跨域请求与本地服务器搭建-优快云博客

test.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
    
</body>
<script src="http://127.0.0.1:8887/"></script>
//浏览器是允许像<link>、<img>、<Script>在标签上路径加载内容时是允许跨域的，它不关心服务器是否设置了跨域的头
</html>

server.js

const http = require('http')
const fs = require('fs')

http.createServer(function (request, response) {
  console.log('request come', request.url)

  const html = fs.readFileSync('test.html', 'utf8')//读取HTML内容
  response.writeHead(200, {
    'Content-Type': 'text/html'
  })
  response.end(html)
}).listen(8888)

console.log('server listening on 8888')

server2.js

const http = require('http')

http.createServer(function (request, response) {
  console.log('request come', request.url)
  response.end('123')
}).listen(8887)

console.log('server listening on 8887')