Question

我尝试在我的nodejs应用程序中发送包含数据的表单，但我得到了＃34; undefined＆＃34;我不确定这是否重要但是在控制台中我首先看到＆＃34; undefined＆＃34;然后POST。我已经尝试了一些＆＃34;修复＆＃34;来自互联网，如添加＆＃34;类型：＆＃39; application / * + json＆＃39;，inflate：false＆＃34;到app.use（bodyParser.json ...），但没有任何对我有用......

Undefined
POST /users/register 200 32.777 ms - 2346

这是我的routes / users.js文件：

var express = require('express');
var router = express.Router();

router.get('/register', function(req, res, next) {
  res.render('register', {
    'title': 'Register'
  });
});

router.post('/register', function(req, res, next) {
  console.log(req.body.name);
});

module.exports = router;

继承我的玉文件

form(method='post', action='/users/register', role='form')
        .form-group
            label Name
            input.form-control(type='text', name='name', placeholder='Enter Name')
        input.btn.btn-default(name='submit', type='submit', value='Register')

和app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var expressValidator = require('express-validator');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bodyParser = require('body-parser');
var flash = require('connect-flash');
var mongo = require('mongodb');
var mongoose = require('mongoose');
var db = mongoose.connection;

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(bodyParser.json({ type: 'application/*+json' }));

app.use(session({
  secret: 'secret',
  saveUninitialized: true,
  resave: true
}));

app.use(passport.initialize());
app.use(passport.session());

app.use(expressValidator({
  errorFormatter: function(param, msg, value) {
    var namespace = param.split('.'),
        root = namespace.shift(),
        formParam = root;
    while(namespace.length) {
      formParam += '[' + namespace.shift() + ']';
    }
    return {
      param: formParam,
      msg: msg,
      value: value
    };
  }
}));

app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use(flash());
app.use(function(req, res, next) {
  res.locals.messages = require('express-messages')(req, res);
  next();
});

app.use('/', routes);
app.use('/users', users);

app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});


module.exports = app;

路由工作正常，显示设置标题为＆＃34;注册＆＃34;，但我发送帖子有问题：/

Answer 1

您正在将body-parser配置为仅接受JSON请求正文，但您的表单是以URL编码格式（application/x-www-form-urlencoded）提交的。

为此，您需要添加正确的解析器：

app.use(bodyParser.urlencoded({ extended : true }));

更多信息，也包括extended : true，here的含义。

发送post nodejs时未定义

1 个答案: