{"id":23596,"date":"2025-04-19T08:07:13","date_gmt":"2025-04-19T00:07:13","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/23596.html"},"modified":"2025-04-19T08:07:13","modified_gmt":"2025-04-19T00:07:13","slug":"node-js-%e5%88%9b%e5%bb%ba-http-%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%9a5%e6%ad%a5%e8%bd%bb%e6%9d%be%e6%90%9e%e5%ae%9a%ef%bc%8c%e4%bd%a0%e4%bc%9a%e4%ba%86%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/23596.html","title":{"rendered":"Node.js \u521b\u5efa HTTP \u670d\u52a1\u5668\uff1a5\u6b65\u8f7b\u677e\u641e\u5b9a\uff0c\u4f60\u4f1a\u4e86\u5417\uff1f"},"content":{"rendered":"<p>&#x1f525;\u5173\u6ce8\u58a8\u747e\u8f69&#xff0c;\u5e26\u4f60\u63a2\u7d22\u7f16\u7a0b\u7684\u5965\u79d8&#xff01;&#x1f680; &#x1f525;\u8d85\u840c\u6280\u672f\u653b\u7565&#xff0c;\u8f7b\u677e\u664b\u7ea7\u7f16\u7a0b\u9ad8\u624b&#x1f680; &#x1f525;\u6280\u672f\u5b9d\u5e93\u5df2\u5907\u597d&#xff0c;\u5c31\u7b49\u4f60\u6765\u6316\u6398&#x1f680; &#x1f525;\u8ba2\u9605\u58a8\u747e\u8f69&#xff0c;\u667a\u8da3\u5b66\u4e60\u4e0d\u5b64\u5355&#x1f680; &#x1f525;\u5373\u523b\u542f\u822a&#xff0c;\u7f16\u7a0b\u4e4b\u65c5\u66f4\u6709\u8da3&#x1f680;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419000712-6802e93097d8d.jpg\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419000712-6802e930d49ea.gif\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u5c0f\u4f19\u4f34\u4eec&#xff0c;\u4f60\u4eec\u662f\u5426\u60f3\u5728\u81ea\u5df1\u7684\u7535\u8111\u4e0a\u642d\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 HTTP \u670d\u52a1\u5668&#xff1f;\u662f\u4e0d\u662f\u89c9\u5f97\u4f20\u7edf\u7684 Apache \u6216 Nginx \u914d\u7f6e\u592a\u9ebb\u70e6\u4e86&#xff1f;\u522b\u62c5\u5fc3&#xff0c;Node.js \u6765\u5e2e\u5fd9\u5566&#xff01;\u4eca\u5929\u6211\u4eec\u6765\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 Node.js \u7684 http \u6a21\u5757\u8f7b\u677e\u521b\u5efa\u4e00\u4e2a HTTP \u670d\u52a1\u5668\u3002&#x1f680;<\/p>\n<h4>1. Node.js \u548c HTTP \u6a21\u5757\u7b80\u4ecb<\/h4>\n<h5>1.1 \u4ec0\u4e48\u662f Node.js&#xff1f;<\/h5>\n<p>Node.js \u662f\u4e00\u4e2a\u57fa\u4e8e Chrome V8 \u5f15\u64ce\u7684 JavaScript \u8fd0\u884c\u73af\u5883\u3002\u5b83\u5141\u8bb8\u4f60\u5728\u670d\u52a1\u5668\u7aef\u8fd0\u884c JavaScript \u4ee3\u7801&#xff0c;\u975e\u5e38\u9002\u5408\u5904\u7406\u9ad8\u5e76\u53d1\u7684 I\/O \u64cd\u4f5c\u3002<\/p>\n<h5>1.2 \u4ec0\u4e48\u662f HTTP \u6a21\u5757&#xff1f;<\/h5>\n<p>Node.js \u5185\u7f6e\u4e86\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684 HTTP \u6a21\u5757&#xff0c;\u53ef\u4ee5\u8ba9\u4f60\u8f7b\u677e\u521b\u5efa HTTP \u670d\u52a1\u5668\u3002\u901a\u8fc7\u8fd9\u4e2a\u6a21\u5757&#xff0c;\u4f60\u53ef\u4ee5\u76d1\u542c\u7279\u5b9a\u7684\u7aef\u53e3&#xff0c;\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff0c;\u5e76\u8fd4\u56de\u54cd\u5e94\u3002<\/p>\n<h4>2. \u5b89\u88c5 Node.js<\/h4>\n<h5>2.1 \u4e0b\u8f7d\u5e76\u5b89\u88c5 Node.js<\/h5>\n<li>\u8bbf\u95ee Node.js \u5b98\u65b9\u7f51\u7ad9&#xff1a;https:\/\/nodejs.org\/<\/li>\n<li>\u4e0b\u8f7d\u6700\u65b0\u7248\u672c\u7684 Node.js \u5b89\u88c5\u5305\u3002<\/li>\n<li>\u53cc\u51fb\u5b89\u88c5\u5305&#xff0c;\u6309\u7167\u63d0\u793a\u5b8c\u6210\u5b89\u88c5\u3002<\/li>\n<h5>2.2 \u9a8c\u8bc1\u5b89\u88c5<\/h5>\n<p>\u6253\u5f00\u547d\u4ee4\u884c\u5de5\u5177&#xff08;\u5982 Windows \u7684 CMD \u6216 macOS \u7684 Terminal&#xff09;&#xff0c;\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u9a8c\u8bc1 Node.js \u662f\u5426\u5b89\u88c5\u6210\u529f&#xff1a;<\/p>\n<p><span class=\"token function\">node<\/span> <span class=\"token parameter variable\">-v<\/span><br \/>\n<span class=\"token function\">npm<\/span> <span class=\"token parameter variable\">-v<\/span><\/p>\n<p>\u5982\u679c\u5b89\u88c5\u6210\u529f&#xff0c;\u4f1a\u663e\u793a Node.js \u548c npm \u7684\u7248\u672c\u53f7\u3002<\/p>\n<h4>3. \u521b\u5efa HTTP \u670d\u52a1\u5668<\/h4>\n<h5>3.1 \u521b\u5efa\u9879\u76ee\u6587\u4ef6\u5939<\/h5>\n<p>\u5728\u4f60\u559c\u6b22\u7684\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u5939&#xff0c;\u7528\u4e8e\u5b58\u653e\u9879\u76ee\u6587\u4ef6\u3002<\/p>\n<p><span class=\"token function\">mkdir<\/span> my-http-server<br \/>\n<span class=\"token builtin class-name\">cd<\/span> my-http-server<\/p>\n<h5>3.2 \u521d\u59cb\u5316\u9879\u76ee<\/h5>\n<p>\u5728\u9879\u76ee\u6587\u4ef6\u5939\u4e2d\u521d\u59cb\u5316\u4e00\u4e2a\u65b0\u7684 Node.js \u9879\u76ee&#xff1a;<\/p>\n<p><span class=\"token function\">npm<\/span> init <span class=\"token parameter variable\">-y<\/span><\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a package.json \u6587\u4ef6&#xff0c;\u8bb0\u5f55\u9879\u76ee\u7684\u4f9d\u8d56\u548c\u5176\u4ed6\u5143\u6570\u636e\u3002<\/p>\n<h5>3.3 \u7f16\u5199\u670d\u52a1\u5668\u4ee3\u7801<\/h5>\n<p>\u5728\u9879\u76ee\u6587\u4ef6\u5939\u4e2d\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a server.js \u7684\u6587\u4ef6&#xff0c;\u5e76\u7f16\u5199\u4ee5\u4e0b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u5f15\u5165 http \u6a21\u5757<\/span><br \/>\n<span class=\"token keyword\">const<\/span> http <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;http&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa HTTP \u670d\u52a1\u5668<\/span><br \/>\n<span class=\"token keyword\">const<\/span> server <span class=\"token operator\">&#061;<\/span> http<span class=\"token punctuation\">.<\/span><span class=\"token function\">createServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u54cd\u5e94\u5934<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">writeHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u54cd\u5e94\u5185\u5bb9<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Hello, World!\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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\">\/\/ \u76d1\u542c 3000 \u7aef\u53e3<\/span><br \/>\nserver<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u670d\u52a1\u5668\u8fd0\u884c\u5728 http:\/\/localhost:3000\/&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>3.4 \u89e3\u6790\u4ee3\u7801<\/h5>\n<li>\u5f15\u5165 http \u6a21\u5757&#xff1a;\u4f7f\u7528 require \u51fd\u6570\u5f15\u5165 Node.js \u5185\u7f6e\u7684 http \u6a21\u5757\u3002<\/li>\n<li>\u521b\u5efa HTTP \u670d\u52a1\u5668&#xff1a;\u4f7f\u7528 http.createServer \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a HTTP \u670d\u52a1\u5668\u3002\u8be5\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u56de\u8c03\u51fd\u6570&#xff0c;\u8be5\u56de\u8c03\u51fd\u6570\u4f1a\u5728\u6bcf\u6b21\u63a5\u6536\u5230\u8bf7\u6c42\u65f6\u88ab\u8c03\u7528\u3002\u56de\u8c03\u51fd\u6570\u6709\u4e24\u4e2a\u53c2\u6570&#xff1a;req&#xff08;\u8bf7\u6c42\u5bf9\u8c61&#xff09;\u548c res&#xff08;\u54cd\u5e94\u5bf9\u8c61&#xff09;\u3002<\/li>\n<li>\u8bbe\u7f6e\u54cd\u5e94\u5934&#xff1a;\u4f7f\u7528 res.writeHead \u65b9\u6cd5\u8bbe\u7f6e\u54cd\u5e94\u7684\u72b6\u6001\u7801\u548c\u54cd\u5e94\u5934\u3002\u72b6\u6001\u7801 200 \u8868\u793a\u8bf7\u6c42\u6210\u529f&#xff0c;\u54cd\u5e94\u5934 Content-Type: text\/plain \u8868\u793a\u54cd\u5e94\u5185\u5bb9\u662f\u7eaf\u6587\u672c\u3002<\/li>\n<li>\u8bbe\u7f6e\u54cd\u5e94\u5185\u5bb9&#xff1a;\u4f7f\u7528 res.end \u65b9\u6cd5\u53d1\u9001\u54cd\u5e94\u5185\u5bb9\u5e76\u5173\u95ed\u54cd\u5e94\u3002<\/li>\n<li>\u76d1\u542c\u7aef\u53e3&#xff1a;\u4f7f\u7528 server.listen \u65b9\u6cd5\u8ba9\u670d\u52a1\u5668\u76d1\u542c\u6307\u5b9a\u7684\u7aef\u53e3&#xff08;\u8fd9\u91cc\u662f 3000 \u7aef\u53e3&#xff09;\u3002\u56de\u8c03\u51fd\u6570\u4f1a\u5728\u670d\u52a1\u5668\u5f00\u59cb\u76d1\u542c\u7aef\u53e3\u65f6\u88ab\u8c03\u7528&#xff0c;\u901a\u5e38\u7528\u4e8e\u8f93\u51fa\u63d0\u793a\u4fe1\u606f\u3002<\/li>\n<h4>4. \u8fd0\u884c\u670d\u52a1\u5668<\/h4>\n<p>\u5728\u547d\u4ee4\u884c\u5de5\u5177\u4e2d&#xff0c;\u5bfc\u822a\u5230\u9879\u76ee\u6587\u4ef6\u5939&#xff0c;\u7136\u540e\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8\u670d\u52a1\u5668&#xff1a;<\/p>\n<p><span class=\"token function\">node<\/span> server.js<\/p>\n<p>\u5982\u679c\u4e00\u5207\u6b63\u5e38&#xff0c;\u4f60\u4f1a\u770b\u5230\u63a7\u5236\u53f0\u8f93\u51fa&#xff1a;<\/p>\n<p>\u670d\u52a1\u5668\u8fd0\u884c\u5728 http:\/\/localhost:3000\/<\/p>\n<h4>5. \u6d4b\u8bd5\u670d\u52a1\u5668<\/h4>\n<p>\u6253\u5f00\u6d4f\u89c8\u5668&#xff0c;\u8bbf\u95ee http:\/\/localhost:3000\/&#xff0c;\u4f60\u4f1a\u770b\u5230\u9875\u9762\u663e\u793a&#xff1a;<\/p>\n<p>Hello, World!<\/p>\n<p>\u606d\u559c\u4f60&#xff0c;\u4f60\u5df2\u7ecf\u6210\u529f\u521b\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684 HTTP \u670d\u52a1\u5668&#xff01;&#x1f389;<\/p>\n<h4>6. \u6df1\u5ea6\u89e3\u6790\u6bcf\u4e00\u6b65\u9aa4<\/h4>\n<h5>6.1 \u5f15\u5165 http \u6a21\u5757<\/h5>\n<p><span class=\"token keyword\">const<\/span> http <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;http&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u5f15\u5165 Node.js \u5185\u7f6e\u7684 http \u6a21\u5757\u3002<\/li>\n<li>\u539f\u7406&#xff1a;require \u51fd\u6570\u7528\u4e8e\u52a0\u8f7d\u6a21\u5757\u3002http \u6a21\u5757\u63d0\u4f9b\u4e86\u521b\u5efa HTTP \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u529f\u80fd\u3002<\/li>\n<\/ul>\n<h5>6.2 \u521b\u5efa HTTP \u670d\u52a1\u5668<\/h5>\n<p><span class=\"token keyword\">const<\/span> server <span class=\"token operator\">&#061;<\/span> http<span class=\"token punctuation\">.<\/span><span class=\"token function\">createServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u54cd\u5e94\u5934<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">writeHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u54cd\u5e94\u5185\u5bb9<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Hello, World!\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u521b\u5efa\u4e00\u4e2a HTTP \u670d\u52a1\u5668\u3002<\/li>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>req&#xff1a;\u8bf7\u6c42\u5bf9\u8c61&#xff0c;\u5305\u542b\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u4fe1\u606f\u3002<\/li>\n<li>res&#xff1a;\u54cd\u5e94\u5bf9\u8c61&#xff0c;\u7528\u4e8e\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u65b9\u6cd5&#xff1a;\n<ul>\n<li>res.writeHead&#xff1a;\u8bbe\u7f6e\u54cd\u5e94\u7684\u72b6\u6001\u7801\u548c\u54cd\u5e94\u5934\u3002<\/li>\n<li>res.end&#xff1a;\u53d1\u9001\u54cd\u5e94\u5185\u5bb9\u5e76\u5173\u95ed\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>6.3 \u76d1\u542c\u7aef\u53e3<\/h5>\n<p>server<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u670d\u52a1\u5668\u8fd0\u884c\u5728 http:\/\/localhost:3000\/&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u4f5c\u7528&#xff1a;\u8ba9\u670d\u52a1\u5668\u76d1\u542c\u6307\u5b9a\u7684\u7aef\u53e3\u3002<\/li>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>3000&#xff1a;\u76d1\u542c\u7684\u7aef\u53e3\u53f7\u3002<\/li>\n<li>\u56de\u8c03\u51fd\u6570&#xff1a;\u5728\u670d\u52a1\u5668\u5f00\u59cb\u76d1\u542c\u7aef\u53e3\u65f6\u88ab\u8c03\u7528&#xff0c;\u901a\u5e38\u7528\u4e8e\u8f93\u51fa\u63d0\u793a\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>7. \u8fdb\u9636\u7528\u6cd5<\/h4>\n<h5>7.1 \u5904\u7406\u4e0d\u540c\u7684 HTTP \u8bf7\u6c42<\/h5>\n<p>\u4f60\u53ef\u4ee5\u6839\u636e\u8bf7\u6c42\u7684\u65b9\u6cd5&#xff08;\u5982 GET\u3001POST&#xff09;\u548c\u8def\u5f84&#xff08;\u5982 \/\u3001\/about&#xff09;\u6765\u5904\u7406\u4e0d\u540c\u7684\u8bf7\u6c42\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> server <span class=\"token operator\">&#061;<\/span> http<span class=\"token punctuation\">.<\/span><span class=\"token function\">createServer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span>method <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;GET&#039;<\/span> <span class=\"token operator\">&amp;&amp;<\/span> req<span class=\"token punctuation\">.<\/span>url <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">writeHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Welcome to the home page!\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>req<span class=\"token punctuation\">.<\/span>method <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;POST&#039;<\/span> <span class=\"token operator\">&amp;&amp;<\/span> req<span class=\"token punctuation\">.<\/span>url <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;\/submit&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> body <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        req<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;data&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token parameter\">chunk<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            body <span class=\"token operator\">&#043;&#061;<\/span> chunk<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        req<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;end&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            res<span class=\"token punctuation\">.<\/span><span class=\"token function\">writeHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">Received POST data: <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>body<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/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        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">writeHead<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">404<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Not Found\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>7.2 \u4f7f\u7528\u8def\u7531\u6a21\u5757<\/h5>\n<p>\u968f\u7740\u9879\u76ee\u590d\u6742\u5ea6\u7684\u589e\u52a0&#xff0c;\u624b\u52a8\u5904\u7406\u4e0d\u540c\u7684\u8bf7\u6c42\u8def\u5f84\u4f1a\u53d8\u5f97\u975e\u5e38\u7e41\u7410\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u8def\u7531\u6a21\u5757&#xff08;\u5982 express&#xff09;\u6765\u7b80\u5316\u8def\u7531\u5904\u7406\u3002\u4f8b\u5982&#xff1a;<\/p>\n<li>\u5b89\u88c5 express&#xff1a;<\/li>\n<p><span class=\"token function\">npm<\/span> <span class=\"token function\">install<\/span> express<\/p>\n<li>\u4fee\u6539 server.js \u6587\u4ef6&#xff1a;<\/li>\n<p><span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Welcome to the home page!&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">post<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/submit&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Received POST data&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u670d\u52a1\u5668\u8fd0\u884c\u5728 http:\/\/localhost:3000\/&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>8. \u603b\u7ed3<\/h4>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd&#xff0c;\u76f8\u4fe1\u4f60\u5df2\u7ecf\u5b66\u4f1a\u4e86\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528 http \u6a21\u5757\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 HTTP \u670d\u52a1\u5668\u3002\u65e0\u8bba\u662f\u5904\u7406\u57fa\u672c\u7684 GET \u548c POST \u8bf7\u6c42&#xff0c;\u8fd8\u662f\u4f7f\u7528\u8def\u7531\u6a21\u5757\u7b80\u5316\u8def\u7531\u5904\u7406&#xff0c;Node.js \u90fd\u80fd\u8f7b\u677e\u5e94\u5bf9\u3002\u4e0b\u6b21\u9700\u8981\u521b\u5efa HTTP \u670d\u52a1\u5668\u65f6&#xff0c;\u4e0d\u59a8\u8bd5\u8bd5\u8fd9\u4e9b\u65b9\u6cd5&#xff0c;\u4f60\u4f1a\u53d1\u73b0\u5b83\u4eec\u4e0d\u4ec5\u529f\u80fd\u5f3a\u5927&#xff0c;\u800c\u4e14\u4f7f\u7528\u8d77\u6765\u4e5f\u975e\u5e38\u65b9\u4fbf\u54e6&#xff01;&#x1f31f;<\/p>\n<hr 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\u670d\u52a1\u5668\u3002\u901a\u8fc7\u8fd9\u4e2a\u6a21\u5757\uff0c\u4f60\u53ef\u4ee5\u76d1\u542c\u7279\u5b9a\u7684\u7aef\u53e3\uff0c\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u5e76\u8fd4\u56de\u54cd\u5e94\u3002\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u4f60\u5df2\u7ecf\u5b66\u4f1a\u4e86\u5982\u4f55\u5728 Node.js \u4e2d\u4f7f\u7528http\u6a21\u5757\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684 HTTP \u670d\u52a1\u5668\u3002<\/p>\n","protected":false},"author":2,"featured_media":23594,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[151,187,186,43],"topic":[],"class_list":["post-23596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-http","tag-javascript","tag-node-js","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Node.js 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