javascript Node.js Express req.query 未定义
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Node.js Express req.query is undefined
提问by Ron Harlev
I'm running the following code on Node.js with Express 4.7.2
我正在使用 Express 4.7.2 在 Node.js 上运行以下代码
express.get('/test1',function(req, res) {
var ttt = false;
if (req.query.username === undefined) ttt = true;
res.json({query: ttt});
});
I call the URL:
我调用 URL：
{{protocol}}://{{server}}/test1?username=1
{{protocol}}://{{server}}/test1?username=1
And I get the result:
我得到了结果：
{query: true}
{查询：真}
Which shows req.query.usernameis indeed undefined
哪个节目req.query.username确实是undefined
What am I missing? How come the query param is not passed in?
我错过了什么？为什么没有传入查询参数？
回答by mscdex
The code you've shown works fine for me with node v0.10.30 and express 4.8.7:
您显示的代码对我来说适用于 node v0.10.30 和 express 4.8.7：
var app = require('express')();
app.get('/test1',function(req, res) {
var ttt = false;
if (req.query.username === undefined) ttt = true;
res.json({query: ttt});
});
app.listen(8000);
I then navigate to http://localhost:8000/test1?username=1and it displays {"query":false}.
然后我导航到http://localhost:8000/test1?username=1并显示{"query":false}.
