{"id":31137,"date":"2025-04-21T08:51:00","date_gmt":"2025-04-21T00:51:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/31137.html"},"modified":"2025-04-21T08:51:00","modified_gmt":"2025-04-21T00:51:00","slug":"go%e8%af%ad%e8%a8%80%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e5%ae%9e%e6%88%98%ef%bc%9a%e6%9e%84%e5%bb%ba%e9%ab%98%e6%80%a7%e8%83%bdtcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%b9%b6%e5%8f%91%e5%a4%84","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/31137.html","title":{"rendered":"Go\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u5b9e\u6218\uff1a\u6784\u5efa\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668\u4e0e\u5e76\u53d1\u5904\u7406"},"content":{"rendered":"<h2>Go\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u5b9e\u6218&#xff1a;\u6784\u5efa\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668\u4e0e\u5e76\u53d1\u5904\u7406<\/h2>\n<p>Go\u8bed\u8a00&#xff08;Golang&#xff09;\u51ed\u501f\u5176\u7b80\u6d01\u7684\u8bed\u6cd5\u3001\u5f3a\u5927\u7684\u5e76\u53d1\u6a21\u578b\u548c\u9ad8\u6548\u7684\u7f51\u7edc\u5e93&#xff0c;\u5df2\u6210\u4e3a\u6784\u5efa\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u7684\u9996\u9009\u8bed\u8a00\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u5229\u7528Go\u8bed\u8a00\u6784\u5efa\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668&#xff0c;\u5e76\u5145\u5206\u53d1\u6325\u5176\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/p>\n<h3>\u5f15\u8a00<\/h3>\n<p>Go\u8bed\u8a00\u7531Google\u5f00\u53d1&#xff0c;\u65e8\u5728\u89e3\u51b3\u73b0\u4ee3\u7f16\u7a0b\u4e2d\u7684\u75db\u70b9&#xff1a;\u9ad8\u6548\u7684\u5e76\u53d1\u5904\u7406\u3001\u7b80\u6d01\u7684\u4ee3\u7801\u7ed3\u6784\u548c\u5feb\u901f\u7684\u5f00\u53d1\u5468\u671f\u3002\u5176\u5185\u7f6e\u7684net\u5305\u548cgoroutine\u673a\u5236\u4f7f\u5f97\u6784\u5efa\u9ad8\u6027\u80fd\u7f51\u7edc\u670d\u52a1\u53d8\u5f97\u5f02\u5e38\u7b80\u5355\u3002\u672c\u6587\u5c06\u5e26\u4f60\u4ece\u57fa\u7840\u6982\u5ff5\u5230\u5b9e\u6218\u5e94\u7528&#xff0c;\u5168\u9762\u638c\u63e1Go\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u6280\u672f\u3002<\/p>\n<h3>Go\u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840<\/h3>\n<h4>TCP\/IP\u534f\u8bae\u4e0eGo\u5b9e\u73b0<\/h4>\n<p>TCP\/IP\u534f\u8bae\u662f\u4e92\u8054\u7f51\u901a\u4fe1\u7684\u57fa\u7840&#xff0c;Go\u8bed\u8a00\u901a\u8fc7net\u5305\u63d0\u4f9b\u4e86\u5b8c\u6574\u7684TCP\/IP\u534f\u8bae\u6808\u5b9e\u73b0&#xff1a;<\/p>\n<ul>\n<li>net.Dial() &#8211; \u5efa\u7acbTCP\u8fde\u63a5<\/li>\n<li>net.Listen() &#8211; \u76d1\u542cTCP\u7aef\u53e3<\/li>\n<li>net.Conn &#8211; \u8868\u793aTCP\u8fde\u63a5\u63a5\u53e3<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u57fa\u672cTCP\u670d\u52a1\u5668\u793a\u4f8b<\/span><br \/>\nlistener<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> net<span class=\"token punctuation\">.<\/span><span class=\"token function\">Listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;tcp&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;:8080&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fatal<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">defer<\/span> listener<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>Go\u7f51\u7edc\u7f16\u7a0b\u6838\u5fc3\u7ec4\u4ef6<\/h4>\n<li>\u7f51\u7edc\u63a5\u53e3&#xff1a;net.Conn\u63d0\u4f9b\u8bfb\u5199\u65b9\u6cd5<\/li>\n<li>\u5730\u5740\u89e3\u6790&#xff1a;net.ResolveTCPAddr<\/li>\n<li>\u9519\u8bef\u5904\u7406&#xff1a;\u7f51\u7edc\u64cd\u4f5c\u8fd4\u56deerror\u63a5\u53e3<\/li>\n<h3>\u6784\u5efa\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668<\/h3>\n<h4>\u670d\u52a1\u5668\u67b6\u6784\u8bbe\u8ba1<\/h4>\n<p>\u4e00\u4e2a\u5065\u58ee\u7684TCP\u670d\u52a1\u5668\u5e94\u5305\u542b\u4ee5\u4e0b\u7ec4\u4ef6&#xff1a;<\/p>\n<li>\u76d1\u542c\u5668&#xff08;Listener&#xff09;<\/li>\n<li>\u8fde\u63a5\u5904\u7406\u5668&#xff08;Handler&#xff09;<\/li>\n<li>\u5e76\u53d1\u7ba1\u7406\u5668<\/li>\n<li>\u8d44\u6e90\u6e05\u7406\u673a\u5236<\/li>\n<h4>\u5b8c\u6574\u670d\u52a1\u5668\u5b9e\u73b0<\/h4>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">handleConnection<\/span><span class=\"token punctuation\">(<\/span>conn net<span class=\"token punctuation\">.<\/span>Conn<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">defer<\/span> conn<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u8fde\u63a5\u903b\u8f91<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    listener<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> net<span class=\"token punctuation\">.<\/span><span class=\"token function\">Listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;tcp&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;:8080&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fatal<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">defer<\/span> listener<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        conn<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> listener<span class=\"token punctuation\">.<\/span><span class=\"token function\">Accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">continue<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">go<\/span> <span class=\"token function\">handleConnection<\/span><span class=\"token punctuation\">(<\/span>conn<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>\u6027\u80fd\u4f18\u5316\u6280\u5de7<\/h4>\n<ul>\n<li>\u4f7f\u7528\u8fde\u63a5\u6c60\u7ba1\u7406\u8d44\u6e90<\/li>\n<li>\u5b9e\u73b0\u8bfb\u5199\u8d85\u65f6\u63a7\u5236<\/li>\n<li>\u5408\u7406\u8bbe\u7f6e\u7f13\u51b2\u533a\u5927\u5c0f<\/li>\n<li>\u542f\u7528TCP keepalive<\/li>\n<\/ul>\n<h3>Go\u5e76\u53d1\u6a21\u578b\u6df1\u5ea6\u89e3\u6790<\/h3>\n<h4>Goroutine\u539f\u7406<\/h4>\n<p>Goroutine\u662fGo\u8bed\u8a00\u7684\u8f7b\u91cf\u7ea7\u7ebf\u7a0b\u5b9e\u73b0&#xff1a;<\/p>\n<table>\n<tr>\u7279\u6027\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>\u521b\u5efa\u6210\u672c<\/td>\n<td>\u4ec5\u97002KB\u6808\u5185\u5b58<\/td>\n<\/tr>\n<tr>\n<td>\u8c03\u5ea6\u65b9\u5f0f<\/td>\n<td>\u7528\u6237\u6001\u8c03\u5ea6&#xff0c;\u975e\u62a2\u5360\u5f0f<\/td>\n<\/tr>\n<tr>\n<td>\u901a\u4fe1\u673a\u5236<\/td>\n<td>\u901a\u8fc7channel\u540c\u6b65<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>Channel\u901a\u4fe1\u6a21\u5f0f<\/h4>\n<p>Channel\u662fgoroutine\u95f4\u7684\u901a\u4fe1\u7ba1\u9053&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u5e26\u7f13\u51b2\u7684channel<\/span><br \/>\nmsgChan <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">chan<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ goroutine\u53d1\u9001\u6570\u636e<\/span><br \/>\n<span class=\"token keyword\">go<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    msgChan <span class=\"token operator\">&lt;-<\/span> <span class=\"token string\">&#034;hello&#034;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e3bgoroutine\u63a5\u6536\u6570\u636e<\/span><br \/>\nmsg <span class=\"token operator\">:&#061;<\/span> <span class=\"token operator\">&lt;-<\/span>msgChan<\/p>\n<h4>\u5e76\u53d1\u6a21\u5f0f\u5bf9\u6bd4<\/h4>\n<li>\u6bcf\u8fde\u63a5\u4e00goroutine&#xff1a;\u7b80\u5355\u4f46\u8d44\u6e90\u6d88\u8017\u5927<\/li>\n<li>Worker\u6c60\u6a21\u5f0f&#xff1a;\u63a7\u5236\u5e76\u53d1\u6570&#xff0c;\u66f4\u7a33\u5b9a<\/li>\n<li>Reactor\u6a21\u5f0f&#xff1a;\u4e8b\u4ef6\u9a71\u52a8&#xff0c;\u9ad8\u6027\u80fd<\/li>\n<h3>\u9ad8\u7ea7\u7f51\u7edc\u7f16\u7a0b\u6280\u672f<\/h3>\n<h4>\u534f\u8bae\u8bbe\u8ba1\u8981\u70b9<\/h4>\n<ul>\n<li>\u6d88\u606f\u8fb9\u754c\u5904\u7406<\/li>\n<li>\u7f16\u89e3\u7801\u4f18\u5316<\/li>\n<li>\u5fc3\u8df3\u673a\u5236\u5b9e\u73b0<\/li>\n<li>\u6d41\u91cf\u63a7\u5236\u7b56\u7565<\/li>\n<\/ul>\n<h4>\u9519\u8bef\u5904\u7406\u6700\u4f73\u5b9e\u8df5<\/h4>\n<p><span class=\"token comment\">\/\/ \u5e26\u8d85\u65f6\u7684\u8bfb\u5199\u64cd\u4f5c<\/span><br \/>\nconn<span class=\"token punctuation\">.<\/span><span class=\"token function\">SetDeadline<\/span><span class=\"token punctuation\">(<\/span>time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> conn<span class=\"token punctuation\">.<\/span><span class=\"token function\">Read<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> netErr<span class=\"token punctuation\">,<\/span> ok <span class=\"token operator\">:&#061;<\/span> err<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span>net<span class=\"token punctuation\">.<\/span>Error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> ok <span class=\"token operator\">&amp;&amp;<\/span> netErr<span class=\"token punctuation\">.<\/span><span class=\"token function\">Timeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read timeout&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read error:&#034;<\/span><span class=\"token punctuation\">,<\/span> err<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>\u6027\u80fd\u76d1\u63a7\u6307\u6807<\/h4>\n<li>\u8fde\u63a5\u5efa\u7acb\u901f\u7387<\/li>\n<li>\u8bf7\u6c42\u5904\u7406\u5ef6\u8fdf<\/li>\n<li>Goroutine\u6570\u91cf<\/li>\n<li>\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/li>\n<h3>\u5b9e\u6218\u6848\u4f8b&#xff1a;\u6784\u5efa\u804a\u5929\u670d\u52a1\u5668<\/h3>\n<h4>\u529f\u80fd\u9700\u6c42<\/h4>\n<ul>\n<li>\u591a\u7528\u6237\u540c\u65f6\u5728\u7ebf<\/li>\n<li>\u6d88\u606f\u5e7f\u64ad\u529f\u80fd<\/li>\n<li>\u7528\u6237\u6635\u79f0\u7ba1\u7406<\/li>\n<li>\u8fde\u63a5\u72b6\u6001\u76d1\u63a7<\/li>\n<\/ul>\n<h4>\u6838\u5fc3\u6570\u636e\u7ed3\u6784<\/h4>\n<p><span class=\"token keyword\">type<\/span> Client <span class=\"token keyword\">struct<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Conn net<span class=\"token punctuation\">.<\/span>Conn<br \/>\n    Name <span class=\"token builtin\">string<\/span><br \/>\n    Send <span class=\"token keyword\">chan<\/span> <span class=\"token builtin\">string<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">type<\/span> ChatServer <span class=\"token keyword\">struct<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    clients <span class=\"token keyword\">map<\/span><span class=\"token punctuation\">[<\/span><span class=\"token operator\">*<\/span>Client<span class=\"token punctuation\">]<\/span><span class=\"token builtin\">bool<\/span><br \/>\n    lock    sync<span class=\"token punctuation\">.<\/span>Mutex<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>\u5e7f\u64ad\u6d88\u606f\u5b9e\u73b0<\/h4>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token punctuation\">(<\/span>s <span class=\"token operator\">*<\/span>ChatServer<span class=\"token punctuation\">)<\/span> <span class=\"token function\">broadcast<\/span><span class=\"token punctuation\">(<\/span>message <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    s<span class=\"token punctuation\">.<\/span>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">defer<\/span> s<span class=\"token punctuation\">.<\/span>lock<span class=\"token punctuation\">.<\/span><span class=\"token function\">Unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> client <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> s<span class=\"token punctuation\">.<\/span>clients <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">select<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">case<\/span> client<span class=\"token punctuation\">.<\/span>Send <span class=\"token operator\">&lt;-<\/span> message<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">default<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>client<span class=\"token punctuation\">.<\/span>Send<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token function\">delete<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span>clients<span class=\"token punctuation\">,<\/span> client<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token 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