server 8081端口
let http = require('http');
let server = http.createServer((req, res) => {
console.log("服务端已开启--8081端口")
res.writeHead(200, {
'Content-Type': 'text/plain;charset=utf-8',//utf-8编码
'Access-Control-Allow-Origin': 'http://localhost:8080', //"*"表示任意字段
'Access-Control-Expose-Headers':'Cache-Control',
'Access-Control-Allow-Headers':'X-Custom-Header',
'Access-Control-Allow-Credentials': true,
'Access-Control-Allow-Methods': 'PUT,GET,POST'
})
res.end('这是
https://blog.csdn.net/qq_36996271/article/details/89762667?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.edu_weight&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.edu_weight
8081端口返回的数据')
}).listen(8081)
8080端口
<body>
<div class="">我在8080端口，请求8081端口的数据</div>
<script type="text/javascript">
let xhr = new XMLHttpRequest()
xhr.open('put','http://localhost:8081',true);
xhr.setRequestHeader('X-Custom-Header', 'value');
xhr.withCredentials = true;
//xhr.setRequestHeader('X-Custom-Header', 'value')
xhr.onload = function(res){
// 获取数据
console.log(xhr.responseText,res);
// 修改页面的dom元素
console.log(xhr.getAllResponseHeaders(Headers))
}
xhr.onerror = function(err) {
console.log(err)
}
xhr.send()
</script>
let http = require('http');
let fs = require('fs')
let server = http.createServer((req, res) => {
console.log("客户端已开启--8080端口")
// 读取HTML文件
let html = fs.readFileSync('./user-agent.html', 'utf8')
res.writeHead(200, {
'Content-Type': 'text/html'
})
// 将读取到的HTML文件写入到响应流中
res.end(html)
}).listen(8080)