为什么req.params返回一个空数组？ [英] Why does req.params return an empty array?

问题描述

我正在使用Node.js，我想查看已发布到我的脚本的所有参数。要获得我的功能，在我的 routes / index.js 我在做：

I'm using Node.js and I want to see all of the parameters that have been posted to my script. To get to my function, in my routes/index.js I'm doing:

app.post('/v1/order', order.create);

然后在我的函数中，我有：

Then in my function, I have:

exports.create = function(req, res, next) {
 console.log( req.params );

但它返回一个空数组。但是当我这样做：

But it's returning an empty array. But when I do:

exports.create = function(req, res, next) {
 console.log( req.param('account_id') );

我获取数据。所以我对这里发生了什么有点困惑。

I get data. So I'm a bit confused as to what's going on here.

推荐答案

req.params只包含路由参数，而不是查询字符串参数（来自GET），而不是主体参数（来自POST）。 param（）函数检查所有三个，参见：

req.params only contain the route params, not query string params (from GET) and not body params (from POST). The param() function however checks all three, see:

http://expressjs.com/4x/api.html#req.params

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