如何从Express，Param和查询中的URL获取ID似乎不起作用 [英] how to get id from url in express, param and query doesnt seem to work

问题描述

我有一个网址，我正在尝试获取ID，但都无法正常运行req.params或req.query

I have a url, i'm trying to get id but none of it is working req.params nor req.query

app.get('/test/:uid', function testfn(req, res, next) {
  debug('uid', req.params.uid);  // gives :uid
  debug('uid', req.query.uid);  // gives undefined      
});

我正在像这样进行ajax呼叫

I'm doing an ajax call like this

$(document).on('click', 'a.testlink', function(e) {
  $.ajax({
    type: "GET",
    url: '/test/:uid',
    success: function(var) {
      console.log('success');
    },
    error: function() {
      alert('Error occured');
    }
  });
  return false;
});

我正在使用

app.use(express.json());
app.use(express.urlencoded());

代替正文解析器

推荐答案

您的代码按预期工作:ajax调用指定url: '/test/:uid'，这就是将:uid放入req.params.uid的原因.

Your code is working as expected: The ajax call specifies url: '/test/:uid' which is what puts :uid in req.params.uid.

尝试发送其他内容:url: '/test/123'和req.params.uid将包含123

Try sending something else: url: '/test/123' and req.params.uid will contain 123

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