{"id":48786,"date":"2025-07-30T13:22:55","date_gmt":"2025-07-30T05:22:55","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48786.html"},"modified":"2025-07-30T13:22:55","modified_gmt":"2025-07-30T05:22:55","slug":"netty-%e6%98%af%e4%b8%80%e4%b8%aa%e9%ab%98%e6%80%a7%e8%83%bd%e3%80%81%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","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48786.html","title":{"rendered":"Netty \u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\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":"<h2>\u56de\u6eaf Netty<\/h2>\n<p>Netty \u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6&#xff0c;\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u4e0b\u9762\u662f\u5bf9 Netty \u7684\u7b80\u8981\u56de\u6eaf&#xff1a;<\/p>\n<h3>Netty \u7684\u8d77\u6e90<\/h3>\n<p>Netty \u6700\u521d\u7531 JBoss \u793e\u533a\u5f00\u53d1&#xff0c;\u4f5c\u4e3a\u65e9\u671f\u7f51\u7edc\u6846\u67b6&#xff08;\u5982 Apache MINA&#xff09;\u7684\u66ff\u4ee3\u54c1&#xff0c;\u65e8\u5728\u63d0\u4f9b\u66f4\u7b80\u5355\u3001\u66f4\u9ad8\u6548\u7684 NIO \u7f16\u7a0b\u6a21\u578b\u3002<\/p>\n<h3>\u4e3b\u8981\u7248\u672c\u6f14\u8fdb<\/h3>\n<li>\n<p>Netty 3.x (2008-2012)<\/p>\n<ul>\n<li>\u7b2c\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u7248\u672c<\/li>\n<li>\u5f15\u5165\u4e86 ChannelPipeline \u548c ChannelHandler \u6982\u5ff5<\/li>\n<li>\u652f\u6301\u963b\u585e\u548c\u975e\u963b\u585e I\/O<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Netty 4.x (2013-2019)<\/p>\n<ul>\n<li>\u91cd\u5927\u91cd\u6784&#xff0c;API \u4e0d\u517c\u5bb9 3.x<\/li>\n<li>\u5f15\u5165\u65b0\u7684\u5185\u5b58\u7ba1\u7406\u6a21\u578b&#xff08;ByteBuf&#xff09;<\/li>\n<li>\u6539\u8fdb\u7ebf\u7a0b\u6a21\u578b\u548c\u8d44\u6e90\u7ba1\u7406<\/li>\n<li>\u66f4\u597d\u7684\u6027\u80fd\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Netty 5.x (2015-2016)<\/p>\n<ul>\n<li>\u77ed\u6682\u5b58\u5728\u7684\u7248\u672c&#xff0c;\u540e\u88ab\u5e9f\u5f03<\/li>\n<li>\u5c1d\u8bd5\u7edf\u4e00\u963b\u585e\u548c\u975e\u963b\u585e API<\/li>\n<li>\u7531\u4e8e\u517c\u5bb9\u6027\u95ee\u9898\u88ab\u653e\u5f03<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Netty 4.1.x (2016-\u81f3\u4eca)<\/p>\n<ul>\n<li>\u957f\u671f\u652f\u6301\u7248\u672c<\/li>\n<li>\u6dfb\u52a0 HTTP\/2 \u652f\u6301<\/li>\n<li>\u6539\u8fdb\u5bf9 TLS \u7684\u652f\u6301<\/li>\n<li>\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027<\/li>\n<\/ul>\n<\/li>\n<h3>\u6838\u5fc3\u7279\u6027<\/h3>\n<ul>\n<li>\u5f02\u6b65\u548c\u4e8b\u4ef6\u9a71\u52a8&#xff1a;\u57fa\u4e8e NIO \u7684\u975e\u963b\u585e I\/O<\/li>\n<li>\u7edf\u4e00\u7684 API&#xff1a;\u652f\u6301\u591a\u79cd\u4f20\u8f93\u7c7b\u578b&#xff08;TCP\u3001UDP\u3001\u6587\u4ef6\u7b49&#xff09;<\/li>\n<li>\u7075\u6d3b\u7684\u7ebf\u7a0b\u6a21\u578b&#xff1a;\u53ef\u914d\u7f6e\u7684\u7ebf\u7a0b\u6c60<\/li>\n<li>\u96f6\u62f7\u8d1d\u80fd\u529b&#xff1a;\u51cf\u5c11\u6570\u636e\u590d\u5236<\/li>\n<li>\u4e30\u5bcc\u7684\u534f\u8bae\u652f\u6301&#xff1a;HTTP\u3001HTTP\/2\u3001WebSocket\u3001gRPC \u7b49<\/li>\n<\/ul>\n<h3>\u5e94\u7528\u9886\u57df<\/h3>\n<p>Netty \u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u9ad8\u6027\u80fd\u7f51\u7edc\u5e94\u7528\u4e2d&#xff0c;\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u5206\u5e03\u5f0f\u7cfb\u7edf&#xff08;\u5982 Apache Dubbo\u3001gRPC&#xff09;<\/li>\n<li>\u5927\u6570\u636e\u7cfb\u7edf&#xff08;\u5982 Apache Spark&#xff09;<\/li>\n<li>\u6e38\u620f\u670d\u52a1\u5668<\/li>\n<li>\u5373\u65f6\u901a\u8baf\u7cfb\u7edf<\/li>\n<li>\u7269\u8054\u7f51\u5e73\u53f0<\/li>\n<\/ul>\n<p>Netty \u7684\u8bbe\u8ba1\u7406\u5ff5\u548c\u5b9e\u73b0\u65b9\u5f0f\u5bf9\u540e\u7eed\u8bb8\u591a\u7f51\u7edc\u6846\u67b6\u4ea7\u751f\u4e86\u6df1\u8fdc\u5f71\u54cd&#xff0c;\u6210\u4e3a Java \u7f51\u7edc\u7f16\u7a0b\u7684\u4e8b\u5b9e\u6807\u51c6\u4e4b\u4e00\u3002<\/p>\n<h4>\u56de\u6eaf Netty&#xff1a;\u4ece\u8d77\u6e90\u5230\u6f14\u8fdb\u7684\u5168\u89e3\u6790<\/h4>\n<p>Netty \u662f\u4e00\u6b3e\u9ad8\u6027\u80fd\u3001\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6&#xff0c;\u4e3b\u8981\u7528\u4e8e\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u5b83\u5728 Java \u751f\u6001\u4e2d\u5360\u636e\u91cd\u8981\u5730\u4f4d&#xff0c;\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5206\u5e03\u5f0f\u7cfb\u7edf\u3001\u5927\u6570\u636e\u5904\u7406\u3001\u6e38\u620f\u670d\u52a1\u5668\u7b49\u9886\u57df\u3002\u4e0b\u9762\u4ece\u8d77\u6e90\u3001\u6838\u5fc3\u7279\u6027\u3001\u7248\u672c\u6f14\u8fdb\u3001\u6280\u672f\u5f71\u54cd\u7b49\u65b9\u9762\u56de\u6eaf Netty \u7684\u53d1\u5c55\u5386\u7a0b\u3002<\/p>\n<h5>\u4e00\u3001\u8d77\u6e90&#xff1a;\u89e3\u51b3 Java NIO \u7684\u75db\u70b9<\/h5>\n<p>Java \u6700\u521d\u7684\u7f51\u7edc\u7f16\u7a0b\u4f9d\u8d56\u4e8e BIO&#xff08;\u963b\u585e I\/O&#xff09;&#xff0c;\u4f46\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u6027\u80fd\u4f4e\u4e0b\u3002JDK 1.4 \u5f15\u5165\u4e86 NIO&#xff08;\u975e\u963b\u585e I\/O&#xff09;&#xff0c;\u63d0\u4f9b\u4e86 Selector\u3001Channel \u7b49\u7ec4\u4ef6&#xff0c;\u7406\u8bba\u4e0a\u652f\u6301\u9ad8\u5e76\u53d1&#xff0c;\u4f46\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>API \u590d\u6742&#xff1a;NIO \u7684 Buffer\u3001Selector \u7b49\u6982\u5ff5\u8f83\u96be\u7406\u89e3&#xff0c;\u76f4\u63a5\u4f7f\u7528\u5bb9\u6613\u51fa\u9519\u3002<\/li>\n<li>\u7ebf\u7a0b\u6a21\u578b\u8bbe\u8ba1\u7e41\u7410&#xff1a;\u9700\u8981\u624b\u52a8\u5904\u7406 I\/O \u591a\u8def\u590d\u7528\u3001\u4e8b\u4ef6\u5206\u53d1\u7b49\u903b\u8f91&#xff0c;\u5f00\u53d1\u6210\u672c\u9ad8\u3002<\/li>\n<li>\u517c\u5bb9\u6027\u95ee\u9898&#xff1a;\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u5bf9 NIO \u7684\u5b9e\u73b0\u5b58\u5728\u5dee\u5f02&#xff08;\u5982 Windows \u7684 Selector \u6548\u7387\u8f83\u4f4e&#xff09;\u3002<\/li>\n<\/ul>\n<p>2004 \u5e74&#xff0c;Trustin Lee&#xff08;\u97e9\u56fd\u5f00\u53d1\u8005&#xff09;\u4e3a\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898&#xff0c;\u57fa\u4e8e Java NIO \u5f00\u53d1\u4e86\u4e00\u6b3e\u8f7b\u91cf\u7ea7\u6846\u67b6&#xff0c;\u6700\u521d\u547d\u540d\u4e3a JBoss Netty&#xff08;\u56e0\u65e9\u671f\u7531 JBoss \u793e\u533a\u7ef4\u62a4&#xff09;&#xff0c;\u65e8\u5728\u7b80\u5316\u9ad8\u6027\u80fd\u7f51\u7edc\u5e94\u7528\u7684\u5f00\u53d1\u3002<\/p>\n<h5>\u4e8c\u3001\u6838\u5fc3\u7279\u6027&#xff1a;\u4e3a\u4f55 Netty \u6210\u4e3a\u4e3b\u6d41&#xff1f;<\/h5>\n<p>Netty \u4ece\u8bde\u751f\u8d77\u5c31\u56f4\u7ed5\u201c\u9ad8\u6027\u80fd\u3001\u6613\u7528\u6027\u3001\u53ef\u6269\u5c55\u6027\u201d\u8bbe\u8ba1&#xff0c;\u6838\u5fc3\u7279\u6027\u5305\u62ec&#xff1a;<\/p>\n<li>\n<p>\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b<br \/>\n\u57fa\u4e8e Reactor \u6a21\u5f0f&#xff08;\u5982\u5355\u7ebf\u7a0b\u3001\u591a\u7ebf\u7a0b\u3001\u4e3b\u4ece\u591a\u7ebf\u7a0b\u6a21\u578b&#xff09;&#xff0c;\u901a\u8fc7 EventLoop \u5904\u7406 I\/O \u4e8b\u4ef6&#xff0c;\u907f\u514d\u7ebf\u7a0b\u963b\u585e&#xff0c;\u63d0\u5347\u5e76\u53d1\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b80\u5316\u7684 API<br \/>\n\u5c01\u88c5\u4e86 NIO \u7684\u590d\u6742\u7ec6\u8282&#xff0c;\u63d0\u4f9b Channel&#xff08;\u901a\u4fe1\u901a\u9053&#xff09;\u3001Pipeline&#xff08;\u8d23\u4efb\u94fe\u6a21\u5f0f\u5904\u7406\u4e8b\u4ef6&#xff09;\u3001Handler&#xff08;\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u5668&#xff09;\u7b49\u7ec4\u4ef6&#xff0c;\u5f00\u53d1\u8005\u65e0\u9700\u5173\u6ce8\u5e95\u5c42 I\/O \u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u9ad8\u6027\u80fd\u4f18\u5316<\/p>\n<ul>\n<li>\u96f6\u62f7\u8d1d\u673a\u5236&#xff1a;\u901a\u8fc7 CompositeByteBuf\u3001FileRegion \u7b49\u51cf\u5c11\u5185\u5b58\u62f7\u8d1d\u3002<\/li>\n<li>\u5185\u5b58\u6c60&#xff1a;\u590d\u7528 ByteBuf&#xff08;Netty \u81ea\u5b9a\u4e49\u7684\u7f13\u51b2\u533a&#xff09;&#xff0c;\u51cf\u5c11 GC \u538b\u529b\u3002<\/li>\n<li>\u81ea\u9002\u5e94\u7f13\u51b2\u533a&#xff1a;\u6839\u636e\u6570\u636e\u5927\u5c0f\u52a8\u6001\u8c03\u6574\u7f13\u51b2\u533a\u5206\u914d\u7b56\u7565\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8de8\u5e73\u53f0\u517c\u5bb9\u6027<br \/>\n\u89e3\u51b3\u4e86\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf NIO \u5b9e\u73b0\u7684\u5dee\u5f02&#xff08;\u5982\u5bf9 Linux \u7684 epoll\u3001Windows \u7684 IOCP \u8fdb\u884c\u9002\u914d&#xff09;&#xff0c;\u4fdd\u8bc1\u5728\u591a\u5e73\u53f0\u4e0b\u7684\u7a33\u5b9a\u8fd0\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e30\u5bcc\u7684\u534f\u8bae\u652f\u6301<br \/>\n\u5185\u7f6e HTTP\u3001HTTPS\u3001WebSocket\u3001Protobuf\u3001MQTT \u7b49\u534f\u8bae\u7684\u7f16\u89e3\u7801\u5668&#xff0c;\u53ef\u5feb\u901f\u5f00\u53d1\u7279\u5b9a\u534f\u8bae\u7684\u670d\u52a1\u5668&#xff08;\u5982 WebSocket \u5b9e\u65f6\u901a\u4fe1\u3001MQTT \u7269\u8054\u7f51\u901a\u4fe1&#xff09;\u3002<\/p>\n<\/li>\n<h5>\u4e09\u3001\u7248\u672c\u6f14\u8fdb&#xff1a;\u4ece 3.x \u5230 4.x\u30015.x&#xff08;\u53ca\u540e\u7eed&#xff09;<\/h5>\n<p>Netty \u7684\u7248\u672c\u8fed\u4ee3\u805a\u7126\u4e8e\u6027\u80fd\u4f18\u5316\u548c API \u5b8c\u5584&#xff0c;\u5173\u952e\u7248\u672c\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\n<p>Netty 3.x&#xff08;2008-2013&#xff09;<br \/>\n\u65e9\u671f\u7a33\u5b9a\u7248\u672c&#xff0c;\u5960\u5b9a\u4e86\u6838\u5fc3\u67b6\u6784&#xff0c;\u4f46 Channel\u3001Handler \u7b49 API \u8bbe\u8ba1\u4e0d\u591f\u7075\u6d3b&#xff0c;\u7ebf\u7a0b\u6a21\u578b\u5b58\u5728\u5c40\u9650\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>Netty 4.x&#xff08;2013 \u81f3\u4eca&#xff09;<br \/>\n\u91cd\u5927\u91cd\u6784\u7248\u672c&#xff0c;\u5f15\u5165\u4e86&#xff1a;<\/p>\n<ul>\n<li>\u5168\u65b0\u7684 EventLoop \u6a21\u578b&#xff1a;\u6bcf\u4e2a EventLoop \u7ed1\u5b9a\u4e00\u4e2a\u7ebf\u7a0b&#xff0c;\u907f\u514d\u7ebf\u7a0b\u5207\u6362\u5f00\u9500\u3002<\/li>\n<li>\u66f4\u9ad8\u6548\u7684 ByteBuf&#xff1a;\u652f\u6301\u6c60\u5316\u3001\u96f6\u62f7\u8d1d&#xff0c;\u66ff\u4ee3\u4e86 JDK \u7684 ByteBuffer\u3002<\/li>\n<li>\u7b80\u5316\u7684 Pipeline \u673a\u5236&#xff1a;\u8d23\u4efb\u94fe\u6a21\u5f0f\u66f4\u6e05\u6670&#xff0c;\u4fbf\u4e8e\u6269\u5c55\u3002<br \/>\n4.x \u662f\u76ee\u524d\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u7248\u672c&#xff08;\u5982 4.1.x \u4ecd\u5728\u7ef4\u62a4&#xff09;&#xff0c;\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u7ecf\u8fc7\u957f\u671f\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Netty 5.x&#xff08;\u592d\u6298&#xff09;<br \/>\n2015 \u5e74\u5c1d\u8bd5\u5f15\u5165 ForkJoinPool \u4f18\u5316\u7ebf\u7a0b\u6a21\u578b&#xff0c;\u4f46\u56e0\u6027\u80fd\u63d0\u5347\u4e0d\u660e\u663e\u3001\u517c\u5bb9\u6027\u95ee\u9898&#xff0c;\u5b98\u65b9\u5ba3\u5e03\u653e\u5f03\u7ef4\u62a4&#xff0c;\u5efa\u8bae\u7ee7\u7eed\u4f7f\u7528 4.x\u3002<\/p>\n<\/li>\n<li>\n<p>\u540e\u7eed\u53d1\u5c55<br \/>\n4.x \u6301\u7eed\u8fed\u4ee3&#xff08;\u5982 4.1.90.Final \u4e8e 2023 \u5e74\u53d1\u5e03&#xff09;&#xff0c;\u9488\u5bf9 JDK \u65b0\u7248\u672c&#xff08;\u5982 JDK 11&#043;&#xff09;\u8fdb\u884c\u9002\u914d&#xff0c;\u4f18\u5316\u5bf9 HTTP\/2\u3001TLS 1.3 \u7b49\u534f\u8bae\u7684\u652f\u6301\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>\u56db\u3001\u6280\u672f\u5f71\u54cd&#xff1a;Netty \u5728\u4e1a\u754c\u7684\u5e94\u7528<\/h5>\n<p>Netty 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