我正在学习nodejs和express,我正在尝试上传文件,下面是我的代码
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"}
,这总是显示空对象,我谷歌了很多,但不能使它工作
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 } ]
{}
提前感谢您的帮助
发布于 2018-08-11 23:41:23
req.body
将保存表单中的任何文本字段(如果有),本例中没有文本字段。您没有明确提到要对该文件执行什么操作,但是当您记录req.files
数组时,您可以看到文件上传成功。它在那里有你的文件对象。您应该能够使用path或对象的buffer
属性对该文件执行操作,该对象包含整个文件的缓冲区。
发布于 2018-08-12 00:56:32
在您的app.js中更改以下内容:
const upload=multer({
dest:'./public/uploads'
})
试一试,
https://stackoverflow.com/questions/51801180
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