获取请求地址和参数（url模块的使用）

url 模块——url.parse( )

const http = require('http')
const url = require('url')

const server = http.createServer()

server.on('request', (req, res) => {
     
    console.log(url.parse(req.url))
    res.end('ok')
})

server.listen(3000,() => {
     
    console.log(' 服务器启动成功')
})

• 在命令行运行上述代码
• 通过浏览器发出：http://127.0.0.1:3000/list?id=123456&name=zhangsan&age=20
  的请求时，服务器端会将请求进行解析，可以得到请求地址以及请求参数

服务器启动成功
Url {
     
  protocol: null,
  slashes: null,
  auth: null,
  host: null,
  port: null,
  hostname: null,
  hash: null,
  search: '?id=123456&name=zhangsan&age=20',
  query: 'id=123456&name=zhangsan&age=20', // 请求参数
  pathname: '/list',  // 请求地址
  path: '/list?id=123456&name=zhangsan&age=20',
  href: '/list?id=123456&name=zhangsan&age=20'
}
Url {
     
  protocol: null,
  slashes: null,
  auth: null,
  host: null,
  port: null,
  hostname: null,
  hash: null,
  search: null,
  query: null,
  pathname: '/favicon.ico',
  path: '/favicon.ico',
  href: '/favicon.ico'
}

设置url.parse(req.url,true)，可以进一步将query解析为 对象，就可以得到id、name、age这些参数了

const http = require('http')
const url = require('url')

const server = http.createServer()

server.on('request', (req, res) => {
     
    console.log(url.parse(req.url, true))
    res.end('ok')
})

server.listen(3000,() => {
     
    console.log(' 服务器启动成功')
})

 服务器启动成功
Url {
     
  protocol: null,
  slashes: null,
  auth: null,
  host: null,
  port: null,
  hostname: null,
  hash: null,
  search: '?id=123456&name=zhangsan&age=20',
  query: [Object: null prototype] {
     
    id: '123456',
    name: 'zhangsan',
    age: '20'
  },
  pathname: '/list',
  path: '/list?id=123456&name=zhangsan&age=20',
  href: '/list?id=123456&name=zhangsan&age=20'
}
Url {
     
  protocol: null,
  slashes: null,
  auth: null,
  host: null,
  port: null,
  hostname: null,
  hash: null,
  search: null,
  query: [Object: null prototype] {
     },
  pathname: '/favicon.ico',
  path: '/favicon.ico',
  href: '/favicon.ico'
}

• 可以通过对对象结构来得到请求地址pathname以及请求参数对象query

const {
      pathname, query } = url.parse(req.url, true)