Node.js:req.query[] 和 req.params 之间的区别

Question

通过 req.query[myParam] 和 req.params.myParam 获取 QUERY_STRING 参数有区别吗？如果是这样，我应该什么时候使用哪个？

Answer 1

鉴于这条路线

app.get('/hi/:param1', function(req,res){} );
// regex version
app.get(/^\/hi\/(.*)$/, function(req,res){} );
// unnamed wild card
app.get('/hi/*', function(req,res){} );

并给出这个 URLhttp://www.google.com/hi/there?qs1=you&qs2=tube

你将拥有:

req.查询

{
  qs1: 'you',
  qs2: 'tube'
}

req.参数

{
  param1: 'there'
}

When you use a regular expression for the route definition, capture groups are provided in the array using req.params[n], where n is the nth capture group. This rule is applied to unnamed wild card matches with string routes

Express req.params >>