{"id":31973,"date":"2025-04-22T18:11:14","date_gmt":"2025-04-22T10:11:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/31973.html"},"modified":"2025-04-22T18:11:14","modified_gmt":"2025-04-22T10:11:14","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\/31973.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\u4e3b\u8981\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef"},"content":{"rendered":"<p>Netty\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6&#xff0c;\u4e3b\u8981\u7528\u4e8e\u5feb\u901f\u5f00\u53d1\u53ef\u7ef4\u62a4\u7684\u9ad8\u6027\u80fd\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5316\u548c\u6d41\u7ebf\u5316\u7684\u65b9\u5f0f\u6765\u8bbe\u8ba1\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f&#xff0c;\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u903b\u8f91\u800c\u4e0d\u5fc5\u8fc7\u591a\u5173\u6ce8\u5e95\u5c42\u7ec6\u8282\u3002Netty\u7684\u8bbe\u8ba1\u76ee\u6807\u662f\u89e3\u51b3\u4f20\u7edf\u7f51\u7edc\u7f16\u7a0b\u4e2d\u5e38\u89c1\u7684\u95ee\u9898&#xff0c;\u5982\u7ebf\u7a0b\u7ba1\u7406\u3001\u5185\u5b58\u6cc4\u6f0f\u3001\u6570\u636e\u5e8f\u5217\u5316\u7b49&#xff0c;\u901a\u8fc7\u63d0\u4f9b\u4e00\u5957\u4e30\u5bcc\u7684API\u6765\u7b80\u5316\u8fd9\u4e9b\u590d\u6742\u6027\u3002<\/p>\n<p>Netty\u7684\u4e3b\u8981\u7279\u70b9\u5305\u62ec&#xff1a;<\/p>\n<li>\u9ad8\u5e76\u53d1\u5904\u7406\u80fd\u529b&#xff1a;Netty\u91c7\u7528NIO&#xff08;\u975e\u963b\u585eIO&#xff09;\u673a\u5236&#xff0c;\u80fd\u591f\u652f\u6301\u6210\u5343\u4e0a\u4e07\u7684\u5e76\u53d1\u8fde\u63a5\u3002<\/li>\n<li>\u7075\u6d3b\u7684\u7ebf\u7a0b\u6a21\u578b&#xff1a;\u652f\u6301\u591a\u79cd\u7ebf\u7a0b\u6a21\u578b&#xff0c;\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u573a\u666f\u9009\u62e9\u6700\u5408\u9002\u7684\u6a21\u578b\u3002<\/li>\n<li>\u9ad8\u6548\u7684\u8d44\u6e90\u7ba1\u7406&#xff1a;\u81ea\u52a8\u7ba1\u7406\u8d44\u6e90\u91ca\u653e&#xff0c;\u51cf\u5c11\u5185\u5b58\u6cc4\u6f0f\u7684\u98ce\u9669\u3002<\/li>\n<li>\u6613\u4e8e\u96c6\u6210&#xff1a;\u4e0eSpring\u7b49\u6d41\u884c\u6846\u67b6\u65e0\u7f1d\u96c6\u6210&#xff0c;\u65b9\u4fbf\u5728\u73b0\u6709\u9879\u76ee\u4e2d\u5f15\u5165\u4f7f\u7528\u3002<\/li>\n<li>\u4e30\u5bcc\u7684\u534f\u8bae\u652f\u6301&#xff1a;\u5185\u7f6e\u4e86\u5bf9HTTP\u3001WebSocket\u7b49\u591a\u79cd\u534f\u8bae\u7684\u652f\u6301&#xff0c;\u540c\u65f6\u4e5f\u5141\u8bb8\u7528\u6237\u81ea\u5b9a\u4e49\u534f\u8bae\u3002<\/li>\n<p>Netty\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u5f02\u6b65\u4e8b\u4ef6\u9a71\u52a8\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6&#xff0c;\u5b83\u901a\u8fc7\u591a\u79cd\u673a\u5236\u6765\u5904\u7406\u9ad8\u5e76\u53d1\u573a\u666f&#xff0c;\u786e\u4fdd\u4e86\u9ad8\u6548\u548c\u7a33\u5b9a\u7684\u7f51\u7edc\u901a\u4fe1\u3002\u4ee5\u4e0b\u662fNetty\u5904\u7406\u9ad8\u5e76\u53d1\u7684\u4e00\u4e9b\u5173\u952e\u673a\u5236&#xff1a;<\/p>\n<li>\n<p>\u57fa\u4e8eNIO\u7684\u975e\u963b\u585eI\/O&#xff1a;Netty\u4f7f\u7528Java NIO&#xff08;\u975e\u963b\u585eI\/O&#xff09;\u6765\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1&#xff0c;\u8fd9\u610f\u5473\u7740\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u7ba1\u7406\u591a\u4e2a\u7f51\u7edc\u8fde\u63a5&#xff0c;\u4ece\u800c\u5927\u5927\u63d0\u9ad8\u4e86\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/p>\n<\/li>\n<li>\n<p>\u96f6\u62f7\u8d1d&#xff1a;Netty\u91c7\u7528\u96f6\u62f7\u8d1d\u6280\u672f&#xff0c;\u51cf\u5c11\u4e86\u6570\u636e\u5728\u5185\u5b58\u4e2d\u7684\u590d\u5236\u6b21\u6570&#xff0c;\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u6548\u7387\u3002\u8fd9\u5bf9\u4e8e\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u7684\u6027\u80fd\u63d0\u5347\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/li>\n<li>\n<p>\u9ad8\u6548\u7684\u7ebf\u7a0b\u6a21\u578b&#xff1a;Netty\u91c7\u7528\u4e86\u4e3b\u4eceReactor\u591a\u7ebf\u7a0b\u6a21\u578b&#xff0c;\u5373\u4e00\u4e2a\u4e3b\u7ebf\u7a0b\u8d1f\u8d23\u63a5\u6536\u5ba2\u6237\u7aef\u8fde\u63a5&#xff0c;\u7136\u540e\u5c06\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u5206\u914d\u7ed9\u5b50\u7ebf\u7a0b\u8fdb\u884c\u5904\u7406\u3002\u8fd9\u79cd\u6a21\u578b\u80fd\u591f\u5145\u5206\u5229\u7528\u591a\u6838CPU\u7684\u4f18\u52bf&#xff0c;\u63d0\u9ad8\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/p>\n<\/li>\n<li>\n<p>\u5185\u5b58\u6c60&#xff1a;Netty\u63d0\u4f9b\u4e86\u57fa\u4e8e\u6c60\u5316\u7684\u7f13\u51b2\u533a\u7ba1\u7406\u673a\u5236&#xff0c;\u901a\u8fc7\u91cd\u7528\u7f13\u51b2\u533a\u6765\u51cf\u5c11\u5185\u5b58\u5206\u914d\u548c\u56de\u6536\u7684\u5f00\u9500&#xff0c;\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u7075\u6d3b\u7684Pipeline\u673a\u5236&#xff1a;Netty\u7684ChannelPipeline\u673a\u5236\u5141\u8bb8\u7528\u6237\u81ea\u5b9a\u4e49\u5904\u7406\u5668&#xff08;Handler&#xff09;&#xff0c;\u8fd9\u4e9b\u5904\u7406\u5668\u53ef\u4ee5\u88ab\u94fe\u5f0f\u8c03\u7528&#xff0c;\u5f62\u6210\u4e86\u4e00\u4e2a\u7075\u6d3b\u7684\u5904\u7406\u7ba1\u9053\u3002\u8fd9\u79cd\u673a\u5236\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027&#xff0c;\u4e5f\u6709\u52a9\u4e8e\u4f18\u5316\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f18\u96c5\u7684\u5931\u8d25\u5904\u7406&#xff1a;Netty\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5f02\u5e38\u5904\u7406\u673a\u5236&#xff0c;\u80fd\u591f\u4f18\u96c5\u5730\u5904\u7406\u5404\u79cd\u7f51\u7edc\u5f02\u5e38\u60c5\u51b5&#xff0c;\u4fdd\u8bc1\u4e86\u670d\u52a1\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n<\/li>\n<p>Netty\u5b9e\u73b0\u975e\u963b\u585eI\/O\u4e3b\u8981\u4f9d\u8d56\u4e8eJava\u7684NIO&#xff08;New Input\/Output&#xff09;\u5e93&#xff0c;\u5b83\u63d0\u4f9b\u4e86\u4e00\u5957\u57fa\u4e8e\u901a\u9053&#xff08;Channel&#xff09;\u548c\u7f13\u51b2\u533a&#xff08;Buffer&#xff09;\u7684API&#xff0c;\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u4ee5\u975e\u963b\u585e\u7684\u65b9\u5f0f\u5904\u7406\u7f51\u7edc\u4e8b\u4ef6\u3002Netty\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u975e\u963b\u585eI\/O&#xff1a;<\/p>\n<li>\n<p>\u4f7f\u7528Selector: Netty\u5229\u7528\u4e86Java NIO\u4e2d\u7684Selector\u673a\u5236&#xff0c;\u8fd9\u662f\u4e00\u79cd\u591a\u8def\u590d\u7528\u6280\u672f&#xff0c;\u5141\u8bb8\u5355\u4e2a\u7ebf\u7a0b\u76d1\u63a7\u591a\u4e2a\u7f51\u7edc\u8fde\u63a5&#xff0c;\u4ece\u800c\u5728\u6ca1\u6709\u6570\u636e\u53ef\u8bfb\u6216\u5199\u65f6&#xff0c;\u4e0d\u4f1a\u963b\u585e\u7b49\u5f85&#xff0c;\u800c\u662f\u53ef\u4ee5\u5207\u6362\u5230\u5176\u4ed6\u4efb\u52a1\u4e0a\u6267\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>Channel\u548cBuffer: Netty\u4f7f\u7528Channel\u6765\u8868\u793a\u7f51\u7edc\u8fde\u63a5&#xff0c;\u6bcf\u4e2aChannel\u90fd\u53ef\u4ee5\u914d\u7f6e\u4e3a\u975e\u963b\u585e\u6a21\u5f0f\u3002\u5f53Channel\u5904\u4e8e\u975e\u963b\u585e\u6a21\u5f0f\u4e0b&#xff0c;\u8bfb\u5199\u64cd\u4f5c\u4f1a\u7acb\u5373\u8fd4\u56de&#xff0c;\u800c\u4e0d\u662f\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u3002\u6b64\u5916&#xff0c;Netty\u8fd8\u4f7f\u7528\u4e86Buffer\u4f5c\u4e3a\u6570\u636e\u7684\u5bb9\u5668&#xff0c;\u7528\u4e8e\u5b58\u50a8\u4eceChannel\u4e2d\u8bfb\u53d6\u7684\u6570\u636e\u6216\u8005\u8981\u5199\u5165Channel\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>EventLoop: Netty\u7684\u4e8b\u4ef6\u5faa\u73af&#xff08;EventLoop&#xff09;\u662f\u5176\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00&#xff0c;\u5b83\u662f\u4e00\u4e2a\u65e0\u9650\u5faa\u73af&#xff0c;\u4e0d\u65ad\u5730\u68c0\u67e5\u6ce8\u518c\u7684Channel\u662f\u5426\u6709\u4e8b\u4ef6\u53d1\u751f&#xff08;\u5982\u8fde\u63a5\u3001\u6570\u636e\u5230\u8fbe\u7b49&#xff09;&#xff0c;\u5e76\u5bf9\u8fd9\u4e9b\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406\u3002\u7531\u4e8e\u4f7f\u7528\u4e86\u975e\u963b\u585eI\/O&#xff0c;EventLoop\u53ef\u4ee5\u5728\u6ca1\u6709\u4e8b\u4ef6\u53d1\u751f\u65f6\u8fdb\u884c\u5176\u4ed6\u4efb\u52a1\u7684\u5904\u7406&#xff0c;\u5927\u5927\u63d0\u9ad8\u4e86\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n<\/li>\n<li>\n<p>Future\u548cPromise: Netty\u4f7f\u7528Future\u548cPromise\u6765\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u7ed3\u679c\u3002\u5f53\u53d1\u8d77\u4e00\u4e2a\u975e\u963b\u585e\u7684I\/O\u64cd\u4f5c\u65f6&#xff0c;\u5b83\u4f1a\u7acb\u5373\u8fd4\u56de\u4e00\u4e2aFuture\u5bf9\u8c61&#xff0c;\u8be5\u5bf9\u8c61\u4ee3\u8868\u4e86\u64cd\u4f5c\u7684\u6700\u7ec8\u7ed3\u679c\u3002\u8c03\u7528\u8005\u53ef\u4ee5\u901a\u8fc7\u6ce8\u518c\u56de\u8c03\u51fd\u6570\u6216\u8005\u8f6e\u8be2\u7684\u65b9\u5f0f\u6765\u83b7\u53d6\u64cd\u4f5c\u7ed3\u679c&#xff0c;\u800c\u4e0d\u9700\u8981\u963b\u585e\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n<\/li>\n<li>\n<p>ByteBuf: Netty\u8fd8\u5f15\u5165\u4e86\u81ea\u5df1\u7684\u5b57\u8282\u7f13\u51b2\u533a\u5b9e\u73b0ByteBuf&#xff0c;\u5b83\u662f\u5bf9Java NIO ByteBuffer\u7684\u589e\u5f3a&#xff0c;\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u529f\u80fd\u548c\u66f4\u597d\u7684\u6027\u80fd\u3002ByteBuf\u652f\u6301\u5f15\u7528\u8ba1\u6570&#xff0c;\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u88ab\u591a\u4e2aChannel\u5171\u4eab&#xff0c;\u76f4\u5230\u6240\u6709\u5f15\u7528\u90fd\u88ab\u91ca\u653e\u540e\u624d\u4f1a\u771f\u6b63\u91ca\u653e\u5e95\u5c42\u7684\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n<\/li>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u673a\u5236&#xff0c;Netty\u80fd\u591f\u6709\u6548\u5730\u5b9e\u73b0\u975e\u963b\u585eI\/O&#xff0c;\u63d0\u9ad8\u7f51\u7edc\u5e94\u7528\u7684\u6027\u80fd\u548c\u5e76\u53d1\u80fd\u529b\u3002<\/p>\n<p>Netty\u4e2d\u7684EventLoop\u662f\u5904\u7406I\/O\u64cd\u4f5c\u7684\u6838\u5fc3\u7ec4\u4ef6&#xff0c;\u5b83\u57fa\u4e8eJava\u7684NIO&#xff08;\u975e\u963b\u585eI\/O&#xff09;\u5b9e\u73b0\u3002EventLoop\u7684\u4e3b\u8981\u804c\u8d23\u662f\u76d1\u542c\u4e8b\u4ef6&#xff08;\u5982\u8fde\u63a5\u3001\u6570\u636e\u5230\u8fbe\u7b49&#xff09;&#xff0c;\u5e76\u5c06\u8fd9\u4e9b\u4e8b\u4ef6\u5206\u53d1\u5230\u76f8\u5e94\u7684\u5904\u7406\u5668&#xff08;Handler&#xff09;\u3002<\/p>\n<p>EventLoop\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b&#xff1a;<\/p>\n<li>\u542f\u52a8: \u5f53\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u65f6&#xff0c;\u4f1a\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2aEventLoopGroup&#xff0c;\u6bcf\u4e2aEventLoopGroup\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2aEventLoop\u3002<\/li>\n<li>\u6ce8\u518c\u901a\u9053: \u5f53\u4e00\u4e2a\u65b0\u7684\u7f51\u7edc\u8fde\u63a5\u88ab\u63a5\u53d7\u6216\u8005\u521b\u5efa\u65f6&#xff0c;\u8fd9\u4e2a\u8fde\u63a5\u4f1a\u88ab\u5305\u88c5\u6210\u4e00\u4e2aNetty\u7684Channel\u5bf9\u8c61&#xff0c;\u5e76\u6ce8\u518c\u5230\u4e00\u4e2aEventLoop\u4e0a\u3002<\/li>\n<li>\u76d1\u542c\u4e8b\u4ef6: EventLoop\u4e0d\u65ad\u8f6e\u8be2\u5176\u6ce8\u518c\u7684Channel&#xff0c;\u67e5\u770b\u662f\u5426\u6709\u4e8b\u4ef6\u53d1\u751f&#xff08;\u4f8b\u5982\u6570\u636e\u5230\u8fbe\u3001\u8fde\u63a5\u65ad\u5f00\u7b49&#xff09;\u3002<\/li>\n<li>\u4e8b\u4ef6\u5206\u53d1: \u4e00\u65e6\u68c0\u6d4b\u5230\u4e8b\u4ef6&#xff0c;EventLoop\u5c31\u4f1a\u4ece\u6ce8\u518c\u7684Channel\u4e2d\u53d6\u51fa\u76f8\u5e94\u7684\u4e8b\u4ef6&#xff0c;\u5e76\u5c06\u5176\u5206\u53d1\u7ed9\u7ed1\u5b9a\u5728\u8fd9\u4e2aChannel\u4e0a\u7684Handler\u8fdb\u884c\u5904\u7406\u3002<\/li>\n<li>\u6267\u884c\u4efb\u52a1: Handler\u6839\u636e\u4e8b\u4ef6\u7c7b\u578b\u6267\u884c\u76f8\u5e94\u7684\u903b\u8f91&#xff0c;\u6bd4\u5982\u8bfb\u53d6\u6570\u636e\u3001\u53d1\u9001\u54cd\u5e94\u7b49\u3002<\/li>\n<li>\u5faa\u73af\u7b49\u5f85: \u5904\u7406\u5b8c\u4e8b\u4ef6\u540e&#xff0c;EventLoop\u7ee7\u7eed\u56de\u5230\u6b65\u9aa43&#xff0c;\u7b49\u5f85\u4e0b\u4e00\u4e2a\u4e8b\u4ef6\u7684\u89e6\u53d1\u3002<\/li>\n<p>Netty\u901a\u8fc7\u4f7f\u7528\u5355\u7ebf\u7a0b\u7684EventLoop\u6765\u907f\u514d\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u540c\u6b65\u95ee\u9898&#xff0c;\u4ece\u800c\u63d0\u9ad8\u4e86\u6027\u80fd\u3002\u540c\u65f6&#xff0c;Netty\u4e5f\u652f\u6301\u591a\u7ebf\u7a0b\u6a21\u578b&#xff0c;\u5141\u8bb8\u5728\u4e0d\u540c\u7684EventLoop\u4e4b\u95f4\u8fdb\u884c\u4efb\u52a1\u8c03\u5ea6\u548c\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<p>Netty\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u7f51\u7edc\u5e94\u7528\u6846\u67b6&#xff0c;\u5b83\u901a\u8fc7\u975e\u963b\u585eI\/O\u673a\u5236\u6765\u63d0\u9ad8\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387\u548c\u6027\u80fd\u3002Netty\u7684\u975e\u963b\u585eI\/O\u5b9e\u73b0\u4e3b\u8981\u4f9d\u8d56\u4e8eJava NIO&#xff08;New 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