The difference between req.params req.query and req.body

req.params can be used

  • Restful URL
    • get
    • delete
  • Traditional URL
    • put
    • post

req.query can be used

  • Traditional URL
    • get
    • delete

req.body can be used

  • Restful URL
    • put
    • post

Traditional URL

E.g:

axios.get('http://localhost:3000/axios?id=123')
axios.get('http://localhost:3000/axios')

Reskful URL

E.g:

 axios.get('http://localhost:3000/axios/123')

Usage on the server

E.g:

// 传统的URL
app.get('/axios', (req, res) => {
    
    
    res.send('axios get 传递参数' + req.query.id)
})
// Restful 的URL
app.get('/axios/:id', (req, res) => {
    
    
    res.send('axios get(Restful) 传递参数' + req.params.id)
})
// 传统的URL
app.delete('/axios', (req, res) => {
    
    
    res.send('axios delete 传递参数' + req.query.id)
})
// Restful 的URL
app.delete('/axios/:id', (req, res) => {
    
    
    res.send('axios delete(Restful) 传递参数' + req.params.id)
})
// 传统的URL
app.post('/axios', (req, res) => {
    
    
    res.send('axios post 传递参数' + req.body.id + '---' + req.body.uname + '---' +
        req.body.pwd)
})
// Restful 的URL
app.post('/axios/:id', (req, res) => {
    
    
    res.send('axios post(Restful) 传递参数' + req.params.id + '---' + req.body.uname + '---' +
        req.body.pwd)
})
// 传统的URL
app.put('/axios', (req, res) => {
    
    
    res.send('axios put 传递参数' + req.body.id + '---' + req.body.uname + '---' +
        req.body.pwd)
})
// Restful 的URL
app.put('/axios/:id', (req, res) => {
    
    
    res.send('axios put(Restful) 传递参数' + req.params.id + '---' + req.body.uname + '---' +
        req.body.pwd)
})

Self-motivation

Only by bearing the ups and downs of the journey, can we finally keep the rainbow sky full.

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Origin blog.csdn.net/weixin_50001396/article/details/112955303