asp.net上传大文件:抛出System.OutOfMemoryException
本文关键字:抛出 System OutOfMemoryException 文件 net asp | 更新日期: 2023-09-27 18:24:15
我想通过ASP.NET将大文件上传到WCF服务。在100MB不是问题之前,我的配置工作得很好,但超过100MB时会抛出System.OutOfMemoryException。
上传方法适用于FileStream,但在此之前,我会将文件保存到一个临时文件夹中。不确定这是问题所在,还是其他原因。我添加了我的控制器的代码,它负责调用wcf服务。
[HttpPost]
public ActionResult Upload()
{
if (Request.Files.Count > 0)
{
var file = Request.Files[0];
if (file != null && file.ContentLength > 0)
{
string fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/App_Data/Images"), fileName);
file.SaveAs(path);
FileStream fsSource = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
TileService.TileServiceClient client = new TileService.TileServiceClient();
client.Open();
client.UploadFile(fileName, fsSource);
client.Close();
fsSource.Dispose();
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
}
}
return RedirectToAction("");
}
该方法被称为:
@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<input type="file" name="FileUploader" />
<br />
<input type="submit" name="Submit" id="Submit" value="Upload file" />
}
在ASP.NET web.config中,我已经设置了以下内容:executionTimeout、maxRequestLength、requestLengthDiskThreshold、maxAllowedContentLength。我添加了配置的绑定部分。
<basicHttpBinding>
<binding name="BasicHttpBinding_ITileService"
closeTimeout="24:01:00" openTimeout="24:01:00" receiveTimeout="24:10:00" sendTimeout="24:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="4294967295" maxBufferSize="2147483647" maxReceivedMessageSize="4294967295" textEncoding="utf-8" transferMode="Streamed" useDefaultWebProxy="true" messageEncoding="Text">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
我认为问题不在代码中。ASP.NET项目托管在IIS Express中,而不是本地IIS中。由于我在项目属性中更改了这一点,所以一切都很顺利。
不过,我现在使用的是@nimeshjm的代码。谢谢你的帮助!
您可以尝试使用Request.Files[0].InputStream 分块读取它
大致如下:
public ActionResult Upload()
{
if (Request.Files.Count > 0)
{
var file = Request.Files[0];
if (file != null && file.ContentLength > 0)
{
string fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/App_Data/Images"), fileName);
using (var fs = new FileStream(path, FileMode.OpenOrCreate))
{
var buffer = new byte[1024];
int count;
while ((count = file.InputStream.Read(buffer, 0, 1024)) > 0)
{
fs.Write(buffer, 0, count);
}
}
FileStream fsSource = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
TileService.TileServiceClient client = new TileService.TileServiceClient();
client.Open();
client.UploadFile(fileName, fsSource);
client.Close();
fsSource.Dispose();
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
}
}
return RedirectToAction("");
}