当使用
jQuery-File-Upload plugin使用分块启用的
programmatic file upload时,无法获取多个文件发送.
我打电话如下：
fileUploadWidget.fileupload('send',{
files: filesList
})
filesList是File对象的列表.
另外我已经设置了maxChunkSize,并将singleFileUploads设置为true(我也尝试过false),如Options wiki page所示.
有没有人有这样的工作成功？
更新：
我在GitHub上做了一个issue这个问题,这里是作者的回应：
[…] Chunked uploads only support one file per request.
That is,you can still simultaneously upload multiple files in chunks,but you’ll have to send mutliple requests for that.
我们的解决方案
正如已经评论过的那样,我们最终做的是将文件发送到一个循环,在这个循环中,widget被初始化为sequentialUploads设置为true(你会想要这个取决于你的后端如何配置)：
// for illustration only
// does not do anything with the returned jqXHR objects
for (i = 0; i < files.length; i++) {
widget.fileupload('send',{ files: files[i] });
}
解决方法
如果你使用C#作为后端,你可以试试这个(Client-Side,JQuery)：
$("#btnUpload").click(function () { // btnUpload is the ID of any button for upload
var formdata = new FormData(); //FormData object
var fileInput = document.getElementById('fileInput');
//Iterating through each files selected in fileInput
for (i = 0; i < fileInput.files.length; i++) {
//Appending each file to FormData object
formdata.append(fileInput.files[i].name,fileInput.files[i]);
}
//Creating an XMLHttpRequest and sending
var xhr = new XMLHttpRequest();
xhr.open('POST','/UploadMethod'); // UploadMethod is your back-end code
xhr.send(formdata);
xhr.onreadystatechange = function () {
if (xhr.readyState == 4 && xhr.status == 200) {
// alert("uploaded");
}
}
});
然后在你UploadMethod上这样做：(ServerSide,C#)
public void Upload()
{
for (int i = 0; i < Request.Files.Count; i++)
{
HttpPostedFileBase file = Request.Files[i]; //Uploaded file
//Use the following properties to get file's name,size and MIMEType
int fileSize = file.ContentLength;
string fileName = file.FileName;
string mimeType = file.ContentType;
System.IO.Stream fileContent = file.InputStream;
//To save file,use SaveAs method
var appPath = HostingEnvironment.ApplicationPhysicalPath + "Documents/" + "_" + DateTime.Now+ fileName;
file.SaveAs(appPath); //File will be saved in Documents folder
}
}