nodejs使用反向代理跨域的完整代码

最新推荐文章于 2025-02-24 21:28:13 发布

闲散客

最新推荐文章于 2025-02-24 21:28:13 发布

阅读量446

点赞数

分类专栏：前端文章标签： nodejs

本文链接：https://blog.youkuaiyun.com/weixin_44295944/article/details/98884656

版权

前端专栏收录该内容

16 篇文章

订阅专栏

前端代码：

<!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>手机号查询</title>
</head>
<body>
    <script>
        axios.get('http://localhost:9000',{params:{
           myUrl : `http://apis.juhe.cn/mobile/get?phone=15938335231&key=6033c85baa0ef963cb62430c1b23f171` //查询手机号的接口
        }} ).then(({data}) => {
            console.log(data);
        });
    </script>
</body>
</html>

服务器端代码：

let http=require('http');
let https=require('https');
var iconv = require('iconv-lite');//nodejs识别gbk
let express=require('express');
let app=express();

app.use(express.json());
app.use(express.urlencoded({ extended: false }));

app.use('*',function(req,res,next){
    res.header('Access-Control-Allow-Origin','*');
    res.header('Access-Control-Allow-Credentials',' true');
    res.header('Access-Control-Allow-Methods','GET,PUT,POST,DELETE,OPTIONS');
    res.header('Access-Control-Allow-Headers','WWW-Authenticate,Authorization,Set-Cookie,X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version,name');
    next();
});

/*
    1.完成中转服务器的实现
    2.服务器需要支持http和https
*/

app.get('/',(req,response)=>{
    let obj={};
    let url=req.query.myUrl;
    console.log(url);
    //没有传递路径
    if(url==undefined){
        obj.code='600';
        obj.msg={infor:'使用方法错误',use:'http://localhost:9000?myUrl=?'};
        response.send(JSON.stringify(obj));
        return;
    }

    //https请求
    if(url.indexOf('https')!=-1){
        https.get(url,function(res){
            // res.setEncoding('gbk');
            let str='';
            // let datas=[];
            res.on('data',chuck=>{
                str+=chuck;
                // datas.push(chuck);
            });
            res.on('end',function(){
                response.send(msg);
            })
        });
    }else{
        getInfoFromServer(url,function(data){
            console.log(data);
            response.send(data);
        });
    }

});

app.listen('9000',err=>{
    if(!err){
        console.log('ther server is running on 9000.............');
        console.log('you can use as :http://localhost:9000?myUrl=?');
    }
});

//向第三方服务器发起请求
function getInfoFromServer(url,fn){
    let msg=""; //保存数据
    http.get(url,res=>{
        //接收数据
        res.on('data',chuck=>{
            // msg+=chuck;
            // msg.push(chuck);
            msg+=chuck;
        });
        res.on('end',()=>{
            // console.log(msg);
            // var decodedBody = iconv.decode(Buffer.concat(msg), 'utf-8');
            fn(msg);
        });

    });
}