{"id":12659,"date":"2025-04-18T19:43:45","date_gmt":"2025-04-18T11:43:45","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/12659.html"},"modified":"2025-04-18T19:43:45","modified_gmt":"2025-04-18T11:43:45","slug":"%e7%ba%a2%e5%ae%9d%e4%b9%a6%e7%ac%ac%e5%9b%9b%e5%8d%81%e4%b8%83%e8%ae%b2%ef%bc%9anode-js%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%a1%86%e6%9e%b6%e8%a7%a3%e6%9e%90%ef%bc%9aexpress-vs-koa-%e5%ae%8c%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/12659.html","title":{"rendered":"\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357"},"content":{"rendered":"<h4>\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2&#xff1a;Node.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790&#xff1a;Express vs Koa \u5b8c\u5168\u6307\u5357<\/h4>\n<p>\u8d44\u6599\u53d6\u81ea\u300aJavaScript\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1&#xff08;\u7b2c5\u7248&#xff09;\u300b\u3002 \u67e5\u770b\u603b\u76ee\u5f55&#xff1a;\u7ea2\u5b9d\u4e66\u5b66\u4e60\u5927\u7eb2<\/p>\n<hr \/>\n<h5>\u4e00\u3001\u6846\u67b6\u5b9a\u4f4d&#xff1a;HTTP\u670d\u52a1\u5668\u7684\u5de5\u5177\u7bb1<\/h5>\n<p>\u5171\u540c\u529f\u80fd&#xff1a; \u5feb\u901f\u6784\u5efaWeb\u670d\u52a1\u5668\u3001\u5904\u7406\u8def\u7531\u8bf7\u6c42\u3001\u7ba1\u7406\u6587\u4ef6\u4e0a\u4f20\u7b49\u540e\u53f0\u529f\u80fd<\/p>\n<p>\u278a Express&#xff08;\u8001\u724c\u5feb\u9012\u7ad9&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u5904\u7406\u8bf7\u6c42&#xff08;\u4eba\u5de5\u67dc\u53f0&#xff09;<\/li>\n<li>\u4e2d\u95f4\u4ef6\u987a\u5e8f\u6267\u884c&#xff08;\u4f20\u9001\u5e26\u6d41\u6c34\u7ebf&#xff09;<\/li>\n<\/ul>\n<p>\u278b Koa&#xff08;\u667a\u80fd\u7269\u6d41\u4e2d\u5fc3&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528async\/await\u5904\u7406\u5f02\u6b65&#xff08;\u81ea\u52a8\u5316\u5206\u62e3\u673a&#xff09;<\/li>\n<li>\u6d0b\u8471\u5708\u6a21\u578b\u4e2d\u95f4\u4ef6&#xff08;\u591a\u5c42\u5904\u7406&#xff09;<\/li>\n<\/ul>\n<hr \/>\n<h5>\u4e8c\u3001Express\u4f7f\u7528\u8be6\u89e3&#xff1a;\u5feb\u9012\u5206\u62e3\u6d41\u6c34\u7ebf<\/h5>\n<p>1. \u57fa\u7840\u793a\u4f8b&#xff08;\u5feb\u9012\u7b7e\u6536\u6d41\u7a0b&#xff09;<\/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><span class=\"token comment\">\/\/ &#x1f4e6; \u7b2c\u4e00\u7ad9&#xff1a;\u7b7e\u6536\u68c0\u67e5<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<span class=\"token punctuation\">,<\/span> next<\/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;\u5305\u88f9\u6d88\u6bd2\u4e2d&#8230;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u2192 \u4f20\u9012\u5230\u4e0b\u4e00\u7ad9<\/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\">\/\/ &#x1f69a; \u7b2c\u4e8c\u7ad9&#xff1a;\u8def\u7531\u6d3e\u9001<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/package&#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;\u5feb\u9012\u5df2\u7b7e\u6536&#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><\/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;\u5feb\u9012\u7ad9\u5df2\u8425\u4e1a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>2. \u4e2d\u95f4\u4ef6\u6d41\u7a0b\u56fe <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418114344-68023af006de3.png\" alt=\"\" \/><\/p>\n<hr \/>\n<h5>\u4e09\u3001Koa\u4f7f\u7528\u89e3\u6790&#xff1a;\u6d0b\u8471\u5f0f\u7cbe\u52a0\u5de5<\/h5>\n<p>1. \u6838\u5fc3\u7279\u5f81&#xff08;6\u5c42\u5305\u88f9\u5904\u7406\u673a&#xff09;<\/p>\n<p><span class=\"token keyword\">const<\/span> Koa <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;koa&#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 keyword\">new<\/span> <span class=\"token class-name\">Koa<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e2d\u95f4\u4ef6\u6267\u884c\u987a\u5e8f&#xff1a;1 \u2192 3 \u2192 5 \u2192 6 \u2192 4 \u2192 2<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ctx<span class=\"token punctuation\">,<\/span> next<\/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;1-\u8fdb\u5165\u5916\u5c42&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">await<\/span> <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u2192 \u8fdb\u5165\u7b2c\u4e8c\u5c42<\/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;2-\u9000\u51fa\u5916\u5c42&#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\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ctx<span class=\"token punctuation\">,<\/span> next<\/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;3-\u8fdb\u5165\u4e2d\u5c42&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">await<\/span> <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u2192 \u8fdb\u5165\u6838\u5fc3\u5904\u7406<\/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;4-\u9000\u51fa\u4e2d\u5c42&#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\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ctx<\/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;5-\u6838\u5fc3\u5904\u7406&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  ctx<span class=\"token punctuation\">.<\/span>body <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\u5305\u88f9\u52a0\u5de5\u5b8c\u6210&#039;<\/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>\u6267\u884c\u7ed3\u679c&#xff1a;<\/p>\n<p>1 \u2192 3 \u2192 5 \u2192 4 \u2192 2<\/p>\n<p>2. \u6d0b\u8471\u6a21\u578b\u793a\u610f\u56fe <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418114344-68023af03ec25.png\" alt=\"\" \/><\/p>\n<hr \/>\n<h5>\u56db\u3001\u5173\u952e\u5dee\u5f02\u5bf9\u6bd4\u8868<\/h5>\n<table>\n<tr>\u7279\u6027ExpressKoa<\/tr>\n<tbody>\n<tr>\n<td>\u5f02\u6b65\u5904\u7406<\/td>\n<td>\u56de\u8c03\u51fd\u6570&#xff08;Callback Hell\u98ce\u9669&#xff09;<\/td>\n<td>Async\/Await&#xff08;\u4ee3\u7801\u66f4\u6e05\u6670&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u9519\u8bef\u5904\u7406<\/td>\n<td>\u9700\u5355\u72ec\u4e2d\u95f4\u4ef6\u5904\u7406<\/td>\n<td>\u901a\u8fc7try\/catch\u81ea\u52a8\u6355\u83b7<\/td>\n<\/tr>\n<tr>\n<td>\u4e2d\u95f4\u4ef6\u673a\u5236<\/td>\n<td>\u7ebf\u6027\u6d41\u6c34\u7ebf\u6a21\u578b<\/td>\n<td>\u6d0b\u8471\u5708\u6a21\u578b&#xff08;\u53cc\u5411\u5904\u7406&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u4f53\u79ef<\/td>\n<td>\u8f83\u5927&#xff08;\u542b\u5185\u7f6e\u4e2d\u95f4\u4ef6&#xff09;<\/td>\n<td>\u8f7b\u91cf\u5316&#xff08;\u9700\u624b\u52a8\u9009\u4e2d\u95f4\u4ef6\u5305&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>\u4f20\u7edf\u4e2d\u578b\u9879\u76ee<\/td>\n<td>\u73b0\u4ee3\u9ad8\u5e76\u53d1\u6216\u9700\u7cbe\u7ec6\u63a7\u5236\u7684\u9879\u76ee<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h5>\u4e94\u3001\u5f00\u53d1\u5efa\u8bae<\/h5>\n<p><span class=\"token comment\">\/\/ Koa\u9519\u8bef\u5904\u7406\u793a\u8303&#xff08;\u81ea\u52a8\u6355\u83b7\u5f02\u5e38&#xff09;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ctx<span class=\"token punctuation\">,<\/span> next<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> <span class=\"token function\">next<\/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 keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    ctx<span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">500<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ctx<span class=\"token punctuation\">.<\/span>body <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\u670d\u52a1\u5668\u5185\u90e8\u9519\u8bef&#039;<\/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<p><span class=\"token comment\">\/\/ Express\u8def\u7531\u53c2\u6570\u793a\u4f8b<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/books\/:id&#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  <span class=\"token keyword\">const<\/span> bookId <span class=\"token operator\">&#061;<\/span> req<span class=\"token punctuation\">.<\/span>params<span class=\"token punctuation\">.<\/span>id<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u83b7\u53d6\u8def\u7531\u53c2\u6570<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u67e5\u8be2\u7b2c<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>bookId<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\u672c\u4e66<\/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><\/p>\n<hr \/>\n<p>\u5c0f\u767d\u9009\u62e9\u6307\u5357&#xff1a;<\/p>\n<ul>\n<li>\u521a\u63a5\u89e6\u540e\u7aef\u5f00\u53d1 \u2192 \u9009Express&#xff08;\u6559\u7a0b\u4e30\u5bcc&#xff0c;\u8d44\u6599\u591a&#xff09;<\/li>\n<li>\u9700\u8981\u9ad8\u6027\u80fd\u5f02\u6b65\u5904\u7406 \u2192 \u9009Koa&#xff08;\u66f4\u9002\u5408\u73b0\u4ee3JS\u8bed\u6cd5&#xff09;<\/li>\n<li>\u5927\u578b\u4f01\u4e1a\u9879\u76ee \u2192 \u8003\u8651NestJS&#xff08;\u57fa\u4e8eExpress\/Koa\u7684\u8d85\u96c6\u6846\u67b6&#xff09;<\/li>\n<\/ul>\n<h5>\u516d\u3001\u6d4f\u89c8\u5668\u4e8b\u4ef6\u6d41\u4e0e\u540e\u7aef\u4e2d\u95f4\u4ef6 <sup class=\"footnote-ref\">1<\/sup><\/h5>\n<p>Express\/Koa \u7684\u4e2d\u95f4\u4ef6\u673a\u5236\u7c7b\u4f3c\u4e8e\u6d4f\u89c8\u5668\u4e8b\u4ef6\u6d41&#xff08;\u5192\u6ce1\/\u6355\u83b7&#xff09;&#xff1a;<\/p>\n<table>\n<tr>\u6d4f\u89c8\u5668\u4e8b\u4ef6\u6d41\u540e\u7aef\u4e2d\u95f4\u4ef6\u6a21\u578b\u7c7b\u6bd4\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>\u6355\u83b7\u9636\u6bb5&#xff08;\u7236\u2192\u5b50&#xff09;<\/td>\n<td>\u8bf7\u6c42\u5904\u7406\u7684\u9884\u5904\u7406\u9636\u6bb5<\/td>\n<td>\u4e2d\u95f4\u4ef6\u6309\u987a\u5e8f\u62e6\u622a\u8bf7\u6c42&#xff08;\u5982\u65e5\u5fd7\u8bb0\u5f55&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u76ee\u6807\u9636\u6bb5&#xff08;\u4e8b\u4ef6\u89e6\u53d1&#xff09;<\/td>\n<td>\u6838\u5fc3\u8def\u7531\u903b\u8f91\u5904\u7406<\/td>\n<td>app.get(&#039;\/user&#039;, handler)<\/td>\n<\/tr>\n<tr>\n<td>\u5192\u6ce1\u9636\u6bb5&#xff08;\u5b50\u2192\u7236&#xff09;<\/td>\n<td>\u54cd\u5e94\u7684\u540e\u5904\u7406\u9636\u6bb5<\/td>\n<td>\u4e2d\u95f4\u4ef6\u4fee\u6539\u54cd\u5e94\u7ed3\u679c&#xff08;\u5982\u538b\u7f29\u6570\u636e&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418114344-68023af062431.png\" alt=\"\" \/><\/p>\n<hr \/>\n<h5>\u4e03\u3001DOM \u7ed3\u6784\u4e0e\u8def\u7531\u5206\u5c42\u8bbe\u8ba1 <sup class=\"footnote-ref\">2<\/sup><sup class=\"footnote-ref\">3<\/sup><\/h5>\n<p>Express\/Koa \u7684\u8def\u7531\u5d4c\u5957\u8bbe\u8ba1\u7c7b\u4f3c DOM \u6811\u7684\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u5047\u8bbe\u4e3a Express \u7c7b\u4f3c\u7684\u8def\u7531\u62c6\u5206&#xff08;\u53c2\u8003\u8d44\u65993\u7684\u6a21\u5757\u5316\u539f\u5219&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> userRouter <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.\/routes\/user&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token punctuation\">,<\/span> userRouter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c06\/user\u8def\u5f84\u6302\u8f7d\u5230\/api\u4e0b<\/span><\/p>\n<p><span class=\"token comment\">\/\/ user.js \u6587\u4ef6\u5185\u5bb9&#xff08;\u6a21\u5757\u5bfc\u51fa&#xff09;<\/span><br \/>\n<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> router <span class=\"token operator\">&#061;<\/span> express<span class=\"token punctuation\">.<\/span><span class=\"token function\">Router<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/profile&#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;\u7528\u6237\u9875\u9762&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nmodule<span class=\"token punctuation\">.<\/span>exports <span class=\"token operator\">&#061;<\/span> router<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7c7b\u6bd4 DOM \u7684\u5c42\u7ea7\u5173\u7cfb <sup class=\"footnote-ref\">2<\/sup>&#xff1a;<\/p>\n<p>&lt;api&gt;              &lt;!&#8211; \u57fa\u8def\u5f84 &#8211;&gt;<br \/>\n  &lt;user&gt;           &lt;!&#8211; \u5b50\u8def\u7531 &#8211;&gt;<br \/>\n    &lt;profile\/&gt;     &lt;!&#8211; \u5177\u4f53\u8def\u7531 &#8211;&gt;<br \/>\n  &lt;\/user&gt;<br \/>\n&lt;\/api&gt;<\/p>\n<hr \/>\n<h5>\u516b\u3001\u5f02\u6b65\u5904\u7406\u4e0e\u4e8b\u4ef6\u9a71\u52a8 <sup class=\"footnote-ref\">1<\/sup><sup class=\"footnote-ref\">4<\/sup><\/h5>\n<p>Koa \u7684async\/await\u5f02\u6b65\u63a7\u5236\u5bf9\u6bd4\u6d4f\u89c8\u5668fetch\u94fe\u5f0f\u8c03\u7528&#xff1a;<\/p>\n<p>Koa \u793a\u4f8b&#xff08;\u5047\u8bbe\u8bed\u6cd5&#xff09;&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u4e2d\u95f4\u4ef6&#xff1a;\u6a21\u62df\u5f02\u6b65\u9a8c\u8bc1<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">ctx<span class=\"token punctuation\">,<\/span> next<\/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\u9a8c\u8bc1\u6743\u9650&#8230;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">await<\/span> <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u7b49\u5f85\u4e0b\u6e38\u4e2d\u95f4\u4ef6\u6267\u884c\u5b8c\u6210<\/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;\u9a8c\u8bc1\u7ed3\u675f&#8230;&#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\">\/\/ \u8def\u7531\u5904\u7406&#xff08;\u7c7b\u4f3c\u6d4f\u89c8\u5668API\u8bf7\u6c42[^5]&#xff09;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token parameter\">ctx<\/span> <span class=\"token operator\">&#061;&gt;<\/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 function\">fetchDataFromDB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  ctx<span class=\"token punctuation\">.<\/span>body <span class=\"token operator\">&#061;<\/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>\u6d4f\u89c8\u5668fetch\u5bf9\u6bd4 <sup class=\"footnote-ref\">4<\/sup>&#xff1a;<\/p>\n<p><span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api\/data&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">response<\/span> <span class=\"token operator\">&#061;&gt;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/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 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>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">catch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<hr \/>\n<h3>\u76ee\u5f55&#xff1a;\u603b\u76ee\u5f55 \u4e0a\u7bc7\u6587\u7ae0&#xff1a;\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u516d\u8bb2&#xff1a;Node.js\u57fa\u7840\u4e0eAPI\u8bbe\u8ba1\u89e3\u6790 \u4e0b\u7bc7\u6587\u7ae0&#xff1a;\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u516b\u8bb2&#xff1a;\u5b9e\u65f6\u901a\u4fe1\u53cc\u96c4&#xff1a;Socket.IO &amp; Meteor \u7684\u5947\u5999\u65c5\u7a0b<\/h3>\n<h4>\u811a\u6ce8<\/h4>\n<hr \/>\n<hr class=\"footnotes-sep\" \/>\n<li id=\"fn1\" class=\"footnote-item\">\n<p>\u300aJavaScript\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1&#xff08;\u7b2c5\u7248&#xff09;\u300b\u7684\u4e8b\u4ef6\u6d41\u6a21\u578b\u7c7b\u4f3c\u4e2d\u95f4\u4ef6\u6d41\u7a0b \u21a9\ufe0e \u21a9\ufe0e<\/p>\n<\/li>\n<li id=\"fn2\" class=\"footnote-item\">\n<p>\u300aJavaScript\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1&#xff08;\u7b2c5\u7248&#xff09;\u300b\u63cf\u8ff0\u4e86DOM\u7684\u6811\u5f62\u7ed3\u6784&#xff0c;\u7c7b\u4f3c\u8def\u7531\u5206\u5c42 \u21a9\ufe0e \u21a9\ufe0e<\/p>\n<\/li>\n<li id=\"fn3\" class=\"footnote-item\">\n<p>\u300aJavaScript\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1&#xff08;\u7b2c5\u7248&#xff09;\u300b\u5f3a\u8c03\u6a21\u5757\u5316\u7f16\u7a0b&#xff0c;\u53c2\u8003\u4e86\u8def\u7531\u62c6\u5206\u7684\u5b9e\u8df5 \u21a9\ufe0e<\/p>\n<\/li>\n<li id=\"fn4\" class=\"footnote-item\">\n<p>\u300aJavaScript\u9ad8\u7ea7\u7a0b\u5e8f\u8bbe\u8ba1&#xff08;\u7b2c5\u7248&#xff09;\u300b\u4e2d\u7684\u5f02\u6b65API\u8bf7\u6c42\u903b\u8f91\u4e0eKoa\u5f02\u6b65\u5904\u7406\u6a21\u5f0f\u7c7b\u4f3c \u21a9\ufe0e \u21a9\ufe0e<\/p>\n<\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb945\u6b21\uff0c\u70b9\u8d5e30\u6b21\uff0c\u6536\u85cf9\u6b21\u3002\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357<\/p>\n","protected":false},"author":2,"featured_media":12656,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[709,187,186,87,707,708,43],"topic":[],"class_list":["post-12659","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-express","tag-javascript","tag-node-js","tag-87","tag-707","tag-708","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/12659.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb945\u6b21\uff0c\u70b9\u8d5e30\u6b21\uff0c\u6536\u85cf9\u6b21\u3002\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/12659.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-18T11:43:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418114344-68023af006de3.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/12659.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/12659.html\",\"name\":\"\u7ea2\u5b9d\u4e66\u7b2c\u56db\u5341\u4e03\u8bb2\uff1aNode.js\u670d\u52a1\u5668\u6846\u67b6\u89e3\u6790\uff1aExpress vs Koa \u5b8c\u5168\u6307\u5357 - 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