{"id":32531,"date":"2022-12-31T08:16:33","date_gmt":"2023-08-18T03:34:20","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87javascript%e5%ad%a6%e4%b9%a0http%e9%80%9a%e4%bf%a1\/"},"modified":"2024-04-29T07:47:43","modified_gmt":"2024-04-28T23:47:43","slug":"%e9%80%9a%e8%bf%87javascript%e5%ad%a6%e4%b9%a0http%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%80%9a%e8%bf%87javascript%e5%ad%a6%e4%b9%a0http%e9%80%9a%e4%bf%a1\/","title":{"rendered":"\u901a\u8fc7JavaScript\u5b66\u4e60HTTP\u901a\u4fe1"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u672c\u6587\u65e8\u5728\u63d0\u4f9b\u5b66\u4e60\u57fa\u672c\u77e5\u8bc6\u4ee5\u5236\u4f5cWeb\u5e94\u7528\u7a0b\u5e8f\u7684\u5b66\u4e60\u6587\u7ae0\u3002\u4e3b\u8981\u5185\u5bb9\u5305\u62ec\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">windows\u4e0a\u3067ExcelVBA\u7b49\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u77e5\u8b58\u306f\u6301\u3063\u3066\u3044\u308b\u3082\u306e\u306e<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Linux\u306a\u3069\u30b5\u30fc\u30d0\u306f\u5168\u304f\u6271\u3063\u305f\u3053\u3068\u304c\u306a\u304f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30fc\u30d0\u304c\u5168\u304f\u306e\u30d6\u30e9\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3067<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Web\u30d6\u30e9\u30a6\u30b6\u306e\u6319\u52d5\u304c\u3088\u304f\u308f\u304b\u3089\u305a\u3001\u4f55\u3092\u4f7f\u3063\u3066\u3069\u3053\u3092\u3069\u3046\u898b\u308c\u3070\u7406\u89e3\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u304b\u4e0d\u5b89<\/ul>\n<p>\u5bf9\u4e8e\u8fd9\u6837\u7684\u4eba\u7fa4\u800c\u8a00\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5c06\u5b9e\u73b0\u4e00\u4e2aWeb\u670d\u52a1\u5668\u6765\u786e\u8ba4HTTP\u901a\u4fe1\u7684\u5b9e\u4f53\u3002<\/p>\n<hr \/>\n<h1>\u69cb\u5efa\u958b\u767c\u74b0\u5883<\/h1>\n<p>\u5c06Web\u670d\u52a1\u5668\u5b89\u88c5\u5728Windows PC\u4e0a\u3002\u4e3a\u4e86\u521b\u5efaWeb\u670d\u52a1\u5668\uff0c\u9700\u8981\u5b89\u88c5\u5904\u7406\u5668\u3002<\/p>\n<h2>Nodejs (\u53ea\u9700\u4e00\u4e2a\u9009\u9879)\uff1a<\/h2>\n<p>Node.js\u662f\u7528\u4e8e\u6267\u884cJavaScript\u7684\u8fd0\u884c\u65f6\u73af\u5883\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">nodejs\u516c\u5f0f\u304b\u3089windows\u7528\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5c55\u958b\u3057\u3066\u5b9f\u884c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u958b\u3044\u3066node\u3068\u5165\u529b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u7d42\u4e86\u306f.exit<\/ul>\n<hr \/>\n<h2>\u89c6\u89c9\u5de5\u4f5c\u5ba4\u4ee3\u7801\uff08VSCode\uff09<\/h2>\n<p>VSCode\u662f\u4e00\u79cd\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u7f16\u7a0b\u8bed\u8a00\u3002\u5b83\u6709\u8bb8\u591a\u65b9\u4fbf\u7684\u63d2\u4ef6\u3002\u4ee5\u4e0b\u662f\u6211\u63a8\u8350\u7684\u63d2\u4ef6\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Bracket Pair Colorizer2<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Debugger for Chrome<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">(Emacs Keymap)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Git graph<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">indent-rainbow<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Japanese-language-pack<\/ul>\n<hr \/>\n<h1>\u4f7f\u7528Node.js\u8fdb\u884cHTTP\u901a\u4fe1<\/h1>\n<p>\u9996\u5148\uff0c\u4ece\u5b98\u65b9\u6587\u4ef6\u5f00\u59cb\u3002\u8d2d\u4e70\u4e66\u7c4d\u662f\u4e4b\u540e\u7684\u4e8b\u60c5\uff08\u57fa\u672c\u539f\u5219\uff09\u3002<\/p>\n<h2>\u76d1\u542c\u7aef\u53e3<\/h2>\n<p>\u5728\u8ba1\u7b97\u673a\u4e2d\uff0c\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u4e86&#8221;\u901a\u4fe1\u7aef\u53e3&#8221;\u4f5c\u4e3a\u8fdb\u884c\u901a\u4fe1\u7684\u8d44\u6e90\u3002\u5b98\u65b9\u793a\u4f8b\u4ee3\u7801\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u662f3000\u3002<\/p>\n<p>(1) \u4f7f\u7528 VSCode \u6253\u5f00\u4e00\u4e2a\u65b0\u7684\u5de5\u4f5c\u7a7a\u95f4\uff1b\u70b9\u51fb\u201c\u6587\u4ef6\u201d\uff0c\u7136\u540e\u9009\u62e9\u201c\u547d\u540d\u5e76\u4fdd\u5b58\u5de5\u4f5c\u7a7a\u95f4\u201d\uff1b\u5c06\u5176\u4fdd\u5b58\u4e3a httpserver\u3002<\/p>\n<p>\u6211\u5c06\u65b0\u5efa\u4e00\u4e2a\u5de5\u4f5c\u7a7a\u95f4\u3002<\/p>\n<p>(2) \u7f16\u8f91\u6587\u4ef6\uff1b\u6587\u4ef6&gt;\u65b0\u5efa\u6587\u4ef6\u3002<\/p>\n<p>\u6211\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u6765\u7f16\u5199Web\u670d\u52a1\u5668\u7a0b\u5e8f\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5728\u7aef\u53e33000\u4e0a\u76d1\u542cHTTP\u901a\u4fe1\u8fde\u63a5\u7684Web\u670d\u52a1\u5668\u7a0b\u5e8f\uff0c\u5b83\u662f\u4e00\u4e2a\u5c55\u793a&#8221;\u4f60\u597d\u4e16\u754c&#8221;\u5728Web\u6d4f\u89c8\u5668\u4e0a\u7684\u793a\u4f8b\u7a0b\u5e8f\u3002<\/p>\n<p>\u6837\u672c\u7a0b\u5e8f\u5c06Content-Type HTTP\u5934\u8bbe\u7f6e\u4e3aMIME\u7c7b\u578b\u4e3a&#8217;text\/plain&#8217;\uff0c\u5e76\u5728HTTP\u4e3b\u4f53\u4e2d\u8bbe\u7f6e\u4e86&#8221;Hello World&#8221;\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Hello World<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>(3) \u4fdd\u5b58; \u6587\u4ef6&gt;\u53e6\u5b58\u4e3a<br \/>\n(4) \u6267\u884cnodejs\u7a0b\u5e8f; \u8fd0\u884c&gt;\u5f00\u59cb\u8c03\u8bd5&gt;Node.js<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/28-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.01.54.png\" \/><\/div>\n<p>\uff085\uff09\u901a\u8fc7\u7f51\u7edc\u6d4f\u89c8\u5668\u8bbf\u95eeWeb\u670d\u52a1\u5668\uff1b\u542f\u52a8Chrome &gt; \u8f93\u5165http:\/\/localhost:3000 &gt; \u663e\u793a\u201cHello world\u201d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/30-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.06.32.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/31-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.08.25.png\" \/><\/div>\n<hr \/>\n<h2>\u670d\u52a1\u5668\u7aef\u8c03\u8bd5<\/h2>\n<p>\u5728VSCode\u4e0a\uff0c\u60a8\u53ef\u4ee5\u8bbe\u7f6e\u65ad\u70b9\u6765\u6682\u505c\u6267\u884cnodejs\u7a0b\u5e8f\u3002<\/p>\n<p>(1) \u8bbe\u7f6e\u65ad\u70b9<br \/>\n(2) \u5728 Web \u6d4f\u89c8\u5668\u4e2d\u8f93\u5165 http:\/\/localhost:3000\uff0c\u4f1a\u5728 VSCode \u4e0a\u505c\u6b62\uff0c\u4f7f\u7528\u8bbe\u7f6e\u7684\u65ad\u70b9\u3002<br \/>\n(3) \u4ece\u65ad\u70b9\u5904\u8fdb\u884c\u6b65\u8fdb\u6267\u884c\/\u7ee7\u7eed\u3002<\/p>\n<hr \/>\n<h2>\u5ba2\u6237\u7aef\u8c03\u8bd5<\/h2>\n<p>Web\u6d4f\u89c8\u5668\u5728\u8fdb\u884c\u4e24\u79cd\u7c7b\u578b\u7684\u901a\u4fe1\u3002\u4e00\u79cd\u662f\u5411Web\u670d\u52a1\u5668\u53d1\u51fa\u8bf7\u6c42\u7684\u901a\u4fe1\uff0c\u53e6\u4e00\u79cd\u662f\u63a5\u6536\u5e76\u54cd\u5e94\u7684\u901a\u4fe1\u3002\u5728Chrome\u6d4f\u89c8\u5668\u4e2d\uff0c\u60a8\u53ef\u4ee5\u9009\u62e9\u83dc\u5355\u6309\u94ae&gt;\u66f4\u591a\u9009\u9879&gt;\u5f00\u53d1\u8005\u5de5\u5177&gt;\u7f51\u7edc\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/39-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.19.37.png\" \/><\/div>\n<p>(1) \u9a8c\u8bc1HTTP\u8bf7\u6c42\u5b9e\u4f53; \u5728Web\u6d4f\u89c8\u5668\u4e2d\u8f93\u5165http:\/\/localhost:3000 &gt; \u9009\u62e9\u8bf7\u6c42\u901a\u4fe1(\u672c\u5730\u4e3b\u673a) &gt; \u9009\u62e9Headers\u9009\u9879\u5361 &gt; \u9009\u62e9General &gt; \u5173\u6ce8\u8bf7\u6c42URL<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/41-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.24.41.png\" \/><\/div>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Headers &gt; Response Headers &gt; view source<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Headers &gt; Request Headers &gt; view source<\/ul>\n<p>\u70b9\u51fb\u6b64view source\u94fe\u63a5\uff0c\u60a8\u53ef\u4ee5\u67e5\u770b\u89e3\u6790\u4e4b\u524d\u7684\u901a\u4fe1\u5185\u5bb9\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/44-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-17 18.22.20.png\" \/><\/div>\n<p>\uff083\uff09HTTP\u72b6\u6001\u7801<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u304a\u306a\u3058\u307f\u306e200, 404, 500\u306a\u3069\u3042\u308a\u307e\u3059\u3002\u8a73\u3057\u304f\u306fRFC\u3092\u53c2\u7167\u306e\u3053\u3068<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Web\u30b5\u30fc\u30d0\u306b\u63a5\u7d9a\u306b\u6210\u529f\u3057\u3066\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u901a\u4fe1\u304c\u53d7\u3051\u53d6\u308c\u305f\u3089200\u3068\u601d\u3063\u3066\u304f\u3060\u3055\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u63a5\u7d9a\u306b\u6210\u529f\u3057\u3066\u3082\u3001\u30b5\u30fc\u30d0\u5074\u3067\u30a8\u30e9\u30fc\u304c\u751f\u3058\u305f\u5834\u5408\u306f400\u756a\u53f0\u3084500\u756a\u53f0\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u63a5\u7d9a\u306b\u5931\u6557\u3057\u305f\u3089\u3001\u305d\u3082\u305d\u3082HTTP\u901a\u4fe1\u304c\u59cb\u3081\u3089\u308c\u306a\u304b\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059<\/ul>\n<hr \/>\n<h1>\u5b9e\u4e60\uff1a\u7f51\u9875\u670d\u52a1\u5668\u7684\u5b9e\u65bd<\/h1>\n<p>\u901a\u8fc7\u9010\u6b65\u4fee\u6539\u670d\u52a1\u5668\u7aef\u7684Node.js\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u7406\u89e3HTTP\u901a\u4fe1\u7684\u5b9e\u9645\u60c5\u51b5\u3002<\/p>\n<h2>HTTP\u5934\u6587\u4ef6Content-Type\u4e0eHTTP\u4e3b\u4f53\u7684\u76f8\u5173\u6027\u4ee5\u53caWeb\u6d4f\u89c8\u5668\u7684\u89e3\u91ca\u3002<\/h2>\n<h3>MIME\u7c7b\u578b\uff1a\u7eaf\u6587\u672c\u7c7b\u578b<\/h3>\n<p>HTTP\u901a\u4fe1\u57fa\u672c\u4e0a\u662f\u53d1\u9001\u548c\u63a5\u6536\u6587\u672c\u6570\u636e\u3002<\/p>\n<p>(1) \u8f93\u51fa\u5199\u5165()<\/p>\n<p>\u5f53\u4f60\u4fee\u6539\u4e86server.js\u6587\u4ef6\u540e\uff0c\u5728\u8c03\u8bd5\u8fd0\u884c\u83dc\u5355\u4e2d\u70b9\u51fb\u65cb\u8f6c\u7bad\u5934\u7684\u5237\u65b0\u6309\u94ae\uff0c\u4f1a\u81ea\u52a8\u505c\u6b62\u8c03\u8bd5\u8fdb\u7a0b\u3001\u4fdd\u5b58\u6587\u4ef6\u3001\u91cd\u65b0\u52a0\u8f7d\u5e76\u5f00\u59cb\u8c03\u8bd5\uff0c\u4e00\u7cfb\u5217\u64cd\u4f5c\u5c06\u88ab\u4e00\u6b21\u6027\u5b8c\u6210\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Hello World<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">();<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>(2) \u53cd\u590d<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"k\">for<\/span><span class=\"p\">(<\/span><span class=\"kd\">var<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"mi\">5<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span><span class=\"o\">++<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Hello World<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">();<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>(3) \u5373\u4f7f\u5199\u4e86\u4e4b\u540e\uff0c\u5e76\u4e0d\u610f\u5473\u7740\u7acb\u5373\u8fdb\u884c\u901a\u4fe1\u3002(\u91cd\u8981)<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">res.write\u884c\u306b\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u4ed5\u639b\u3051\u3066\u304a\u304f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">http:\/\/localhost:3000\/\u3067\u30a2\u30af\u30bb\u30b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u6b62\u307e\u3063\u305f\u3089\u3001\u30b9\u30c6\u30c3\u30d7\u5b9f\u884c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">res.end()\u3067\u521d\u3081\u3066\u30ec\u30b9\u30dd\u30f3\u30b9\u901a\u4fe1\u304c\u958b\u59cb\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3067\u3057\u3087\u3046<\/ul>\n<hr \/>\n<h3>MIME\u7c7b\u578b: \u6587\u672c\/HTML<\/h3>\n<p>(1) \u82e5HTTP\u5934\u90e8\u4e3atext\/html\uff0c\u5219HTTP\u4e3b\u4f53\u7684\u5185\u5bb9\u4e3aHTML\u6587\u6863\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/html<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">&lt;html&gt;&lt;body&gt;&lt;strong&gt;Hello world&lt;\/strong&gt;&lt;\/body&gt;&lt;\/html&gt;<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/64-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-18 09.25.29.png\" \/><\/div>\n<p>\u7f51\u9875\u6d4f\u89c8\u5668\u5c06\u5176\u89e3\u91ca\u4e3aHTML\u6587\u6863\uff0c\u5e76\u7a81\u51fa\u663e\u793a\u4e86&#8221;Hello world&#8221;\u3002<\/p>\n<p>\u5982\u679cHTTP\u8bf7\u6c42\u5934\u4e2d\u7684MIME\u7c7b\u578b\u4e3atext\/plain\uff0c\u4f46HTTP\u4e3b\u4f53\u662fHTML\uff0c\u90a3\u4f1a\u600e\u6837\u5462\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">&lt;html&gt;&lt;body&gt;&lt;strong&gt;Hello world&lt;\/strong&gt;&lt;\/body&gt;&lt;\/html&gt;<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d121437434c4406bf53fd\/68-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-06-18 09.23.26.png\" \/><\/div>\n<p>\u5373\u4f7f\u662fHTML\u6587\u6863\uff0c\u5728\u4ee5text\/plain\u53d1\u9001\u65f6\uff0cWeb\u6d4f\u89c8\u5668\u4e0d\u4f1a\u5c06\u5176\u89e3\u91ca\u4e3aHTML\u6587\u6863\u3002\u901a\u8fc7HTTP\u54cd\u5e94\u901a\u4fe1\u4e2d\u7684setHeader()\u65b9\u6cd5\u8bbe\u7f6e\u7684HTTP\u5934\u4fe1\u606f\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u8fd9\u4f1a\u6539\u53d8Web\u6d4f\u89c8\u5668\u7684\u884c\u4e3a\u3002<\/p>\n<p>\u5728HTTP\u5934\u90e8\u4e2d\uff0c\u53ef\u4ee5\u6307\u5b9aWeb\u6d4f\u89c8\u5668\u7684\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u5728\u4e0b\u8f7d\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528Content-Disposition\u5934\u90e8\u3002\u6211\u4eec\u7a0d\u540e\u4f1a\u8be6\u7ec6\u8ba8\u8bba\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<hr \/>\n<h2>\u4f7f\u7528\u4ece\u6587\u4ef6\u7cfb\u7edf\u8bfb\u53d6\u7684\u5185\u5bb9\u8fdb\u884c\u901a\u4fe1\u7684HTTP\u54cd\u5e94\u3002<\/h2>\n<p>\u5728\u670d\u52a1\u5668\u7aef\uff0c\u5982\u4f55\u5b89\u88c5\u6a21\u5757\uff081\uff09\uff1b\u8981\u6c42<\/p>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4f7f\u7528require\u51fd\u6570\u6765\u5bfc\u5165\u6a21\u5757\u3002\u8fd9\u91cc\u6211\u4eec\u5c06\u5bfc\u5165config\u6a21\u5757\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">...<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/config<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">...<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a&#8221;config.js&#8221;\u7684\u65b0\u6587\u4ef6\uff0c\u5e76\u5728\u4e00\u4e2a\u540d\u4e3a&#8221;exports&#8221;\u7684\u5bf9\u8c61\u4e2d\u8bbe\u7f6e\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">exports<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>server.js\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span>   <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/config<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">&lt;html&gt;&lt;body&gt;&lt;strong&gt;Hello world&lt;\/strong&gt;&lt;\/body&gt;&lt;\/html&gt;<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>(2) \u5f53\u8bbf\u95ee\u6587\u4ef6\u7cfb\u7edf\u65f6\uff0c\u8bf7\u4f7f\u7528fs\u6a21\u5757\u8fdb\u884c\u5f02\u6b65\u8bbf\u95ee\uff0c\u5e38\u5e38\u4f1a\u9047\u5230\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span>   <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span>     <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/config<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n   <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">readFile<\/span><span class=\"p\">(<\/span><span class=\"nx\">__dirname<\/span> <span class=\"o\">+<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">\/server.js<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf-8<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"kd\">function<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">text<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"c1\">\/\/ \u30a8\u30e9\u30fc\u767a\u751f\u6642<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">writeHead<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span> <span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">});<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">page not found<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"c1\">\/\/ return\u3067readFile\u95a2\u6570\u3092\u629c\u3051\u308b<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"nx\">text<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">});<\/span>\r\n  <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u5728VSCode\u4e0a\uff0c\u51fa\u73b0\u4e86NodeError: Cannot set headers after they are sent to the client\u7684\u9519\u8bef\u3002\u4ee5\u4e0b\u7ed9\u51fa\u6b63\u786e\u7684\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">http<\/span>   <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">fs<\/span>     <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/config<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">hostname<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">127.0.0.1<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n   <span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">readFile<\/span><span class=\"p\">(<\/span><span class=\"nx\">__dirname<\/span> <span class=\"o\">+<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">\/server.js<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf-8<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"kd\">function<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">text<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"c1\">\/\/ \u30a8\u30e9\u30fc\u767a\u751f\u6642<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">writeHead<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span> <span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">});<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">page not found<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"c1\">\/\/ return\u3067readFile\u95a2\u6570\u3092\u629c\u3051\u308b<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">statusCode<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">200<\/span><span class=\"p\">;<\/span>                         <span class=\"c1\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9(1)<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">setHeader<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">text\/plain<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ MIME-type(2)<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">write<\/span><span class=\"p\">(<\/span><span class=\"nx\">text<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">end<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">});<\/span>\r\n  <span class=\"c1\">\/\/ res.end(''); \u9593\u9055\u3044<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/span> <span class=\"nx\">hostname<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`Server running at http:\/\/<\/span><span class=\"p\">${<\/span><span class=\"nx\">hostname<\/span><span class=\"p\">}<\/span><span class=\"s2\">:<\/span><span class=\"p\">${<\/span><span class=\"nx\">config<\/span><span class=\"p\">.<\/span><span class=\"nx\">port<\/span><span class=\"p\">}<\/span><span class=\"s2\">\/`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u603b\u7ed3(\u8bfe\u7a0b\u4e00\u5c0f\u65f6)<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u751f\u7c8b\u306ewindows\u30d7\u30ed\u30b0\u30e9\u30de\u5411\u3051\u306bJavascript\u3067Web\u30b5\u30fc\u30d0\u5b9f\u88c5<\/ul>\n<\/li>\n<\/ul>\n<p>nodejs\/VSCode\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<br \/>\n\u30dd\u30fc\u30c8listen<br \/>\n\u30b5\u30fc\u30d0\u30b5\u30a4\u30c9\u30c7\u30d0\u30c3\u30b0<br \/>\n\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30c7\u30d0\u30c3\u30b0<\/p>\n<p>\u6539\u4fee\u5b9f\u7fd2\u3067\u306f\u3001\u81ea\u529b\u3067nodejs\u30b5\u30fc\u30d0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30a2\u30a4\u30c7\u30a2\u3092\u51fa\u3057\u3066\u6539\u4fee\u53ef\u80fd\u306b\u306a\u3063\u305f<\/p>\n<p>MIME-type: text\/plain<br \/>\nMIME-type: text\/html<br \/>\nHTTP\u30d8\u30c3\u30c0Content-Type\u3068HTTP\u30dc\u30c7\u30a3\u306e\u95a2\u4fc2<br \/>\n\u30ec\u30b9\u30dd\u30f3\u30b9\u901a\u4fe1\u306f\u76f4\u3061\u306b\u767a\u751f\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044<br \/>\n\u30b5\u30fc\u30d0\u30b5\u30a4\u30c9\u3067\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u7d44\u8fbc\u65b9\u6cd5(1); require<br \/>\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u30a2\u30af\u30bb\u30b9(\u975e\u540c\u671f)<\/p>\n<p>\u6b21\u56de\u306e\u5185\u5bb9\u306fHTTP\/GET, POST\u3067\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u89e3\u6790\u3067\u3059<br \/>\n\u767a\u5c55\u7684\u306a\u8a71\u984c; \u305d\u306e\u3046\u3061\u3084\u308a\u307e\u3059<\/p>\n<p>Content-Type\u306b\u6307\u5b9a\u3059\u308bMIME-type\u304c\u4ed6\u306b\u3069\u3093\u306a\u3082\u306e\u304c\u3042\u308b\u304b<br \/>\nHTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u610f\u5473\u3092\u62bc\u3055\u3048\u3088\u3046<br \/>\nnodejs\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u7d44\u8fbc\u3092\u62bc\u3055\u3048\u3088\u3046<br \/>\nnodejs\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4fdd\u5b58\u3057\u305f\u3089\u81ea\u52d5\u3067\u30d7\u30ed\u30bb\u30b9\u518d\u8d77\u52d5\u3057\u3066\u3082\u3089\u3044\u305f\u3044\u3093\u3060\u3051\u3069&#8230;<br \/>\nVSCode\/launch.json\u3067\u4f55\u304c\u3067\u304d\u308b\u306e?<br 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