求助！为什么前端脚本post的数据，在express4.x下面用req.body获取不到，为undefinded？

express4下用了router，不再用app

@ringtail 嗯？我是将所有路由写在routes.js文件中，比如： var site = require('./routes/site'); var cms = require('./routes/cms'); module.exports = function(app) { app.get('/', site.initIndex); app.get('/cms', cms.index); app.post('/addattr', function(req, res){ console.log(req.body) }); }

然后在app.js中引入，route(app);

@ringtail难道我这个写法是express3的，整个设计模式都错了？

@moJiXiang http://jser.me/2014/03/18/express4.x%E6%96%B0%E7%89%B9%E6%80%A7%E4%BB%A5%E5%8F%8A%E5%A6%82%E4%BD%95%E4%BB%8E3.x%E5%8D%87%E7%BA%A7%E5%88%B04.x.html

请参考我的文章“使用express4.x版和Jade模板重写《nodejs开发指南》微博实例 ”， 网址：http://cnodejs.org/topic/53f23e198f44dfa35129c43b 前端我用的是jade模板生成的html: layout.jade的代码：

doctype html html head title= title link(rel='stylesheet', href='/stylesheets/bootstrap.css') link(rel='stylesheet', href='/stylesheets/style.css') link(rel='stylesheet', href='/stylesheets/bootstrap-responsive.css') script(src='/javascripts/jquery.js') script(src='/javascripts/bootstrap.js') body div.navbar.navbar-fixed-top div.narbar-inner div.container a(class='btn btn-navbar' data-toggle='collapse' data-target='.nav-collapse') span.icon-bar span.icon-bar span.icon-bar a(class='brand' href='/') Microblog div.nav-collapse ul.nav li.active a(href='/') 首页

      - if (!user)
        li
          a(href='/login') 登录
        li
          a(href='/reg') 注册
      - else
        li
          a(href='/logout') 退出

div#container.container

• if (success) div.alert.alert-success= success
• if (error) div.alert.alert-error= error
  block content div#footer.footer !='

  ---

  ' p a(href='http://www.hotelanywhere.cn' target='_blank') Tony Zhang @2014 All Right Reserved

注册页面reg.jade的代码，使用form，直接post到当前页

extends layout

block content

form(class='form-horizontal' method='post') fieldset legend 用户注册 div.control-group label(class='control-label' for='username') 用户名 div.controls input(type='text' class='input-xlarge' id='username' name='username') p(class='help-block') 你的账户名称，用于登录和显示 div.control-group label(class='control-label' for='password') 密码 div.controls input(type='password' class='input-xlarge' id='password' name='password') div.control-group label(class='control-label' for='password') 请再次输入密码 div.controls input(type='password' class='input-xlarge' id='password-repeat' name='password-repeat') div.form-actions button(type='submit' class='btn btn-primary') 注册

index.js中的代码片段，接收并解析post

router.post("/reg", checkNotLogin); router.post("/reg", function(req, res) { console.log(req.body['password']); console.log(req.body['password-repeat']); if(req.body['password-repeat'] != req.body['password']){ req.flash('error', '两次输入的密码不一致'); return res.redirect('/reg'); } var md5 = crypto.createHash('md5'); var password = md5.update(req.body.password).digest('base64');

var newUser = new User({ name: req.body.username, password: password, }); //检查用户名是否已经存在 User.get(newUser.name, function(err, user) { if (user) { err = 'Username already exists.'; } if (err) { req.flash('error', err); return res.redirect('/reg'); }

newUser.save(function(err) { if (err) { req.flash('error', err); return res.redirect('/reg'); } req.session.user = newUser; req.flash('success', req.session.user.name+'注册成功'); res.redirect('/'); });

}); });

没有加body-parser吧

@tonyzhan 谢谢！

@ravenwang +1