{"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":"2021-06-25T20:18:45","modified_gmt":"2021-06-25T12:18:45","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":"

\u4e4b\u524d\u7684\u6587\u7ae0\u6211\u4eec\u4ecb\u7ecd\u4e86\u4e00\u4e0b koa \u4e2d\u4f7f\u7528 ejs \u6a21\u677f\u53ca\u9875\u9762\u6e32\u67d3\uff0c\u672c\u7bc7\u6587\u7ae0\u6211\u4eec\u6765\u770b\u4e00\u4e0b koa post\u63d0\u4ea4\u6570\u636e\u53ca koa-bodyparser\u4e2d\u95f4\u4ef6\u3002<\/p>\n

\u5728\u524d\u7aef\u9875\u9762\u4e2d\uff0c\u4e0d\u514d\u4f1a\u7528\u5230 form \u8868\u5355\u548c post \u8bf7\u6c42\u5411\u540e\u7aef\u63d0\u4ea4\u6570\u636e\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u4e00\u4e0b koa \u662f\u5982\u4f55\u83b7\u53d6\u5230\u524d\u7aef\u901a\u8fc7 post \u8bf7\u6c42\u4f20\u8fc7\u6765\u7684\u6570\u636e\u3002<\/p>\n

\u6211\u4eec\u63a5\u7740\u4e0a\u4e00\u7bc7\u7684\u5185\u5bb9\u6765\u5199\u6211\u4eec\u7684\u9879\u76ee\uff0c\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b\u539f\u751f NodeJs \u662f\u5982\u4f55\u83b7\u53d6 post \u8bf7\u6c42\u6570\u636e\u7684\uff0c\u6211\u4eec\u5148\u5728 index.ejs \u4e2d\u5199\u4e00\u4e9b form \u8868\u5355\uff1a<\/p>\n

[java]
\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>
\n[\/java]<\/p>\n

\u6211\u4eec\u901a\u8fc7 form \u8868\u5355\u7684 post \u8bf7\u6c42\u5411\u540e\u7aef\u53d1\u9001 username \u548c password \u4e24\u4e2a\u6570\u636e\uff0c\u9875\u9762\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n

 <\/p>\n

\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u4e00\u4e0b app.js<\/p>\n

[java]
\n\/\/\u5f15\u5165 koa\u6a21\u5757
\nconst Koa = require(‘koa’);
\nconst Router = require(‘koa-router’);
\nconst views = require(‘koa-views’);<\/p>\n

\/\/\u5b9e\u4f8b\u5316
\nconst app = new Koa();
\nconst router = new Router();<\/p>\n

\/\/\u914d\u7f6e\u6a21\u677f\u5f15\u64ce\u4e2d\u95f4\u4ef6
\napp.use(views(‘views’, {
\n extension: ‘ejs’
\n}));<\/p>\n

router.get(‘\/’, async (ctx) => {
\n await ctx.render(‘index’, {});
\n});<\/p>\n

router.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});<\/p>\n

\/\/\u542f\u52a8\u8def\u7531
\napp.use(router.routes());
\napp.use(router.allowedMethods());<\/p>\n

app.listen(3000);
\n[\/java]<\/p>\n

\u5728\u539f\u6709\u5185\u5bb9\u4e0a\uff0c\u6211\u4eec\u589e\u52a0\u4e86\u4e00\u4e2a router.post(“\/add”, ) \u7684\u8def\u7531\uff0c\u5176\u4e2d “\/add” \u4e0e index.ejs \u4e2d form \u8868\u5355\u7684 action \u4e00\u81f4\uff0c\u6211\u4eec\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u5c06\u83b7\u53d6\u5230\u7684\u6570\u636e\u901a\u8fc7 str+ \u5c06\u6570\u636e\u62fc\u63a5\u5230\u4e00\u5757\uff0c\u5982\u679c\u83b7\u53d6\u6570\u636e\u9519\u8bef\u5219\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\uff0c\u6700\u540e\u5c06\u4fe1\u606f\u8fd4\u56de\u7ed9\u9875\u9762\u3002<\/p>\n

\u73b0\u5728\u6211\u4eec\u542f\u52a8\u9879\u76ee\uff0c\u5728\u9875\u9762 index.ejs \u4e2d\u7684 input \u4e2d\u5206\u522b\u8f93\u5165 admin \u548c 123456\uff0c\u7136\u540e\u70b9\u51fb button \u6309\u94ae\uff0c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n

 <\/p>\n

\u4ece\u4e0a\u9762\u7684\u9875\u9762\u663e\u793a\u6548\u679c\u8bf4\u660e\u6211\u4eec\u5df2\u7ecf\u6210\u529f\u7684\u63a5\u6536 post \u6570\u636e\u5e76\u62fc\u63a5\u5b8c\u6210\u8fd4\u8fd8\u7ed9\u4e86\u524d\u7aef\u9875\u9762\u3002<\/p>\n

\u4e0a\u9762\u7684 node \u539f\u751f\u65b9\u5f0f\u770b\u8d77\u6765\u8fd8\u662f\u5f88\u8d39\u4e8b\u7684\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u4e00\u4e0b koa-bodyparser \u6a21\u5757\u83b7\u53d6 post \u6570\u636e\u3002<\/p>\n

\u9996\u5148\u5f97\u4e0b\u8f7d\u8fd9\u4e2a\u5305\uff1a<\/p>\n

npm install koa-bodyparser –save<\/p><\/blockquote>\n

\u7136\u540e\u6211\u4eec\u5c06 app.js \u6539\u4e3a\u5982\u4e0b\uff1a<\/p>\n

[java]
\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’);<\/p>\n

\/\/\u5b9e\u4f8b\u5316
\nconst app = new Koa();
\nconst router = new Router();<\/p>\n

\/\/\u914d\u7f6e\u6a21\u677f\u5f15\u64ce\u4e2d\u95f4\u4ef6
\napp.use(views(‘views’, {
\n extension: ‘ejs’
\n}));<\/p>\n

\/\/\u914d\u7f6e koa-bodyparser \u4e2d\u95f4\u4ef6
\napp.use(bodyParser());<\/p>\n

router.get(‘\/’, async (ctx) => {
\n await ctx.render(‘index’, {});
\n});<\/p>\n

router.post(‘\/add’, async (ctx) => {
\n let data = ctx.request.body;
\n ctx.body = data;
\n});<\/p>\n

\/\/\u542f\u52a8\u8def\u7531
\napp.use(router.routes());
\napp.use(router.allowedMethods());<\/p>\n

app.listen(3000);
\n[\/java]<\/p>\n

\u6211\u4eec\u5148\u5728\u5934\u90e8\u5f15\u5165 koa-bodyparser \u6a21\u5757\uff0c\u7136\u540e\u6dfb\u52a0 app.use(bodyParser()) \u4e2d\u95f4\u4ef6\uff0c\u4e4b\u540e\u5c31\u53ef\u4ee5\u901a\u8fc7 ctx.request.body \u6765\u83b7\u53d6\u6211\u4eec\u7684\u6570\u636e\u4e86\u3002<\/p>\n

\u73b0\u5728\u6211\u4eec\u542f\u52a8\u9879\u76ee\uff0c\u5728\u9875\u9762 index.ejs \u4e2d\u7684 input \u4e2d\u5206\u522b\u8f93\u5165 admin \u548c 654321\uff0c\u7136\u540e\u70b9\u51fb button \u6309\u94ae\uff0c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n

 <\/p>\n

\u4ece\u4e0a\u9762\u7684\u9875\u9762\u8f93\u51fa\u7ed3\u679c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u6211\u4eec\u4e0d\u4ec5\u83b7\u53d6\u5230\u4e86 post \u7684\u8bf7\u6c42\u6570\u636e\uff0c\u800c\u4e14\u6570\u636e\u8fd8\u88ab\u81ea\u52a8\u8f6c\u6210\u4e86 json \u683c\u5f0f\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e4b\u524d\u7684\u6587\u7ae0\u6211\u4eec\u4ecb\u7ecd\u4e86\u4e00\u4e0b koa \u4e2d\u4f7f\u7528 ejs \u6a21\u677f\u53ca\u9875\u9762\u6e32\u67d3\uff0c\u672c\u7bc7\u6587\u7ae0\u6211\u4eec\u6765\u770b\u4e00\u4e0b koa post\u63d0\u4ea4\u6570 […]<\/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":[],"_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}]}}