文件上传并改名

 

var http = require("http");
var formidable = require('formidable');
var util = require("util");
var fs = require("fs");
var sd = require("silly-datetime");
var path = require("path");


//创建服务器
var server = http.createServer(function(req,res){
    //如果你的访问地址是这个,并且请求类型是post
    if(req.url == "/dopost" && req.method.toLowerCase() == "post"){
        //Creates a new incoming form.
        var form = new formidable.IncomingForm();
        //设置文件上传存放地址
        form.uploadDir = "./uploads";
        //执行里面的回调函数的时候,表单已经全部接收完毕了。
        form.parse(req, function(err, fields, files) {
            //if(err){
            //    throw err;
            //}
            //console.log(util.inspect({fields: fields, files: files}));

            //时间,使用了第三方模块,silly-datetime
            var ttt = sd.format(new Date(), 'YYYYMMDDHHmmss');
            var ran = parseInt(Math.random() * 89999 + 10000);
            var extname = path.extname(files.tupian.name);
            //执行改名
            var oldpath = __dirname + "/" + files.tupian.path;
            //新的路径由三个部分组成:时间戳、随机数、拓展名
            var newpath = __dirname + "/uploads/" + ttt + ran + extname;

            //改名
            fs.rename(oldpath,newpath,function(err){
                if(err){
                    throw Error("改名失败");
                }
                res.writeHead(200, {'content-type': 'text/plain'});
                res.end("成功");
            });
        });
    }else if(req.url == "/"){
        //呈递form.html页面
        fs.readFile("./form.html",function(err,data){
            res.writeHead(200, {'content-type': 'text/html'});
            res.end(data);
        })
    }else{
        res.writeHead(404, {'content-type': 'text/html'});
        res.end("404");
    }
});

server.listen(80,"192.168.41.36");

 

html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <form action="dopost" method="post" enctype="multipart/form-data">
        <p>
            姓名 : <input type="text" name="name">
        </p>
        <p>
            性别 : 
             <input type="radio" name="sex" value="男"><input type="radio" name="sex" value="女"></p>
        <p>
            爱好:
            <input type="checkbox" name="hobby" value="睡觉" />睡觉
            <input type="checkbox" name="hobby" value="吃饭" />吃饭
            <input type="checkbox" name="hobby" value="足球" />足球
        </p>
        <p>
            图片:
            <input type="file" name="tupian" />
        </p>
        <p>
            <input type="submit" />
        </p>
    </form>
</body>
</html>

 

posted @ 2017-11-02 21:51  Erick-LONG  阅读(280)  评论(0编辑  收藏  举报