首先在nginx根目录的html目录下新建一个index.html文件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Welcome to nginx!</title>
<style>
</style>
</head>
<body>
<button onclick="main()">点击</button>
<script>
function main(){
console.log(1)
var xhr=new XMLHttpRequest();
xhr.withCredentials=true;
xhr.open('get','http://localhost:81/user?user=admin',true);
xhr.onreadystatechange=function(){
if(xhr.readyState==4){
if(xhr.status>=200&&xhr.status<400){
console.log(xhr.responseText)
}
}
}
xhr.send()
}
</script>
</body>
</html>
然后再配置nginx.conf文件的server模块
server {
listen 81;
server_name localhost;
location /{
root html;
index index.html index.htm;
}
location /user{
proxy_pass http://localhost:8080;
}
}
当发起ajax请求时通过nginx代理到http://localhost:8080
const http=require('http');
const server=http.createServer()
server.on('request',function(req,res){
console.log(req.url.split('?'))
res.write(JSON.stringify(124));
res.end()
})
server.listen(8080,()=>{console.log('监听端口')})
这样后端就可以接收到请求
前端也可以接收后端的数据