服务端nodejs抓取jsonp接口数据实现示例

function test() {
  let x = 10, y = 20;
  let sum = eval('x + y')
  console.log(sum);  // 30
}

// 报错
function test() {
  let x = 10, y = 20;
  let fn = new Function('return x + y')
  let sum = fn()
  console.log(sum) // ReferenceError: x is not defined
}
// 正常执行
global.x = 10
global.y = 20
function test() {
  let fn = new Function('return x + y')
  let sum = fn()
  console.log(sum) // 30
}

const vm = require('vm')
global.x = 10
global.y = 20
function test() {
  let sum = vm.runInThisContext('x + y')
  console.log(sum) // 30
}

// index.js
const vm = require('vm')
const axios = require('axios')
// 在 global 对象上挂载对应的 callback 方法
global.jQuery11230971606670044967_1649312313646 = function(res) {
  // jsonp 接口返回的数据
  console.log(res)
  // do something
}
async function getData() {
  let { data } = await axios({
    url: 'https://push2.eastmoney.com/api/qt/clist/get?cb=jQuery11230971606670044967_1649312313646&fid=f62&po=1&pz=10&pn=1&np=1&fltt=2&invt=2&fs=m%3A90+t%3A3&stat=1&fields=f12%2Cf14%2Cf2%2Cf3%2Cf62%2Cf184%2Cf66%2Cf69%2Cf72%2Cf75%2Cf78%2Cf81%2Cf84%2Cf87%2Cf204%2Cf205%2Cf124&ut=b2884a393a59ad64002292a3e90d46a5'
  })
  // 查看返回内容的类型
  console.log(typeof data)
  // 执行 callback
  vm.runInThisContext(data)
}
// 调用抓取数据的方法
getData()