{"id":2384,"date":"2020-02-01T18:41:41","date_gmt":"2020-02-01T10:41:41","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=2384"},"modified":"2026-08-18T12:35:23","modified_gmt":"2026-08-18T04:35:23","slug":"koa2-%e4%bb%8e%e5%85%a5%e9%97%a8%e5%88%b0%e8%bf%9b%e9%98%b6%e4%ba%94-post%e8%af%b7%e6%b1%82%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=2384","title":{"rendered":"koa2 \u4ece\u5165\u95e8\u5230\u8fdb\u9636(\u4e94)-post\u8bf7\u6c42\u53c2\u6570"},"content":{"rendered":"
\n

\u4e0a\u4e00\u7bc7\u7528 ejs \u628a\u9875\u9762\u6e32\u67d3\u51fa\u6765\u4e86\u3002\u8fd9\u4e00\u7bc7\u89e3\u51b3\u8868\u5355\u63d0\u4ea4\uff1aKoa \u600e\u4e48\u62ff\u5230\u524d\u7aef POST<\/strong> \u8fc7\u6765\u7684\u6570\u636e\u3002\u53ef\u4ee5\u81ea\u5df1\u62fc Node \u539f\u751f\u7684 data \/ end<\/code> \u4e8b\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4e0a koa-bodyparser<\/code>\uff0c\u7528 ctx.request.body<\/code> \u4e00\u6b21\u8bfb\u5b8c\u3002<\/p>\n

\u63a5\u7740\u4e0a\u4e00\u7bc7\u7684\u9879\u76ee\uff1a\u5148\u5728 index.ejs<\/code> \u91cc\u653e\u8868\u5355\uff0c\u518d\u5206\u522b\u7528\u539f\u751f\u65b9\u5f0f\u548c\u4e2d\u95f4\u4ef6\u63a5\u6536 username<\/code>\u3001password<\/code>\u3002<\/p>\n

\u4e00\u3001\u8868\u5355 POST \u5230 \/add<\/h2>\n

action=\"\/add\"<\/code>\u3001method=\"post\"<\/code>\uff0c\u63d0\u4ea4\u7528\u6237\u540d\u548c\u5bc6\u7801\u3002\u540e\u53f0\u8def\u7531\u8def\u5f84\u5fc5\u987b\u548c action \u4e00\u81f4\u3002<\/p>\n

<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <title><\/title>\n<\/head>\n<body>\n<form action=\"\/add\" method=\"post\">\n    \u7528\u6237\u540d: <input type=\"text\" name=\"username\"\/>\n    <br\/>\n    <br\/>\n    \u5bc6\u3000\u7801: <input type=\"password\" name=\"password\"\/>\n    <br\/>\n    <br\/>\n    <button type=\"submit\">\u63d0\u4ea4<\/button>\n<\/form>\n<\/body>\n<\/html><\/code><\/pre>\n
\u4e8c\u3001\u539f\u751f Node \u62fc POST \u4f53<\/h2>\n
\u589e\u52a0 router.post('\/add')<\/code>\u3002\u76d1\u542c ctx.req<\/code> \u7684 data \u628a chunk \u62fc\u8fdb\u5b57\u7b26\u4e32\uff0cend \u65f6 resolve\uff1b\u51fa\u9519\u5219 reject\u3002await \u62ff\u5230\u5b8c\u6574\u5b57\u7b26\u4e32\u540e\u518d\u8d4b\u7ed9 ctx.body<\/code>\u3002<\/p>\n
\/\/\u5f15\u5165 koa\u6a21\u5757\nconst Koa = require('koa');\nconst Router = require('koa-router');\nconst views = require('koa-views');\n\n\/\/\u5b9e\u4f8b\u5316\nconst app = new Koa();\nconst router = new Router();\n\n\/\/\u914d\u7f6e\u6a21\u677f\u5f15\u64ce\u4e2d\u95f4\u4ef6\napp.use(views('views', {\n    extension: 'ejs'\n}));\n\nrouter.get('\/', async (ctx) => {\n    await ctx.render('index', {});\n});\n\nrouter.post('\/add', async (ctx) => {\n    getData = function () {\n        return new Promise(function (resolve, reject) {\n            try {\n                let str = '';\n                ctx.req.on('data', function (chunk) {\n                    str += chunk;\n                });\n                ctx.req.on('end', function (chunk) {\n                    resolve(str)\n                })\n            } catch (err) {\n                reject(err)\n            }\n        })\n    };\n    let data = await getData();\n    ctx.body = data;\n});\n\n\/\/\u542f\u52a8\u8def\u7531\napp.use(router.routes());\napp.use(router.allowedMethods());\n\napp.listen(3000);<\/code><\/pre>\n
\u542f\u52a8\u540e\u5728\u8868\u5355\u91cc\u8f93\u5165 admin \u548c 123456 \u518d\u63d0\u4ea4\uff0c\u9875\u9762\u4f1a\u56de\u663e\u62fc\u597d\u7684 POST \u539f\u6587\uff08\u5f62\u5982 username=admin&password=123456<\/code>\uff09\u3002\u80fd\u6536\u5230\uff0c\u4f46\u6bcf\u6b21\u90fd\u8981\u624b\u5199 Promise\uff0c\u6bd4\u8f83\u8d39\u4e8b\u3002<\/p>\n
\u4e09\u3001koa-bodyparser \u8bfb ctx.request.body<\/h2>\n
\u5148\u5b89\u88c5\u4e2d\u95f4\u4ef6\uff0c\u518d app.use(bodyParser())<\/code>\u3002\u4e4b\u540e POST \u4f53\u5df2\u7ecf\u89e3\u6790\u597d\uff0c\u76f4\u63a5\u8bfb\u5bf9\u8c61\u5373\u53ef\u3002<\/p>\n
npm install koa-bodyparser --save<\/code><\/pre>\n
\/\/\u5f15\u5165 koa\u6a21\u5757\nconst Koa = require('koa');\nconst Router = require('koa-router');\nconst views = require('koa-views');\nconst bodyParser = require('koa-bodyparser');\n\n\/\/\u5b9e\u4f8b\u5316\nconst app = new Koa();\nconst router = new Router();\n\n\/\/\u914d\u7f6e\u6a21\u677f\u5f15\u64ce\u4e2d\u95f4\u4ef6\napp.use(views('views', {\n    extension: 'ejs'\n}));\n\n\/\/\u914d\u7f6e koa-bodyparser \u4e2d\u95f4\u4ef6\napp.use(bodyParser());\n\nrouter.get('\/', async (ctx) => {\n    await ctx.render('index', {});\n});\n\nrouter.post('\/add', async (ctx) => {\n    let data = ctx.request.body;\n    ctx.body = data;\n});\n\n\/\/\u542f\u52a8\u8def\u7531\napp.use(router.routes());\napp.use(router.allowedMethods());\n\napp.listen(3000);<\/code><\/pre>\n
\u8fd9\u6b21\u5728\u8868\u5355\u8f93\u5165 admin \u548c 654321 \u518d\u63d0\u4ea4\uff0c\u9875\u9762\u62ff\u5230\u7684\u5df2\u7ecf\u662f\u89e3\u6790\u540e\u7684\u5bf9\u8c61\uff0c\u800c\u4e0d\u518d\u662f\u539f\u59cb\u67e5\u8be2\u4e32\u3002<\/p>\n\n\n\n\n\n\n
\u65b9\u5f0f<\/th>\n\u600e\u4e48\u8bfb<\/th>\n\u5f97\u5230\u4ec0\u4e48\uff08admin \/ 654321\uff09<\/th>\n<\/tr>\n<\/thead>\n
\u539f\u751f ctx.req on data\/end<\/td>\n\u81ea\u5df1\u62fc\u5b57\u7b26\u4e32<\/td>\nusername=admin&password=654321<\/td>\n<\/tr>\n
koa-bodyparser<\/td>\nctx.request.body<\/td>\n{ username: ‘admin’, password: ‘654321’ }<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
\u4e00\u53e5\u8bdd\u603b\u7ed3\uff1aPOST \u53ef\u4ee5\u81ea\u5df1\u62fc req \u7684 data \u4e8b\u4ef6\uff0c\u4f46\u65e5\u5e38\u7528 koa-bodyparser\uff0c\u76f4\u63a5\u8bfb ctx.request.body \u5bf9\u8c61\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
\u4e0a\u4e00\u7bc7\u7528 ejs \u628a\u9875\u9762\u6e32\u67d3\u51fa\u6765\u4e86\u3002\u8fd9\u4e00\u7bc7\u89e3\u51b3\u8868\u5355\u63d0\u4ea4\uff1aKoa \u600e\u4e48\u62ff\u5230\u524d\u7aef POST \u8fc7\u6765\u7684\u6570\u636e\u3002\u53ef\u4ee5\u81ea\u5df1\u62fc […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[107,105],"tags":[208],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2384"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2384"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2384\/revisions"}],"predecessor-version":[{"id":3268,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2384\/revisions\/3268"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2384"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}