const express=require('express');

const bodyParser=require('body-parser');

const multer=require('multer');

const fs=require('fs');

const pathLib=require('path');

var objMulter=multer({dest: './www/upload/'});   //multer        解析post文件    multipart/form-data

var server=express();

//错误

//server.use(bodyParser.urlencoded({extended: false}));

server.use(objMulter.any());

server.post('/', function (req, res){

  //新文件名

  //'./www/upload/dfb33662df86c75cf4ea8197f9d419f9' + '.png'

  var newName=req.files[0].path+pathLib.parse(req.files[0].originalname).ext;

  fs.rename(req.files[0].path, newName, function (err){

    if(err)

      res.send('上传失败');

    else

      res.send('成功');

  });

  //1.获取原始文件扩展名

  //2.重命名临时文件

});

server.listen(8080);