor\u4e0eProactor\u4e8c\u8005\u7684\u5dee\u5f02\uff0c\u4ee5\u8bfb\u64cd\u4f5c\u4e3a\u4f8b\uff08\u5199\u64cd\u4f5c\u7c7b\u4f3c\uff09\u3002<\/p>\n<h4>\u5728Reactor\u4e2d\u5b9e\u73b0\u8bfb<\/h4>\n<ul>\n<li data-pid=\"jwV73fDY\">\u6ce8\u518c\u8bfb\u5c31\u7eea\u4e8b\u4ef6\u548c\u76f8\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u3002<\/li>\n<li data-pid=\"JO1DaqZ1\">\u4e8b\u4ef6\u5206\u53d1\u5668\u7b49\u5f85\u4e8b\u4ef6\u3002<\/li>\n<li data-pid=\"eVExiW7W\">\u4e8b\u4ef6\u5230\u6765\uff0c\u6fc0\u6d3b\u5206\u53d1\u5668\uff0c\u5206\u53d1\u5668\u8c03\u7528\u4e8b\u4ef6\u5bf9\u5e94\u7684\u5904\u7406\u5668\u3002<\/li>\n<li data-pid=\"WorAmP-6\">\u4e8b\u4ef6\u5904\u7406\u5668\u5b8c\u6210\u5b9e\u9645\u7684\u8bfb\u64cd\u4f5c\uff0c\u5904\u7406\u8bfb\u5230\u7684\u6570\u636e\uff0c\u6ce8\u518c\u65b0\u7684\u4e8b\u4ef6\uff0c\u7136\u540e\u8fd4\u8fd8\u63a7\u5236\u6743\u3002<\/li>\n<\/ul>\n<h4>\u5728Proactor\u4e2d\u5b9e\u73b0\u8bfb\uff1a<\/h4>\n<ul>\n<li data-pid=\"In1eSUvT\">\u5904\u7406\u5668\u53d1\u8d77\u5f02\u6b65\u8bfb\u64cd\u4f5c\uff08\u6ce8\u610f\uff1a\u64cd\u4f5c\u7cfb\u7edf\u5fc5\u987b\u652f\u6301\u5f02\u6b65IO\uff09\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5904\u7406\u5668\u65e0\u89c6IO\u5c31\u7eea\u4e8b\u4ef6\uff0c\u5b83\u5173\u6ce8\u7684\u662f\u5b8c\u6210\u4e8b\u4ef6\u3002<\/li>\n<li data-pid=\"eos4GsrL\">\u4e8b\u4ef6\u5206\u53d1\u5668\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u4e8b\u4ef6\u3002<\/li>\n<li data-pid=\"NxSpxoAf\">\u5728\u5206\u53d1\u5668\u7b49\u5f85\u8fc7\u7a0b\u4e2d\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5229\u7528\u5e76\u884c\u7684\u5185\u6838\u7ebf\u7a0b\u6267\u884c\u5b9e\u9645\u7684\u8bfb\u64cd\u4f5c\uff0c\u5e76\u5c06\u7ed3\u679c\u6570\u636e\u5b58\u5165\u7528\u6237\u81ea\u5b9a\u4e49\u7f13\u51b2\u533a\uff0c\u6700\u540e\u901a\u77e5\u4e8b\u4ef6\u5206\u53d1\u5668\u8bfb\u64cd\u4f5c\u5b8c\u6210\u3002<\/li>\n<li data-pid=\"2nWrYsCe\">\u4e8b\u4ef6\u5206\u53d1\u5668\u547c\u5524\u5904\u7406\u5668\u3002<\/li>\n<li data-pid=\"x8lUKmNh\">\u4e8b\u4ef6\u5904\u7406\u5668\u5904\u7406\u7528\u6237\u81ea\u5b9a\u4e49\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\uff0c\u7136\u540e\u542f\u52a8\u4e00\u4e2a\u65b0\u7684\u5f02\u6b65\u64cd\u4f5c\uff0c\u5e76\u5c06\u63a7\u5236\u6743\u8fd4\u56de\u4e8b\u4ef6\u5206\u53d1\u5668\u3002<\/li>\n<\/ul>\n<p data-pid=\"CnOvKfus\">\u53ef\u4ee5\u770b\u51fa\uff0c\u4e24\u4e2a\u6a21\u5f0f\u7684\u76f8\u540c\u70b9\uff0c\u90fd\u662f\u5bf9\u67d0\u4e2aI\/O\u4e8b\u4ef6\u7684\u4e8b\u4ef6\u901a\u77e5\uff08\u5373\u544a\u8bc9\u67d0\u4e2a\u6a21\u5757\uff0c\u8fd9\u4e2aI\/O\u64cd\u4f5c\u53ef\u4ee5\u8fdb\u884c\u6216\u5df2\u7ecf\u5b8c\u6210)\u3002\u5728\u7ed3\u6784\u4e0a\uff0c\u4e24\u8005\u4e5f\u6709\u76f8\u540c\u70b9\uff1a\u4e8b\u4ef6\u5206\u53d1\u5668\u8d1f\u8d23\u63d0\u4ea4IO\u64cd\u4f5c\uff08\u5f02\u6b65)\u3001\u67e5\u8be2\u8bbe\u5907\u662f\u5426\u53ef\u64cd\u4f5c\uff08\u540c\u6b65)\uff0c\u7136\u540e\u5f53\u6761\u4ef6\u6ee1\u8db3\u65f6\uff0c\u5c31\u56de\u8c03handler\uff1b\u4e0d\u540c\u70b9\u5728\u4e8e\uff0c\u5f02\u6b65\u60c5\u51b5\u4e0b\uff08Proactor)\uff0c\u5f53\u56de\u8c03handler\u65f6\uff0c\u8868\u793aI\/O\u64cd\u4f5c\u5df2\u7ecf\u5b8c\u6210\uff1b\u540c\u6b65\u60c5\u51b5\u4e0b\uff08Reactor)\uff0c\u56de\u8c03handler\u65f6\uff0c\u8868\u793aI\/O\u8bbe\u5907\u53ef\u4ee5\u8fdb\u884c\u67d0\u4e2a\u64cd\u4f5c\uff08can read \u6216 can write)\u3002<\/p>\n<p data-pid=\"sRmUA2gr\">\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u5c1d\u8bd5\u5e94\u5bf9\u4e3aProactor\u548cReactor\u6a21\u5f0f\u5efa\u7acb\u53ef\u79fb\u690d\u6846\u67b6\u7684\u6311\u6218\u3002\u5728\u6539\u8fdb\u65b9\u6848\u4e2d\uff0c\u6211\u4eec\u5c06Reactor\u539f\u6765\u4f4d\u4e8e\u4e8b\u4ef6\u5904\u7406\u5668\u5185\u7684Read\/Write\u64cd\u4f5c\u79fb\u81f3\u5206\u53d1\u5668\uff08\u4e0d\u59a8\u5c06\u8fd9\u4e2a\u601d\u8def\u79f0\u4e3a\u201c\u6a21\u62df\u5f02\u6b65\u201d\uff09\uff0c\u4ee5\u6b64\u5bfb\u6c42\u5c06Reactor\u591a\u8def\u540c\u6b65I\/O\u8f6c\u5316\u4e3a\u6a21\u62df\u5f02\u6b65I\/O\u3002\u4ee5\u8bfb\u64cd\u4f5c\u4e3a\u4f8b\u5b50\uff0c\u6539\u8fdb\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li data-pid=\"IEbdJxp1\">\u6ce8\u518c\u8bfb\u5c31\u7eea\u4e8b\u4ef6\u548c\u76f8\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668\u3002\u5e76\u4e3a\u5206\u53d1\u5668\u63d0\u4f9b\u6570\u636e\u7f13\u51b2\u533a\u5730\u5740\uff0c\u9700\u8981\u8bfb\u53d6\u6570\u636e\u91cf\u7b49\u4fe1\u606f\u3002<\/li>\n<li data-pid=\"DYZYpwZs\">\u5206\u53d1\u5668\u7b49\u5f85\u4e8b\u4ef6\uff08\u5982\u5728select()\u4e0a\u7b49\u5f85\uff09\u3002<\/li>\n<li data-pid=\"c6gy5wyr\">\u4e8b\u4ef6\u5230\u6765\uff0c\u6fc0\u6d3b\u5206\u53d1\u5668\u3002\u5206\u53d1\u5668\u6267\u884c\u4e00\u4e2a\u975e\u963b\u585e\u8bfb\u64cd\u4f5c\uff08\u5b83\u6709\u5b8c\u6210\u8fd9\u4e2a\u64cd\u4f5c\u6240\u9700\u7684\u5168\u90e8\u4fe1\u606f\uff09\uff0c\u6700\u540e\u8c03\u7528\u5bf9\u5e94\u5904\u7406\u5668\u3002<\/li>\n<li data-pid=\"gbiQ14d3\">\u4e8b\u4ef6\u5904\u7406\u5668\u5904\u7406\u7528\u6237\u81ea\u5b9a\u4e49\u7f13\u51b2\u533a\u7684\u6570\u636e\uff0c\u6ce8\u518c\u65b0\u7684\u4e8b\u4ef6\uff08\u5f53\u7136\u540c\u6837\u8981\u7ed9\u51fa\u6570\u636e\u7f13\u51b2\u533a\u5730\u5740\uff0c\u9700\u8981\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u7b49\u4fe1\u606f\uff09\uff0c\u6700\u540e\u5c06\u63a7\u5236\u6743\u8fd4\u8fd8\u5206\u53d1\u5668\u3002<br \/>\n\u5982\u6211\u4eec\u6240\u89c1\uff0c\u901a\u8fc7\u5bf9\u591a\u8defI\/O\u6a21\u5f0f\u529f\u80fd\u7ed3\u6784\u7684\u6539\u9020\uff0c\u53ef\u5c06Reactor\u8f6c\u5316\u4e3aProactor\u6a21\u5f0f\u3002\u6539\u9020\u524d\u540e\uff0c\u6a21\u578b\u5b9e\u9645\u5b8c\u6210\u7684\u5de5\u4f5c\u91cf\u6ca1\u6709\u589e\u52a0\uff0c\u53ea\u4e0d\u8fc7\u53c2\u4e0e\u8005\u95f4\u5bf9\u5de5\u4f5c\u804c\u8d23\u7a0d\u52a0\u8c03\u6362\u3002\u6ca1\u6709\u5de5\u4f5c\u91cf\u7684\u6539\u53d8\uff0c\u81ea\u7136\u4e0d\u4f1a\u9020\u6210\u6027\u80fd\u7684\u524a\u5f31\u3002\u5bf9\u5982\u4e0b\u5404\u6b65\u9aa4\u7684\u6bd4\u8f83\uff0c\u53ef\u4ee5\u8bc1\u660e\u5de5\u4f5c\u91cf\u7684\u6052\u5b9a\uff1a<\/li>\n<\/ul>\n<h4>\u6807\u51c6\/\u5178\u578b\u7684Reactor\uff1a<\/h4>\n<ul>\n<li data-pid=\"9oGtPpN4\">\u6b65\u9aa41\uff1a\u7b49\u5f85\u4e8b\u4ef6\u5230\u6765\uff08Reactor\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"s00ZPA9W\">\u6b65\u9aa42\uff1a\u5c06\u8bfb\u5c31\u7eea\u4e8b\u4ef6\u5206\u53d1\u7ed9\u7528\u6237\u5b9a\u4e49\u7684\u5904\u7406\u5668\uff08Reactor\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"XhGmDLFC\">\u6b65\u9aa43\uff1a\u8bfb\u6570\u636e\uff08\u7528\u6237\u5904\u7406\u5668\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"93728J4s\">\u6b65\u9aa44\uff1a\u5904\u7406\u6570\u636e\uff08\u7528\u6237\u5904\u7406\u5668\u8d1f\u8d23\uff09\u3002<\/li>\n<\/ul>\n<h4>\u6539\u8fdb\u5b9e\u73b0\u7684\u6a21\u62dfProactor\uff1a<\/h4>\n<ul>\n<li data-pid=\"HDGIaO6J\">\u6b65\u9aa41\uff1a\u7b49\u5f85\u4e8b\u4ef6\u5230\u6765\uff08Proactor\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"6xqF5RZw\">\u6b65\u9aa42\uff1a\u5f97\u5230\u8bfb\u5c31\u7eea\u4e8b\u4ef6\uff0c\u6267\u884c\u8bfb\u6570\u636e\uff08\u73b0\u5728\u7531Proactor\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"eAIupZts\">\u6b65\u9aa43\uff1a\u5c06\u8bfb\u5b8c\u6210\u4e8b\u4ef6\u5206\u53d1\u7ed9\u7528\u6237\u5904\u7406\u5668\uff08Proactor\u8d1f\u8d23\uff09\u3002<\/li>\n<li data-pid=\"O986SWFN\">\n<p data-pid=\"00QeXcGN\">\u6b65\u9aa44\uff1a\u5904\u7406\u6570\u636e\uff08\u7528\u6237\u5904\u7406\u5668\u8d1f\u8d23\uff09\u3002<\/p>\n<p data-pid=\"CJrh-v1R\">\u5bf9\u4e8e\u4e0d\u63d0\u4f9b\u5f02\u6b65I\/O API\u7684\u64cd\u4f5c\u7cfb\u7edf\u6765\u8bf4\uff0c\u8fd9\u79cd\u529e\u6cd5\u53ef\u4ee5\u9690\u85cfSocket API\u7684\u4ea4\u4e92\u7ec6\u8282\uff0c\u4ece\u800c\u5bf9\u5916\u66b4\u9732\u4e00\u4e2a\u5b8c\u6574\u7684\u5f02\u6b65\u63a5\u53e3\u3002\u501f\u6b64\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6784\u5efa\u5b8c\u5168\u53ef\u79fb\u690d\u7684\uff0c\u5e73\u53f0\u65e0\u5173\u7684\uff0c\u6709\u901a\u7528\u5bf9\u5916\u63a5\u53e3\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/li>\n<\/ul>\n<p data-pid=\"-VJgJG-K\">\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<div class=\"highlight\">\n<pre><code class=\"language-text\">interface ChannelHandler{\n      void channelReadComplate(Channel channel\uff0cbyte[] data);\n      void channelWritable(Channel channel);\n   }\n   class Channel{\n     Socket socket;\n     Event event;\/\/\u8bfb\uff0c\u5199\u6216\u8005\u8fde\u63a5\n   }\n\n   \/\/IO\u7ebf\u7a0b\u4e3b\u5faa\u73af\uff1a\n   class IoThread extends Thread{\n   public void run(){\n   Channel channel;\n   while(channel=Selector.select()){\/\/\u9009\u62e9\u5c31\u7eea\u7684\u4e8b\u4ef6\u548c\u5bf9\u5e94\u7684\u8fde\u63a5\n      if(channel.event==accept){\n         registerNewChannelHandler(channel);\/\/\u5982\u679c\u662f\u65b0\u8fde\u63a5\uff0c\u5219\u6ce8\u518c\u4e00\u4e2a\u65b0\u7684\u8bfb\u5199\u5904\u7406\u5668\n         Selector.interested(read);\n      }\n      if(channel.event==write){\n         getChannelHandler(channel).channelWritable(channel);\/\/\u5982\u679c\u53ef\u4ee5\u5199\uff0c\u5219\u6267\u884c\u5199\u4e8b\u4ef6\n      }\n      if(channel.event==read){\n          byte[] data = channel.read();\n          if(channel.read()==0)\/\/\u6ca1\u6709\u8bfb\u5230\u6570\u636e\uff0c\u8868\u793a\u672c\u6b21\u6570\u636e\u8bfb\u5b8c\u4e86\n          {\n          getChannelHandler(channel).channelReadComplate(channel\uff0cdata;\/\/\u5904\u7406\u8bfb\u5b8c\u6210\u4e8b\u4ef6\n          }\n          if(\u8fc7\u8f7d\u4fdd\u62a4){\n          Selector.interested(read);\n          }\n\n      }\n     }\n    }\n   Map&lt;Channel\uff0cChannelHandler&gt; handlerMap;\/\/\u6240\u6709channel\u7684\u5bf9\u5e94\u4e8b\u4ef6\u5904\u7406\u5668\n   }\n<\/code><\/pre>\n<\/div>\n<h2>Selector.wakeup()<\/h2>\n<h3>\u4e3b\u8981\u4f5c\u7528<\/h3>\n<p data-pid=\"hWFwquy6\">\u89e3\u9664\u963b\u585e\u5728Selector.select()\/select(long)\u4e0a\u7684\u7ebf\u7a0b\uff0c\u7acb\u5373\u8fd4\u56de\u3002<\/p>\n<p data-pid=\"vcTZAKFt\">\u4e24\u6b21\u6210\u529f\u7684select\u4e4b\u95f4\u591a\u6b21\u8c03\u7528wakeup\u7b49\u4ef7\u4e8e\u4e00\u6b21\u8c03\u7528\u3002<\/p>\n<p data-pid=\"5I_1G15s\">\u5982\u679c\u5f53\u524d\u6ca1\u6709\u963b\u585e\u5728select\u4e0a\uff0c\u5219\u672c\u6b21wakeup\u8c03\u7528\u5c06\u4f5c\u7528\u4e8e\u4e0b\u4e00\u6b21select\u2014\u2014\u201c\u8bb0\u5fc6\u201d\u4f5c\u7528\u3002<\/p>\n<p data-pid=\"sB91GNw0\">\u4e3a\u4ec0\u4e48\u8981\u5524\u9192\uff1f<\/p>\n<p data-pid=\"1mJ_fm3p\">\u6ce8\u518c\u4e86\u65b0\u7684channel\u6216\u8005\u4e8b\u4ef6\u3002<\/p>\n<p data-pid=\"TOGY6eoL\">channel\u5173\u95ed\uff0c\u53d6\u6d88\u6ce8\u518c\u3002<\/p>\n<p data-pid=\"TqkbQMJ_\">\u4f18\u5148\u7ea7\u66f4\u9ad8\u7684\u4e8b\u4ef6\u89e6\u53d1\uff08\u5982\u5b9a\u65f6\u5668\u4e8b\u4ef6\uff09\uff0c\u5e0c\u671b\u53ca\u65f6\u5904\u7406\u3002<\/p>\n<h3>\u539f\u7406<\/h3>\n<p data-pid=\"9T7eXJ75\">Linux\u4e0a\u5229\u7528pipe\u8c03\u7528\u521b\u5efa\u4e00\u4e2a\u7ba1\u9053\uff0cWindows\u4e0a\u5219\u662f\u4e00\u4e2aloopback\u7684tcp\u8fde\u63a5\u3002\u8fd9\u662f\u56e0\u4e3awin32\u7684\u7ba1\u9053\u65e0\u6cd5\u52a0\u5165select\u7684fd set\uff0c\u5c06\u7ba1\u9053\u6216\u8005TCP\u8fde\u63a5\u52a0\u5165select fd set\u3002<\/p>\n<p data-pid=\"vhegyIko\">wakeup\u5f80\u7ba1\u9053\u6216\u8005\u8fde\u63a5\u5199\u5165\u4e00\u4e2a\u5b57\u8282\uff0c\u963b\u585e\u7684select\u56e0\u4e3a\u6709I\/O\u4e8b\u4ef6\u5c31\u7eea\uff0c\u7acb\u5373\u8fd4\u56de\u3002\u53ef\u89c1\uff0cwakeup\u7684\u8c03\u7528\u5f00\u9500\u4e0d\u53ef\u5ffd\u89c6\u3002<\/p>\n<h2>Buffer\u7684\u9009\u62e9<\/h2>\n<p data-pid=\"4FDVjQEM\">\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u6b21\u5199\u64cd\u4f5c\u5206\u4e3a\u4e24\u6b65\uff1a<\/p>\n<ol>\n<li data-pid=\"t3Njh6jl\">\u5c06\u6570\u636e\u4ece\u7528\u6237\u7a7a\u95f4\u62f7\u8d1d\u5230\u7cfb\u7edf\u7a7a\u95f4\u3002<\/li>\n<li data-pid=\"92lL2-4T\">\u4ece\u7cfb\u7edf\u7a7a\u95f4\u5f80\u7f51\u5361\u5199\u3002\u540c\u7406\uff0c\u8bfb\u64cd\u4f5c\u4e5f\u5206\u4e3a\u4e24\u6b65\uff1a<br \/>\n\u2460 \u5c06\u6570\u636e\u4ece\u7f51\u5361\u62f7\u8d1d\u5230\u7cfb\u7edf\u7a7a\u95f4\uff1b<br \/>\n\u2461 \u5c06\u6570\u636e\u4ece\u7cfb\u7edf\u7a7a\u95f4\u62f7\u8d1d\u5230\u7528\u6237\u7a7a\u95f4\u3002<\/li>\n<\/ol>\n<p data-pid=\"Z1-g9Jii\">\u5bf9\u4e8eNIO\u6765\u8bf4\uff0c\u7f13\u5b58\u7684\u4f7f\u7528\u53ef\u4ee5\u4f7f\u7528DirectByteBuffer\u548cHeapByteBuffer\u3002\u5982\u679c\u4f7f\u7528\u4e86DirectByteBuffer\uff0c\u4e00\u822c\u6765\u8bf4\u53ef\u4ee5\u51cf\u5c11\u4e00\u6b21\u7cfb\u7edf\u7a7a\u95f4\u5230\u7528\u6237\u7a7a\u95f4\u7684\u62f7\u8d1d\u3002\u4f46Buffer\u521b\u5efa\u548c\u9500\u6bc1\u7684\u6210\u672c\u66f4\u9ad8\uff0c\u66f4\u4e0d\u5b9c\u7ef4\u62a4\uff0c\u901a\u5e38\u4f1a\u7528\u5185\u5b58\u6c60\u6765\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<p data-pid=\"nYk_7WoQ\">\u5982\u679c\u6570\u636e\u91cf\u6bd4\u8f83\u5c0f\u7684\u4e2d\u5c0f\u5e94\u7528\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528heapBuffer\uff1b\u53cd\u4e4b\u53ef\u4ee5\u7528directBuffer\u3002<\/p>\n<h1>NIO\u5b58\u5728\u7684\u95ee\u9898<\/h1>\n<p data-pid=\"Fmt899g6\">\u4f7f\u7528NIO != \u9ad8\u6027\u80fd\uff0c\u5f53\u8fde\u63a5\u6570&lt;1000\uff0c\u5e76\u53d1\u7a0b\u5ea6\u4e0d\u9ad8\u6216\u8005\u5c40\u57df\u7f51\u73af\u5883\u4e0bNIO\u5e76\u6ca1\u6709\u663e\u8457\u7684\u6027\u80fd\u4f18\u52bf\u3002<\/p>\n<p data-pid=\"xsmUBxlq\">NIO\u5e76\u6ca1\u6709\u5b8c\u5168\u5c4f\u853d\u5e73\u53f0\u5dee\u5f02\uff0c\u5b83\u4ecd\u7136\u662f\u57fa\u4e8e\u5404\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u7684I\/O\u7cfb\u7edf\u5b9e\u73b0\u7684\uff0c\u5dee\u5f02\u4ecd\u7136\u5b58\u5728\u3002\u4f7f\u7528NIO\u505a\u7f51\u7edc\u7f16\u7a0b\u6784\u5efa\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b\u5e76\u4e0d\u5bb9\u6613\uff0c\u9677\u9631\u91cd\u91cd\u3002<\/p>\n<p data-pid=\"ejPiHFWS\">\u63a8\u8350\u5927\u5bb6\u4f7f\u7528\u6210\u719f\u7684NIO\u6846\u67b6\uff0c\u5982Netty\uff0cMINA\u7b49\u3002\u89e3\u51b3\u4e86\u5f88\u591aNIO\u7684\u9677\u9631\uff0c\u5e76\u5c4f\u853d\u4e86\u64cd\u4f5c\u7cfb\u7edf\u7684\u5dee\u5f02\uff0c\u6709\u8f83\u597d\u7684\u6027\u80fd\u548c\u7f16\u7a0b\u6a21\u578b\u3002<\/p>\n<h1>\u603b\u7ed3<\/h1>\n<p data-pid=\"-6zD64kE\">\u6700\u540e\u603b\u7ed3\u4e00\u4e0b\u5230\u5e95NIO\u7ed9\u6211\u4eec\u5e26\u6765\u4e86\u4e9b\u4ec0\u4e48\uff1a<\/p>\n<blockquote data-pid=\"cnHXymKf\">\n<ul>\n<li data-pid=\"VWF5d0lq\">\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b<\/li>\n<li data-pid=\"G9BgDJe6\">\u907f\u514d\u591a\u7ebf\u7a0b<\/li>\n<li data-pid=\"boicze7I\">\u5355\u7ebf\u7a0b\u5904\u7406\u591a\u4efb\u52a1<\/li>\n<li data-pid=\"uxG4ldBo\">\u975e\u963b\u585eI\/O\uff0cI\/O\u8bfb\u5199\u4e0d\u518d\u963b\u585e\uff0c\u800c\u662f\u8fd4\u56de0<\/li>\n<li 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