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-datavar 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);