无法让body-parser返回任何内容

I've read dussins of * posts now but I can't get my bodyparser to work. In order to not complicate things I changed to the most simple thing I could imagine, which is the code below and involve just parsing one single route. Can anyone see a problem?

我现在已经阅读了*帖子的dussins,但我无法让我的bodyparser工作。为了不使事情变得复杂,我改变了我能想象到的最简单的事情,这是下面的代码,只涉及解析一条路线。有谁能看到问题?

routes/login.js

var express = require('express');
var router = express.Router();
var bodyParser = require('body-parser');

router.get('/', (req, res) => {
        res.send('<form method="POST" action="'+ req.originalUrl +'"><input type="text" id="personalNumber" autocomplete="off"><input type="submit" value="Log in"></form>');
        res.end();
});

router.post('/', bodyParser.urlencoded({ extended: false }), (req, res) => {
        console.log('personal', req.body, req.personalNumber, res.body, req.headers);
        res.send('personal', req.body, req.personalNumber, res.body, JSON.stringify(req.headers));
        res.end();
});

module.exports = router;

server.js simplified

var express = require('express');
var app = express();

var login = require(__dirname + '/routes/login');
app.use('/login', login);

app.listen(80, () => {
        console.log('Listening on port 80');
});

Going to /login, typing anything in the input and submitting (triggering a post to /login) will give use the following console output:

转到/登录,在输入中输入任何内容并提交(触发帖子到/ login)将使用以下控制台输出:

Listening on port 80
personal {} undefined undefined { host: 'localhost',
  connection: 'keep-alive',
  'content-length': '0',
  pragma: 'no-cache',
  'cache-control': 'no-cache',
  origin: 'http://localhost',
  'upgrade-insecure-requests': '1',
  'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
  'content-type': 'application/x-www-form-urlencoded',
  accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
  referer: 'http://localhost/login',
  'accept-encoding': 'gzip, deflate',
  'accept-language': 'en-US,en;q=0.8,sv;q=0.6' }

Expected output would be for req.body to contain some information about the data from the form.

预期的输出将是req.body包含有关表单中数据的一些信息。

req.body = {
    personalNumber: 'inputData'
};

2 个解决方案

#1

body-parser works properly when it is added in your main file before all the routes

body-parser在所有路由之前添加到主文件中时可以正常工作

So put the following code after creating the object of express in server.js file

因此,在server.js文件中创建express对象后,请输入以下代码

var app = express();

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

#2

    var express = require('express');
    var router = express.Router();
    var bodyParser = require('body-parser');
    router.urlencoded({ extended: false });
    router.use(bodyParser.json());
    router.get('/', (req, res) => {
            res.send('<form method="POST" action="'+ req.originalUrl +'"><input type="text" id="username" autocomplete="off"><input type="submit" value="Log in"></form>');
            res.end();
    });

    router.post('/', (req, res) => {
            console.log('personal', req.body, req.personalNumber, res.body, req.headers);
            res.send('personal', req.body, req.personalNumber, res.body, JSON.stringify(req.headers));
            res.end();
    });

    module.exports = router;

Try this, It may work.

试试这个,它可能会奏效。

#1