bind(port)与.localAddress(new InetSocketAddress(port))区别

最新推荐文章于 2025-08-02 15:44:59 发布
转载 最新推荐文章于 2025-08-02 15:44:59 发布 · 742 阅读 · 0 ·
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原文链接：http://www.cnblogs.com/bihanghang/p/10174280.html

两者并没有什么区别，最后都会调用AbstractBootstrap这个抽象类的bind()方法。

转载于:https://www.cnblogs.com/bihanghang/p/10174280.html

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client.sendRequest(request); assertThat(response).isNull(); // 预期超时返回null // 清理资源 client.shutdown(); nonResponsiveServer.shutdown(); nonResponsiveServerThread.join(3000); } @Test @Timeout(value = 10, unit = TimeUnit.SECONDS) // 防止测试卡住 void testNormalCommunication() throws InterruptedException { // 初始化客户端 TcpClient client = new TcpClient("127.0.0.1", TEST_PORT); client.connect(); // 构造请求 GreetRequest request = new GreetRequest(); request.setName("TestUser"); // 发送请求并等待响应 GreetResponse response = client.sendRequest(request); // 验证响应 assertThat(response).isNotNull(); assertThat(response.getMessage()).isEqualTo("Hello, TestUser!"); // 关闭客户端 client.shutdown(); }报错Exception in thread "Thread-3" java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:461) at sun.nio.ch.Net.bind(Net.java:453) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:222) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:148) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:434) at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1353) at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:492) at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:471) at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:994) at io.netty.channel.Channel.bind(Channel.java:302) at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:380) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at --- Async.Stack.Trace --- (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.bootstrap.AbstractBootstrap.doBind0(AbstractBootstrap.java:376) at io.netty.bootstrap.AbstractBootstrap.access$000(AbstractBootstrap.java:54) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:315) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:302) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:118) at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84) at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetSuccess(AbstractChannel.java:861) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:385) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:374) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:110) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:78) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:73) at io.netty.channel.nio.AbstractNioChannel.lambda$doRegister$0(AbstractNioChannel.java:465) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:198) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:36) at io.netty.channel.nio.AbstractNioChannel.doRegister(AbstractNioChannel.java:462) at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:408) at io.netty.channel.AbstractChannel$AbstractUnsafe.access$300(AbstractChannel.java:288) at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:352) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at --- Async.Stack.Trace --- (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.channel.AbstractChannel$AbstractUnsafe.register(AbstractChannel.java:349) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:119) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:113) at io.netty.channel.MultithreadEventLoopGroup.register(MultithreadEventLoopGroup.java:86) at io.netty.bootstrap.AbstractBootstrap.initAndRegister(AbstractBootstrap.java:339) at io.netty.bootstrap.AbstractBootstrap.doBind(AbstractBootstrap.java:288) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:284) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:262) at server.TcpServer.start(TcpServer.java:75) at TcpServerClientTest.lambda$startServer$0(TcpServerClientTest.java:45) at java.lang.Thread.run(Thread.java:750) Suppressed: java.util.concurrent.CompletionException: Rethrowing promise failure cause at io.netty.util.concurrent.DefaultPromise.rethrowIfFailed(DefaultPromise.java:685) at io.netty.util.concurrent.DefaultPromise.sync(DefaultPromise.java:419) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:119) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:30) ... 3 more Exception in thread “Thread-4” java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:461) at sun.nio.ch.Net.bind(Net.java:453) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:222) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:148) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:434) at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1353) at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:492) at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:471) at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:994) at io.netty.channel.Channel.bind(Channel.java:302) at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:380) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at — Async.Stack.Trace — (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.bootstrap.AbstractBootstrap.doBind0(AbstractBootstrap.java:376) at io.netty.bootstrap.AbstractBootstrap.access$000(AbstractBootstrap.java:54) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:315) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:302) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:118) at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84) at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetSuccess(AbstractChannel.java:861) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:385) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:374) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:110) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:78) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:73) at io.netty.channel.nio.AbstractNioChannel.lambda$doRegister$0(AbstractNioChannel.java:465) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:198) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:36) at io.netty.channel.nio.AbstractNioChannel.doRegister(AbstractNioChannel.java:462) at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:408) at io.netty.channel.AbstractChannel$AbstractUnsafe.access$300(AbstractChannel.java:288) at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:352) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at — Async.Stack.Trace — (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.channel.AbstractChannel$AbstractUnsafe.register(AbstractChannel.java:349) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:119) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:113) at io.netty.channel.MultithreadEventLoopGroup.register(MultithreadEventLoopGroup.java:86) at io.netty.bootstrap.AbstractBootstrap.initAndRegister(AbstractBootstrap.java:339) at io.netty.bootstrap.AbstractBootstrap.doBind(AbstractBootstrap.java:288) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:284) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:262) at server.TcpServer.start(TcpServer.java:75) at TcpServerClientTest.lambda$testResponseTimeout$1(TcpServerClientTest.java:119) at java.lang.Thread.run(Thread.java:750) Suppressed: java.util.concurrent.CompletionException: Rethrowing promise failure cause at io.netty.util.concurrent.DefaultPromise.rethrowIfFailed(DefaultPromise.java:685) at io.netty.util.concurrent.DefaultPromise.sync(DefaultPromise.java:419) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:119) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:30) … 3 more [main] INFO client.TcpClient - 客户端连接成功，目标地址：127.0.0.1:8080 Duplicate field name “$hits$” with signature “[I” in class file io/netty/buffer/AllocateChunkEvent JfrClassAdapter: unable to create InstanceKlass Duplicate field name “$hits$” with signature “[I” in class file io/netty/buffer/AllocateBufferEvent JfrClassAdapter: unable to create InstanceKlass Duplicate field name “$hits$” with signature “[I” in class file io/netty/buffer/FreeBufferEvent JfrClassAdapter: unable to create InstanceKlass [main] INFO server.TcpServer - 服务器已关闭 org.opentest4j.AssertionFailedError: expected: null but was: model.GreetResponse@e7529ac 预期:null 实际:model.GreetResponse@e7529ac；Exception in thread “Thread-5” java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:461) at sun.nio.ch.Net.bind(Net.java:453) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:222) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:148) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:434) at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1353) at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:492) at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:471) at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:994) at io.netty.channel.Channel.bind(Channel.java:302) at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:380) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at — Async.Stack.Trace — (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.bootstrap.AbstractBootstrap.doBind0(AbstractBootstrap.java:376) at io.netty.bootstrap.AbstractBootstrap.access$000(AbstractBootstrap.java:54) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:315) at io.netty.bootstrap.AbstractBootstrap$1.operationComplete(AbstractBootstrap.java:302) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:118) at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84) at io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetSuccess(AbstractChannel.java:861) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:385) at io.netty.channel.AbstractChannel$AbstractUnsafe$2.operationComplete(AbstractChannel.java:374) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649) at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638) at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:110) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:78) at io.netty.channel.DefaultChannelPromise.setSuccess(DefaultChannelPromise.java:73) at io.netty.channel.nio.AbstractNioChannel.lambda$doRegister$0(AbstractNioChannel.java:465) at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603) at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:570) at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:198) at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:36) at io.netty.channel.nio.AbstractNioChannel.doRegister(AbstractNioChannel.java:462) at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:408) at io.netty.channel.AbstractChannel$AbstractUnsafe.access$300(AbstractChannel.java:288) at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:352) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:141) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) at — Async.Stack.Trace — (captured by IntelliJ IDEA debugger) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:907) at io.netty.util.concurrent.SingleThreadEventExecutor.execute0(SingleThreadEventExecutor.java:873) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:863) at io.netty.channel.AbstractChannel$AbstractUnsafe.register(AbstractChannel.java:349) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:119) at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:113) at io.netty.channel.MultithreadEventLoopGroup.register(MultithreadEventLoopGroup.java:86) at io.netty.bootstrap.AbstractBootstrap.initAndRegister(AbstractBootstrap.java:339) at io.netty.bootstrap.AbstractBootstrap.doBind(AbstractBootstrap.java:288) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:284) at io.netty.bootstrap.AbstractBootstrap.bind(AbstractBootstrap.java:262) at server.TcpServer.start(TcpServer.java:75) at TcpServerClientTest.lambda$startServer$0(TcpServerClientTest.java:45) at java.lang.Thread.run(Thread.java:750) Suppressed: java.util.concurrent.CompletionException: Rethrowing promise failure cause at io.netty.util.concurrent.DefaultPromise.rethrowIfFailed(DefaultPromise.java:685) at io.netty.util.concurrent.DefaultPromise.sync(DefaultPromise.java:419) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:119) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:30) … 3 more [main] INFO server.TcpServer - 服务器已关闭 [main] INFO client.TcpClient - 客户端连接成功，目标地址：127.0.0.1:8080 [main] INFO client.TcpClient - 客户端已关闭 [main] INFO server.TcpServer - 服务器已关闭 org.opentest4j.AssertionFailedError: Expecting value to be true but was false 预期:true 实际:false 请分析原因并尝试解决
08-23
int port = ((InetSocketAddress) future.channel().localAddress()).getPort(); ``` 然后，将这个端口传递给客户端。 由于测试代码结构，我们需要调整服务器启动方式，使其能够返回实际绑定的端口。然后，在...
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ss.bind(new InetSocketAddress(port)); ``` ##### 方法 D 修改操作系统的动态端口范围 特别是在涉及到复杂计算模型或是频繁短时间交互业务逻辑设计之时，适当扩大可用区间有助于减少碰撞几率。于 windows 上可通过...
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m0_37206037的博客
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通过bind绑定本机地址(local addr)以及端口(localport), 实现从本机端口(local port)发送以及监听; 通过connect指定目的地址(dst addr)以及目的端口(dst port), 实现目标地址的绑定; dst_addr.sin_family = AF_INET; dst_addr.sin_addr.s_addr = inet_addr(dstIP); dst_addr.sin_port = htons(dstPort); .
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文章转载自:https://zhuanlan.zhihu.com/p/25622566 本文只是保存下，方便以后学习 说起网络 socket，大家自然会想到 TCP ，用的最多也是 TCP，UDP 在大家的印象中是作为 TCP 的补充而存在，是无连接、不可靠、无序、无流量控制的传输层协议。UDP的无连接性已经深入人心，协议上的无连接性指的是一个 UDP 的 Endpoint1(IP,PORT)，可以向多个 UDP 的 Endpointi ( IP ， PORT )发送数据包，也可以接收来自多个 UDP 的
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weixin_30907935的博客
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IP地址的记法： IP地址由四个字节构成，为了方便阅读和书写，每个字节用0-255的数字表示，字节之间用'.'分割，如： 10.10.152.235 有时候我们会看到这样的IP： 10.10.152.235/24， 后面的/24表示子网掩码，24表示子网掩码上有24个1，等价于255.255.255.0 。 IP地址和子网掩码按位 与，得到的是 网络号（Network ID）， 剩余的部...
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duoerbasilu
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Netty提供异步的、事件驱动的网络应用程序框架和工具，用以快速开发高性能、高可靠性的网络服务器和客户端程序[官方定义]，整体来看其包含了以下内容：1.提供了丰富的协议编解码支持，2.实现自有的buffer系统，减少复制所带来的消耗，3.整套channel的实现，4.基于事件的过程流转以及完整的网络事件响应与扩展，5.丰富的example。本文并不对Netty实际使用中可能出现的问题做分析...
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清风明月独相伴
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第四篇：数据传输的简介 4.Transports · Transports(传输) · NIO(non-blocking IO,New IO), OIO(Old IO,blocking IO), Local(本地), Embedded(嵌入式) · Use-case(用例) · APIs(接口)         网络应用程序一个很重要的工作是传输数据。传输数据的过程不一样取决是使用哪种
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海向的博客
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package com.address.anqi;import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.UnknownHostException; /* 1.>InetAddress 构造：（没有构造方法） static InetAddress getByNa
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1.    Socket(TCP/IP)通讯,需要两端的Socket都持有连接,当Client端去远端connect时(成功之前),首先会bind到本地的一个可用的端口(可以通过socket.bind(InetAddress)来手动指定),可以通过socket.boud()检测是否已经bind成功. 尽管Socket Client端建立连接时bind的端口通常我们不关心,但是这是TCP建立连...
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lonely_baby的博客
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