在Express中将参数路由空

Question

I try print router parametrs but req.params is empty, don't know what I'm doing wrong.

In app.js:

...
var shareFile=require('./controllers/file/share');
...
app.use('/share/:id', shareFile);
...

And share.js controller:

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

router.get('/', function (req, res, next) {
    res.send(req.params)
});

module.exports = router;

localhost:3000/share/123 gives empty json page. Changing res.send to console.log gives {} .

Thanks

Answer 1

req.params will produce {id: 'abc'} when the routing is defined as /share/:id and you made the call to http://yourserver/share/abc

router.get('/', function (req, res, next) {
    res.send(req.params)
});

Above you should expect that req.params will be empty here because your are not expecting them. But you should see them here:

router.get('/share/:id', function (req, res, next) {
    res.send(req.params)
});