文件上传
multer
cnpm i multer -D
//1、引入、配置
const multer = require('multer');
let multerObj = multer({dest:'./xxx'});
//2、加给中间件
server.use(multerObj);
//3、用file
request.files
server_multer.js
const express = require("express");
//const myBodyParser = require('./libs/my-body-parser');
//const logger = require('./libs/my-logger');
const multer = require('multer'); //文件
const fs = require('fs');
const path = require('path');
const bodyParser = require('body-parser'); //文本
let server = express();
server.listen(3000);
let multerObj = multer({dest:'./upload'});
server.use(multerObj.any());
server.use(bodyParser.urlencoded({extended:false}));
//server.use(bodyParser.urlencoded({extended:false}))
//server.use(logger);
//server.use(myBodyParser.urlencoded);
server.post('/upload',(req,res,next)=>{
console.log(req.files);
let i=0;
_next();
function _next(){
let newName = req.files[i].path + path.extname(req.files[i].originalname);
fs.rename(req.files[i].path,newName,err=>{
if(err){
res.sendStatus(500,'rename error');
res.end();
}else{
i++;
if(i>=req.files.length){
res.send('upload ok!');
res.end();
}else{
_next();
}
}
});
}
})
form_upload.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>form1</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<form action="http://localhost:3000/upload" method="post" enctype="multipart/form-data">
<input type='file' name='f1'></input>
<input type="submit" value="上传"/>
</form>
</body>
</html>
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