\u8fd9\u662f\u4e00\u9053\u9762\u8bd5\u9898,\u4e3b\u8981\u8003\u5bdf\u7684\u662flinux\u548c\u7f51\u7edc\u534f\u8bae\u76f8\u5173\u57fa\u7840\u77e5\u8bc6. \u670d\u52a1\u7aefHandler\u4ee3\u7801\u5982\u4e0b:<\/strong><\/em><\/p>\n\n\n\n Client\u7aef\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b:<\/strong><\/em><\/p>\n\n\n\n \u5ba2\u6237\u7aefHandler\u4ee3\u7801\u5982\u4e0b:<\/strong><\/em><\/p>\n\n\n\n \u6211\u4eec\u4f7f\u7528maven\u5c06server\u548cclient\u7684\u4ee3\u7801\u6253\u6210\u4e24\u4e2ajar\u5305,\u653e\u5230\u540c\u4e00\u53f0linux\u670d\u52a1\u5668\u4e0b\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5206\u522b\u542f\u52a8\u4e24\u4e2a\u670d\u52a1:<\/em><\/p>\n\n\n\n \u5f88\u5feb\u5ba2\u6237\u7aef\u4fbf\u629b\u51fa\u4e86\u5927\u91cf\u62d2\u7edd\u8fde\u63a5\u7684\u5f02\u5e38,\u800c\u670d\u52a1\u7aef\u663e\u793a\u51fa\u6765\u7684\u5df2\u8fde\u63a5\u6570\u53ea\u67091000\u591a,\u4e8e\u662f\u731c\u6d4b\u53ef\u80fd\u662f\u670d\u52a1\u7aef\u8fbe\u5230\u4e86\u6240\u80fd\u63a5\u6536\u7684\u6700\u5927tcp\u8fde\u63a5\u6570(\u5373\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2a\u6570),\u56e0\u4e3a\u53d7\u670d\u52a1\u5668\u8d44\u6e90\u3001\u64cd\u4f5c\u7cfb\u7edf\u7684\u9650\u5236,linux\u5185\u6838\u9ed8\u8ba4\u6587\u4ef6\u63cf\u8ff0\u7b26\u6700\u5927\u503c\u662f1024,\u4e5f\u5c31\u662f\u8bf4\u9ed8\u8ba4\u652f\u6301\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u662f1024\u4e2a(\u6bcf\u4e2atcp\u8fde\u63a5\u90fd\u8981\u5360\u7528\u4e00\u5b9a\u5185\u5b58,\u6bcf\u4e2asocket\u5c31\u662f\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26) \u53ef\u4ee5\u770b\u5230\u5176\u4e2d\u7684open files\u662f1024,\u63a5\u7740\u6211\u4eec\u8c03\u6574\u5185\u6838\u53c2\u6570:<\/em><\/p>\n\n\n\n \u6ce8\u610f\u4ee5\u4e0a\u547d\u4ee4\u53ea\u80fd\u4e34\u65f6\u751f\u6548,\u7cfb\u7edf\u91cd\u542f\u540e\u53c8\u6062\u590d\u6210\u9ed8\u8ba4\u503c.<\/strong> soft\u548chard\u4e3a\u4e24\u79cd\u9650\u5236\u65b9\u5f0f,\u5176\u4e2dsoft\u8868\u793a\u8b66\u544a\u7684\u9650\u5236,hard\u8868\u793a\u771f\u6b63\u9650\u5236,nofile\u8868\u793a\u6253\u5f00\u7684\u6700\u5927\u6587\u4ef6\u6570. cat \/proc\/sys\/fs\/file-max\u67e5\u770b\u6211\u6240\u6709\u8fdb\u7a0b\u80fd\u591f\u6253\u5f00\u7684\u6700\u5927\u6587\u4ef6\u6570\u662f\u591a\u5c11,\u6bcf\u4e00\u4e2atcp\u8fde\u63a5\u4ee3\u8868\u4e00\u4e2a\u6587\u4ef6,\u5c40\u90e8\u7684\u4e0d\u80fd\u5927\u4e8e\u5168\u5c40\u7684\u9650\u5236,\u7136\u540evi etc\/sysctl.conf,\u5728\u91cc\u9762\u6dfb\u52a0fs.file-max = 102400,file-max\u8868\u793a\u5168\u5c40\u6587\u4ef6\u53e5\u67c4\u6570\u7684\u9650\u5236. client\u7aef\uff1a<\/em><\/p>\n\n\n\n \u4ece\u6d4b\u8bd5\u7684\u7ed3\u679c\u53ef\u4ee5\u8bc1\u660e,linux\u5bf9\u5916\u968f\u673a\u5206\u914d\u7684\u7aef\u53e3\u662f\u6709\u9650\u5236,\u7406\u8bba\u4e0a\u5355\u673a\u5bf9\u5916\u7aef\u53e3\u6570\u53ef\u8fbe65535,\u4f46\u5b9e\u9645\u5bf9\u5916\u53ef\u5efa\u7acb\u7684\u8fde\u63a5\u9ed8\u8ba4\u6700\u5927\u53ea\u670928232\u4e2a,\u5728linux\u4e0b\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u53ef\u77e5:<\/em><\/p>\n\n\n\n \u4e5f\u5c31\u662f\u5728\u8fd9\u4e2a\u533a\u95f4\u5185\u7684\u7aef\u53e3\u53ef\u4ee5\u4f7f\u7528,\u6240\u4ee5\u5355\u4e2aIP\u5bf9\u5916\u6700\u591a\u53ea\u80fd\u53d1\u900128232\u4e2atcp\u8bf7\u6c42. \u8981\u60f3\u6c38\u8fdc\u751f\u6548\u53ef\u4ee5\u4fee\u6539\/etc\/sysctl.conf\u6587\u4ef6,\u589e\u52a0\u4e00\u884c:<\/em><\/p>\n\n\n\n \u7136\u540e\u518d\u6267\u884c:<\/em><\/p>\n\n\n\n \u8fd9\u6837\u5c31\u6c38\u8fdc\u751f\u6548\u4e86.\u73b0\u5728\u5355ip\u53ef\u4ee5\u53d1\u8d7764510\u4e2atcp\u8fde\u63a5\u4e86. \u4f5c\u8005\uff1aBriseis <\/p>\n","protected":false},"excerpt":{"rendered":" \u524d\u8a00 \u8fd9\u662f\u4e00\u9053\u9762\u8bd5\u9898,\u4e3b\u8981\u8003\u5bdf\u7684\u662flinux\u548c\u7f51\u7edc […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[],"class_list":["post-900","post","type-post","status-publish","format-standard","hentry","category-live"],"_links":{"self":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=900"}],"version-history":[{"count":0,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/900\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5982\u4f55\u6807\u8bc6\u4e00\u4e2aTCP\u8fde\u63a5<\/strong>
\u5728\u786e\u5b9a\u6700\u5927\u8fde\u63a5\u6570\u4e4b\u524d,\u5148\u6765\u770b\u770b\u7cfb\u7edf\u5982\u4f55\u6807\u8bc6\u4e00\u4e2atcp\u8fde\u63a5.\u7cfb\u7edf\u7528\u4e00\u4e2a\u56db\u5143\u7ec4\u6765\u552f\u4e00\u6807\u8bc6\u4e00\u4e2aTCP\u8fde\u63a5:{local ip, local port,remote ip,remote port}.
\u6211\u4eec\u77e5\u9053\u5728\u7f51\u7edc\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u670d\u52a1\u7aef\u76d1\u542c\u4e00\u4e2a\u56fa\u5b9a\u7684\u7aef\u53e3,\u5ba2\u6237\u7aef\u4e3b\u52a8\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u540e\u8981\u7ecf\u8fc7\u4e09\u6b21\u63e1\u624b\u624d\u80fd\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u8d77\u4e00\u4e2atcp\u8fde\u63a5.\u5ba2\u6237\u7aef\u6bcf\u6b21\u53d1\u8d77\u4e00\u4e2atcp\u8fde\u63a5\u65f6,\u7cfb\u7edf\u4f1a\u968f\u673a\u9009\u53d6\u4e00\u4e2a\u7a7a\u95f2\u7684\u7aef\u53e3,\u8be5\u7aef\u53e3\u662f\u72ec\u5360\u7684\u4e0d\u80fd\u4e0e\u5176\u4ed6tcp\u8fde\u63a5\u5171\u4eab,\u56e0\u6b64\u7406\u8bba\u4e0a\u4e00\u53f0\u673a\u5668\u6709\u591a\u5c11\u7a7a\u95f2\u7684\u7aef\u53e3,\u5c31\u80fd\u5bf9\u5916\u53d1\u8d77\u591a\u5c11\u4e2atcp\u8fde\u63a5,\u6839\u636etcp\/ip\u534f\u8bae,\u7aef\u53e3port\u4f7f\u752816\u4f4d\u65e0\u7b26\u53f7\u6574\u6570unsigned short\u6765\u5b58\u50a8,\u56e0\u6b64\u672c\u5730\u7aef\u53e3\u4e00\u5171\u6709216<\/sup>=65536\u4e2a,\u53730-65535,\u5176\u4e2d0~1023\u662f\u9884\u7559\u7aef\u53e3,0\u6709\u7279\u6b8a\u542b\u4e49\u4e0d\u80fd\u4f7f\u7528,1024\u4ee5\u4e0b\u7aef\u53e3\u90fd\u662f\u8d85\u7ea7\u7ba1\u7406\u5458\u7528\u6237(\u5982root)\u624d\u53ef\u4ee5\u4f7f\u7528,\u56e0\u6b64\u5c31\u7b97\u4f7f\u7528root\u6743\u9650,\u4e00\u53f0\u673a\u5668\u6700\u591a\u80fd\u4f7f\u7528\u7684\u7aef\u53e3\u4e5f\u53ea\u670965535\u4e2a(\u9664\u53bb\u4e00\u4e9b\u4fdd\u7559\u7684\u548c\u5df2\u88ab\u5360\u7528\u7684\u7aef\u53e3,\u5b9e\u9645\u53ef\u80fd\u4e0d\u8db3\u8fd9\u4e2a\u6570).
\u90a3\u4e48\u4e00\u53f0\u673a\u662f\u5426\u771f\u7684\u53ef\u4ee5\u53d1\u8d7765535\u4e2atcp\u8fde\u63a5\u5462?
\u4e0b\u9762\u6211\u4eec\u7528netty\u5199\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u7684\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef,\u6765\u770b\u770b\u5728\u5355\u673alinux\u4e0b\u80fd\u53d1\u8d77\u7684\u6700\u5927tcp\u8fde\u63a5\u6570,\u5176\u4e2d\u4ee3\u7801\u4f7f\u7528\u4e86\u975e\u963b\u585e io,\u6240\u4ee5\u4e0d\u7528\u5f00\u5927\u91cf\u7684\u7ebf\u7a0b.
Server\u7aef\u4e3b\u8981\u4ee3\u7801\u5982\u4e0b:<\/strong><\/p>\n\n\n\n System.out.println(\"server starting....\");\n EventLoopGroup bossGroup = new NioEventLoopGroup();\n EventLoopGroup workerGroup = new NioEventLoopGroup();\n ServerBootstrap bootstrap = new ServerBootstrap();\n bootstrap.group(bossGroup, workerGroup);\n bootstrap.channel(NioServerSocketChannel.class);\n bootstrap.childOption(ChannelOption.SO_REUSEADDR, true);\n bootstrap.childHandler(new ConnectionCountHandler());\n int port = 8100;\n bootstrap.bind(port).addListener((ChannelFutureListener) future -> {\n System.out.println(\"bind success in port: \" + port);\n });\n System.out.println(\"server started!\");\n<\/code><\/pre>\n\n\n\n@ChannelHandler.Sharable\npublic class ConnectionCountHandler extends ChannelInboundHandlerAdapter {\n\n private AtomicInteger nConnection = new AtomicInteger();\n\n public ConnectionCountHandler() {\n Executors.newSingleThreadScheduledExecutor().scheduleAtFixedRate(() -> {\n System.out.println(\"connections: \" + nConnection.get());\n }, 0, 2, TimeUnit.SECONDS);\n }\n\n @Override\n public void channelRead(ChannelHandlerContext ctx, Object msg) {\n ByteBuf in = (ByteBuf) msg;\n }\n\n @Override\n public void channelActive(ChannelHandlerContext ctx) {\n nConnection.incrementAndGet();\n }\n\n @Override\n public void channelInactive(ChannelHandlerContext ctx) {\n }\n}\n<\/code><\/pre>\n\n\n\n System.out.println(\"client starting....\");\n EventLoopGroup eventLoopGroup = new NioEventLoopGroup();\n final Bootstrap bootstrap = new Bootstrap();\n bootstrap.group(eventLoopGroup);\n bootstrap.channel(NioSocketChannel.class);\n bootstrap.option(ChannelOption.SO_REUSEADDR, true);\n bootstrap.handler(new ChannelInitializer<SocketChannel>() {\n @Override\n protected void initChannel(SocketChannel ch) {\n ch.pipeline().addLast(new ClientHandler());\n }\n });\n while (!Thread.interrupted()) {\n try {\n ChannelFuture channelFuture = bootstrap.connect(\"192.168.56.101\", 8100);\n channelFuture.addListener((ChannelFutureListener) future -> {\n if (!future.isSuccess()) {\n System.out.println(\"connect failed, exit!:\" + future.cause().getMessage());\n }\n });\n channelFuture.get();\n } catch (Exception e) {\n e.printStackTrace();\n }\n }\n<\/code><\/pre>\n\n\n\n@ChannelHandler.Sharable\/\/\u8be5\u7c7b\u7684\u5b9e\u4f8b\u53ef\u4ee5\u88ab\u591a\u4e2achannel\u5171\u4eab\npublic class ClientHandler extends SimpleChannelInboundHandler<ByteBuf> {\n \/\/\u5728\u5230\u670d\u52a1\u5668\u7684\u8fde\u63a5\u5df2\u7ecf\u5efa\u7acb\u4e4b\u540e\u88ab\u8c03\u7528\n @Override\n public void channelActive(ChannelHandlerContext ctx) {\n ctx.writeAndFlush(Unpooled.copiedBuffer(\"Netty rocks!\", CharsetUtil.UTF_8));\n }\n\n \/\/\u5f53\u4ece\u670d\u52a1\u5668\u6536\u5230\u4e00\u6761\u6d88\u606f\u4e4b\u540e\u88ab\u8c03\u7528\n @Override\n public void channelRead0(ChannelHandlerContext ctx, ByteBuf in) {\n }\n\n \/\/\u5904\u7406\u8fc7\u7a0b\u4e2d\u5f15\u53d1\u5f02\u5e38\u65f6\u88ab\u8c03\u7528\n @Override\n public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {\n cause.printStackTrace();\n ctx.close();\n }\n}\n<\/code><\/pre>\n\n\n\njava -jar server.jar\njava -jar client.jar\n<\/code><\/pre>\n\n\n\n
\u6211\u4eec\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770blinux\u5185\u6838\u53c2\u6570:<\/em><\/p>\n\n\n\n[root@bogon local]# ulimit -a\ncore file size (blocks, -c) 0\ndata seg size (kbytes, -d) unlimited\nscheduling priority (-e) 0\nfile size (blocks, -f) unlimited\npending signals (-i) 7271\nmax locked memory (kbytes, -l) 64\nmax memory size (kbytes, -m) unlimited\nopen files (-n) 1024\npipe size (512 bytes, -p) 8\nPOSIX message queues (bytes, -q) 819200\nreal-time priority (-r) 0\nstack size (kbytes, -s) 8192\ncpu time (seconds, -t) unlimited\nmax user processes (-u) 7271\nvirtual memory (kbytes, -v) unlimited\nfile locks (-x) unlimited\n<\/code><\/pre>\n\n\n\nulimit -n 102400\n<\/code><\/pre>\n\n\n\n
\u8981\u60f3\u6c38\u4e45\u751f\u6548,\u5728\/etc\/security\/limits.conf\u6587\u4ef6\u4e2d\u914d\u7f6e\u5982\u4e0b\u4e24\u884c\uff1a<\/p>\n\n\n\n
\u4f46\u8fd9\u662f\u9488\u5bf9\u4e8e\u5355\u4e2a\u8fdb\u7a0b\u7684\u4fee\u6539,\u82e5\u60f3\u4fee\u6539\u7cfb\u7edf\u5168\u5c40\u7684\u9650\u5236,\u53ef\u4ee5\u6267\u884c\u4e0b\u9762\u7684\u64cd\u4f5c:<\/p>\n\n\n\n
\u6700\u540e\u770b\u770b\u6267\u884c\u7ed3\u679c:\u5f53server\u7aef\u8fde\u63a5\u6570\u5230\u8fbe28232\u65f6,client\u5f00\u59cb\u629b\u51fa\u5927\u91cf\u5f02\u5e38java.net.BindException: \u65e0\u6cd5\u6307\u5b9a\u88ab\u8bf7\u6c42\u7684\u5730\u5740.<\/strong>
server\u7aef:<\/em><\/p>\n\n\n\nconnections: 2627\nconnections: 4688\nconnections: 5722\nconnections: 8593\nconnections: 10048\nconnections: 13383\nconnections: 16013\nconnections: 19736\nconnections: 22628\nconnections: 26571\nconnections: 28232\nconnections: 28232\nconnections: 28232\n<\/code><\/pre>\n\n\n\nCconnect failed, exit!:\u65e0\u6cd5\u6307\u5b9a\u88ab\u8bf7\u6c42\u7684\u5730\u5740: \/192.168.56.101:8100\njava.util.concurrent.ExecutionException: io.netty.channel.AbstractChannel$AnnotatedSocketException: \u65e0\u6cd5\u6307\u5b9a\u88ab\u8bf7\u6c42\u7684\u5730\u5740: \/192.168.56.101:8100\n at io.netty.util.concurrent.AbstractFuture.get(AbstractFuture.java:41)\n at demo.test.TestClientApplication.client3(TestClientApplication.java:214)\n at demo.test.TestClientApplication.main(TestClientApplication.java:250)\n at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n at java.lang.reflect.Method.invoke(Method.java:498)\n at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)\n at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)\n at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)\n at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)\nCaused by: io.netty.channel.AbstractChannel$AnnotatedSocketException: \u65e0\u6cd5\u6307\u5b9a\u88ab\u8bf7\u6c42\u7684\u5730\u5740: \/192.168.56.101:8100\n at sun.nio.ch.Net.connect0(Native Method)\n at sun.nio.ch.Net.connect(Net.java:454)\n at sun.nio.ch.Net.connect(Net.java:446)\n at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)\n at io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:83)\n at io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:80)\n at java.security.AccessController.doPrivileged(Native Method)\n at io.netty.util.internal.SocketUtils.connect(SocketUtils.java:80)\n at io.netty.channel.socket.nio.NioSocketChannel.doConnect(NioSocketChannel.java:312)\n at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.connect(AbstractNioChannel.java:254)\n at io.netty.channel.DefaultChannelPipeline$HeadContext.connect(DefaultChannelPipeline.java:1366)\n at io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:545)\n at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:530)\n at io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:512)\n at io.netty.channel.DefaultChannelPipeline.connect(DefaultChannelPipeline.java:1024)\n at io.netty.channel.AbstractChannel.connect(AbstractChannel.java:259)\n at io.netty.bootstrap.Bootstrap$3.run(Bootstrap.java:252)\n at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)\n at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404)\n at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:464)\n at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)\n at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)\n at java.lang.Thread.run(Thread.java:748)\nCaused by: java.net.BindException: \u65e0\u6cd5\u6307\u5b9a\u88ab\u8bf7\u6c42\u7684\u5730\u5740\n<\/code><\/pre>\n\n\n\n[root@bogon local]# cat \/proc\/sys\/net\/ipv4\/ip_local_port_range\n32768 60999\n<\/code><\/pre>\n\n\n\n
\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u4e34\u65f6\u8c03\u6574\u8fd9\u4e2a\u533a\u95f4\u7684\u8303\u56f4,\u4f46\u662f\u7cfb\u7edf\u91cd\u542f\u540e\u4f1a\u8fd8\u539f\u6210\u9ed8\u8ba4\u503c.<\/em><\/p>\n\n\n\necho \"1024 65535\"> \/proc\/sys\/net\/ipv4\/ip_local_port_range\n<\/code><\/pre>\n\n\n\nnet.ipv4.ip_local_port_range= 1024 65535\n<\/code><\/pre>\n\n\n\nsysctl -p\n<\/code><\/pre>\n\n\n\n
\u6269\u5c55<\/strong>
\u5355\u673a\u6700\u591a\u67096w\u591a\u8fde\u63a5,\u82e5\u60f3\u6a21\u62df\u5b9e\u73b0\u767e\u4e07\u7ea7\u522b\u7684\u5ba2\u6237\u7aef\u8fde\u63a5,\u81f3\u5c11\u9700\u8981\u5341\u51e0\u53f0\u673a\u5668\u4ee5\u4e0a,\u5f53\u7136\u4e5f\u53ef\u4ee5\u5728\u5355\u673a\u4e0a\u4f7f\u7528\u591a\u4e2a\u865a\u62dfip\u6765\u6a21\u62df\u5b9e\u73b0.
\u524d\u9762\u7814\u7a76\u7684\u662fclient\u80fd\u5efa\u7acb\u7684\u6700\u5927tcp\u8fde\u63a5\u6570,\u800cserver\u80fd\u63a5\u6536\u7684\u6700\u5927tcp\u8fde\u63a5\u6570\u53c8\u662f\u591a\u5c11\u5462?
\u7406\u8bba\u4e0a\u662f\u65e0\u4e0a\u9650\u7684,server\u901a\u5e38\u56fa\u5b9a\u5728\u67d0\u4e2a\u672c\u5730\u7aef\u53e3\u4e0a\u76d1\u542cclient\u7684\u8fde\u63a5\u8bf7\u6c42.\u4e0d\u8003\u8651\u5730\u5740\u91cd\u7528(unix\u7684SO_REUSEADDR\u9009\u9879)\u7684\u60c5\u51b5\u4e0b,\u5373\u4f7fserver\u7aef\u6709\u591a\u4e2aip,\u672c\u5730\u76d1\u542c\u7aef\u53e3\u4e5f\u662f\u72ec\u5360\u7684,\u56e0\u6b64server\u7aeftcp\u8fde\u63a54\u5143\u7ec4\u4e2d\u53ea\u6709remote ip(\u4e5f\u5c31\u662fclient ip)\u548cremote port(\u5ba2\u6237\u7aefport)\u662f\u53ef\u53d8\u7684,\u56e0\u6b64\u6700\u5927tcp\u8fde\u63a5\u4e3a\u5ba2\u6237\u7aefip\u6570\u00d7\u5ba2\u6237\u7aefport\u6570,\u5bf9\u4e8eIPV4,\u4e0d\u8003\u8651ip\u5730\u5740\u5206\u7c7b\u7b49\u56e0\u7d20,\u6700\u5927tcp\u8fde\u63a5\u6570\u7ea6\u4e3a2\u768432\u6b21\u65b9(ip\u6570)\u00d72\u768416\u6b21\u65b9(port\u6570),\u4e5f\u5c31\u662fserver\u7aef\u5355\u4e2aip\u5355\u4e2a\u7aef\u53e3\u6700\u5927tcp\u8fde\u63a5\u6570\u7ea6\u4e3a2\u768448\u6b21\u65b9.
\u4f46\u662f\u5728\u5b9e\u9645\u73af\u5883\u4e2d,\u53d7\u5230\u670d\u52a1\u5668\u914d\u7f6e\u7b49\u7269\u7406\u6761\u4ef6\u7684\u5236\u7ea6,\u5176\u6700\u5927\u5e76\u53d1tcp\u8fde\u63a5\u6570\u8fdc\u4e0d\u80fd\u8fbe\u5230\u7406\u8bba\u503c,\u4e0d\u8fc7\u901a\u8fc7\u589e\u52a0\u5185\u5b58\u3001\u4fee\u6539\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2a\u6570\u7b49\u53c2\u6570,\u5355\u673a\u6700\u5927\u5e76\u53d1TCP\u8fde\u63a5\u6570\u662f\u53ef\u4ee5\u8fbe\u523010\u4e07,\u751a\u81f3\u4e0a\u767e\u4e07\u7684.
\u53c2\u8003\uff1a
https:\/\/my.oschina.net\/yang1992\/blog\/522533<\/a>
https:\/\/colobu.com\/2015\/05\/22\/implement-C1000K-servers-by-spray-netty-undertow-and-node-js\/<\/a>
https:\/\/www.dozer.cc\/2014\/12\/netty-long-connection.html<\/a>
https:\/\/blog.csdn.net\/Wing_93\/article\/details\/81676314<\/a>
http:\/\/www.blogjava.net\/yongboy\/archive\/2013\/04\/09\/397559.html<\/a><\/p>\n\n\n\n
\u94fe\u63a5\uff1ahttps:\/\/www.jianshu.com\/p\/c77e7026531a
\u6765\u6e90\uff1a\u7b80\u4e66
\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\u3002\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u8054\u7cfb\u4f5c\u8005\u83b7\u5f97\u6388\u6743\uff0c\u975e\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u3002<\/p>\n\n\n\n