我有一个大的zip文件(500MB或更大),我正在读入一个MemoryStream并作为FileStreamResult返回。但是,对于超过200MB的文件,我得到了OutOfMemory异常。在我的行动,我有以下代码:ASP MVC FileStreamResult OutOfMemoryException
MemoryStream outputStream = new MemoryStream();
using (var fs = new FileStream(filepath, FileMode.Open, FileAccess.Read))
{
//Response.BufferOutput = false; // to prevent buffering
byte[] buffer = new byte[1024];
int bytesRead = 0;
while ((bytesRead = fs.Read(buffer, 0, buffer.Length)) > 0)
{
outputStream.Write(buffer, 0, bytesRead);
}
}
outputStream.Seek(0, SeekOrigin.Begin);
return new FileStreamResult(outputStream, content_type);
我不想使用ReadAllBytes,因为2GB的限制,也是因为一次将整个文件读入内存时的内存问题。 – user327999 2012-04-04 14:25:06