Asp.net mvc asp.net mvc 4和jquery文件上载请求.Files.Count始终为0
我目前正在使用asp.net mvc 4,并使用jquery文件上载上载图像,如果我这样初始化:Asp.net mvc asp.net mvc 4和jquery文件上载请求.Files.Count始终为0,asp.net-mvc,jquery-file-upload,Asp.net Mvc,Jquery File Upload,我目前正在使用asp.net mvc 4,并使用jquery文件上载上载图像,如果我这样初始化: $('#fileupload').fileupload(); $('#fileupload').fileupload('option', { //url: '/Admin/News/Create', maxFileSize: 500000000, acceptFileTypes: /(\.|\/
$('#fileupload').fileupload();
$('#fileupload').fileupload('option', {
//url: '/Admin/News/Create',
maxFileSize: 500000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
maxNumberOfFiles: 1,
resizeMaxWidth: 1920,
resizeMaxHeight: 1200,
});
//$('#fileupload').fileupload();
$('#fileupload').fileupload('option', {
//url: '/Admin/News/Create',
maxFileSize: 500000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
maxNumberOfFiles: 1,
resizeMaxWidth: 1920,
resizeMaxHeight: 1200,
});
选择图像文件时,图像可以在borwser中预览,但在mvc Action Request.Files.Count中为0,这意味着没有上载文件。
如果我像这样初始化:
$('#fileupload').fileupload();
$('#fileupload').fileupload('option', {
//url: '/Admin/News/Create',
maxFileSize: 500000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
maxNumberOfFiles: 1,
resizeMaxWidth: 1920,
resizeMaxHeight: 1200,
});
//$('#fileupload').fileupload();
$('#fileupload').fileupload('option', {
//url: '/Admin/News/Create',
maxFileSize: 500000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
maxNumberOfFiles: 1,
resizeMaxWidth: 1920,
resizeMaxHeight: 1200,
});
我无法预览图像,但mvc操作会获取文件,有人知道为什么吗?
控制器的邮政编码:
[HttpPost]
[ValidateInput(false)]
public ActionResult Create(NewsViewModel model, FormCollection form)
{
if (ModelState.IsValid)
{
//....
// upload image
foreach (string file in Request.Files)
{
HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase;
if (hpf.ContentLength == 0)
continue;
string path = Path.Combine(Server.MapPath("~/Uploads/News/"),GUID.NewGuid()+ Path.GetExtension(hpf.FileName));
hpf.SaveAs(path);
data.ImagePath = path;
_iNewsService.UpdateNews(data);
}
}
}
我也遇到了同样的问题,解决方法如下:
[HttpPost]
[ValidateInput(false)]
public ActionResult Create(NewsViewModel model, FormCollection form)
{
var length = Request.ContentLength;
var bytes = new byte[length];
Request.InputStream.Read(bytes, 0, length);
//or for creating image from stream
Bitmap bmp = new Bitmap(Bitmap.FromStream(InputStream));
bmp.Save("some path");
}
希望这能有所帮助。为什么这行
url:'/Admin/News/Create',
被注释掉了?因为我不想自动上传,而且我使用的是强类型视图,表单有它的操作assigned@BehnamEsmaili请查看问题Bitmap bmp=新位图(Bitmap.FromStream(InputStream));我尝试过其他一些方法,例如使用图像而不是位图,这一行始终命中异常“参数无效”您是指Request.InputStream为null吗?如果字节有值,则Request.InputStream
也必须有值。当使用Image.FromStream(stream)Bitmap时,FromStream(stream)将命中该异常