[英]Multiple file upload with JQuery and MVC4
I am trying to upload multiple files along with normal form data. 我正在尝试上传多个文件以及正常的表格数据。 This thing i have formerly implemented in PHP now i am using to do this in ASP.NET MVC4 in C#.
我以前曾在PHP中实现过这个东西,现在我正在C#中的ASP.NET MVC4中使用它来实现。 I have an html form
我有一个HTML表单
<form action="/controller/actionane" name="applicationform" class="upload-form" method="post" onsubmit="return false;" enctype="multipart/form-data" id="userform">
<input class="form-control" type="file" class="upload-file" data-max-size="12582912" multiple="multiple" name="attachment[]" value="documents">
<input class="btn btn-success" type="submit" name="submit" onclick="formSubmit()" />
</form>
My Javascript Code with jquery-1.11.1 looks like this: 我的带有jquery-1.11.1的Javascript代码如下所示:
function formSubmit() {
var form = $("form[name='applicationform']");
var data = new FormData(form[0]);
$.ajax(
{
method: "POST",
url: form.attr("action"),
processData: false, // Don't process the files
contentType: false, cache: false, async: false,
data: data,
success: function (data) {
alert(data);
}
});
}
and my controller looks like this 我的控制器看起来像这样
[HttpPost]
public JsonResult submitApplication(HttpPostedFileBase[] attachment)
{
string fil= "";
foreach (HttpPostedFileBase file in attachment)
{
/*Geting the file name*/
string filename = System.IO.Path.GetFileName(file.FileName);
fil += filename;
/*Saving the file in server folder*/
file.SaveAs(Server.MapPath("~/Images/" + filename));
string filepathtosave = "Images/" + filename;
/*HERE WILL BE YOUR CODE TO SAVE THE FILE DETAIL IN DATA BASE*/
}
return this.Json(fil,JsonRequestBehavior.AllowGet);
}
But this is not passing files to the parameter Object reference null exception is thrown What should I do to get this running? 但这不是将文件传递给参数。对象引用将引发null异常怎么办才能使它运行?
You can try this: 您可以尝试以下方法:
Client Side Code: 客户端代码:
<html>
<head>
<title>Upload Example</title>
<script src="~/Scripts/jquery-2.1.0.intellisense.js"></script>
<script src="~/Scripts/jquery-2.1.0.js"></script>
<script src="~/Scripts/jquery-2.1.0.min.js"></script>
<script>
$(document).ready(function () {
$("#Upload").click(function () {
var formData = new FormData();
var totalFiles = document.getElementById("FileUpload").files.length;
for (var i = 0; i < totalFiles; i++)
{
var file = document.getElementById("FileUpload").files[i];
formData.append("FileUpload", file);
}
$.ajax({
type: "POST",
url: '/Home/Upload',
data: formData,
dataType: 'json',
contentType: false,
processData: false,
success: function (response) {
alert('succes!!');
},
error: function (error) {
alert("Failed");
}
});
});
});
</script>
</head>
<body>
<input type="file" id="FileUpload" multiple />
<input type="button" id="Upload" value="Upload" />
</body>
</html>
Server Side Code: 服务器端代码:
Server Side.... 服务器端....
public class HomeController : Controller
{
[HttpPost]
public void Upload( )
{
for( int i = 0 ; i < Request.Files.Count ; i++ )
{
var file = Request.Files[i];
var fileName = Path.GetFileName( file.FileName );
var path = Path.Combine( Server.MapPath( "~/[Your_Folder_Name]/" ) , fileName );
file.SaveAs( path );
}
}
}
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