我正在学习nodejs并进行表达,我正尝试执行文件上传,以下是我的代码
const express = require('express');
const multer = require('multer');
const app = express();
const port = process.env.PORT||3000;
const path = require('path');
const fs= require('fs');
const xlsx = require('node-xlsx');
const bodyParser=require('body-parser')
const storage=multer.diskStorage({
destination:'./public/uploads',
filename:function(req,file,cb){
cb(null,file.fieldname+'-'+Date.now()+path.extname(file.originalname))
}
})
const upload=multer({
storage:storage
})
app.set('port',port);
app.set('view engine', 'ejs');
app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static('./public'));
app.post('/uploadTest', upload.single('myImage'),function (req, res, next) {
setTimeout(function(){
console.log(req.files);
console.log(req.body);// {"someParam": "someValue"}
res.send(req.body);
}, 3000);
// req.file is the `avatar` file
// req.body will hold the text fields, if there were any
})
var server=app.listen(app.get('port'),(req,res)=>{
console.log(`server started at port ${app.get('port')}`)
});
下面是我的HTML
<form action="/uploadTest" method="post" enctype="multipart/form-data">
<input type="file" name="myImage"/>
<input type="submit" value="Add File"/>
</form>
所以我的问题是console.log(req.body);// {"someParam": "someValue"}
,这总是在Google上显示很多空对象,但无法使其工作
这是我得到的输出
[ { fieldname: 'myImage',
originalname: 'SampleXLSFile_19kb.xls',
encoding: '7bit',
mimetype: 'application/vnd.ms-excel',
destination: './public/uploads',
filename: 'myImage-1534000938255.xls',
path: 'public\\uploads\\myImage-1534000938255.xls',
size: 19456 } ]
{}
谢谢您的帮助
答案 0 :(得分:0)
req.body
将保留表单中的任何文本字段(如果存在),在这种情况下,该文本字段将不存在。您没有特别提到要使用该文件做什么,但是当您记录req.files
数组时,可以看到文件上传成功。它在那里有您的文件对象。您应该能够使用包含整个文件缓冲区的对象的路径或属性buffer
对该文件执行操作。
答案 1 :(得分:0)
在您的app.js中更改此内容:
const upload=multer({
dest:'./public/uploads'
})
然后尝试