{"id":19750,"date":"2025-04-19T02:12:59","date_gmt":"2025-04-18T18:12:59","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/19750.html"},"modified":"2025-04-19T02:12:59","modified_gmt":"2025-04-18T18:12:59","slug":"netty%e6%98%af%e4%b8%80%e4%b8%aa%e5%9f%ba%e4%ba%8ejava%e7%9a%84%e5%bc%82%e6%ad%a5%e4%ba%8b%e4%bb%b6%e9%a9%b1%e5%8a%a8%e7%9a%84%e7%bd%91%e7%bb%9c%e5%ba%94%e7%94%a8%e6%a1%86%e6%9e%b6%ef%bc%8c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/19750.html","title":{"rendered":"Netty\u662f\u4e00\u4e2a\u57fa\u4e8eJava\u7684\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6\uff0c\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef"},"content":{"rendered":"

Netty\u662f\u4e00\u4e2a\u57fa\u4e8eJava\u7684\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6，\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u5b83\u80fd\u591f\u4e0e\u591a\u79cd\u6846\u67b6\u7ed3\u5408\u4f7f\u7528，\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u529f\u80fd\u9700\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u53ef\u4ee5\u4e0eNetty\u7ed3\u5408\u4f7f\u7528\u7684\u6846\u67b6：<\/p>\n

  • Spring Boot：\u901a\u8fc7Spring Boot\u96c6\u6210Netty，\u53ef\u4ee5\u5229\u7528Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u3001\u7ba1\u7406\u7b49\u529f\u80fd\u7b80\u5316Netty\u5e94\u7528\u7684\u5f00\u53d1\u548c\u7ba1\u7406\u3002<\/li>\n
  • MyBatis：MyBatis\u662f\u4e00\u4e2a\u4f18\u79c0\u7684\u6301\u4e45\u5c42\u6846\u67b6，\u5b83\u53ef\u4ee5\u4e0eNetty\u7ed3\u5408\u4f7f\u7528，\u5904\u7406\u6570\u636e\u5e93\u64cd\u4f5c，\u9002\u7528\u4e8e\u9700\u8981\u7f51\u7edc\u901a\u4fe1\u5e76\u4e14\u6d89\u53ca\u5230\u6570\u636e\u6301\u4e45\u5316\u7684\u573a\u666f\u3002<\/li>\n
  • Dubbo：Dubbo\u662f\u963f\u91cc\u5df4\u5df4\u5f00\u6e90\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u670d\u52a1\u6846\u67b6，\u5b83\u652f\u6301\u591a\u79cd\u534f\u8bae，\u5305\u62ecNetty\u3002\u901a\u8fc7Netty\u4f20\u8f93RPC\u8c03\u7528，\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u7684\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u3002<\/li>\n
  • gRPC：gRPC\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u901a\u7528\u7684\u5f00\u6e90RPC\u6846\u67b6，\u5176\u6838\u5fc3\u662f\u57fa\u4e8eHTTP\/2\u534f\u8bae\u8bbe\u8ba1\u7684\u3002Netty\u53ef\u4ee5\u4f5c\u4e3agRPC\u7684\u5e95\u5c42\u4f20\u8f93\u5b9e\u73b0，\u63d0\u4f9b\u9ad8\u6548\u7684\u7f51\u7edc\u901a\u4fe1\u80fd\u529b\u3002<\/li>\n
  • Vert.x：Vert.x\u662f\u4e00\u4e2a\u7528\u4e8e\u6784\u5efa\u53cd\u5e94\u5f0f\u5e94\u7528\u7a0b\u5e8f\u7684\u5de5\u5177\u5305，\u5b83\u4e5f\u53ef\u4ee5\u4f7f\u7528Netty\u4f5c\u4e3a\u5176\u5e95\u5c42\u7684TCP\/UDP\u4f20\u8f93\u5b9e\u73b0\u3002<\/li>\n

    Netty\u4e0eSpring Boot\u7684\u96c6\u6210\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0，\u5176\u4e2d\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5982spring-boot-starter-netty\u3002\u4ee5\u4e0b\u662f\u96c6\u6210\u7684\u57fa\u672c\u6b65\u9aa4：<\/p>\n

  • \n

    \u6dfb\u52a0\u4f9d\u8d56：\u9996\u5148，\u5728\u4f60\u7684Spring Boot\u9879\u76ee\u7684pom.xml\u6587\u4ef6\u4e2d\u6dfb\u52a0Netty\u76f8\u5173\u7684\u4f9d\u8d56\u3002\u4f8b\u5982，\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fMaven，\u53ef\u4ee5\u6dfb\u52a0\u5982\u4e0b\u4f9d\u8d56：<\/p>\n

    <<\/span>dependency<\/span>><\/span><\/span>
    \n <<\/span>groupId<\/span>><\/span><\/span>io.netty<\/<\/span>groupId<\/span>><\/span><\/span>
    \n <<\/span>artifactId<\/span>><\/span><\/span>netty-all<\/<\/span>artifactId<\/span>><\/span><\/span>
    \n <<\/span>version<\/span>><\/span><\/span>4.1.63.Final<\/<\/span>version<\/span>><\/span><\/span>
    \n<\/<\/span>dependency<\/span>><\/span><\/span>\n <\/li>\n

  • \n

    \u914d\u7f6eNetty\u670d\u52a1\u5668：\u5728Spring Boot\u5e94\u7528\u4e2d，\u4f60\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u914d\u7f6e\u7c7b\u6765\u8bbe\u7f6e\u548c\u542f\u52a8Netty\u670d\u52a1\u5668\u3002\u8fd9\u4e2a\u7c7b\u9700\u8981\u5b9e\u73b0WebSocketInitializer\u63a5\u53e3，\u5e76\u91cd\u5199init\u65b9\u6cd5\u6765\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684ChannelHandler\u3002<\/p>\n

    import<\/span> org.<\/span>springframework.<\/span>web.<\/span>socket.<\/span>server.<\/span>standard.<\/span><\/span>ServerEndpointExporter<\/span><\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>web.<\/span>socket.<\/span>server.<\/span>standard.<\/span><\/span>ServerEndpointRegistration<\/span><\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>context.<\/span>annotation.<\/span><\/span>Bean<\/span><\/span>;<\/span>
    \nimport<\/span> org.<\/span>springframework.<\/span>context.<\/span>annotation.<\/span><\/span>Configuration<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>channel.<\/span><\/span>ChannelInitializer<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>channel.<\/span>socket.<\/span><\/span>SocketChannel<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>handler.<\/span>codec.<\/span>http.<\/span><\/span>HttpObjectAggregator<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>handler.<\/span>codec.<\/span>http.<\/span><\/span>HttpServerCodec<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>handler.<\/span>codec.<\/span>http.<\/span>websocketx.<\/span><\/span>WebSocketFrameAggregator<\/span><\/span>;<\/span>
    \nimport<\/span> io.<\/span>netty.<\/span>handler.<\/span>stream.<\/span><\/span>ChunkedWriteHandler<\/span><\/span>;<\/span><\/p>\n

    @Configuration<\/span>
    \npublic<\/span> class<\/span> NettyConfig<\/span> {<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> ServerEndpointExporter<\/span> serverEndpointExporter<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> new<\/span> ServerEndpointExporter<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> ServerEndpointRegistration<\/span> customServerEndpoint<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> new<\/span> ServerEndpointRegistration<\/span>(<\/span>"\/custom"<\/span>,<\/span> CustomServerEndpoint<\/span>.<\/span>class<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> ChannelInitializer<\/span><<\/span>SocketChannel<\/span>><\/span><\/span> channelInitializer<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> new<\/span> ChannelInitializer<\/span><<\/span>SocketChannel<\/span>><\/span><\/span>(<\/span>)<\/span> {<\/span>
    \n @Override<\/span>
    \n protected<\/span> void<\/span> initChannel<\/span>(<\/span>SocketChannel<\/span> ch)<\/span> throws<\/span> Exception<\/span> {<\/span>
    \n ch.<\/span>pipeline<\/span>(<\/span>)<\/span>.<\/span>addLast<\/span>(<\/span>new<\/span> HttpServerCodec<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n ch.<\/span>pipeline<\/span>(<\/span>)<\/span>.<\/span>addLast<\/span>(<\/span>new<\/span> ChunkedWriteHandler<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n ch.<\/span>pipeline<\/span>(<\/span>)<\/span>.<\/span>addLast<\/span>(<\/span>new<\/span> HttpObjectAggregator<\/span>(<\/span>65536<\/span>)<\/span>)<\/span>;<\/span>
    \n ch.<\/span>pipeline<\/span>(<\/span>)<\/span>.<\/span>addLast<\/span>(<\/span>new<\/span> WebSocketFrameAggregator<\/span>(<\/span>65536<\/span>)<\/span>)<\/span>;<\/span>
    \n \/\/ \u8fd9\u91cc\u53ef\u4ee5\u6dfb\u52a0\u66f4\u591a\u81ea\u5b9a\u4e49\u7684\u5904\u7406\u5668<\/span>
    \n }<\/span>
    \n }<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span>\n <\/li>\n

  • \n

    \u521b\u5efaWebSocket\u7aef\u70b9：\u5b9a\u4e49\u4e00\u4e2a\u7ee7\u627f\u81eaWebSocketEndpoint\u7684\u7c7b，\u7528\u4e8e\u5904\u7406WebSocket\u8fde\u63a5\u548c\u6d88\u606f\u3002<\/p>\n

    import<\/span> javax.<\/span>websocket.<\/span><\/span>OnMessage<\/span><\/span>;<\/span>
    \nimport<\/span> javax.<\/span>websocket.<\/span>server.<\/span><\/span>ServerEndpoint<\/span><\/span>;<\/span>
    \nimport<\/span> java.<\/span>io.<\/span><\/span>IOException<\/span><\/span>;<\/span><\/p>\n

    @ServerEndpoint<\/span>(<\/span>"\/custom"<\/span>)<\/span>
    \npublic<\/span> class<\/span> CustomServerEndpoint<\/span> {<\/span><\/p>\n

    @OnMessage<\/span>
    \n public<\/span> void<\/span> onMessage<\/span>(<\/span>String<\/span> message,<\/span> Session<\/span> session)<\/span> throws<\/span> IOException<\/span> {<\/span>
    \n session.<\/span>getBasicRemote<\/span>(<\/span>)<\/span>.<\/span>sendText<\/span>(<\/span>"Received: "<\/span> +<\/span> message)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span>\n <\/li>\n

    \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4，\u4f60\u53ef\u4ee5\u5728Spring Boot\u5e94\u7528\u4e2d\u96c6\u6210Netty，\u5229\u7528Netty\u7684\u9ad8\u6027\u80fd\u7f51\u7edc\u901a\u4fe1\u80fd\u529b\u6765\u5904\u7406WebSocket\u8fde\u63a5\u7b49\u9700\u6c42\u3002 Netty\u4e0eSpring Boot\u96c6\u6210\u7684\u4f18\u52bf\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762：<\/p>\n

  • \n

    \u9ad8\u6027\u80fd\u548c\u9ad8\u5e76\u53d1：Netty\u662f\u57fa\u4e8eNIO（\u975e\u963b\u585eI\/O）\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u7f16\u7a0b\u6846\u67b6，\u5b83\u652f\u6301\u5f02\u6b65\u901a\u4fe1，\u80fd\u591f\u5904\u7406\u5927\u91cf\u7684\u5e76\u53d1\u8fde\u63a5\u3002\u8fd9\u4f7f\u5f97Netty\u975e\u5e38\u9002\u5408\u7528\u4e8e\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u5e76\u53d1\u7684\u573a\u666f，\u4f8b\u5982\u5b9e\u65f6\u901a\u8baf\u3001\u5728\u7ebf\u6e38\u620f\u7b49\u3002<\/p>\n<\/li>\n

  • \n

    \u6613\u7528\u6027：\u901a\u8fc7Spring Boot\u96c6\u6210Netty，\u53ef\u4ee5\u5229\u7528Spring Boot\u7684\u81ea\u52a8\u914d\u7f6e\u548c\u4f9d\u8d56\u6ce8\u5165\u7279\u6027，\u7b80\u5316\u4e86Netty\u7684\u4f7f\u7528\u548c\u914d\u7f6e\u8fc7\u7a0b\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u52a0\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u903b\u8f91\u7684\u5b9e\u73b0，\u800c\u4e0d\u9700\u8981\u5173\u5fc3\u5e95\u5c42\u7684\u7f51\u7edc\u901a\u4fe1\u7ec6\u8282\u3002<\/p>\n<\/li>\n

  • \n

    \u7075\u6d3b\u6027：Netty\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\u548c\u6269\u5c55\u70b9，\u53ef\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u7f51\u7edc\u901a\u4fe1\u9700\u6c42\u3002\u540c\u65f6，Spring Boot\u7684\u751f\u6001\u7cfb\u7edf\u4e30\u5bcc，\u53ef\u4ee5\u65b9\u4fbf\u5730\u4e0e\u5176\u4ed6Spring\u7ec4\u4ef6\u8fdb\u884c\u96c6\u6210，\u5982Spring Data\u3001Spring Security\u7b49，\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u548c\u7cfb\u7edf\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/li>\n

  • \n

    \u793e\u533a\u652f\u6301：Netty\u548cSpring Boot\u90fd\u662f\u975e\u5e38\u6210\u719f\u7684\u5f00\u6e90\u9879\u76ee，\u62e5\u6709\u6d3b\u8dc3\u7684\u793e\u533a\u548c\u4e30\u5bcc\u7684\u6587\u6863\u8d44\u6e90\u3002\u8fd9\u610f\u5473\u7740\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\u65f6，\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u627e\u5230\u89e3\u51b3\u65b9\u6848\u6216\u83b7\u5f97\u793e\u533a\u7684\u5e2e\u52a9\u3002<\/p>\n<\/li>\n

    Netty\u662f\u4e00\u4e2a\u57fa\u4e8eJava\u7684\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6，\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u5b83\u901a\u8fc7\u975e\u963b\u585eI\/O\u64cd\u4f5c\u548c\u4e8b\u4ef6\u9a71\u52a8\u673a\u5236\u6765\u5b9e\u73b0\u9ad8\u6548\u7684\u5f02\u6b65\u901a\u4fe1\u3002\u4ee5\u4e0b\u662fNetty\u5b9e\u73b0\u5f02\u6b65\u901a\u4fe1\u7684\u51e0\u4e2a\u5173\u952e\u673a\u5236：<\/p>\n

  • \n

    \u975e\u963b\u585eI\/O: Netty\u4f7f\u7528Java NIO（\u975e\u963b\u585eI\/O）\u6765\u5904\u7406\u7f51\u7edc\u901a\u4fe1，\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u4f1a\u5728\u8bfb\u5199\u64cd\u4f5c\u4e0a\u963b\u585e\u7ebf\u7a0b，\u4ece\u800c\u63d0\u9ad8\u4e86\u6027\u80fd\u548c\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n<\/li>\n

  • \n

    \u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b: Netty\u91c7\u7528\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b\u6765\u5904\u7406\u7f51\u7edc\u4e8b\u4ef6，\u5982\u8fde\u63a5\u3001\u8bfb\u53d6\u3001\u5199\u5165\u7b49\u3002\u5f53\u8fd9\u4e9b\u4e8b\u4ef6\u53d1\u751f\u65f6，\u4f1a\u89e6\u53d1\u76f8\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u5668（Handler），\u4ece\u800c\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002<\/p>\n<\/li>\n

  • \n

    Channel\u548cPipeline: Netty\u4e2d\u7684Channel\u4ee3\u8868\u4e86\u7f51\u7edc\u5957\u63a5\u5b57，\u662f\u6570\u636e\u8bfb\u5199\u7684\u57fa\u672c\u5355\u4f4d\u3002Pipeline\u5219\u662f\u5904\u7406Channel\u4e2d\u4e8b\u4ef6\u7684\u94fe\u5f0f\u7ed3\u6784，\u5305\u542b\u4e86\u591a\u4e2aHandler，\u6bcf\u4e2aHandler\u8d1f\u8d23\u5904\u7406\u7279\u5b9a\u7c7b\u578b\u7684\u4e8b\u4ef6\u3002<\/p>\n<\/li>\n

  • \n

    Selector\u673a\u5236: Netty\u5185\u90e8\u4f7f\u7528Selector\u673a\u5236\u6765\u7ba1\u7406\u591a\u4e2aChannel，Selector\u53ef\u4ee5\u76d1\u63a7\u591a\u4e2aChannel\u7684\u4e8b\u4ef6，\u5f53\u67d0\u4e2aChannel\u5c31\u7eea\u65f6，\u5b83\u4f1a\u901a\u77e5\u5e94\u7528\u7a0b\u5e8f\u8fdb\u884c\u76f8\u5e94\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<\/li>\n

  • \n

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