{"id":44769,"date":"2023-08-19T18:39:29","date_gmt":"2023-05-19T19:21:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44769-2\/"},"modified":"2024-04-30T19:14:53","modified_gmt":"2024-04-30T11:14:53","slug":"44769-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44769-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u203b\u6ce8\u610f: \u3053\u306e\u8a18\u4e8b\u306f\u306f\u3042\u304f\u307e\u3067\u500b\u4eba\u5b66\u7fd2\u7528\u306b\u6574\u7406\u3057\u305f\u3060\u3051\u306e\u8a18\u4e8b\u3067\u3001\u5185\u5bb9\u3068\u3057\u3066\u306f\u4e0d\u5b8c\u5168\u306a\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u8aad\u3093\u3067\u3082\u53c2\u8003\u306b\u306a\u3089\u306a\u3044\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002<\/p>\n<p>ServeMux \u3068 DefaultServeMux \u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3001\u5177\u4f53\u7684\u306b\u628a\u63e1\u3057\u305f\u3044\u3002<\/p>\n<p>ServeMux \u306b\u3064\u3044\u3066\u306f\u4e0d\u5b8c\u5168\u306a\u5185\u5bb9\u306a\u304c\u3089\u4ee5\u4e0b\u306b\u30e1\u30e2\u3057\u305f\u3002<br \/>\nGo \u306e ServeMux \u306b\u3064\u3044\u3066<\/p>\n<h3>DefaultServeMux \u3068\u306f<\/h3>\n<p>\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b3\u30e1\u30f3\u30c8\u3057\u3066\u3042\u308b\u3002<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=defaultServeMux#L2240<\/p>\n<blockquote><p>DefaultServeMux is the default ServeMux used by Serve.<br \/>\nDefaultServeMux\u306f\u3001Serve\u304c\u4f7f\u7528\u3059\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u306eServeMux\u3067\u3059\u3002<\/p><\/blockquote>\n<pre class=\"post-pre\"><code><span class=\"k\">var<\/span> <span class=\"n\">DefaultServeMux<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">defaultServeMux<\/span>\r\n\r\n<span class=\"k\">var<\/span> <span class=\"n\">defaultServeMux<\/span> <span class=\"n\">ServeMux<\/span>\r\n<\/code><\/pre>\n<p>defaultServeMux \u306f\u5358\u306a\u308b\u5909\u6570\u540d\u3067\u3001ServeMux \u69cb\u9020\u4f53\u306e\u30dd\u30a4\u30f3\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u306f\u3053\u306e\u3088\u3046\u306b\u30b3\u30e1\u30f3\u30c8\u304c\u3042\u308b<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=defaultServeMux#L2527<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ A Server defines parameters for running an HTTP server.<\/span>\r\n<span class=\"c\">\/\/ The zero value for Server is a valid configuration.<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Server<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Addr<\/span> <span class=\"kt\">string<\/span>\r\n\r\n    <span class=\"n\">Handler<\/span> <span class=\"n\">Handler<\/span> <span class=\"c\">\/\/ handler to invoke, http.DefaultServeMux if nil<\/span>\r\n<\/code><\/pre>\n<blockquote><p>handler to invoke, http.DefaultServeMux if nil<br \/>\n\u547c\u3073\u51fa\u3059\u30cf\u30f3\u30c9\u30e9\u3002 nil \u306e\u5834\u5408\u306f http.DefaultServeMux<\/p><\/blockquote>\n<p>\u305d\u3057\u3066\u3001\u305d\u306e\u5b9f\u88c5\u304c\u4ee5\u4e0b<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ serverHandler delegates to either the server's Handler or<\/span>\r\n<span class=\"c\">\/\/ DefaultServeMux and also handles \"OPTIONS *\" requests.<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">serverHandler<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">srv<\/span> <span class=\"o\">*<\/span><span class=\"n\">Server<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">sh<\/span> <span class=\"n\">serverHandler<\/span><span class=\"p\">)<\/span> <span class=\"n\">ServeHTTP<\/span><span class=\"p\">(<\/span><span class=\"n\">rw<\/span> <span class=\"n\">ResponseWriter<\/span><span class=\"p\">,<\/span> <span class=\"n\">req<\/span> <span class=\"o\">*<\/span><span class=\"n\">Request<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">handler<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">sh<\/span><span class=\"o\">.<\/span><span class=\"n\">srv<\/span><span class=\"o\">.<\/span><span class=\"n\">Handler<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">handler<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">handler<\/span> <span class=\"o\">=<\/span> <span class=\"n\">DefaultServeMux<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067 DefaultServeMux \u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">req<\/span><span class=\"o\">.<\/span><span class=\"n\">RequestURI<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"*\"<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"n\">req<\/span><span class=\"o\">.<\/span><span class=\"n\">Method<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"OPTIONS\"<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">handler<\/span> <span class=\"o\">=<\/span> <span class=\"n\">globalOptionsHandler<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">handler<\/span><span class=\"o\">.<\/span><span class=\"n\">ServeHTTP<\/span><span class=\"p\">(<\/span><span class=\"n\">rw<\/span><span class=\"p\">,<\/span> <span class=\"n\">req<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u306a\u308b\u307b\u3069\u3002\u7d50\u5c40 ServeMux \u3068 DefaultServeMux \u306f\u540c\u3058\u578b\u3060\u3063\u305f\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u4e0a\u8a18\u306e serverHander.ServeHTTP \u306f\u4ee5\u4e0b\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=serve#L1925<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">c<\/span> <span class=\"o\">*<\/span><span class=\"n\">conn<\/span><span class=\"p\">)<\/span> <span class=\"n\">serve<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ \u7701\u7565<\/span>\r\n    <span class=\"n\">serverHandler<\/span><span class=\"p\">{<\/span><span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">server<\/span><span class=\"p\">}<\/span><span class=\"o\">.<\/span><span class=\"n\">ServeHTTP<\/span><span class=\"p\">(<\/span><span class=\"n\">w<\/span><span class=\"p\">,<\/span> <span class=\"n\">w<\/span><span class=\"o\">.<\/span><span class=\"n\">req<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5b9f\u884c<\/span>\r\n<\/code><\/pre>\n<p>conn.serve \u306f\u4ee5\u4e0b\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=serve#L2969<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">srv<\/span> <span class=\"o\">*<\/span><span class=\"n\">Server<\/span><span class=\"p\">)<\/span> <span class=\"n\">Serve<\/span><span class=\"p\">(<\/span><span class=\"n\">l<\/span> <span class=\"n\">net<\/span><span class=\"o\">.<\/span><span class=\"n\">Listener<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ \u7701\u7565<\/span>\r\n        <span class=\"k\">go<\/span> <span class=\"n\">c<\/span><span class=\"o\">.<\/span><span class=\"n\">serve<\/span><span class=\"p\">(<\/span><span class=\"n\">connCtx<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5b9f\u884c<\/span>\r\n<\/code><\/pre>\n<p>Server.Serve \u306f\u4ee5\u4e0b\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=serve#L2866<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">srv<\/span> <span class=\"o\">*<\/span><span class=\"n\">Server<\/span><span class=\"p\">)<\/span> <span class=\"n\">ListenAndServe<\/span><span class=\"p\">()<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">srv<\/span><span class=\"o\">.<\/span><span class=\"n\">shuttingDown<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">ErrServerClosed<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">addr<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">srv<\/span><span class=\"o\">.<\/span><span class=\"n\">Addr<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">addr<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"\"<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">addr<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\":http\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">ln<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">net<\/span><span class=\"o\">.<\/span><span class=\"n\">Listen<\/span><span class=\"p\">(<\/span><span class=\"s\">\"tcp\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">addr<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">srv<\/span><span class=\"o\">.<\/span><span class=\"n\">Serve<\/span><span class=\"p\">(<\/span><span class=\"n\">ln<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5b9f\u884c<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Server.ListenAndServe \u306f\u76f4\u63a5\u5b9f\u884c\u3059\u308b\u5834\u5408\u3082\u3042\u308b\u3057\u3001http. ListenAndServe \u304b\u3089\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u3002<br \/>\nhttp.ListenAndServe \u5185\u306e\u3000server.ListenAndServe \u5b9f\u884c\u7b87\u6240\u306f\u4ee5\u4e0b\u3002<br \/>\nhttps:\/\/golang.org\/src\/net\/http\/server.go?h=serve#L3120<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">ListenAndServe<\/span><span class=\"p\">(<\/span><span class=\"n\">addr<\/span> <span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"n\">handler<\/span> <span class=\"n\">Handler<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">server<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Server<\/span><span class=\"p\">{<\/span><span class=\"n\">Addr<\/span><span class=\"o\">:<\/span> <span class=\"n\">addr<\/span><span class=\"p\">,<\/span> <span class=\"n\">Handler<\/span><span class=\"o\">:<\/span> <span class=\"n\">handler<\/span><span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">server<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">()<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5b9f\u884c<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u4f5c\u6210\u3057\u305f\u5834\u5408\u3001DefaultServeMux \u3067\u306f\u306a\u304f http.NewServeMux\uff08\uff09 \u3067\u4f5c\u6210\u3057\u305f mux \u304c\u4f7f\u7528\u3055\u308c\u308b\u304c\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">mux<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">NewServeMux<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">mux<\/span><span class=\"o\">.<\/span><span class=\"n\">HandleFunc<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">index<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">server<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Server<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">Addr<\/span><span class=\"o\">:<\/span>           <span class=\"n\">config<\/span><span class=\"o\">.<\/span><span class=\"n\">Address<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">Handler<\/span><span class=\"o\">:<\/span>        <span class=\"n\">mux<\/span><span class=\"p\">,<\/span> <span class=\"c\">\/\/ Handler \u306b mux \u3092\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u3001DefaultServeMux \u3067\u306f\u306a\u304f\u3053\u308c\u304c\u4f7f\u7528\u3055\u308c\u308b<\/span>\r\n        <span class=\"n\">ReadTimeout<\/span><span class=\"o\">:<\/span>    <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span><span class=\"p\">(<\/span><span class=\"n\">config<\/span><span class=\"o\">.<\/span><span class=\"n\">ReadTimeout<\/span> <span class=\"o\">*<\/span> <span class=\"kt\">int64<\/span><span class=\"p\">(<\/span><span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Second<\/span><span class=\"p\">)),<\/span>\r\n        <span class=\"n\">WriteTimeout<\/span><span class=\"o\">:<\/span>   <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span><span class=\"p\">(<\/span><span class=\"n\">config<\/span><span class=\"o\">.<\/span><span class=\"n\">WriteTimeout<\/span> <span class=\"o\">*<\/span> <span class=\"kt\">int64<\/span><span class=\"p\">(<\/span><span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Second<\/span><span class=\"p\">)),<\/span>\r\n        <span class=\"n\">MaxHeaderBytes<\/span><span class=\"o\">:<\/span> <span class=\"m\">1<\/span> <span class=\"o\">&lt;&lt;<\/span> <span class=\"m\">20<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">server<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u4f5c\u6210\u3057\u305f\u5834\u5408\u306f\u3001 DefaultServeMux \u304c\u4f7f\u7528\u3055\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u304b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Handle<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">templateHandler<\/span><span class=\"p\">{<\/span><span class=\"n\">filename<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"index.html\"<\/span><span class=\"p\">})<\/span>\r\n    <span class=\"c\">\/\/ \u3053\u306e\u5834\u5408\u3001\u30de\u30eb\u30c1\u30d7\u30ec\u30af\u30b5\u3092\u7279\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044\u4e8b\u306b\u306a\u308b\u305f\u3081\u3001DefaultServeMux \u304c\u4f7f\u7528\u3055\u308c\u308b<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">(<\/span><span class=\"s\">\":8080\"<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span><span class=\"p\">);<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"s\">\"ListenAndServe:\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u306a\u308b\u307b\u3069\u3002\u4e00\u65e6\u96d1\u306b\u7406\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u203b\u6ce8\u610f: \u3053\u306e\u8a18\u4e8b\u306f\u306f\u3042\u304f\u307e\u3067\u500b\u4eba\u5b66\u7fd2\u7528\u306b\u6574\u7406\u3057\u305f\u3060\u3051\u306e\u8a18\u4e8b\u3067\u3001\u5185\u5bb9\u3068\u3057\u3066\u306f\u4e0d\u5b8c\u5168\u306a\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u8aad\u3093\u3067\u3082\u53c2 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44769","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44769-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u203b\u6ce8\u610f: 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