{"id":48580,"date":"2025-07-30T12:38:41","date_gmt":"2025-07-30T04:38:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48580.html"},"modified":"2025-07-30T12:38:41","modified_gmt":"2025-07-30T04:38:41","slug":"node-js-%e6%9c%8d%e5%8a%a1%e5%99%a8%e8%bf%90%e8%a1%8c%e9%80%bb%e8%be%91-nginx%e5%8e%9f%e7%90%86%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48580.html","title":{"rendered":"Node.js \u670d\u52a1\u5668\u8fd0\u884c\u903b\u8f91 \/ Nginx\u539f\u7406\u8be6\u89e3"},"content":{"rendered":"<p>Node.js \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u670d\u52a1\u5668\u7aef JavaScript \u8fd0\u884c\u73af\u5883&#xff0c;\u5e7f\u6cdb\u7528\u4e8e\u6784\u5efa\u9ad8\u6548\u7684 Web \u670d\u52a1\u3002\u672c\u6587\u5c06\u7528\u6700\u901a\u4fd7\u7684\u8bed\u8a00&#xff0c;\u8be6\u7ec6\u8bb2\u89e3 Node.js \u7684\u5355\u7ebf\u7a0b\u673a\u5236\u3001\u4e8b\u4ef6\u5faa\u73af\u3001Nginx \u53cd\u5411\u4ee3\u7406\u3001\u540c\u6b65\u4e0e\u5f02\u6b65\u3001\u5b8f\u4efb\u52a1\u4e0e\u5fae\u4efb\u52a1\u3001\u7ebf\u7a0b\u4e0e\u534f\u7a0b\u7b49\u6838\u5fc3\u6982\u5ff5\u3002<\/p>\n<h3>1. Node.js \u7684\u8fd0\u884c\u903b\u8f91&#xff1a;\u5355\u7ebf\u7a0b\u7684\u201c\u8d85\u7ea7\u5fd9\u788c\u6536\u94f6\u5458\u201d<\/h3>\n<h4>1.1 \u4ec0\u4e48\u662f Node.js&#xff1f;<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b9a\u4e49 &#xff1a;Node.js \u662f\u4e00\u4e2a\u8ba9 JavaScript \u8fd0\u884c\u5728\u670d\u52a1\u5668\u4e0a\u7684\u5de5\u5177\u3002\u5e73\u65f6 JavaScript \u8dd1\u5728\u6d4f\u89c8\u5668\u91cc&#xff08;\u5904\u7406\u7f51\u9875\u4ea4\u4e92&#xff0c;\u5982\u6309\u94ae\u70b9\u51fb&#xff09;&#xff0c;\u800c Node.js \u8ba9 JavaScript \u80fd\u5e72\u670d\u52a1\u5668\u7684\u4e8b&#xff0c;\u6bd4\u5982\u5904\u7406\u7528\u6237\u8bf7\u6c42\u3001\u8bfb\u5199\u6587\u4ef6\u3001\u642d\u5efa\u7f51\u7ad9\u540e\u53f0\u3002<\/p>\n<p>\u6838\u5fc3\u7279\u70b9 &#xff1a;<\/p>\n<ul>\n<li>\u5355\u7ebf\u7a0b &#xff1a;Node.js \u53ea\u6709\u4e00\u4e2a\u4e3b\u7ebf\u7a0b&#xff0c;\u50cf\u4e00\u4e2a\u8d85\u7ea7\u5fd9\u788c\u7684\u6536\u94f6\u5458&#xff0c;\u4e00\u6b21\u53ea\u5904\u7406\u4e00\u4e2a\u4efb\u52a1&#xff0c;\u4f46\u6548\u7387\u6781\u9ad8\u3002<\/li>\n<li>\u5f02\u6b65\u9a71\u52a8 &#xff1a;\u6162\u4efb\u52a1&#xff08;\u50cf\u8bbf\u95ee\u7f51\u7edc\u3001\u8bfb\u6587\u4ef6&#xff09;\u4e0d\u4f1a\u8ba9\u4e3b\u7ebf\u7a0b\u5361\u4f4f&#xff0c;Node.js \u628a\u8fd9\u4e9b\u4efb\u52a1\u4ea4\u7ed9\u201c\u540e\u53f0\u5e2e\u624b\u201d&#xff0c;\u81ea\u5df1\u7ee7\u7eed\u5904\u7406\u5176\u4ed6\u8bf7\u6c42\u3002<\/li>\n<li>\u8f7b\u91cf\u9ad8\u6548 &#xff1a;Node.js \u5360\u7528\u5185\u5b58\u5c11&#xff0c;\u9002\u5408\u5b9e\u65f6\u5e94\u7528&#xff08;\u50cf\u804a\u5929\u5ba4\u3001\u7f51\u9875\u670d\u52a1\u5668&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48\u7528 Node.js &#xff1f;<\/p>\n<ul>\n<li>\u7b80\u5355 &#xff1a;\u524d\u7aef\u5f00\u53d1\u8005\u719f\u6089 JavaScript&#xff0c;\u5199\u670d\u52a1\u5668\u4ee3\u7801\u5bb9\u6613\u4e0a\u624b\u3002<\/li>\n<li>\u9ad8\u6548 &#xff1a;\u80fd\u5feb\u901f\u5904\u7406\u5927\u91cf\u8bf7\u6c42&#xff0c;\u9002\u5408\u9ad8\u5e76\u53d1\u573a\u666f\u3002<\/li>\n<li>\u751f\u6001\u4e30\u5bcc &#xff1a;\u6709 Express\u3001Koa \u7b49\u6846\u67b6&#xff0c;\u5f00\u53d1\u6548\u7387\u9ad8\u3002<\/li>\n<\/ul>\n<p>\u5e94\u7528\u573a\u666f &#xff1a;<\/p>\n<ul>\n<li>\u7f51\u9875\u670d\u52a1\u5668 &#xff1a;\u5904\u7406\u7528\u6237\u8bbf\u95ee&#xff0c;\u8fd4\u56de\u7f51\u9875\u6216\u6570\u636e\u3002<\/li>\n<li>API \u670d\u52a1 &#xff1a;\u4e3a\u624b\u673a App \u6216\u524d\u7aef\u63d0\u4f9b\u6570\u636e\u63a5\u53e3\u3002<\/li>\n<li>\u5b9e\u65f6\u5e94\u7528 &#xff1a;\u5982\u5728\u7ebf\u804a\u5929\u3001\u76f4\u64ad\u5f39\u5e55\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>Node.js \u50cf\u5feb\u9910\u5e97\u7684\u552f\u4e00\u6536\u94f6\u5458&#xff0c;\u53ea\u6709\u4e00\u53cc\u624b&#xff08;\u5355\u7ebf\u7a0b&#xff09;&#xff0c;\u4f46\u5979\u52a8\u4f5c\u98de\u5feb&#xff0c;\u80fd\u4e00\u8fb9\u6536\u94b1\u3001\u4e00\u8fb9\u6253\u5305&#xff0c;\u8fd8\u628a\u6162\u6d3b&#xff08;\u50cf\u70e4\u6c49\u5821&#xff09;\u6254\u7ed9\u540e\u53a8&#xff08;\u540e\u53f0&#xff09;&#xff0c;\u770b\u8d77\u6765\u50cf\u540c\u65f6\u670d\u52a1\u5f88\u591a\u987e\u5ba2\u3002<\/p>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u5199\u4e00\u4e2a\u7b80\u5355\u7684 Node.js \u670d\u52a1\u5668&#xff0c;\u8fd4\u56de\u201c\u6b22\u8fce\u201d&#xff1a;<\/p>\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><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  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\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;text\/plain; charset&#061;utf-8&#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;\u6b22\u8fce\u4f7f\u7528 Node.js&#xff01;&#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><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> 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\u8dd1\u5728 http:\/\/localhost:3000&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd0\u884c\u6b65\u9aa4 &#xff1a;<\/p>\n<li>\u4fdd\u5b58\u4ee3\u7801\u4e3a server.js\u3002<\/li>\n<li>\u547d\u4ee4\u884c\u8fd0\u884c&#xff1a;node server.js\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u8bbf\u95ee http:\/\/localhost:3000&#xff0c;\u770b\u5230\u201c\u6b22\u8fce\u4f7f\u7528 Node.js&#xff01;\u201d\u3002<\/li>\n<p>\u89e3\u91ca &#xff1a;<\/p>\n<ul>\n<li>http.createServer \u521b\u5efa\u670d\u52a1\u5668&#xff0c;\u76d1\u542c 3000 \u7aef\u53e3\u3002<\/li>\n<li>\u6bcf\u6b21\u7528\u6237\u8bbf\u95ee&#xff0c;Node.js \u7684\u4e3b\u7ebf\u7a0b\u5904\u7406\u8bf7\u6c42&#xff0c;\u8fd4\u56de\u54cd\u5e94\u3002<\/li>\n<li>3000 \u7aef\u53e3\u662f\u5f00\u53d1\u5e38\u7528\u7684\u975e\u6807\u51c6\u7aef\u53e3&#xff0c;\u6b63\u5f0f\u90e8\u7f72\u53ef\u80fd\u7528 80 \u7aef\u53e3\u3002<\/li>\n<\/ul>\n<h4>1.2 \u5355\u7ebf\u7a0b vs \u591a\u7ebf\u7a0b<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u7ebf\u7a0b\u662f\u4ec0\u4e48 &#xff1f;<\/p>\n<p>\u7ebf\u7a0b\u662f CPU \u6267\u884c\u4efb\u52a1\u7684\u6700\u5c0f\u5355\u4f4d&#xff0c;\u50cf\u4e00\u4e2a\u5de5\u4eba\u72ec\u7acb\u5e72\u6d3b\u3002CPU \u901a\u8fc7\u201c\u65f6\u95f4\u7247\u201d\u5206\u914d\u65f6\u95f4&#xff08;\u6bd4\u5982\u6bcf\u79d2\u5207\u6362\u51e0\u767e\u6b21&#xff09;&#xff0c;\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u770b\u8d77\u6765\u50cf\u540c\u65f6\u8fd0\u884c\u3002<\/p>\n<p>\u5355\u7ebf\u7a0b&#xff08;Node.js&#xff09; &#xff1a;<\/p>\n<ul>\n<li>Node.js \u53ea\u6709\u4e00\u4e2a\u4e3b\u7ebf\u7a0b&#xff0c;\u987a\u5e8f\u5904\u7406\u4efb\u52a1&#xff0c;\u50cf\u4e00\u4e2a\u6536\u94f6\u5458\u4e00\u6b21\u670d\u52a1\u4e00\u4e2a\u987e\u5ba2\u3002<\/li>\n<li>\u4f18\u70b9 &#xff1a;\n<ul>\n<li>\u7b80\u5355 &#xff1a;\u4e0d\u7528\u62c5\u5fc3\u591a\u4e2a\u7ebf\u7a0b\u62a2\u8d44\u6e90&#xff08;\u50cf\u591a\u4e2a\u5de5\u4eba\u62a2\u5de5\u5177&#xff09;\u3002<\/li>\n<li>\u7701\u5185\u5b58 &#xff1a;\u4e00\u4e2a\u7ebf\u7a0b\u5360\u7528\u7684\u5185\u5b58\u5c11&#xff0c;\u9002\u5408\u8f7b\u91cf\u670d\u52a1\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7f3a\u70b9 &#xff1a;\u6162\u4efb\u52a1&#xff08;\u50cf\u8bfb\u5927\u6587\u4ef6&#xff09;\u53ef\u80fd\u963b\u585e\u4e3b\u7ebf\u7a0b&#xff0c;\u5176\u4ed6\u8bf7\u6c42\u5f97\u7b49\u7740\u3002<\/li>\n<li>\u89e3\u51b3\u529e\u6cd5 &#xff1a;Node.js \u7528\u5f02\u6b65\u628a\u6162\u4efb\u52a1\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u7ee7\u7eed\u5e72\u522b\u7684\u3002<\/li>\n<\/ul>\n<p>\u591a\u7ebf\u7a0b &#xff1a;<\/p>\n<ul>\n<li>\u50cf Java \u6216 Python \u7684\u67d0\u4e9b\u670d\u52a1\u5668&#xff0c;\u53ef\u4ee5\u6709\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u5e72\u6d3b&#xff0c;\u4e00\u4e2a\u7ebf\u7a0b\u5904\u7406\u8bf7\u6c42 A&#xff0c;\u53e6\u4e00\u4e2a\u5904\u7406\u8bf7\u6c42 B\u3002<\/li>\n<li>\u4f18\u70b9 &#xff1a;\u80fd\u771f\u6b63\u5e76\u884c&#xff0c;\u9002\u5408 CPU \u5bc6\u96c6\u4efb\u52a1&#xff08;\u50cf\u590d\u6742\u8ba1\u7b97&#xff09;\u3002<\/li>\n<li>\u7f3a\u70b9 &#xff1a;\n<ul>\n<li>\u590d\u6742 &#xff1a;\u7ebf\u7a0b\u95f4\u53ef\u80fd\u62a2\u8d44\u6e90&#xff0c;\u9700\u7528\u201c\u9501\u201d\u534f\u8c03&#xff0c;\u7f16\u7a0b\u96be\u5ea6\u9ad8\u3002<\/li>\n<li>\u8017\u5185\u5b58 &#xff1a;\u6bcf\u4e2a\u7ebf\u7a0b\u9700\u8981\u989d\u5916\u5185\u5b58\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Node.js \u7684\u540e\u53f0\u7ebf\u7a0b &#xff1a;<\/p>\n<p>\u867d\u7136\u4e3b\u7ebf\u7a0b\u662f\u5355\u7ebf\u7a0b&#xff0c;Node.js \u5185\u90e8\u7528\u4e00\u4e2a\u7ebf\u7a0b\u6c60&#xff08;\u7531 libuv \u5e93\u63d0\u4f9b&#xff09;\u5904\u7406\u6162\u4efb\u52a1&#xff08;\u50cf\u6587\u4ef6\u8bfb\u5199\u3001\u7f51\u7edc\u8bf7\u6c42&#xff09;\u3002\u8fd9\u4e9b\u540e\u53f0\u7ebf\u7a0b\u5bf9\u7a0b\u5e8f\u5458\u900f\u660e&#xff0c;\u4f60\u53ea\u7ba1\u5199 JavaScript&#xff0c;Node.js \u81ea\u52a8\u5b89\u6392\u3002<\/p>\n<p>CPU \u65f6\u95f4\u7247 &#xff1a;<\/p>\n<p>CPU \u7ed9\u6bcf\u4e2a\u7ebf\u7a0b\u5206\u914d\u77ed\u6682\u65f6\u95f4&#xff08;\u51e0\u6beb\u79d2&#xff09;&#xff0c;\u5feb\u901f\u5207\u6362&#xff0c;\u6a21\u62df\u5e76\u884c\u3002Node.js \u5355\u7ebf\u7a0b\u4e0d\u7528\u5206\u65f6\u95f4\u7247&#xff0c;\u9760\u4e8b\u4ef6\u5faa\u73af\u8c03\u5ea6\u4efb\u52a1\u3002<\/p>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<ul>\n<li>\u5355\u7ebf\u7a0b&#xff08;Node.js&#xff09; &#xff1a;\u4e00\u4e2a\u53a8\u5e08\u7092\u83dc&#xff0c;\u52a8\u4f5c\u5feb&#xff0c;\u628a\u6162\u6d3b&#xff08;\u50cf\u716e\u6c64&#xff09;\u4ea4\u7ed9\u540e\u53a8&#xff0c;\u81ea\u5df1\u7ee7\u7eed\u7092\u83dc\u3002<\/li>\n<li>\u591a\u7ebf\u7a0b &#xff1a;\u591a\u4e2a\u53a8\u5e08\u540c\u65f6\u7092\u83dc&#xff0c;\u6bcf\u4eba\u4e00\u4e2a\u7076\u53f0&#xff0c;\u80fd\u5e76\u884c&#xff0c;\u4f46\u53ef\u80fd\u62a2\u9505&#xff0c;\u5f97\u534f\u8c03\u597d\u3002<\/li>\n<li>CPU \u65f6\u95f4\u7247 &#xff1a;\u8001\u677f\u7ed9\u6bcf\u4e2a\u53a8\u5e08\u51e0\u79d2\u949f\u5e72\u6d3b&#xff0c;\u5feb\u901f\u8f6e\u6362&#xff0c;\u770b\u8d77\u6765\u50cf\u540c\u65f6\u7092\u83dc\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u5355\u7ebf\u7a0b&#xff08;Node.js&#xff09; &#xff1a;<\/p>\n<p>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5904\u7406\u8bf7\u6c421&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5904\u7406\u8bf7\u6c422&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6162\u4efb\u52a1&#xff0c;1\u79d2\u540e<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5904\u7406\u8bf7\u6c423&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u5904\u7406\u8bf7\u6c421 \u2192 \u5904\u7406\u8bf7\u6c423 \u2192 &#xff08;1\u79d2\u540e&#xff09;\u5904\u7406\u8bf7\u6c422<\/p>\n<p>\u89e3\u91ca &#xff1a;<\/p>\n<ul>\n<li>\u4e3b\u7ebf\u7a0b\u5148\u8dd1\u540c\u6b65\u4ee3\u7801&#xff08;\u8bf7\u6c421\u3001\u8bf7\u6c423&#xff09;\u3002<\/li>\n<li>setTimeout \u662f\u5f02\u6b65\u4efb\u52a1&#xff0c;\u4ea4\u7ed9\u540e\u53f0&#xff0c;1\u79d2\u540e\u7531\u4e8b\u4ef6\u5faa\u73af\u8c03\u5ea6\u8f93\u51fa \u8bf7\u6c422\u3002<\/li>\n<\/ul>\n<p>\u591a\u7ebf\u7a0b&#xff08;\u4f2a\u4ee3\u7801&#xff0c;\u5047\u8bbe Java&#xff09; &#xff1a;<\/p>\n<p>thread1<span class=\"token operator\">:<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5904\u7406\u8bf7\u6c421&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nthread2<span class=\"token operator\">:<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5904\u7406\u8bf7\u6c422&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u53ef\u80fd\u4e71\u5e8f&#xff0c;\u5982 \u8bf7\u6c421 \u548c \u8bf7\u6c422 \u540c\u65f6\u51fa\u73b0\u3002<\/p>\n<p>\u89e3\u91ca &#xff1a;\u4e24\u4e2a\u7ebf\u7a0b\u5e76\u884c\u8dd1&#xff0c;CPU \u5206\u914d\u65f6\u95f4\u7247&#xff0c;\u8f93\u51fa\u987a\u5e8f\u4e0d\u786e\u5b9a\u3002<\/p>\n<h4>1.3 \u4e3a\u4ec0\u4e48 Node.js \u5355\u7ebf\u7a0b\u8fd8\u5feb&#xff1f;<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>Node.js \u9760\u5f02\u6b65\u548c\u4e8b\u4ef6\u5faa\u73af\u89e3\u51b3\u5355\u7ebf\u7a0b\u7684\u74f6\u9888&#xff1a;<\/p>\n<ul>\n<li>\u5f02\u6b65 &#xff1a;\u6162\u4efb\u52a1&#xff08;\u50cf\u8bfb\u6587\u4ef6\u3001\u8bbf\u95ee\u7f51\u7edc&#xff09;\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u4e0d\u7b49\u7ed3\u679c&#xff0c;\u7ee7\u7eed\u5904\u7406\u5176\u4ed6\u4efb\u52a1\u3002<\/li>\n<li>\u4e8b\u4ef6\u5faa\u73af &#xff1a;\u50cf\u4e00\u4e2a\u4efb\u52a1\u8c03\u5ea6\u5458&#xff0c;\u4e0d\u65ad\u68c0\u67e5\u540e\u53f0\u4efb\u52a1\u662f\u5426\u5b8c\u6210&#xff0c;\u4f18\u5148\u5904\u7406\u5feb\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<p>\u9002\u7528\u573a\u666f &#xff1a;<\/p>\n<ul>\n<li>\u9002\u5408 I\/O \u5bc6\u96c6\u4efb\u52a1 &#xff1a;\u50cf\u7f51\u7edc\u8bf7\u6c42\u3001\u6587\u4ef6\u64cd\u4f5c&#xff0c;\u56e0\u4e3a\u5f02\u6b65\u4e0d\u963b\u585e\u3002<\/li>\n<li>\u4e0d\u9002\u5408 CPU \u5bc6\u96c6\u4efb\u52a1 &#xff1a;\u50cf\u590d\u6742\u8ba1\u7b97&#xff0c;\u56e0\u4e3a\u5355\u7ebf\u7a0b\u8ba1\u7b97\u80fd\u529b\u6709\u9650\u3002<\/li>\n<\/ul>\n<p>\u9ad8\u5e76\u53d1 &#xff1a;<\/p>\n<p>Node.js \u80fd\u540c\u65f6\u5904\u7406\u5927\u91cf\u8bf7\u6c42&#xff08;\u6bd4\u5982 100 \u4e2a\u7528\u6237\u8bbf\u95ee&#xff09;&#xff0c;\u56e0\u4e3a\u6162\u4efb\u52a1\u4e0d\u5360\u4e3b\u7ebf\u7a0b&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u5feb\u901f\u8c03\u5ea6\u3002<\/p>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>Node.js \u50cf\u4e00\u4e2a\u6536\u94f6\u5458&#xff0c;\u987e\u5ba2\u70b9\u6c49\u5821&#xff08;\u6162\u4efb\u52a1&#xff09;\u65f6&#xff0c;\u5979\u628a\u8ba2\u5355\u6254\u7ed9\u540e\u53a8&#xff0c;\u81ea\u5df1\u7ee7\u7eed\u6536\u94b1&#xff08;\u5904\u7406\u65b0\u8bf7\u6c42&#xff09;\u3002\u540e\u53a8\u505a\u597d\u6c49\u5821&#xff0c;\u5979\u518d\u62ff\u7ed9\u987e\u5ba2\u3002<\/p>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u5f02\u6b65\u5904\u7406\u591a\u8bf7\u6c42 &#xff1a;<\/p>\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><br \/>\nhttp<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 function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> res<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6162\u8bf7\u6c42\u5b8c\u6210&#xff01;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6a21\u62df\u6162\u8bf7\u6c42<\/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;\u6536\u5230\u4e00\u4e2a\u8bf7\u6c42&#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><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> 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\u8dd1\u5728 http:\/\/localhost:3000&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd0\u884c &#xff1a;<\/p>\n<p>\u6d4f\u89c8\u5668\u5feb\u901f\u8bbf\u95ee http:\/\/localhost:3000 \u591a\u6b21\u3002<\/p>\n<p>\u63a7\u5236\u53f0\u8f93\u51fa &#xff1a;<\/p>\n<p>\u6536\u5230\u4e00\u4e2a\u8bf7\u6c42<br \/>\n\u6536\u5230\u4e00\u4e2a\u8bf7\u6c42<br \/>\n\u6536\u5230\u4e00\u4e2a\u8bf7\u6c42<br \/>\n\u6536\u5230\u4e00\u4e2a\u8bf7\u6c42<br \/>\n&#xff08;1\u79d2\u540e&#xff09;<br \/>\n\u6162\u8bf7\u6c42\u5b8c\u6210&#xff01;<br \/>\n\u6162\u8bf7\u6c42\u5b8c\u6210&#xff01;<br \/>\n\u6162\u8bf7\u6c42\u5b8c\u6210&#xff01;<br \/>\n\u6162\u8bf7\u6c42\u5b8c\u6210&#xff01;<\/p>\n<p>\u89e3\u91ca &#xff1a;<\/p>\n<ul>\n<li>setTimeout \u6a21\u62df\u6162\u4efb\u52a1&#xff0c;\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u7ee7\u7eed\u63a5\u6536\u65b0\u8bf7\u6c42\u3002<\/li>\n<li>\u4e8b\u4ef6\u5faa\u73af\u5728 1 \u79d2\u540e\u8c03\u5ea6\u6162\u4efb\u52a1&#xff0c;\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<h3>2. \u4e8b\u4ef6\u5faa\u73af&#xff1a;Node.js \u7684\u201c\u4efb\u52a1\u8c03\u5ea6\u5458\u201d<\/h3>\n<h4>2.1 \u4e8b\u4ef6\u5faa\u73af\u662f\u4ec0\u4e48&#xff1f;<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b9a\u4e49 &#xff1a;\u4e8b\u4ef6\u5faa\u73af&#xff08;Event Loop&#xff09;\u662f Node.js \u7684\u6838\u5fc3\u673a\u5236&#xff0c;\u8d1f\u8d23\u8c03\u5ea6\u4efb\u52a1&#xff0c;\u8ba9\u5355\u7ebf\u7a0b\u9ad8\u6548\u5904\u7406\u591a\u4efb\u52a1\u3002<\/p>\n<p>\u5de5\u4f5c\u65b9\u5f0f &#xff1a;<\/p>\n<p>Node.js \u7ef4\u62a4\u4e24\u4e2a\u4efb\u52a1\u961f\u5217&#xff1a;<\/p>\n<ul>\n<li>\u5b8f\u4efb\u52a1\u961f\u5217 &#xff1a;\u6162\u4efb\u52a1&#xff0c;\u5982 setTimeout\u3001\u6587\u4ef6\u8bfb\u5199&#xff08;fs.readFile&#xff09;\u3001\u7f51\u7edc\u8bf7\u6c42\u3002<\/li>\n<li>\u5fae\u4efb\u52a1\u961f\u5217 &#xff1a;\u5feb\u4efb\u52a1&#xff0c;\u5982 Promise \u7684 .then\u3001process.nextTick\u3002<\/li>\n<\/ul>\n<p>\u4e8b\u4ef6\u5faa\u73af\u6b65\u9aa4 &#xff1a;<\/p>\n<li>\u6267\u884c\u6240\u6709\u540c\u6b65\u4ee3\u7801&#xff08;\u6309\u987a\u5e8f\u8dd1\u5b8c&#xff09;\u3002<\/li>\n<li>\u6e05\u7a7a\u5fae\u4efb\u52a1\u961f\u5217&#xff08;\u5feb\u4efb\u52a1\u4f18\u5148&#xff09;\u3002<\/li>\n<li>\u4ece\u5b8f\u4efb\u52a1\u961f\u5217\u53d6\u4e00\u4e2a\u4efb\u52a1\u6267\u884c&#xff0c;\u518d\u6e05\u7a7a\u5fae\u4efb\u52a1\u961f\u5217\u3002<\/li>\n<li>\u5faa\u73af\u5f80\u590d&#xff0c;\u76f4\u5230\u961f\u5217\u4e3a\u7a7a\u3002<\/li>\n<p>\u7279\u70b9 &#xff1a;<\/p>\n<ul>\n<li>\u5fae\u4efb\u52a1\u4f18\u5148\u4e8e\u5b8f\u4efb\u52a1&#xff0c;\u786e\u4fdd\u5feb\u4efb\u52a1\u5148\u5b8c\u6210\u3002<\/li>\n<li>\u5f02\u6b65\u4efb\u52a1\u4e0d\u963b\u585e\u4e3b\u7ebf\u7a0b&#xff0c;\u4e3b\u7ebf\u7a0b\u4e00\u76f4\u5fd9\u788c&#xff0c;\u6548\u7387\u9ad8\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48\u91cd\u8981 &#xff1a;<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u8ba9 Node.js \u5355\u7ebf\u7a0b\u80fd\u6a21\u62df\u591a\u4efb\u52a1\u5e76\u884c&#xff0c;\u5feb\u901f\u54cd\u5e94\u591a\u4e2a\u8bf7\u6c42\u3002<\/p>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u50cf\u5feb\u9910\u5e97\u7684\u6536\u94f6\u5458&#xff0c;\u9762\u524d\u6709\u4e24\u961f\u987e\u5ba2&#xff1a;<\/p>\n<ul>\n<li>\u5fae\u4efb\u52a1\u961f &#xff1a;\u70b9\u5496\u5561\u7684\u987e\u5ba2&#xff08;\u51e0\u79d2\u641e\u5b9a&#xff0c;\u5feb&#xff09;\u3002<\/li>\n<li>\u5b8f\u4efb\u52a1\u961f &#xff1a;\u70b9\u6c49\u5821\u7684\u987e\u5ba2&#xff08;\u8981\u70e4\u9762\u5305&#xff0c;\u6162&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u6536\u94f6\u5458\u5148\u5904\u7406\u5b8c\u6240\u6709\u5496\u5561\u8ba2\u5355&#xff08;\u5fae\u4efb\u52a1&#xff09;&#xff0c;\u518d\u505a\u4e00\u4e2a\u6c49\u5821\u5355&#xff08;\u5b8f\u4efb\u52a1&#xff09;&#xff0c;\u6548\u7387\u6700\u9ad8\u3002<\/p>\n<h4>2.2 \u5b8f\u4efb\u52a1 vs \u5fae\u4efb\u52a1<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b8f\u4efb\u52a1 &#xff1a;<\/p>\n<ul>\n<li>\u8017\u65f6\u4efb\u52a1&#xff0c;\u653e\u5165\u201c\u6162\u961f\u5217\u201d\u3002<\/li>\n<li>\u5e38\u89c1\u7c7b\u578b&#xff1a;\n<ul>\n<li>setTimeout\u3001setInterval&#xff1a;\u5b9a\u65f6\u5668&#xff0c;\u5ef6\u8fdf\u6267\u884c\u3002<\/li>\n<li>fs.readFile&#xff1a;\u6587\u4ef6\u8bfb\u5199\u3002<\/li>\n<li>HTTP \u8bf7\u6c42&#xff1a;\u5982\u8bbf\u95ee\u5916\u90e8 API\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7279\u70b9 &#xff1a;\u6267\u884c\u65f6\u95f4\u957f&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u6bcf\u6b21\u53ea\u5904\u7406\u4e00\u4e2a\u5b8f\u4efb\u52a1\u3002<\/p>\n<p>\u5fae\u4efb\u52a1 &#xff1a;<\/p>\n<ul>\n<li>\u5feb\u901f\u4efb\u52a1&#xff0c;\u653e\u5165\u201c\u5feb\u961f\u5217\u201d\u3002<\/li>\n<li>\u5e38\u89c1\u7c7b\u578b&#xff1a;\n<ul>\n<li>Promise \u7684 .then \u6216 .catch\u3002<\/li>\n<li>process.nextTick&#xff1a;Node.js \u7279\u6709&#xff0c;\u4f18\u5148\u7ea7\u9ad8\u4e8e Promise\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7279\u70b9 &#xff1a;\u4f18\u5148\u7ea7\u9ad8&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u5728\u5904\u7406\u5b8f\u4efb\u52a1\u524d\u6e05\u7a7a\u6240\u6709\u5fae\u4efb\u52a1\u3002<\/p>\n<p>\u6267\u884c\u987a\u5e8f &#xff1a;<\/p>\n<li>\u540c\u6b65\u4ee3\u7801\u5148\u8dd1\u5b8c\u3002<\/li>\n<li>\u6e05\u7a7a\u5fae\u4efb\u52a1\u961f\u5217\u3002<\/li>\n<li>\u5904\u7406\u4e00\u4e2a\u5b8f\u4efb\u52a1&#xff0c;\u518d\u6e05\u7a7a\u5fae\u4efb\u52a1\u961f\u5217&#xff0c;\u5faa\u73af\u5f80\u590d\u3002<\/li>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>\u5b8f\u4efb\u52a1\u50cf\u70b9\u6c49\u5821&#xff0c;\u6536\u94f6\u5458\u5f97\u7b49\u540e\u53a8\u70e4\u597d\u9762\u5305&#xff08;\u6162&#xff09;\u3002<\/p>\n<p>\u5fae\u4efb\u52a1\u50cf\u70b9\u5496\u5561&#xff0c;\u6536\u94f6\u5458\u76f4\u63a5\u4ece\u673a\u5668\u62ff&#xff08;\u5feb&#xff09;\u3002<\/p>\n<p>\u6536\u94f6\u5458\u5148\u628a\u5496\u5561\u5355\u5168\u5904\u7406\u5b8c&#xff0c;\u518d\u53bb\u505a\u4e00\u4e2a\u6c49\u5821\u5355\u3002<\/p>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Start&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Macro task&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5b8f\u4efb\u52a1<\/span><br \/>\nPromise<span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Micro task&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5fae\u4efb\u52a1<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;End&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;Start \u2192 End \u2192 Micro task \u2192 Macro task<\/p>\n<p>\u89e3\u91ca &#xff1a;<\/p>\n<ul>\n<li>\u540c\u6b65\u4ee3\u7801&#xff1a;console.log(&#039;Start&#039;) \u548c console.log(&#039;End&#039;) \u6309\u987a\u5e8f\u6267\u884c\u3002<\/li>\n<li>\u5fae\u4efb\u52a1&#xff1a;Promise \u7684 .then \u8fdb\u5165\u5fae\u4efb\u52a1\u961f\u5217&#xff0c;\u4f18\u5148\u8f93\u51fa Micro task\u3002<\/li>\n<li>\u5b8f\u4efb\u52a1&#xff1a;setTimeout \u8fdb\u5165\u5b8f\u4efb\u52a1\u961f\u5217&#xff0c;\u6700\u540e\u8f93\u51fa Macro task\u3002<\/li>\n<\/ul>\n<p>\u573a\u666f &#xff1a;<\/p>\n<p>\u5047\u8bbe setTimeout \u662f\u8bfb\u6587\u4ef6&#xff08;\u6162&#xff09;&#xff0c;Promise \u662f\u5feb\u901f\u8ba1\u7b97&#xff08;\u5feb&#xff09;\u3002<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u4f18\u5148\u5904\u7406\u5feb\u4efb\u52a1&#xff0c;\u786e\u4fdd\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<p>\u66f4\u590d\u6742\u793a\u4f8b &#xff1a;<\/p>\n<p>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4efb\u52a11&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">setTimeout<\/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;\u5b8f\u4efb\u52a1&#xff1a;\u6162\u8bf7\u6c42&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  Promise<span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5fae\u4efb\u52a1&#xff1a;\u5feb\u56de\u8c03&#039;<\/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 number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4efb\u52a12&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u4efb\u52a11 \u2192 \u4efb\u52a12 \u2192 \u5b8f\u4efb\u52a1&#xff1a;\u6162\u8bf7\u6c42 \u2192 \u5fae\u4efb\u52a1&#xff1a;\u5feb\u56de\u8c03<\/p>\n<p>\u89e3\u91ca &#xff1a;<\/p>\n<ul>\n<li>\u540c\u6b65\u4ee3\u7801&#xff1a;\u4efb\u52a11\u3001\u4efb\u52a12 \u5148\u8dd1\u3002<\/li>\n<li>\u5b8f\u4efb\u52a1&#xff1a;setTimeout \u89e6\u53d1\u201c\u6162\u8bf7\u6c42\u201d\u3002<\/li>\n<li>\u5fae\u4efb\u52a1&#xff1a;\u5b8f\u4efb\u52a1\u5185\u7684 Promise \u89e6\u53d1\u201c\u5feb\u56de\u8c03\u201d&#xff0c;\u4f18\u5148\u4e8e\u4e0b\u4e00\u4e2a\u5b8f\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<h4>2.3 \u4e8b\u4ef6\u5faa\u73af\u7684\u9ad8\u6548\u6027<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u9ad8\u6548\u539f\u56e0 &#xff1a;<\/p>\n<ul>\n<li>\u5f02\u6b65\u4efb\u52a1\u4e0d\u963b\u585e\u4e3b\u7ebf\u7a0b&#xff0c;\u4e3b\u7ebf\u7a0b\u53ef\u7ee7\u7eed\u5904\u7406\u65b0\u8bf7\u6c42\u3002<\/li>\n<li>\u5fae\u4efb\u52a1\u4f18\u5148&#xff0c;\u786e\u4fdd\u5feb\u901f\u54cd\u5e94\u7528\u6237\u3002<\/li>\n<li>\u5b8f\u4efb\u52a1\u5206\u6279\u5904\u7406&#xff0c;\u9632\u6b62\u4e3b\u7ebf\u7a0b\u5361\u5728\u6162\u4efb\u52a1\u4e0a\u3002<\/li>\n<\/ul>\n<p>\u9002\u7528\u573a\u666f &#xff1a;<\/p>\n<ul>\n<li>\u9ad8\u5e76\u53d1 &#xff1a;\u50cf\u540c\u65f6\u5904\u7406 100 \u4e2a\u7528\u6237\u8bf7\u6c42&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u5feb\u901f\u8c03\u5ea6\u3002<\/li>\n<li>\u5b9e\u65f6\u5e94\u7528 &#xff1a;\u5982\u804a\u5929\u5ba4&#xff0c;\u7528\u6237\u53d1\u9001\u6d88\u606f\u540e\u7acb\u5373\u6536\u5230\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>\u6536\u94f6\u5458&#xff08;\u4e3b\u7ebf\u7a0b&#xff09;\u628a\u6162\u5355&#xff08;\u5b8f\u4efb\u52a1&#xff09;\u6254\u7ed9\u540e\u53a8&#xff0c;\u81ea\u5df1\u7ee7\u7eed\u62db\u547c\u65b0\u987e\u5ba2\u3002\u4e8b\u4ef6\u5faa\u73af\u50cf\u5979\u7684\u8bb0\u4e8b\u672c&#xff0c;\u63d0\u9192\u5979\u54ea\u4e9b\u5355\u505a\u597d\u4e86&#xff0c;\u4f18\u5148\u5904\u7406\u5496\u5561\u5355&#xff08;\u5fae\u4efb\u52a1&#xff09;\u3002<\/p>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u6a21\u62df\u9ad8\u5e76\u53d1 &#xff1a;<\/p>\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><br \/>\nhttp<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  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6536\u5230\u8bf7\u6c42&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span>url<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  Promise<span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5fae\u4efb\u52a1&#xff1a;\u5feb\u901f\u5904\u7406&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/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;\u5b8f\u4efb\u52a1&#xff1a;\u6162\u5904\u7406&#039;<\/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;\u8bf7\u6c42\u5b8c\u6210&#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 number\">1000<\/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><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><\/p>\n<p>\u8fd0\u884c &#xff1a;<\/p>\n<p>\u6d4f\u89c8\u5668\u5feb\u901f\u8bbf\u95ee http:\/\/localhost:3000 \u591a\u6b21\u3002<\/p>\n<p>\u63a7\u5236\u53f0\u8f93\u51fa &#xff1a;<\/p>\n<p>\u6536\u5230\u8bf7\u6c42&#xff1a;\/favicon.ico<br \/>\n\u5fae\u4efb\u52a1&#xff1a;\u5feb\u901f\u5904\u7406<br \/>\n\u6536\u5230\u8bf7\u6c42&#xff1a;\/<br \/>\n\u5fae\u4efb\u52a1&#xff1a;\u5feb\u901f\u5904\u7406<br \/>\n\u6536\u5230\u8bf7\u6c42&#xff1a;\/<br \/>\n\u5fae\u4efb\u52a1&#xff1a;\u5feb\u901f\u5904\u7406<br \/>\n\u6536\u5230\u8bf7\u6c42&#xff1a;\/<br \/>\n\u5fae\u4efb\u52a1&#xff1a;\u5feb\u901f\u5904\u7406<br \/>\n&#xff08;1\u79d2\u540e&#xff09;<br \/>\n\u5b8f\u4efb\u52a1&#xff1a;\u6162\u5904\u7406<br \/>\n\u5b8f\u4efb\u52a1&#xff1a;\u6162\u5904\u7406<br \/>\n\u5b8f\u4efb\u52a1&#xff1a;\u6162\u5904\u7406<br \/>\n\u5b8f\u4efb\u52a1&#xff1a;\u6162\u5904\u7406<\/p>\n<p>\u89e3\u91ca &#xff1a;\u4e3b\u7ebf\u7a0b\u5feb\u901f\u5904\u7406\u65b0\u8bf7\u6c42&#xff0c;\u5fae\u4efb\u52a1\u4f18\u5148&#xff0c;\u5b8f\u4efb\u52a1\u5ef6\u540e\u3002<\/p>\n<h3>3. Nginx&#xff1a;\u7f51\u7edc\u8bf7\u6c42\u7684\u201c\u8d85\u7ea7\u95e8\u536b\u201d<\/h3>\n<h4>3.1 \u4ec0\u4e48\u662f Nginx&#xff1f;<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b9a\u4e49 &#xff1a;Nginx \u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684 Web \u670d\u52a1\u5668\u548c\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668&#xff0c;\u4e13\u95e8\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff08;\u5982\u6d4f\u89c8\u5668\u8bbf\u95ee&#xff09;\u3002<\/p>\n<p>\u53cd\u5411\u4ee3\u7406 &#xff1a;<\/p>\n<ul>\n<li>\u5ba2\u6237\u7aef\u8bbf\u95ee Nginx&#xff08;\u901a\u5e38 80 \u6216 443 \u7aef\u53e3&#xff09;&#xff0c;Nginx \u628a\u8bf7\u6c42\u8f6c\u53d1\u5230\u540e\u7aef\u670d\u52a1\u5668&#xff08;\u5982 Node.js \u7684 3000 \u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u4e0d\u77e5\u9053\u540e\u7aef\u670d\u52a1\u5668\u7684\u5b58\u5728&#xff0c;\u53ea\u8ddf Nginx \u6253\u4ea4\u9053\u3002<\/li>\n<\/ul>\n<p>\u4f5c\u7528 &#xff1a;<\/p>\n<ul>\n<li>\u8f6c\u53d1\u8bf7\u6c42 &#xff1a;\u628a\u5916\u754c\u8bbf\u95ee\u7684 80 \u7aef\u53e3\u8bf7\u6c42&#xff0c;\u8f6c\u5230 Node.js \u7684\u975e\u6807\u51c6\u7aef\u53e3&#xff08;\u5982 3000&#xff09;\u3002<\/li>\n<li>\u5904\u7406\u9759\u6001\u6587\u4ef6 &#xff1a;\u56fe\u7247\u3001CSS\u3001HTML \u7b49\u6587\u4ef6\u7531 Nginx \u76f4\u63a5\u8fd4\u56de&#xff0c;\u4e0d\u9ebb\u70e6 Node.js\u3002<\/li>\n<li>\u8d1f\u8f7d\u5747\u8861 &#xff1a;\u591a\u4e2a Node.js \u670d\u52a1\u5668\u65f6&#xff0c;Nginx \u5206\u914d\u8bf7\u6c42&#xff0c;\u9632\u6b62\u67d0\u53f0\u8fc7\u8f7d\u3002<\/li>\n<li>\u5176\u4ed6\u529f\u80fd &#xff1a;\u652f\u6301 HTTPS \u52a0\u5bc6\u3001\u6570\u636e\u538b\u7f29\u3001\u7f13\u5b58&#xff0c;\u63d0\u5347\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48\u7528 Nginx &#xff1f;<\/p>\n<ul>\n<li>Node.js \u5355\u7ebf\u7a0b\u4e0d\u64c5\u957f\u5904\u7406\u9759\u6001\u6587\u4ef6\u6216\u8d85\u9ad8\u5e76\u53d1&#xff0c;Nginx \u591a\u7ebf\u7a0b\u66f4\u9ad8\u6548\u3002<\/li>\n<li>Nginx \u80fd\u540c\u65f6\u5904\u7406\u6570\u5343\u4e2a\u8bf7\u6c42&#xff0c;\u51cf\u8f7b Node.js \u538b\u529b\u3002<\/li>\n<\/ul>\n<p>\u7aef\u53e3\u914d\u7f6e &#xff1a;<\/p>\n<ul>\n<li>Nginx \u9ed8\u8ba4\u76d1\u542c 80&#xff08;HTTP&#xff09;\u6216 443&#xff08;HTTPS&#xff09;\u7aef\u53e3\u3002<\/li>\n<li>\u9700\u64cd\u4f5c\u7cfb\u7edf\u9632\u706b\u5899\u548c\u4e91\u670d\u52a1\u5668\u5b89\u5168\u7ec4&#xff08;\u82e5\u5916\u7f51\u90e8\u7f72&#xff09;\u5f00\u653e\u5bf9\u5e94\u7aef\u53e3\u3002<\/li>\n<li>80 \u7aef\u53e3\u662f\u77e5\u540d\u7aef\u53e3&#xff0c;\u9700\u7ba1\u7406\u5458\u6743\u9650&#xff08;Linux&#xff1a;sudo&#xff0c;Windows&#xff1a;\u7ba1\u7406\u5458\u8eab\u4efd&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>Nginx \u50cf\u996d\u5e97\u7684\u95e8\u536b\u548c\u670d\u52a1\u5458&#xff1a;<\/p>\n<ul>\n<li>\u5ba2\u6237&#xff08;\u6d4f\u89c8\u5668&#xff09;\u6765\u996d\u5e97&#xff08;80 \u7aef\u53e3&#xff09;&#xff0c;\u95e8\u536b\u628a\u8ba2\u5355\u8f6c\u7ed9\u540e\u53a8&#xff08;Node.js \u7684 3000 \u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u5982\u679c\u5ba2\u6237\u8981\u74f6\u88c5\u6c34&#xff08;\u9759\u6001\u6587\u4ef6&#xff09;&#xff0c;\u95e8\u536b\u76f4\u63a5\u4ece\u67dc\u53f0\u62ff&#xff0c;\u4e0d\u7528\u95ee\u540e\u53a8\u3002<\/li>\n<\/ul>\n<h4>3.2 Nginx \u600e\u4e48\u5de5\u4f5c&#xff1f;<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u914d\u7f6e\u6587\u4ef6 &#xff1a;<\/p>\n<ul>\n<li>Nginx \u901a\u8fc7 nginx.conf \u6587\u4ef6&#xff08;\u901a\u5e38\u5728 \/etc\/nginx\/nginx.conf&#xff09;\u8bbe\u7f6e\u89c4\u5219\u3002<\/li>\n<li>\u5173\u952e\u6307\u4ee4&#xff1a;\n<ul>\n<li>listen 80;&#xff1a;\u76d1\u542c 80 \u7aef\u53e3\u3002<\/li>\n<li>server_name&#xff1a;\u6307\u5b9a\u57df\u540d&#xff08;\u5982 example.com&#xff09;\u3002<\/li>\n<li>proxy_pass&#xff1a;\u8f6c\u53d1\u8bf7\u6c42\u5230\u540e\u7aef&#xff08;\u5982 http:\/\/localhost:3000&#xff09;\u3002<\/li>\n<li>root&#xff1a;\u9759\u6001\u6587\u4ef6\u8def\u5f84&#xff08;\u5982 \/var\/www\/static&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5de5\u4f5c\u6d41\u7a0b &#xff1a;<\/p>\n<li>\u5ba2\u6237\u7aef\u8bbf\u95ee http:\/\/example.com &#xff08;\u9ed8\u8ba4 80 \u7aef\u53e3&#xff09;\u3002<\/li>\n<li>Nginx \u6536\u5230\u8bf7\u6c42&#xff0c;\u68c0\u67e5\u7c7b\u578b&#xff1a;\n<ul>\n<li>\u9759\u6001\u6587\u4ef6&#xff08;\u5982 \/images\/cat.jpg&#xff09;&#xff1a;\u4ece\u786c\u76d8\u8fd4\u56de\u3002<\/li>\n<li>\u52a8\u6001\u8bf7\u6c42&#xff08;\u5982 \/data&#xff09;&#xff1a;\u8f6c\u53d1\u5230 Node.js\u3002<\/li>\n<\/ul>\n<\/li>\n<p>Node.js \u5904\u7406\u540e\u8fd4\u56de\u7ed3\u679c&#xff0c;Nginx \u4f20\u7ed9\u5ba2\u6237\u7aef \u3002<\/p>\n<p>\u9632\u706b\u5899\u548c\u5b89\u5168\u7ec4 &#xff1a;<\/p>\n<ul>\n<li>\u672c\u5730\u9632\u706b\u5899 &#xff1a;\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u9700\u5f00\u653e 80 \u7aef\u53e3&#xff08;Linux&#xff1a;ufw allow 80&#xff0c;Windows&#xff1a;\u5141\u8bb8 TCP 80&#xff09;\u3002<\/li>\n<li>\u5b89\u5168\u7ec4&#xff08;\u4e91\u670d\u52a1\u5668&#xff09; &#xff1a;\u4e91\u670d\u52a1\u5546\u63a7\u5236\u53f0\u6dfb\u52a0 TCP 80 \u89c4\u5219&#xff0c;\u6765\u6e90 0.0.0.0\/0\u3002<\/li>\n<li>\u4e24\u5c42\u90fd\u9700\u5f00\u653e&#xff0c;\u8bf7\u6c42\u624d\u80fd\u5230\u8fbe Nginx\u3002<\/li>\n<\/ul>\n<p>\u7279\u70b9 &#xff1a;<\/p>\n<ul>\n<li>Nginx \u591a\u7ebf\u7a0b&#xff0c;\u80fd\u5904\u7406\u9ad8\u5e76\u53d1\u3002<\/li>\n<li>\u9759\u6001\u6587\u4ef6\u5904\u7406\u5feb&#xff0c;Node.js \u4e13\u6ce8\u52a8\u6001\u903b\u8f91&#xff08;\u5982\u6570\u636e\u5e93\u67e5\u8be2&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>Nginx \u662f\u996d\u5e97\u524d\u53f0&#xff0c;\u5ba2\u6237\u70b9\u5355&#xff08;\u8bf7\u6c42&#xff09;&#xff0c;\u524d\u53f0\u5224\u65ad\u662f\u62ff\u996e\u6599&#xff08;\u9759\u6001\u6587\u4ef6&#xff09;\u8fd8\u662f\u8f6c\u7ed9\u540e\u53a8&#xff08;Node.js&#xff09;\u3002\u524d\u53f0\u6548\u7387\u9ad8&#xff0c;\u80fd\u540c\u65f6\u63a5\u5f85\u5f88\u591a\u5ba2\u6237\u3002<\/p>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>Nginx \u914d\u7f6e &#xff1a;<\/p>\n<p>server {<br \/>\n    listen 80;<br \/>\n    server_name example.com;<br \/>\n    location \/ {<br \/>\n        proxy_pass http:\/\/localhost:3000; \/\/ \u8f6c\u53d1\u5230 Node.js<br \/>\n    }<br \/>\n    location \/images\/ {<br \/>\n        root \/var\/www\/static; \/\/ \u9759\u6001\u6587\u4ef6\u8def\u5f84<br \/>\n    }<br \/>\n}<\/p>\n<p>Node.js \u4ee3\u7801 &#xff1a;<\/p>\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><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/data&#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> res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u52a8\u6001\u6570\u636e&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<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> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Node.js \u8dd1\u5728 3000 \u7aef\u53e3&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd0\u884c &#xff1a;<\/p>\n<ul>\n<li>\u7528\u6237\u8bbf\u95ee http:\/\/example.com\/data &#xff0c;Nginx \u8f6c\u53d1\u5230 localhost:3000\/data&#xff0c;Node.js \u8fd4\u56de\u201c\u52a8\u6001\u6570\u636e\u201d\u3002<\/li>\n<li>\u7528\u6237\u8bbf\u95ee http:\/\/example.com\/images\/cat.jpg &#xff0c;Nginx \u76f4\u63a5\u8fd4\u56de \/var\/www\/static\/images\/cat.jpg\u3002<\/li>\n<\/ul>\n<p>\u914d\u7f6e\u9632\u706b\u5899 &#xff1a;<\/p>\n<ul>\n<li>Linux&#xff1a;sudo ufw allow 80&#xff08;Nginx&#xff09;&#xff0c;sudo ufw allow 3000&#xff08;Node.js&#xff09;\u3002<\/li>\n<li>Windows&#xff1a;\u9632\u706b\u5899\u5141\u8bb8 TCP 80 \u548c 3000\u3002<\/li>\n<\/ul>\n<p>\u4e91\u670d\u52a1\u5668\u5b89\u5168\u7ec4 (\u963f\u91cc\u4e91) &#xff1a;<\/p>\n<ul>\n<li>\u6dfb\u52a0\u89c4\u5219&#xff1a;TCP 80&#xff0c;\u6765\u6e90 0.0.0.0\/0\u3002<\/li>\n<\/ul>\n<p>\u6d4b\u8bd5 &#xff1a;<\/p>\n<ul>\n<li>telnet localhost 80&#xff1a;\u786e\u8ba4 Nginx \u7aef\u53e3\u5f00\u653e\u3002<\/li>\n<li>curl [http:\/\/example.com\/data](http:\/\/example.com\/data) &#xff1a;\u8fd4\u56de\u201c\u52a8\u6001\u6570\u636e\u201d\u3002<\/li>\n<\/ul>\n<h3>4. \u540c\u6b65 vs \u5f02\u6b65&#xff1a;\u6392\u961f\u4e70\u7968 vs \u70b9\u5916\u5356<\/h3>\n<h4>4.1 \u540c\u6b65\u4e0e\u5f02\u6b65\u7684\u533a\u522b<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u540c\u6b65 &#xff1a;<\/p>\n<ul>\n<li>\u4efb\u52a1\u6309\u987a\u5e8f\u6267\u884c&#xff0c;\u524d\u4e00\u4e2a\u4efb\u52a1\u6ca1\u5b8c\u6210&#xff0c;\u540e\u4e00\u4e2a\u5fc5\u987b\u7b49\u7740\u3002<\/li>\n<li>\u50cf\u6392\u961f\u4e70\u7968&#xff0c;\u4e00\u4e2a\u4eba\u4e70\u5b8c\u4e0b\u4e00\u4e2a\u624d\u80fd\u4e70&#xff0c;\u6548\u7387\u4f4e\u3002<\/li>\n<\/ul>\n<p>\u5f02\u6b65 &#xff1a;<\/p>\n<ul>\n<li>\u4efb\u52a1\u53ef\u4ee5\u201c\u540c\u65f6\u201d\u5f00\u59cb&#xff0c;\u6162\u4efb\u52a1\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u7ee7\u7eed\u5e72\u522b\u7684\u3002<\/li>\n<li>\u50cf\u70b9\u5916\u5356&#xff0c;\u4f60\u4e0b\u5355\u540e\u4e0d\u7528\u7b49\u7740&#xff0c;\u53a8\u5e08\u505a\u597d\u518d\u9001\u6765\u3002<\/li>\n<\/ul>\n<p>Node.js \u7684\u5f02\u6b65 &#xff1a;<\/p>\n<ul>\n<li>\u6162\u4efb\u52a1&#xff08;\u50cf\u8bfb\u6587\u4ef6\u3001\u8bbf\u95ee\u7f51\u7edc&#xff09;\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u4e0d\u963b\u585e\u3002<\/li>\n<li>\u5e38\u89c1\u5f02\u6b65\u65b9\u5f0f&#xff1a;\n<ul>\n<li>\u56de\u8c03 &#xff1a;\u4efb\u52a1\u5b8c\u6210\u540e\u8c03\u7528\u51fd\u6570\u3002<\/li>\n<li>Promise &#xff1a;\u5c01\u88c5\u5f02\u6b65\u4efb\u52a1&#xff0c;\u660e\u786e\u6210\u529f\/\u5931\u8d25\u72b6\u6001\u3002<\/li>\n<li>async\/await &#xff1a;\u8ba9\u5f02\u6b65\u4ee3\u7801\u50cf\u540c\u6b65\u4e00\u6837\u5199&#xff0c;\u7b80\u6d01\u6613\u8bfb\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u4e3a\u4ec0\u4e48\u5f02\u6b65\u91cd\u8981 &#xff1a;<\/p>\n<p>\u670d\u52a1\u5668\u9700\u5904\u7406\u591a\u4e2a\u8bf7\u6c42&#xff08;\u50cf 100 \u4e2a\u7528\u6237\u8bbf\u95ee&#xff09;\u3002<\/p>\n<p>\u540c\u6b65\u4f1a\u8ba9\u6162\u8bf7\u6c42\u963b\u585e\u5176\u4ed6\u7528\u6237&#xff0c;\u5f02\u6b65\u8ba9 Node.js \u5feb\u901f\u54cd\u5e94\u3002<\/p>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>\u540c\u6b65&#xff1a;\u4f60\u5728\u996d\u5e97\u70b9\u9910&#xff0c;\u53a8\u5e08\u505a\u5b8c\u4f60\u7684\u83dc\u518d\u505a\u4e0b\u4e00\u4e2a&#xff0c;\u6162\u5f97\u8981\u547d\u3002<\/p>\n<p>\u5f02\u6b65&#xff1a;\u4f60\u70b9\u9910\u540e&#xff0c;\u53a8\u5e08\u540c\u65f6\u505a\u591a\u4eba\u7684\u83dc&#xff0c;\u505a\u597d\u54ea\u4e2a\u9001\u54ea\u4e2a&#xff0c;\u6548\u7387\u9ad8\u3002<\/p>\n<h4>4.2 Node.js \u7684\u5f02\u6b65\u673a\u5236<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u56de\u8c03 &#xff1a;<\/p>\n<ul>\n<li>\u6700\u65e9\u7684\u5f02\u6b65\u65b9\u5f0f&#xff0c;\u4efb\u52a1\u5b8c\u6210\u540e\u8c03\u7528\u6307\u5b9a\u51fd\u6570\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u591a\u5c42\u56de\u8c03\u5bfc\u81f4\u201c\u56de\u8c03\u5730\u72f1\u201d&#xff0c;\u4ee3\u7801\u96be\u8bfb\u3002<\/li>\n<\/ul>\n<p>Promise &#xff1a;<\/p>\n<ul>\n<li>\u73b0\u4ee3\u65b9\u5f0f&#xff0c;\u5c01\u88c5\u5f02\u6b65\u4efb\u52a1&#xff0c;\u6709\u6210\u529f&#xff08;resolve&#xff09;\u548c\u5931\u8d25&#xff08;reject&#xff09;\u72b6\u6001\u3002<\/li>\n<li>\u7528 .then \u6216 .catch \u5904\u7406\u7ed3\u679c&#xff0c;\u4ee3\u7801\u6e05\u6670\u3002<\/li>\n<\/ul>\n<p>async\/await &#xff1a;<\/p>\n<ul>\n<li>\u57fa\u4e8e Promise&#xff0c;\u8ba9\u5f02\u6b65\u4ee3\u7801\u50cf\u540c\u6b65\u5199\u3002<\/li>\n<li>await \u6682\u505c\u4efb\u52a1&#xff0c;\u7b49\u5f02\u6b65\u7ed3\u679c&#xff0c;\u4e3b\u7ebf\u7a0b\u8dd1\u5176\u4ed6\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<p>\u4e8b\u4ef6\u5faa\u73af\u7684\u89d2\u8272 &#xff1a;<\/p>\n<p>\u5f02\u6b65\u4efb\u52a1\u7684\u7ed3\u679c&#xff08;\u56de\u8c03\u3001Promise&#xff09;\u8fdb\u5165\u4efb\u52a1\u961f\u5217&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u51b3\u5b9a\u4f55\u65f6\u6267\u884c\u3002<\/p>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<ul>\n<li>\u56de\u8c03 &#xff1a;\u4f60\u70b9\u5916\u5356&#xff0c;\u544a\u8bc9\u5e97\u5bb6\u201c\u505a\u597d\u540e\u6253\u6211\u7535\u8bdd\u201d\u3002<\/li>\n<li>Promise &#xff1a;\u4f60\u70b9\u5916\u5356&#xff0c;\u5e97\u5bb6\u7ed9\u4f60\u8ba2\u5355\u53f7&#xff0c;\u627f\u8bfa\u505a\u597d\u540e\u901a\u77e5\u3002<\/li>\n<li>async\/await &#xff1a;\u4f60\u70b9\u5916\u5356&#xff0c;\u5e97\u5458\u8bf4\u201c\u5728\u8fd9\u7b49\u7740&#xff0c;\u6211\u505a\u597d\u7ed9\u4f60\u201d&#xff0c;\u4f60\u4e0d\u7528\u7ba1\u7ec6\u8282\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u56de\u8c03 &#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> fs <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;fs&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nfs<span class=\"token punctuation\">.<\/span><span class=\"token function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;file.txt&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">err<span class=\"token punctuation\">,<\/span> data<\/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;\u6587\u4ef6\u5185\u5bb9&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> data<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 \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1 \u2192 &#xff08;\u8bfb\u6587\u4ef6\u540e&#xff09;\u6587\u4ef6\u5185\u5bb9&#xff1a;\u2026<\/p>\n<p>\u89e3\u91ca &#xff1a;readFile \u662f\u5f02\u6b65\u4efb\u52a1&#xff0c;\u4ea4\u7ed9\u540e\u53f0&#xff0c;\u4e3b\u7ebf\u7a0b\u7ee7\u7eed\u8dd1\u3002<\/p>\n<p>Promise &#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> <span class=\"token function-variable function\">readFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">resolve<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">setTimeout<\/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 function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6587\u4ef6\u6570\u636e&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/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 function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">data<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6587\u4ef6\u5185\u5bb9&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1 \u2192 &#xff08;1\u79d2\u540e&#xff09;\u6587\u4ef6\u5185\u5bb9&#xff1a;\u6587\u4ef6\u6570\u636e<\/p>\n<p>async\/await &#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">resolve<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">setTimeout<\/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 function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6587\u4ef6\u6570\u636e&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/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;\u6587\u4ef6\u5185\u5bb9&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u7ee7\u7eed\u5176\u4ed6\u4efb\u52a1 \u2192 &#xff08;1\u79d2\u540e&#xff09;\u6587\u4ef6\u5185\u5bb9&#xff1a;\u6587\u4ef6\u6570\u636e<\/p>\n<h3>5. \u7ebf\u7a0b vs \u534f\u7a0b&#xff1a;CPU \u7684\u5de5\u4eba\u4e0e\u8f7b\u91cf\u52a9\u624b<\/h3>\n<h4>5.1 \u7ebf\u7a0b<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b9a\u4e49 &#xff1a;\u7ebf\u7a0b\u662f CPU \u6267\u884c\u4efb\u52a1\u7684\u6700\u5c0f\u5355\u4f4d&#xff0c;\u50cf\u4e00\u4e2a\u5de5\u4eba\u72ec\u7acb\u5e72\u6d3b\u3002<\/p>\n<p>CPU \u65f6\u95f4\u7247 &#xff1a;<\/p>\n<ul>\n<li>CPU \u7ed9\u6bcf\u4e2a\u7ebf\u7a0b\u5206\u914d\u77ed\u6682\u65f6\u95f4&#xff08;\u51e0\u6beb\u79d2&#xff09;&#xff0c;\u5feb\u901f\u5207\u6362&#xff0c;\u6a21\u62df\u5e76\u884c\u3002<\/li>\n<li>\u6bd4\u5982 3 \u4e2a\u7ebf\u7a0b&#xff0c;CPU \u6bcf\u79d2\u5207\u6362\u51e0\u767e\u6b21&#xff0c;\u770b\u8d77\u6765\u50cf\u540c\u65f6\u8dd1\u3002<\/li>\n<\/ul>\n<p>Node.js \u7684\u7ebf\u7a0b &#xff1a;<\/p>\n<ul>\n<li>\u4e3b\u7ebf\u7a0b &#xff1a;\u6267\u884c JavaScript \u4ee3\u7801&#xff0c;\u5904\u7406\u4e8b\u4ef6\u5faa\u73af\u3002<\/li>\n<li>\u540e\u53f0\u7ebf\u7a0b\u6c60 &#xff1a;Node.js \u5185\u90e8\u7528 libuv \u63d0\u4f9b\u7684\u7ebf\u7a0b\u6c60\u5904\u7406\u6162\u4efb\u52a1&#xff08;\u50cf\u6587\u4ef6\u8bfb\u5199\u3001\u7f51\u7edc\u8bf7\u6c42&#xff09;&#xff0c;\u5bf9\u7a0b\u5e8f\u5458\u900f\u660e\u3002<\/li>\n<\/ul>\n<p>\u7f3a\u70b9 &#xff1a;<\/p>\n<ul>\n<li>\u7ebf\u7a0b\u5207\u6362\u6709\u5f00\u9500&#xff08;\u50cf\u5de5\u4eba\u6362\u5de5\u5177&#xff09;&#xff0c;\u5360\u5185\u5b58\u591a\u3002<\/li>\n<li>\u591a\u7ebf\u7a0b\u7f16\u7a0b\u590d\u6742&#xff0c;\u9700\u5904\u7406\u8d44\u6e90\u7ade\u4e89&#xff08;\u50cf\u591a\u4e2a\u5de5\u4eba\u62a2\u4e00\u4e2a\u9505&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<p>\u7ebf\u7a0b\u50cf\u996d\u5e97\u7684\u591a\u4e2a\u53a8\u5e08&#xff0c;\u6bcf\u4eba\u4e00\u4e2a\u7076\u53f0&#xff0c;CPU \u662f\u8001\u677f&#xff0c;\u6bcf\u4eba\u7ed9\u51e0\u79d2\u949f\u5e72\u6d3b&#xff0c;\u5feb\u901f\u8f6e\u6362\u3002<\/p>\n<h4>5.2 \u534f\u7a0b<\/h4>\n<p>\u77e5\u8bc6\u70b9 &#xff1a;<\/p>\n<p>\u5b9a\u4e49 &#xff1a;\u534f\u7a0b&#xff08;Coroutine&#xff09;\u662f\u6bd4\u7ebf\u7a0b\u66f4\u8f7b\u91cf\u7684\u4efb\u52a1\u5355\u4f4d&#xff0c;\u50cf\u53a8\u5e08\u7684\u52a9\u624b&#xff0c;\u53ea\u8d1f\u8d23\u90e8\u5206\u5de5\u4f5c&#xff08;\u6bd4\u5982\u5207\u83dc&#xff09;\u3002<\/p>\n<p>\u7279\u70b9 &#xff1a;<\/p>\n<ul>\n<li>\u8fd0\u884c\u5728\u540c\u4e00\u7ebf\u7a0b\u5185&#xff0c;\u5207\u6362\u7531\u7a0b\u5e8f\u63a7\u5236&#xff0c;\u4e0d\u7528 CPU \u8c03\u5ea6\u3002<\/li>\n<li>\u5207\u6362\u5f00\u9500\u5c0f&#xff0c;\u5185\u5b58\u5360\u7528\u5c11&#xff0c;\u9002\u5408\u9ad8\u5e76\u53d1\u3002<\/li>\n<\/ul>\n<p>Node.js \u7684\u534f\u7a0b &#xff1a;<\/p>\n<ul>\n<li>Node.js \u6ca1\u6709\u771f\u6b63\u534f\u7a0b&#xff0c;\u4f46\u7528 async\/await \u6a21\u62df\u534f\u7a0b\u6548\u679c\u3002<\/li>\n<li>await \u6682\u505c\u4efb\u52a1&#xff0c;\u4e3b\u7ebf\u7a0b\u8dd1\u5176\u4ed6\u4efb\u52a1&#xff0c;\u4efb\u52a1\u5b8c\u6210\u540e\u518d\u6062\u590d\u3002<\/li>\n<\/ul>\n<p>\u4f18\u70b9 &#xff1a;<\/p>\n<ul>\n<li>\u9ad8\u6548 &#xff1a;\u5207\u6362\u5feb&#xff0c;\u7701\u8d44\u6e90\u3002<\/li>\n<li>\u7b80\u5355 &#xff1a;\u4ee3\u7801\u50cf\u540c\u6b65\u5199\u6cd5&#xff0c;\u6613\u8bfb\u3002<\/li>\n<\/ul>\n<p>\u6bd4\u55bb &#xff1a;<\/p>\n<ul>\n<li>\u7ebf\u7a0b &#xff1a;\u591a\u4e2a\u53a8\u5e08&#xff0c;\u5404\u81ea\u6709\u7076\u53f0&#xff0c;\u5207\u6362\u65f6\u6536\u62fe\u5de5\u5177&#xff0c;\u8d39\u65f6\u95f4\u3002<\/li>\n<li>\u534f\u7a0b &#xff1a;\u4e00\u4e2a\u53a8\u5e08\u5e26\u591a\u4e2a\u52a9\u624b&#xff0c;\u5207\u83dc\u3001\u7092\u83dc\u5feb\u901f\u5207\u6362&#xff0c;\u7701\u529b\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b &#xff1a;<\/p>\n<p>\u7ebf\u7a0b&#xff08;\u4f2a\u4ee3\u7801&#xff0c;\u5047\u8bbe\u591a\u7ebf\u7a0b&#xff09; &#xff1a;<\/p>\n<p>thread1<span class=\"token operator\">:<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4efb\u52a11&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nthread2<span class=\"token operator\">:<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4efb\u52a12&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u53ef\u80fd\u4e71\u5e8f&#xff0c;\u5982 \u4efb\u52a11\u3001\u4efb\u52a12 \u540c\u65f6\u51fa\u73b0\u3002<\/p>\n<p>\u534f\u7a0b&#xff08;Node.js \u7684 async\/await&#xff09; &#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">task1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">resolve<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span>resolve<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/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;\u4efb\u52a11&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">task2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/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;\u4efb\u52a12&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token function\">task1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">task2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa &#xff1a;\u4efb\u52a12 \u2192 &#xff08;1\u79d2\u540e&#xff09;\u4efb\u52a11<\/p>\n<p>\u89e3\u91ca &#xff1a;await \u6682\u505c\u4efb\u52a11&#xff0c;\u4e3b\u7ebf\u7a0b\u8dd1\u4efb\u52a12&#xff0c;\u50cf\u534f\u7a0b\u5207\u6362\u3002<\/p>\n<h3>6. \u7efc\u5408\u4f8b\u5b50&#xff1a;Node.js \u670d\u52a1\u5668\u7684\u8fd0\u884c<\/h3>\n<p>\u573a\u666f &#xff1a;<\/p>\n<p>\u4f60\u5728\u963f\u91cc\u4e91 ECS&#xff08;\u516c\u7f51 IP&#xff1a;203.0.113.1&#xff09;\u90e8\u7f72\u4e00\u4e2a Node.js \u670d\u52a1\u5668&#xff0c;\u76d1\u542c 3000 \u7aef\u53e3&#xff0c;\u5904\u7406\u52a8\u6001\u8bf7\u6c42\u3002Nginx \u76d1\u542c 80 \u7aef\u53e3&#xff0c;\u8f6c\u53d1\u8bf7\u6c42\u5230 Node.js&#xff0c;\u5e76\u5904\u7406\u9759\u6001\u6587\u4ef6\u3002<\/p>\n<p>Node.js \u4ee3\u7801 (server.js) &#xff1a;<\/p>\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;\/data&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">async<\/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  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5f00\u59cb\u5904\u7406\u8bf7\u6c42&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">resolve<\/span> <span class=\"token operator\">&#061;&gt;<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/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 function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5f02\u6b65\u6570\u636e&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">)<\/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;\u8bf7\u6c42\u5904\u7406\u5b8c\u6210&#039;<\/span><span class=\"token punctuation\">)<\/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>data<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> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Node.js \u8dd1\u5728 http:\/\/localhost:3000&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>Nginx \u914d\u7f6e (\/etc\/nginx\/nginx.conf) &#xff1a;<\/p>\n<p>server {<br \/>\n    listen 80;<br \/>\n    server_name example.com;<br \/>\n    location \/ {<br \/>\n        proxy_pass http:\/\/localhost:3000;<br \/>\n    }<br \/>\n    location \/images\/ {<br \/>\n        root \/var\/www\/static;<br \/>\n    }<br \/>\n}<\/p>\n<p>\u914d\u7f6e\u6b65\u9aa4 &#xff1a;<\/p>\n<p>Node.js &#xff1a;<\/p>\n<li>\u4fdd\u5b58 server.js&#xff0c;\u8fd0\u884c node server.js\u3002<\/li>\n<li>\u76d1\u542c 3000 \u7aef\u53e3&#xff0c;\u5904\u7406 \/data \u8bf7\u6c42\u3002<\/li>\n<p>Nginx &#xff1a;<\/p>\n<li>\u7f16\u8f91 nginx.conf&#xff0c;\u786e\u4fdd listen 80; \u548c proxy_pass http:\/\/localhost:3000;\u3002<\/li>\n<li>\u91cd\u542f Nginx&#xff1a;sudo systemctl restart nginx\u3002<\/li>\n<li>\u68c0\u67e5\u914d\u7f6e&#xff1a;sudo nginx -t\u3002<\/li>\n<p>\u9632\u706b\u5899 &#xff1a;<\/p>\n<ul>\n<li>Linux&#xff1a;sudo ufw allow 80&#xff08;Nginx&#xff09;&#xff0c;sudo ufw allow 3000&#xff08;Node.js&#xff09;\u3002<\/li>\n<li>Windows&#xff1a;\u9632\u706b\u5899\u5141\u8bb8 TCP 80 \u548c 3000\u3002<\/li>\n<li>\u68c0\u67e5&#xff1a;sudo ufw status\u3002<\/li>\n<\/ul>\n<p>\u5b89\u5168\u7ec4 (\u963f\u91cc\u4e91) &#xff1a;<\/p>\n<ul>\n<li>\u63a7\u5236\u53f0 \u2192 ECS \u2192 \u5b89\u5168\u7ec4 \u2192 \u6dfb\u52a0\u89c4\u5219&#xff1a;\n<ul>\n<li>\u534f\u8bae&#xff1a;TCP<\/li>\n<li>\u7aef\u53e3&#xff1a;80\/80<\/li>\n<li>\u6765\u6e90&#xff1a;0.0.0.0\/0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u6d4b\u8bd5 &#xff1a;<\/p>\n<ul>\n<li>\u672c\u5730&#xff1a;telnet localhost 80 \u548c telnet localhost 3000&#xff0c;\u786e\u8ba4\u7aef\u53e3\u5f00\u653e\u3002<\/li>\n<li>\u5916\u7f51&#xff1a;curl [http:\/\/203.0.113.1\/data](http:\/\/203.0.113.1\/data) &#xff0c;\u8fd4\u56de\u201c\u5f02\u6b65\u6570\u636e\u201d\u3002<\/li>\n<\/ul>\n<p>\u8fd0\u884c\u6d41\u7a0b &#xff1a;<\/p>\n<li>\u7528\u6237\u8bbf\u95ee http:\/\/example.com\/data &#xff08;80 \u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u5b89\u5168\u7ec4\u68c0\u67e5&#xff1a;\u5141\u8bb8 TCP 80&#xff0c;\u8bf7\u6c42\u5230\u8fbe\u4e91\u670d\u52a1\u5668\u3002<\/li>\n<li>\u9632\u706b\u5899\u68c0\u67e5&#xff1a;\u5141\u8bb8 80 \u7aef\u53e3&#xff0c;\u8bf7\u6c42\u5230\u8fbe Nginx\u3002<\/li>\n<li>Nginx \u8f6c\u53d1&#xff1a;\u5c06\u8bf7\u6c42\u9001\u81f3 localhost:3000\/data\u3002<\/li>\n<li>Node.js \u5904\u7406&#xff1a;\n<ul>\n<li>\u540c\u6b65&#xff1a;console.log(&#039;\u5f00\u59cb\u5904\u7406\u8bf7\u6c42&#039;)\u3002<\/li>\n<li>\u5f02\u6b65&#xff1a;await \u7b49\u5f85 1 \u79d2&#xff0c;\u8f93\u51fa \u8bf7\u6c42\u5904\u7406\u5b8c\u6210&#xff0c;\u8fd4\u56de\u201c\u5f02\u6b65\u6570\u636e\u201d\u3002<\/li>\n<\/ul>\n<\/li>\n<p>Nginx \u8fd4\u56de &#xff1a;\u5c06\u201c\u5f02\u6b65\u6570\u636e\u201d\u4f20\u7ed9\u7528\u6237\u3002<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af &#xff1a;<\/p>\n<ul>\n<li>\u5fae\u4efb\u52a1&#xff1a;Promise \u5b8c\u6210&#xff0c;\u4f18\u5148\u5904\u7406\u3002<\/li>\n<li>\u5b8f\u4efb\u52a1&#xff1a;setTimeout \u6a21\u62df\u6162\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<p>\u63a7\u5236\u53f0\u8f93\u51fa &#xff1a;<\/p>\n<p>Node.js \u8dd1\u5728 http:\/\/localhost:3000<br \/>\n\u5f00\u59cb\u5904\u7406\u8bf7\u6c42<br \/>\n&#xff08;1\u79d2\u540e&#xff09;<br \/>\n\u8bf7\u6c42\u5904\u7406\u5b8c\u6210<\/p>\n<p>\u6d4f\u89c8\u5668\u7ed3\u679c &#xff1a;<\/p>\n<ul>\n<li>\u8bbf\u95ee http:\/\/example.com\/data &#xff0c;1 \u79d2\u540e\u770b\u5230\u201c\u5f02\u6b65\u6570\u636e\u201d\u3002<\/li>\n<li>\u8bbf\u95ee http:\/\/example.com\/images\/cat.jpg &#xff0c;Nginx \u8fd4\u56de\u56fe\u7247\u3002<\/li>\n<\/ul>\n<h3>7. \u5e38\u89c1\u7591\u95ee<\/h3>\n<p>Q1 &#xff1a;Node.js \u5355\u7ebf\u7a0b\u600e\u4e48\u5904\u7406\u9ad8\u5e76\u53d1&#xff1f;<\/p>\n<p>A1 &#xff1a;\u5f02\u6b65\u4efb\u52a1\u4e0d\u963b\u585e\u4e3b\u7ebf\u7a0b&#xff0c;\u4e8b\u4ef6\u5faa\u73af\u5feb\u901f\u8c03\u5ea6&#xff0c;\u6162\u4efb\u52a1\u4ea4\u7ed9\u540e\u53f0\u3002<\/p>\n<p>Q2 &#xff1a;\u4e3a\u4ec0\u4e48\u7528 Nginx&#xff0c;\u4e0d\u76f4\u63a5\u7528 Node.js&#xff1f;<\/p>\n<p>A2 &#xff1a;Node.js \u5355\u7ebf\u7a0b\u5904\u7406\u9759\u6001\u6587\u4ef6\u6162&#xff0c;Nginx \u591a\u7ebf\u7a0b\u9ad8\u6548&#xff0c;\u8fd8\u652f\u6301 HTTPS\u3001\u7f13\u5b58\u3002<\/p>\n<p>Q3 &#xff1a;\u5b8f\u4efb\u52a1\u548c\u5fae\u4efb\u52a1\u600e\u4e48\u533a\u5206&#xff1f;<\/p>\n<p>A3 &#xff1a;\u5fae\u4efb\u52a1\u662f\u5feb\u4efb\u52a1&#xff08;Promise\u3001nextTick&#xff09;&#xff0c;\u4f18\u5148\u7ea7\u9ad8&#xff1b;\u5b8f\u4efb\u52a1\u662f\u6162\u4efb\u52a1&#xff08;setTimeout\u3001\u6587\u4ef6\u8bfb\u5199&#xff09;&#xff0c;\u540e\u6267\u884c\u3002<\/p>\n<p>Q4 &#xff1a;\u534f\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b&#xff1f;<\/p>\n<p>A4 &#xff1a;\u7ebf\u7a0b\u662f CPU \u5206\u914d\u7684\u5de5\u4eba&#xff0c;\u5207\u6362\u8017\u8d44\u6e90&#xff1b;\u534f\u7a0b\u662f\u7a0b\u5e8f\u63a7\u5236\u7684\u52a9\u624b&#xff0c;\u5207\u6362\u5feb&#xff0c;Node.js \u7528 async\/await \u6a21\u62df\u3002<\/p>\n<p>Q5 &#xff1a;80 \u7aef\u53e3\u6ca1\u5f00\u600e\u4e48\u529e&#xff1f;<\/p>\n<p>A5 &#xff1a;\u68c0\u67e5&#xff1a;telnet localhost 80\u3002<\/p>\n<p>\u4fee\u590d&#xff1a;sudo ufw allow 80&#xff08;\u9632\u706b\u5899&#xff09;&#xff0c;\u963f\u91cc\u4e91\u5b89\u5168\u7ec4\u6dfb\u52a0 TCP 80\u3002<\/p>\n<h3>8. \u603b\u7ed3<\/h3>\n<ul>\n<li>Node.js &#xff1a;\u5355\u7ebf\u7a0b&#xff0c;\u9760\u5f02\u6b65\u548c\u4e8b\u4ef6\u5faa\u73af\u9ad8\u6548\u5904\u7406\u8bf7\u6c42\u3002<\/li>\n<li>\u4e8b\u4ef6\u5faa\u73af &#xff1a;\u8c03\u5ea6\u5b8f\u4efb\u52a1&#xff08;\u6162&#xff09;\u548c\u5fae\u4efb\u52a1&#xff08;\u5feb&#xff09;&#xff0c;\u5fae\u4efb\u52a1\u4f18\u5148\u3002<\/li>\n<li>Nginx &#xff1a;\u53cd\u5411\u4ee3\u7406&#xff0c;\u5904\u7406\u9759\u6001\u6587\u4ef6\u548c\u8bf7\u6c42\u8f6c\u53d1&#xff0c;\u63d0\u5347\u6027\u80fd\u3002<\/li>\n<li>\u540c\u6b65\u4e0e\u5f02\u6b65 &#xff1a;\u5f02\u6b65\u8ba9 Node.js \u5feb\u901f\u54cd\u5e94\u591a\u8bf7\u6c42\u3002<\/li>\n<li>\u7ebf\u7a0b\u4e0e\u534f\u7a0b &#xff1a;Node.js \u7528 async\/await \u6a21\u62df\u534f\u7a0b&#xff0c;\u9ad8\u6548\u8f7b\u91cf.<\/li>\n<li>\u7aef\u53e3\u914d\u7f6e &#xff1a;Nginx \u76d1\u542c 80 \u7aef\u53e3&#xff0c;\u9700\u5f00\u653e\u9632\u706b\u5899\u548c\u5b89\u5168\u7ec4\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e32\u6b21\uff0c\u6536\u85cf30\u6b21\u3002\u77e5\u8bc6\u70b9\u5b9a\u4e49\uff1aNode.js \u662f\u4e00\u4e2a\u8ba9 JavaScript \u8fd0\u884c\u5728\u670d\u52a1\u5668\u4e0a\u7684\u5de5\u5177\u3002\u5e73\u65f6 JavaScript \u8dd1\u5728\u6d4f\u89c8\u5668\u91cc\uff08\u5904\u7406\u7f51\u9875\u4ea4\u4e92\uff0c\u5982\u6309\u94ae\u70b9\u51fb\uff09\uff0c\u800c Node.js \u8ba9 JavaScript \u80fd\u5e72\u670d\u52a1\u5668\u7684\u4e8b\uff0c\u6bd4\u5982\u5904\u7406\u7528\u6237\u8bf7\u6c42\u3001\u8bfb\u5199\u6587\u4ef6\u3001\u642d\u5efa\u7f51\u7ad9\u540e\u53f0\u3002\u6838\u5fc3\u7279\u70b9\u5355\u7ebf\u7a0b\uff1aNode.js 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