{"id":1198,"date":"2017-08-04T17:44:47","date_gmt":"2017-08-04T09:44:47","guid":{"rendered":"http:\/\/www.kumouse.com\/?p=1198"},"modified":"2017-08-04T17:44:47","modified_gmt":"2017-08-04T09:44:47","slug":"netty-%e9%95%bf%e8%bf%9e%e6%8e%a5%e6%9c%8d%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=1198","title":{"rendered":"Netty \u957f\u8fde\u63a5\u670d\u52a1"},"content":{"rendered":"<h3 id=\"netty-\">Netty \u662f\u4ec0\u4e48<\/h3>\n<p>Netty:\u00a0<a href=\"http:\/\/netty.io\/\" target=\"_blank\" rel=\"noopener\">http:\/\/netty.io\/<\/a><\/p>\n<blockquote><p>Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers &amp; clients.<\/p><\/blockquote>\n<p>\u5b98\u65b9\u7684\u89e3\u91ca\u6700\u7cbe\u51c6\u4e86\uff0c\u671f\u4e2d\u6700\u5438\u5f15\u4eba\u7684\u5c31\u662f\u9ad8\u6027\u80fd\u4e86\u3002\u4f46\u662f\u5f88\u591a\u4eba\u4f1a\u6709\u8fd9\u6837\u7684\u7591\u95ee\uff1a\u76f4\u63a5\u7528 NIO \u5b9e\u73b0\u7684\u8bdd\uff0c\u4e00\u5b9a\u4f1a\u66f4\u5feb\u5427\uff1f\u5c31\u50cf\u6211\u76f4\u63a5\u624b\u5199 JDBC \u867d\u7136\u4ee3\u7801\u91cf\u5927\u4e86\u70b9\uff0c\u4f46\u662f\u4e00\u5b9a\u6bd4 iBatis \u5feb\uff01<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u4e86\u89e3 Netty \u540e\u4f60\u624d\u4f1a\u53d1\u73b0\uff0c\u8fd9\u4e2a\u8fd8\u771f\u4e0d\u4e00\u5b9a\uff01<\/p>\n<p>\u5229\u7528 Netty \u800c\u4e0d\u7528 NIO \u76f4\u63a5\u5199\u7684\u4f18\u52bf\u6709\u8fd9\u4e9b\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6027\u80fd\u9ad8\u6269\u5c55\u7684\u67b6\u6784\u8bbe\u8ba1\uff0c\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u4f60\u53ea\u9700\u8981\u5173\u6ce8\u4e1a\u52a1\u800c\u4e0d\u9700\u8981\u5173\u6ce8\u67b6\u6784<\/li>\n<li><code>Zero-Copy<\/code>\u00a0\u6280\u672f\u5c3d\u91cf\u51cf\u5c11\u5185\u5b58\u62f7\u8d1d<\/li>\n<li>\u4e3a Linux \u5b9e\u73b0 Native \u7248 Socket<\/li>\n<li>\u5199\u540c\u4e00\u4efd\u4ee3\u7801\uff0c\u517c\u5bb9 java 1.7 \u7684 NIO2 \u548c 1.7 \u4e4b\u524d\u7248\u672c\u7684 NIO<\/li>\n<li><code>Pooled Buffers<\/code>\u00a0\u5927\u5927\u51cf\u8f7b\u58f0\u8bf7\u00a0<code>Buffer<\/code>\u00a0\u548c\u91ca\u653e\u00a0<code>Buffer<\/code>\u00a0\u7684\u538b\u529b<\/li>\n<li>\u2026\u2026<\/li>\n<\/ul>\n<p>\u7279\u6027\u592a\u591a\uff0c\u5927\u5bb6\u53ef\u4ee5\u53bb\u770b\u4e00\u4e0b\u300aNetty in Action\u300b\u8fd9\u672c\u4e66\u4e86\u89e3\u66f4\u591a\u3002<\/p>\n<p>\u53e6\u5916\uff0cNetty \u6e90\u7801\u662f\u4e00\u672c\u5f88\u597d\u7684\u6559\u79d1\u4e66\uff01\u5927\u5bb6\u5728\u4f7f\u7528\u7684\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u591a\u770b\u770b\u5b83\u7684\u6e90\u7801\uff0c\u975e\u5e38\u68d2\uff01<\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"section-1\"><a target=\"_blank\" name=\"t2\"><\/a>\u74f6\u9888\u662f\u4ec0\u4e48<\/h3>\n<p>\u60f3\u8981\u505a\u4e00\u4e2a\u957f\u94fe\u670d\u52a1\u7684\u8bdd\uff0c\u6700\u7ec8\u7684\u76ee\u6807\u662f\u4ec0\u4e48\uff1f\u800c\u5b83\u7684\u74f6\u9888\u53c8\u662f\u4ec0\u4e48\uff1f<\/p>\n<p>\u5176\u5b9e\u76ee\u6807\u4e3b\u8981\u5c31\u4e24\u4e2a\uff1a<\/p>\n<ol>\n<li>\u66f4\u591a\u7684\u8fde\u63a5<\/li>\n<li>\u66f4\u9ad8\u7684 QPS<\/li>\n<\/ol>\n<p>\u6240\u4ee5\uff0c\u4e0b\u9762\u5c31\u9488\u5bf9\u8fd9\u8fde\u4e2a\u76ee\u6807\u6765\u8bf4\u8bf4\u4ed6\u4eec\u7684\u96be\u70b9\u548c\u6ce8\u610f\u70b9\u5427\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"section-2\"><a target=\"_blank\" name=\"t3\"><\/a>\u66f4\u591a\u7684\u8fde\u63a5<\/h3>\n<h4 id=\"io\"><a target=\"_blank\" name=\"t4\"><\/a>\u975e\u963b\u585e IO<\/h4>\n<p>\u5176\u5b9e\u65e0\u8bba\u662f\u7528 <a class=\"replace_word\" title=\"Java \u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/java\" target=\"_blank\" rel=\"noopener\">Java <\/a>NIO \u8fd8\u662f\u7528 Netty\uff0c\u8fbe\u5230\u767e\u4e07\u8fde\u63a5\u90fd\u6ca1\u6709\u4efb\u4f55\u96be\u5ea6\u3002\u56e0\u4e3a\u5b83\u4eec\u90fd\u662f\u975e\u963b\u585e\u7684 IO\uff0c\u4e0d\u9700\u8981\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u4e86\u3002<\/p>\n<p>\u6b32\u77e5\u8be6\u60c5\uff0c\u53ef\u4ee5\u641c\u7d22\u4e00\u4e0b<code>BIO<\/code>,<code>NIO<\/code>,<code>AIO<\/code>\u7684\u76f8\u5173\u77e5\u8bc6\u70b9\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"java-nio-\"><a target=\"_blank\" name=\"t5\"><\/a>Java NIO \u5b9e\u73b0\u767e\u4e07\u8fde\u63a5<\/h4>\n<pre><code class=\"hljs perl\">ServerSocketChannel ssc = ServerSocketChannel.<span class=\"hljs-keyword\">open<\/span>();\r\nSelector sel = Selector.<span class=\"hljs-keyword\">open<\/span>();\r\n\r\nssc.configureBlocking(false);\r\nssc.<span class=\"hljs-keyword\">socket<\/span>().<span class=\"hljs-keyword\">bind<\/span>(new InetSocketAddress(<span class=\"hljs-number\">8080<\/span>));\r\nSelectionKey key = ssc.register(sel, SelectionKey.OP_ACCEPT);\r\n\r\n<span class=\"hljs-keyword\">while<\/span>(true) {\r\n    sel.<span class=\"hljs-keyword\">select<\/span>();\r\n    Iterator it = sel.selectedKeys().iterator();\r\n    <span class=\"hljs-keyword\">while<\/span>(it.hasNext()) {\r\n        SelectionKey skey = (SelectionKey)it.<span class=\"hljs-keyword\">next<\/span>();\r\n        it.remove();\r\n        <span class=\"hljs-keyword\">if<\/span>(skey.isAcceptable()) {\r\n            ch = ssc.<span class=\"hljs-keyword\">accept<\/span>();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u53ea\u4f1a\u63a5\u53d7\u8fde\u8fc7\u6765\u7684\u8fde\u63a5\uff0c\u4e0d\u505a\u4efb\u4f55\u64cd\u4f5c\uff0c\u4ec5\u4ec5\u7528\u6765<a class=\"replace_word\" title=\"\u8f6f\u4ef6\u6d4b\u8bd5\u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/softwaretest\" target=\"_blank\" rel=\"noopener\">\u6d4b\u8bd5<\/a>\u5f85\u673a\u8fde\u63a5\u6570\u6781\u9650\u3002<\/p>\n<p>\u5927\u5bb6\u53ef\u4ee5\u770b\u5230\u8fd9\u6bb5\u4ee3\u7801\u662f NIO \u7684\u57fa\u672c\u5199\u6cd5\uff0c\u6ca1\u4ec0\u4e48\u7279\u522b\u7684\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"netty--1\"><a target=\"_blank\" name=\"t6\"><\/a>Netty \u5b9e\u73b0\u767e\u4e07\u8fde\u63a5<\/h4>\n<pre><code class=\"hljs java\">NioEventLoopGroup bossGroup =  <span class=\"hljs-keyword\">new<\/span> NioEventLoopGroup();\r\nNioEventLoopGroup workerGroup= <span class=\"hljs-keyword\">new<\/span> NioEventLoopGroup();\r\nServerBootstrap bootstrap = <span class=\"hljs-keyword\">new<\/span> ServerBootstrap();\r\nbootstrap.group(bossGroup, workerGroup);\r\n\r\nbootstrap.channel( NioServerSocketChannel.class);\r\n\r\nbootstrap.childHandler(<span class=\"hljs-keyword\">new<\/span> ChannelInitializer&lt;SocketChannel&gt;() {\r\n    <span class=\"hljs-annotation\">@Override<\/span> <span class=\"hljs-function\"><span class=\"hljs-keyword\">protected<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">initChannel<\/span><span class=\"hljs-params\">(SocketChannel ch)<\/span> <span class=\"hljs-keyword\">throws<\/span> Exception <\/span>{\r\n        ChannelPipeline pipeline = ch.pipeline();\r\n        <span class=\"hljs-comment\">\/\/todo: add handler<\/span>\r\n    }});\r\nbootstrap.bind(<span class=\"hljs-number\">8080<\/span>).sync();\r\n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u5176\u5b9e\u4e5f\u662f\u975e\u5e38\u7b80\u5355\u7684 Netty \u521d\u59cb\u5316\u4ee3\u7801\u3002\u540c\u6837\uff0c\u4e3a\u4e86\u5b9e\u73b0\u767e\u4e07\u8fde\u63a5\u6839\u672c\u6ca1\u6709\u4ec0\u4e48\u7279\u6b8a\u7684\u5730\u65b9\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"section-3\"><a target=\"_blank\" name=\"t7\"><\/a>\u74f6\u9888\u5230\u5e95\u5728\u54ea<\/h4>\n<p>\u4e0a\u9762\u4e24\u79cd\u4e0d\u540c\u7684\u5b9e\u73b0\u90fd\u975e\u5e38\u7b80\u5355\uff0c\u6ca1\u6709\u4efb\u4f55\u96be\u5ea6\uff0c\u90a3\u6709\u4eba\u80af\u5b9a\u4f1a\u95ee\u4e86\uff1a\u5b9e\u73b0\u767e\u4e07\u8fde\u63a5\u7684\u74f6\u9888\u5230\u5e95\u662f\u4ec0\u4e48\uff1f<\/p>\n<p>\u5176\u5b9e\u53ea\u8981 <a class=\"replace_word\" title=\"Java \u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/java\" target=\"_blank\" rel=\"noopener\">Java<\/a> \u4e2d\u7528\u7684\u662f\u975e\u963b\u585e IO\uff08NIO \u548c AIO \u90fd\u7b97\uff09\uff0c\u90a3\u4e48\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u5355\u7ebf\u7a0b\u6765\u5b9e\u73b0\u5927\u91cf\u7684 Socket \u8fde\u63a5\u3002 \u4e0d\u4f1a\u50cf BIO \u90a3\u6837\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u56e0\u4e3a\u4ee3\u7801\u5c42\u9762\u4e0d\u4f1a\u6210\u4e3a\u74f6\u9888\u3002<\/p>\n<p>\u5176\u5b9e\u771f\u6b63\u7684\u74f6\u9888\u662f\u5728 <a class=\"replace_word\" title=\"Linux\u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/linux\" target=\"_blank\" rel=\"noopener\">Linux<\/a> \u5185\u6838\u914d\u7f6e\u4e0a\uff0c\u9ed8\u8ba4\u7684\u914d\u7f6e\u4f1a\u9650\u5236\u5168\u5c40\u6700\u5927\u6253\u5f00\u6587\u4ef6\u6570(Max Open Files)\u8fd8\u4f1a\u9650\u5236\u8fdb\u7a0b\u6570\u3002 \u6240\u4ee5\u9700\u8981\u5bf9 <a class=\"replace_word\" title=\"Linux\u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/linux\" target=\"_blank\" rel=\"noopener\">linux<\/a> \u5185\u6838\u914d\u7f6e\u8fdb\u884c\u4e00\u5b9a\u7684\u4fee\u6539\u624d\u53ef\u4ee5\u3002<\/p>\n<p>\u8fd9\u4e2a\u4e1c\u897f\u73b0\u5728\u770b\u4f3c\u5f88\u7b80\u5355\uff0c\u6309\u7167\u7f51\u4e0a\u7684\u914d\u7f6e\u6539\u4e00\u4e0b\u5c31\u884c\u4e86\uff0c\u4f46\u662f\u5927\u5bb6\u4e00\u5b9a\u4e0d\u77e5\u9053\u7b2c\u4e00\u4e2a\u7814\u7a76\u8fd9\u4e2a\u4eba\u6709\u591a\u96be\u3002<\/p>\n<p>\u8fd9\u91cc\u76f4\u63a5\u8d34\u51e0\u7bc7\u6587\u7ae0\uff0c\u4ecb\u7ecd\u4e86\u76f8\u5173\u914d\u7f6e\u7684\u4fee\u6539\u65b9\u5f0f\uff1a<\/p>\n<p><a href=\"http:\/\/www.ideawu.net\/blog\/archives\/740.html\" target=\"_blank\" rel=\"noopener\">\u6784\u5efaC1000K\u7684\u670d\u52a1\u5668<\/a><\/p>\n<p><a href=\"http:\/\/www.linuxde.net\/2013\/08\/15150.html\" target=\"_blank\" rel=\"noopener\">\u6dd8\u5b9d\u6280\u672f\u5206\u4eab HTTP\u957f\u8fde\u63a5200\u4e07\u5c1d\u8bd5\u53ca\u8c03\u4f18<\/a><\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"section-4\"><a target=\"_blank\" name=\"t8\"><\/a>\u5982\u4f55\u9a8c\u8bc1<\/h4>\n<p>\u8ba9\u670d\u52a1\u5668\u652f\u6301\u767e\u4e07\u8fde\u63a5\u4e00\u70b9\u4e5f\u4e0d\u96be\uff0c\u6211\u4eec\u5f53\u65f6\u5f88\u5feb\u5c31\u641e\u5b9a\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u670d\u52a1\u7aef\uff0c\u4f46\u662f\u6700\u5927\u7684\u95ee\u9898\u662f\uff0c\u6211\u600e\u4e48\u53bb\u9a8c\u8bc1\u8fd9\u4e2a\u670d\u52a1\u5668\u53ef\u4ee5\u652f\u6491\u767e\u4e07\u8fde\u63a5\u5462\uff1f<\/p>\n<p>\u6211\u4eec\u7528 Netty \u5199\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u5ba2\u6237\u7aef\uff0c\u5b83\u540c\u6837\u7528\u4e86\u975e\u963b\u585e IO \uff0c\u6240\u4ee5\u4e0d\u7528\u5f00\u5927\u91cf\u7684\u7ebf\u7a0b\u3002 \u4f46\u662f\u4e00\u53f0\u673a\u5668\u4e0a\u7684\u7aef\u53e3\u6570\u662f\u6709\u9650\u5236\u7684\uff0c\u7528<code>root<\/code>\u6743\u9650\u7684\u8bdd\uff0c\u6700\u591a\u4e5f\u5c31 6W \u591a\u4e2a\u8fde\u63a5\u4e86\u3002 \u6240\u4ee5\u6211\u4eec\u8fd9\u91cc\u7528 Netty \u5199\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u7528\u5c3d\u5355\u673a\u6240\u6709\u7684\u8fde\u63a5\u5427\u3002<\/p>\n<pre><code class=\"hljs java\">NioEventLoopGroup workerGroup =  <span class=\"hljs-keyword\">new<\/span> NioEventLoopGroup();\r\nBootstrap b = <span class=\"hljs-keyword\">new<\/span> Bootstrap();\r\nb.group(workerGroup);\r\nb.channel( NioSocketChannel.class);\r\n\r\nb.handler(<span class=\"hljs-keyword\">new<\/span> ChannelInitializer&lt;SocketChannel&gt;() {\r\n    <span class=\"hljs-annotation\">@Override<\/span>\r\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">initChannel<\/span><span class=\"hljs-params\">(SocketChannel ch)<\/span> <span class=\"hljs-keyword\">throws<\/span> Exception <\/span>{\r\n        ChannelPipeline pipeline = ch.pipeline();\r\n        <span class=\"hljs-comment\">\/\/todo:add handler<\/span>\r\n    }\r\n    });\r\n\r\n<span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-keyword\">int<\/span> k = <span class=\"hljs-number\">0<\/span>; k &lt; <span class=\"hljs-number\">60000<\/span>; k++) {\r\n    <span class=\"hljs-comment\">\/\/\u8bf7\u81ea\u884c\u4fee\u6539\u6210\u670d\u52a1\u7aef\u7684IP<\/span>\r\n    b.connect(<span class=\"hljs-number\">127.0<\/span><span class=\"hljs-number\">.0<\/span><span class=\"hljs-number\">.1<\/span>, <span class=\"hljs-number\">8080<\/span>);\r\n}\r\n<\/code><\/pre>\n<p>\u4ee3\u7801\u540c\u6837\u5f88\u7b80\u5355\uff0c\u53ea\u8981\u8fde\u4e0a\u5c31\u884c\u4e86\uff0c\u4e0d\u9700\u8981\u505a\u4efb\u4f55\u5176\u4ed6\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u8fd9\u6837\u53ea\u8981\u627e\u5230\u4e00\u53f0\u7535\u8111\u542f\u52a8\u8fd9\u4e2a\u7a0b\u5e8f\u5373\u53ef\u3002\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff0c\u5ba2\u6237\u7aef\u6700\u597d\u548c\u670d\u52a1\u7aef\u4e00\u6837\uff0c\u4fee\u6539\u4e00\u4e0b Linux \u5185\u6838\u53c2\u6570\u914d\u7f6e\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"section-5\"><a target=\"_blank\" name=\"t9\"><\/a>\u600e\u4e48\u53bb\u627e\u90a3\u4e48\u591a\u673a\u5668<\/h4>\n<p>\u6309\u7167\u4e0a\u9762\u7684\u505a\u6cd5\uff0c\u5355\u673a\u6700\u591a\u53ef\u4ee5\u6709 6W \u7684\u8fde\u63a5\uff0c\u767e\u4e07\u8fde\u63a5\u8d77\u7801\u9700\u898117\u53f0\u673a\u5668\uff01<\/p>\n<p>\u5982\u4f55\u624d\u80fd\u7a81\u7834\u8fd9\u4e2a\u9650\u5236\u5462\uff1f\u5176\u5b9e\u8fd9\u4e2a\u9650\u5236\u6765\u81ea\u4e8e\u7f51\u5361\u3002 \u6211\u4eec\u540e\u6765\u901a\u8fc7\u4f7f\u7528\u865a\u62df\u673a\uff0c\u5e76\u4e14\u628a\u865a\u62df\u673a\u7684\u865a\u62df\u7f51\u5361\u914d\u7f6e\u6210\u4e86\u6865\u63a5\u6a21\u5f0f\u89e3\u51b3\u4e86\u95ee\u9898\u3002<\/p>\n<p>\u6839\u636e\u7269\u7406\u673a\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4e2a\u7269\u7406\u673a\u8d77\u7801\u53ef\u4ee5\u8dd14-5\u4e2a\u865a\u62df\u673a\uff0c\u6240\u4ee5\u6700\u7ec8\u767e\u4e07\u8fde\u63a5\u53ea\u89814\u53f0\u7269\u7406\u673a\u5c31\u591f\u4e86\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"section-6\"><a target=\"_blank\" name=\"t10\"><\/a>\u8ba8\u5de7\u7684\u505a\u6cd5<\/h4>\n<p>\u9664\u4e86\u7528\u865a\u62df\u673a\u5145\u5206\u538b\u69a8\u673a\u5668\u8d44\u6e90\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u975e\u5e38\u8ba8\u5de7\u7684\u505a\u6cd5\uff0c\u8fd9\u4e2a\u505a\u6cd5\u4e5f\u662f\u6211\u5728\u9a8c\u8bc1\u8fc7\u7a0b\u4e2d\u5076\u7136\u53d1\u73b0\u7684\u3002<\/p>\n<p>\u6839\u636e TCP\/IP \u534f\u8bae\uff0c\u4efb\u4f55\u4e00\u65b9\u53d1\u9001<code>FIN<\/code>\u540e\u5c31\u4f1a\u542f\u52a8\u6b63\u5e38\u7684\u65ad\u5f00\u6d41\u7a0b\u3002\u800c\u5982\u679c\u9047\u5230\u7f51\u7edc\u77ac\u65ad\u7684\u60c5\u51b5\uff0c\u8fde\u63a5\u5e76\u4e0d\u4f1a\u81ea\u52a8\u65ad\u5f00\u3002<\/p>\n<p>\u90a3\u6211\u4eec\u662f\u4e0d\u662f\u53ef\u4ee5\u8fd9\u6837\u505a\uff1f<\/p>\n<ol>\n<li>\u542f\u52a8\u670d\u52a1\u7aef\uff0c\u5343\u4e07\u522b\u8bbe\u7f6e Socket \u7684<code>keep-alive<\/code>\u5c5e\u6027\uff0c\u9ed8\u8ba4\u662f\u4e0d\u8bbe\u7f6e\u7684<\/li>\n<li>\u7528\u865a\u62df\u673a\u8fde\u63a5\u670d\u52a1\u5668<\/li>\n<li>\u5f3a\u5236\u5173\u95ed\u865a\u62df\u673a<\/li>\n<li>\u4fee\u6539\u865a\u62df\u673a\u7f51\u5361\u7684 MAC \u5730\u5740\uff0c\u91cd\u65b0\u542f\u52a8\u5e76\u8fde\u63a5\u670d\u52a1\u5668<\/li>\n<li>\u670d\u52a1\u7aef\u63a5\u53d7\u65b0\u7684\u8fde\u63a5\uff0c\u5e76\u4fdd\u6301\u4e4b\u524d\u7684\u8fde\u63a5\u4e0d\u65ad<\/li>\n<\/ol>\n<p>\u6211\u4eec\u8981\u9a8c\u8bc1\u7684\u662f\u670d\u52a1\u7aef\u7684\u6781\u9650\uff0c\u6240\u4ee5\u53ea\u8981\u4e00\u76f4\u8ba9\u670d\u52a1\u7aef\u8ba4\u4e3a\u6709\u90a3\u4e48\u591a\u8fde\u63a5\u5c31\u884c\u4e86\uff0c\u4e0d\u662f\u5417\uff1f<\/p>\n<p>\u7ecf\u8fc7\u6211\u4eec\u7684\u8bd5\u9a8c\u540e\uff0c\u8fd9\u79cd\u65b9\u6cd5\u548c\u7528\u771f\u5b9e\u7684\u673a\u5668\u8fde\u63a5\u670d\u52a1\u7aef\u7684\u8868\u73b0\u662f\u4e00\u6837\u7684\uff0c\u56e0\u4e3a\u670d\u52a1\u7aef\u53ea\u662f\u8ba4\u4e3a\u5bf9\u65b9\u7f51\u7edc\u4e0d\u597d\u7f62\u4e86\uff0c\u4e0d\u4f1a\u5c06\u4f60\u65ad\u5f00\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u7981\u7528<code>keep-alive<\/code>\u662f\u56e0\u4e3a\u5982\u679c\u4e0d\u7981\u7528\uff0cSocket \u8fde\u63a5\u4f1a\u81ea\u52a8\u63a2\u6d4b\u8fde\u63a5\u662f\u5426\u53ef\u7528\uff0c\u5982\u679c\u4e0d\u53ef\u7528\u4f1a\u5f3a\u5236\u65ad\u5f00\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"qps\"><a target=\"_blank\" name=\"t11\"><\/a>\u66f4\u9ad8\u7684 QPS<\/h3>\n<p>\u7531\u4e8e NIO \u548c Netty \u90fd\u662f\u975e\u963b\u585e IO\uff0c\u6240\u4ee5\u65e0\u8bba\u6709\u591a\u5c11\u8fde\u63a5\uff0c\u90fd\u53ea\u9700\u8981\u5c11\u91cf\u7684\u7ebf\u7a0b\u5373\u53ef\u3002\u800c\u4e14 QPS \u4e0d\u4f1a\u56e0\u4e3a\u8fde\u63a5\u6570\u7684\u589e\u957f\u800c\u964d\u4f4e\uff08\u5728\u5185\u5b58\u8db3\u591f\u7684\u524d\u63d0\u4e0b\uff09\u3002<\/p>\n<p>\u800c\u4e14 Netty \u672c\u8eab\u8bbe\u8ba1\u5f97\u8db3\u591f\u597d\u4e86\uff0cNetty \u4e0d\u662f\u9ad8 QPS \u7684\u74f6\u9888\u3002\u90a3\u9ad8 QPS \u7684\u74f6\u9888\u662f\u4ec0\u4e48\uff1f<\/p>\n<p>\u662f<a class=\"replace_word\" title=\"\u7b97\u6cd5\u4e0e\u6570\u636e\u7ed3\u6784\u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/datastructure\" target=\"_blank\" rel=\"noopener\">\u6570\u636e\u7ed3\u6784<\/a>\u7684\u8bbe\u8ba1\uff01<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"section-7\"><a target=\"_blank\" name=\"t12\"><\/a>\u5982\u4f55\u4f18\u5316\u6570\u636e\u7ed3\u6784<\/h4>\n<p>\u9996\u5148\u8981\u719f\u6089\u5404\u79cd\u6570\u636e\u7ed3\u6784\u7684\u7279\u70b9\u662f\u5fc5\u9700\u7684\uff0c\u4f46\u662f\u5728\u590d\u6742\u7684\u9879\u76ee\u4e2d\uff0c\u4e0d\u662f\u7528\u4e86\u4e00\u4e2a\u96c6\u5408\u5c31\u53ef\u4ee5\u641e\u5b9a\u7684\uff0c\u6709\u65f6\u5019\u5f80\u5f80\u662f\u5404\u79cd\u96c6\u5408\u7684\u7ec4\u5408\u4f7f\u7528\u3002<\/p>\n<p>\u65e2\u8981\u505a\u5230\u9ad8\u6027\u80fd\uff0c\u8fd8\u8981\u505a\u5230\u4e00\u81f4\u6027\uff0c\u8fd8\u4e0d\u80fd\u6709\u6b7b\u9501\uff0c\u8fd9\u91cc\u96be\u5ea6\u771f\u7684\u4e0d\u5c0f\u2026<\/p>\n<p>\u6211\u5728\u8fd9\u91cc\u603b\u7ed3\u7684\u7ecf\u9a8c\u662f\uff0c\u4e0d\u8981\u8fc7\u65e9\u4f18\u5316\u3002\u4f18\u5148\u8003\u8651\u4e00\u81f4\u6027\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u51c6\u786e\uff0c\u7136\u540e\u518d\u53bb\u60f3\u529e\u6cd5\u4f18\u5316\u6027\u80fd\u3002<\/p>\n<p>\u56e0\u4e3a\u4e00\u81f4\u6027\u6bd4\u6027\u80fd\u91cd\u8981\u5f97\u591a\uff0c\u800c\u4e14\u5f88\u591a\u6027\u80fd\u95ee\u9898\u5728\u91cf\u5c0f\u548c\u91cf\u5927\u7684\u65f6\u5019\uff0c\u74f6\u9888\u5b8c\u5168\u4f1a\u5728\u4e0d\u540c\u7684\u5730\u65b9\u3002 \u6240\u4ee5\uff0c\u6211\u89c9\u5f97\u6700\u4f73\u7684\u505a\u6cd5\u662f\uff0c\u7f16\u5199\u8fc7\u7a0b\u4e2d\u4ee5\u4e00\u81f4\u6027\u4e3a\u4e3b\uff0c\u6027\u80fd\u4e3a\u8f85\uff1b\u4ee3\u7801\u5b8c\u6210\u540e\u518d\u53bb\u627e\u90a3\u4e2a TOP1\uff0c\u7136\u540e\u53bb\u89e3\u51b3\u5b83\uff01<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"cpu-\"><a target=\"_blank\" name=\"t13\"><\/a>\u89e3\u51b3 CPU \u74f6\u9888<\/h4>\n<p>\u5728\u505a\u8fd9\u4e2a\u4f18\u5316\u524d\uff0c\u5148\u5728\u6d4b\u8bd5\u73af\u5883\u4e2d\u53bb\u72e0\u72e0\u5730\u538b\u4f60\u7684\u670d\u52a1\u5668\uff0c\u91cf\u5c0f\u91cf\u5927\uff0c\u5929\u58e4\u4e4b\u522b\u3002<\/p>\n<p>\u6709\u4e86\u538b\u529b\u6d4b\u8bd5\u540e\uff0c\u5c31\u9700\u8981\u7528\u5de5\u5177\u6765\u53d1\u73b0\u6027\u80fd\u74f6\u9888\u4e86\uff01<\/p>\n<p>\u6211\u559c\u6b22\u7528\u7684\u662f VisualVM\uff0c\u6253\u5f00\u5de5\u5177\u540e\u770b\u62bd\u6837\u5668(Sample)\uff0c\u6839\u636e\u81ea\u7528\u65f6\u95f4(Self Time (CPU))\u5012\u5e8f\uff0c\u6392\u540d\u7b2c\u4e00\u7684\u5c31\u662f\u4f60\u9700\u8981\u53bb\u4f18\u5316\u7684\u70b9\u4e86\uff01<\/p>\n<p>\u5907\u6ce8\uff1aSample \u548c Profiler \u6709\u4ec0\u4e48\u533a\u522b\uff1f\u524d\u8005\u662f\u62bd\u6837\uff0c\u6570\u636e\u4e0d\u662f\u6700\u51c6\u4f46\u662f\u4e0d\u5f71\u54cd\u6027\u80fd\uff1b\u540e\u8005\u662f\u7edf\u8ba1\u51c6\u786e\uff0c\u4f46\u662f\u975e\u5e38\u5f71\u54cd\u6027\u80fd\u3002 \u5982\u679c\u4f60\u7684\u7a0b\u5e8f\u975e\u5e38\u8017 CPU\uff0c\u90a3\u4e48\u5c3d\u91cf\u7528 Sample\uff0c\u5426\u5219\u5f00\u542f Profiler \u540e\u964d\u4f4e\u6027\u80fd\uff0c\u53cd\u800c\u4f1a\u5f71\u54cd\u51c6\u786e\u6027\u3002<\/p>\n<p><a href=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839852-6146-sample.png\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-medium size-medium\" src=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839852-6146-sample-300x217.png\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839852-6146-sample-300x217.png 300w, http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839852-6146-sample-768x557.png 768w, http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839852-6146-sample.png 883w\" alt=\"\" width=\"300\" height=\"217\" \/><\/a><\/p>\n<p>\u8fd8\u8bb0\u5f97\u6211\u4eec\u9879\u76ee\u7b2c\u4e00\u6b21\u53d1\u73b0\u7684\u74f6\u9888\u7adf\u7136\u662f<code>ConcurrentLinkedQueue<\/code>\u8fd9\u4e2a\u7c7b\u4e2d\u7684<code>size()<\/code>\u65b9\u6cd5\u3002 \u91cf\u5c0f\u7684\u65f6\u5019\u6ca1\u6709\u5f71\u54cd\uff0c\u4f46\u662f<code>Queue<\/code>\u5f88\u5927\u7684\u65f6\u5019\uff0c\u5b83\u6bcf\u6b21\u90fd\u662f\u4ece\u5934\u7edf\u8ba1\u603b\u6570\u7684\uff0c\u800c\u8fd9\u4e2a<code>size()<\/code>\u65b9\u6cd5\u6211\u4eec\u53c8\u662f\u975e\u5e38\u9891\u7e41\u5730\u8c03\u7528\u7684\uff0c\u6240\u4ee5\u5bf9\u6027\u80fd\u4ea7\u751f\u4e86\u5f71\u54cd\u3002<\/p>\n<p><code>size()<\/code>\u7684\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"hljs cs\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">int<\/span> <span class=\"hljs-title\">size<\/span><span class=\"hljs-params\">()<\/span> <\/span>{\r\n    <span class=\"hljs-keyword\">int<\/span> count = <span class=\"hljs-number\">0<\/span>;\r\n    <span class=\"hljs-keyword\">for<\/span> (Node&lt;E&gt; p = first(); p != <span class=\"hljs-keyword\">null<\/span>; p = succ(p))\r\n    <span class=\"hljs-keyword\">if<\/span> (p.item != <span class=\"hljs-keyword\">null<\/span>)\r\n    <span class=\"hljs-comment\">\/\/ Collection.size() spec says to max out<\/span>\r\n    <span class=\"hljs-keyword\">if<\/span> (++count == Integer.MAX_VALUE)\r\n    <span class=\"hljs-keyword\">break<\/span>;\r\n    <span class=\"hljs-keyword\">return<\/span> count;\r\n}\r\n<\/code><\/pre>\n<p>\u540e\u6765\u6211\u4eec\u901a\u8fc7\u989d\u5916\u4f7f\u7528\u4e00\u4e2a<code>AtomicInteger<\/code>\u6765\u8ba1\u6570\uff0c\u89e3\u51b3\u4e86\u95ee\u9898\u3002\u4f46\u662f\u5206\u79bb\u540e\u5c82\u4e0d\u662f\u505a\u4e0d\u5230\u9ad8\u4e00\u81f4\u6027\u5462\uff1f \u6ca1\u5173\u7cfb\uff0c\u6211\u4eec\u7684\u8fd9\u90e8\u5206\u4ee3\u7801\u5173\u5fc3\u6700\u7ec8\u4e00\u81f4\u6027\uff0c\u6240\u4ee5\u53ea\u8981\u4fdd\u8bc1\u6700\u7ec8\u4e00\u81f4\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u5177\u4f53\u6848\u4f8b\u8981\u5177\u4f53\u5206\u6790\uff0c\u4e0d\u540c\u7684\u4e1a\u52a1\u8981\u7528\u4e0d\u540c\u7684\u5b9e\u73b0\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4 id=\"gc-\"><a target=\"_blank\" name=\"t14\"><\/a>\u89e3\u51b3 GC \u74f6\u9888<\/h4>\n<p>GC \u74f6\u9888\u4e5f\u662f CPU \u74f6\u9888\u7684\u4e00\u90e8\u5206\uff0c\u56e0\u4e3a\u4e0d\u5408\u7406\u7684 GC \u4f1a\u5927\u5927\u5f71\u54cd CPU \u6027\u80fd\u3002<\/p>\n<p>\u8fd9\u91cc\u8fd8\u662f\u5728\u7528 VisualVM\uff0c\u4f46\u662f\u4f60\u9700\u8981\u88c5\u4e00\u4e2a\u63d2\u4ef6\uff1aVisualGC<\/p>\n<p><a href=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839853-3575-gc.png\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-medium size-medium\" src=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839853-3575-gc-300x224.png\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839853-3575-gc-300x224.png 300w, http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839853-3575-gc-768x573.png 768w, http:\/\/www.kumouse.com\/wp-content\/uploads\/2017\/08\/1501839853-3575-gc.png 928w\" alt=\"\" width=\"300\" height=\"224\" \/><\/a><\/p>\n<p>\u6709\u4e86\u8fd9\u4e2a\u63d2\u4ef6\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u76f4\u89c2\u7684\u770b\u5230 GC \u6d3b\u52a8\u60c5\u51b5\u4e86\u3002<\/p>\n<p>\u6309\u7167\u6211\u4eec\u7684\u7406\u89e3\uff0c\u5728\u538b\u6d4b\u7684\u65f6\u5019\uff0c\u6709\u5927\u91cf\u7684 New GC \u662f\u5f88\u6b63\u5e38\u7684\uff0c\u56e0\u4e3a\u6709\u5927\u91cf\u7684\u5bf9\u8c61\u5728\u521b\u5efa\u548c\u9500\u6bc1\u3002<\/p>\n<p>\u4f46\u662f\u4e00\u5f00\u59cb\u6709\u5f88\u591a Old GC \u5c31\u6709\u70b9\u8bf4\u4e0d\u8fc7\u53bb\u4e86\uff01<\/p>\n<p>\u540e\u6765\u53d1\u73b0\uff0c\u5728\u6211\u4eec\u538b\u6d4b\u73af\u5883\u4e2d\uff0c\u56e0\u4e3a Netty \u7684 QPS \u548c\u8fde\u63a5\u6570\u5173\u8054\u4e0d\u5927\uff0c\u6240\u4ee5\u6211\u4eec\u53ea\u8fde\u63a5\u4e86\u5c11\u91cf\u7684\u8fde\u63a5\u3002\u5185\u5b58\u5206\u914d\u5f97\u4e5f\u4e0d\u662f\u5f88\u591a\u3002<\/p>\n<p>\u800c JVM \u4e2d\uff0c\u9ed8\u8ba4\u7684\u65b0\u751f\u4ee3\u548c\u8001\u751f\u4ee3\u7684\u6bd4\u4f8b\u662f1:2\uff0c\u6240\u4ee5\u5927\u91cf\u7684\u8001\u751f\u4ee3\u88ab\u6d6a\u8d39\u4e86\uff0c\u65b0\u751f\u4ee3\u4e0d\u591f\u7528\u3002<\/p>\n<p>\u901a\u8fc7\u8c03\u6574\u00a0<code>-XX:NewRatio<\/code>\u00a0\u540e\uff0cOld GC \u6709\u4e86\u663e\u8457\u7684\u964d\u4f4e\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u751f\u4ea7\u73af\u5883\u53c8\u4e0d\u4e00\u6837\u4e86\uff0c\u751f\u4ea7\u73af\u5883\u4e0d\u4f1a\u6709\u90a3\u4e48\u5927\u7684 QPS\uff0c\u4f46\u662f\u8fde\u63a5\u4f1a\u5f88\u591a\uff0c\u8fde\u63a5\u76f8\u5173\u7684\u5bf9\u8c61\u5b58\u6d3b\u65f6\u95f4\u975e\u5e38\u957f\uff0c\u6240\u4ee5\u751f\u4ea7\u73af\u5883\u66f4\u5e94\u8be5\u5206\u914d\u66f4\u591a\u7684\u8001\u751f\u4ee3\u3002<\/p>\n<p>\u603b\u4e4b\uff0cGC \u4f18\u5316\u548c CPU \u4f18\u5316\u4e00\u6837\uff0c\u4e5f\u9700\u8981\u4e0d\u65ad\u8c03\u6574\uff0c\u4e0d\u65ad\u4f18\u5316\uff0c\u4e0d\u662f\u4e00\u8e74\u800c\u5c31\u7684\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"section-8\"><a target=\"_blank\" name=\"t15\"><\/a>\u5176\u4ed6\u4f18\u5316<\/h3>\n<p>\u5982\u679c\u4f60\u5df2\u7ecf\u5b8c\u6210\u4e86\u81ea\u5df1\u7684\u7a0b\u5e8f\uff0c\u90a3\u4e48\u4e00\u5b9a\u8981\u770b\u770b\u300aNetty in Action\u300b\u4f5c\u8005\u7684\u8fd9\u4e2a\u7f51\u7ad9\uff1a<a href=\"http:\/\/normanmaurer.me\/presentations\/2014-facebook-eng-netty\/slides.html\" target=\"_blank\" rel=\"noopener\">Netty Best Practices a.k.a Faster == Better<\/a>\u3002<\/p>\n<p>\u76f8\u4fe1\u4f60\u4f1a\u53d7\u76ca\u532a\u6d45\uff0c\u7ecf\u8fc7\u91cc\u9762\u63d0\u5230\u7684\u4e00\u4e9b\u5c0f\u5c0f\u7684\u4f18\u5316\u540e\uff0c\u6211\u4eec\u7684\u6574\u4f53 QPS \u63d0\u5347\u4e86\u5f88\u591a\u3002<\/p>\n<p>\u6700\u540e\u4e00\u70b9\u5c31\u662f\uff0c<a class=\"replace_word\" title=\"Java \u77e5\u8bc6\u5e93\" href=\"http:\/\/lib.csdn.net\/base\/java\" target=\"_blank\" rel=\"noopener\">java <\/a>1.7 \u6bd4 java 1.6 \u6027\u80fd\u9ad8\u5f88\u591a\uff01\u56e0\u4e3a Netty \u7684\u7f16\u5199\u98ce\u683c\u662f\u4e8b\u4ef6\u673a\u5236\u7684\uff0c\u770b\u4f3c\u662f AIO\u3002 \u53ef java 1.6 \u662f\u6ca1\u6709 AIO \u7684\uff0cjava 1.7 \u662f\u652f\u6301 AIO \u7684\uff0c\u6240\u4ee5\u5982\u679c\u7528 java 1.7 \u7684\u8bdd\uff0c\u6027\u80fd\u4e5f\u4f1a\u6709\u663e\u8457\u63d0\u5347\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3 id=\"section-9\"><a target=\"_blank\" name=\"t16\"><\/a>\u6700\u540e\u6210\u679c<\/h3>\n<p>\u7ecf\u8fc7\u51e0\u5468\u7684\u4e0d\u65ad\u538b\u6d4b\u548c\u4e0d\u65ad\u4f18\u5316\u4e86\uff0c\u6211\u4eec\u5728\u4e00\u53f016\u6838\u3001120G\u5185\u5b58(JVM\u53ea\u5206\u914d8G)\u7684\u673a\u5668\u4e0a\uff0c\u7528 java 1.6 \u8fbe\u5230\u4e8660\u4e07\u7684\u8fde\u63a5\u548c20\u4e07\u7684QPS\u3002<\/p>\n<p>\u5176\u5b9e\u8fd9\u8fd8\u4e0d\u662f\u6781\u9650\uff0cJVM \u53ea\u5206\u914d\u4e868G\u5185\u5b58\uff0c\u5185\u5b58\u914d\u7f6e\u518d\u5927\u4e00\u70b9\u8fde\u63a5\u6570\u8fd8\u53ef\u4ee5\u4e0a\u53bb\uff1b<\/p>\n<p>QPS \u770b\u4f3c\u5f88\u9ad8\uff0cSystem Load Average \u5f88\u4f4e\uff0c\u4e5f\u5c31\u662f\u8bf4\u660e\u74f6\u9888\u4e0d\u5728 CPU \u4e5f\u4e0d\u5728\u5185\u5b58\uff0c\u90a3\u4e48\u5e94\u8be5\u662f\u5728 IO \u4e86\uff01 \u4e0a\u9762\u7684 Linux \u914d\u7f6e\u662f\u4e3a\u4e86\u8fbe\u5230\u767e\u4e07\u8fde\u63a5\u800c\u914d\u7f6e\u7684\uff0c\u5e76\u6ca1\u6709\u9488\u5bf9\u6211\u4eec\u81ea\u5df1\u7684\u4e1a\u52a1\u573a\u666f\u53bb\u505a\u4f18\u5316\u3002<\/p>\n<p>\u56e0\u4e3a\u76ee\u524d\u6027\u80fd\u5b8c\u5168\u591f\u7528\uff0c\u7ebf\u4e0a\u5355\u673a QPS \u6700\u591a\u624d 1W\uff0c\u6240\u4ee5\u6211\u4eec\u5148\u628a\u7cbe\u529b\u653e\u5728\u4e86\u5176\u4ed6\u5730\u65b9\u3002 \u76f8\u4fe1\u540e\u9762\u6211\u4eec\u8fd8\u4f1a\u53bb\u7ee7\u7eed\u4f18\u5316\u8fd9\u5757\u7684\u6027\u80fd\uff0c\u671f\u5f85 QPS \u80fd\u6709\u66f4\u5927\u7684\u7a81\u7834\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Netty \u662f\u4ec0\u4e48 Netty:\u00a0http:\/\/netty.io\/ Netty is an asynchron [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1199,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1198","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1198"}],"version-history":[{"count":1,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1198\/revisions"}],"predecessor-version":[{"id":1201,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1198\/revisions\/1201"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/media\/1199"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}