1.安裝依賴模組

node上傳檔案首先要安裝依賴模組：

npm install fs multer path

這三個模組是上傳檔案所必須的

2.前端

form表單上傳檔案必須要設定引數 enctype=”multipart/form-data”
程式碼如下：

<form action="/file.html" method="post" enctype="multipart/form-data">
<input type="file" name="wenjian">
<input type="submit" value="提交">
 

3.後臺

在node後臺程式碼中，先引入模組

var express = require('express');
var router = express.Router();
var fs = require('fs')
var multer = require('multer')
var path = require('path');
var bin = multer({dest:'bin'});//用來儲存檔案的資料夾名稱

router.post('/file.html',bin.single('wenjian'),function(req,res,next){
    console
 
.log(req.body.name);
    var filename = req.file.originalname;
    console.log(req.file);
    fs.renameSync('./bin/'+req.file.filename,'./bin/'+req.body.name+'/'+filename);
    res.render('file', {});  
});


  module.exports = router;