文件上传下载

文件下载和文件上传

上传

//前台
 realgo(url){
        // 向后台发送文件
        let data = new FormData();
        data.append('url',url);
        axios.post('/user/upload',data, {headers: {'Content-Type': 'multipart/form-data'}}).then(res=>{
            console.log(res)
            this.download=res.data.url;
            this.phone=res.data.num;
        })
    },

//后台
let uploadAvatar = (req,res)=>{
    let str = JSON.stringify(req.body);
    str = JSON.parse(str);  
    console.log(str.url)
    let num ='';
    for(var i = 1;i <= 6;i++){
       const code = Math.floor(Math.random()*10);
       num+= code;
    }
    let rStream = fs.createReadStream(str.url);
    let word=str.url.slice(str.url.indexOf('.'))
    console.log(word)
    let wStream = fs.createWriteStream(path.join(__dirname, '../../public/avatar/' + './'+num+word));
    rStream.pipe(wStream)
    res.send({code:1,url:'/avatar/'+num+word,num})
}

下载文件

window.location.href='http://192.168.43.82:3000'+download;
ps:不需要别的后台代码，必须保证后台的静态资源路径正确

本文地址：https://blog.csdn.net/yuanmengfanseven/article/details/108991037