我正在使用multer上传表单数据(一些图像文件)。
但是req.body和req.files都是空的。当我上传图片时,我收到了成功的消息“你的图片已被上传”,但我的文件夹是空的。
我尝试了StackOverflow和GitHub上的所有解决方案。但没有运气。
低于我的代码
HTML文件中的表单
<form id="uploadForm" enctype="multipart/form-data" action="multerFile" method="post">
<input type="file" name="userPhoto" multiple />
<input type="submit" value="Upload Image" name="submit">
<input type='text' id='random' name='random'>
<br>
<span id="status"></span>
</form>
<script>
$(document).ready(function () {
$('#uploadForm').submit(function () {
$("#status").empty().text("File is uploading...");
$(this).ajaxSubmit({
error: function (xhr) {
status('Error: ' + xhr.status);
},
success: function (response) {
console.log(response)
$("#status").empty().text(response);
}
});
return false;
});
});
</script>
index.js
app.post('/multerFile', function (req, res) {
console.log("hi i am multer function")
var storage = multer.diskStorage({
destination: 'C:/Users/chandra/Documents/project/node_project/public'
});
var upload = multer({ storage: storage }).array('userPhoto', 2);
upload(req, res, function (err) {
if (err) {
console.log(err);
return res.end("Error uploading file.");
} else {
console.log(req.body)
console.log(req.files);
req.files.forEach(function (f) {
console.log(f);
// and move file to final destination...
});
res.end("File has been uploaded");
}
});
});
我试过了:
Express, Multer, BodyParser req.body empty array
multer req.body showing empty always
https://github.com/expressjs/multer/issues/351
https://github.com/expressjs/multer/issues/391
我按照本教程进行了multer
https://codeforgeek.com/2016/01/multiple-file-upload-node-js/
我无法理解我做错了什么?
请帮忙。
提前致谢
首先,.ajaxSubmit()不是核心jQuery函数。你需要jQuery Form Plugin,我不知道你是否导入它如下:
<script src="http://malsup.github.com/jquery.form.js"></script>
最简单的方法是在没有这样的插件的情况下做到这一点:
$('#uploadForm').submit(function() {
$("#status").empty().text("File is uploading...");
var formData = new FormData($('#uploadForm')[0]);
$.ajax({
type: 'POST',
url: '/multerFile',
data: formData,
success: function(response) {
console.log(response)
$("#status").empty().text(response);
},
contentType: false, // Prevent jQuery to set the content type
processData: false // Prevent jQuery to process the data
});
return false;
});
现在在你的后端,你的目的地应该更好(在你的公共文件夹中上传文件夹):
var storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, './public/uploads/')
},
});
我刚刚将存储空间更改为
const storage = multer.diskStorage({
destination: './public/uploads/',
filename: function(req, file, cb){
cb(null,file.fieldname + '-' + Date.now() + path.extname(file.originalname));
}
});
它工作正常..