我有以下文件上传处理程序:
当我上传大文件时,会引发OutOfMemoryException异常。请问有什么正确的方法可以使用这样的处理程序上传大文件?
public class FileUploader : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
HttpRequest request = context.Request;
context.Response.ContentType = "text/html";
context.Response.ContentEncoding = System.Text.Encoding.UTF8;
context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
var tempPath = request.PhysicalApplicationPath + "\\Files\\TempFiles\\";
byte[] buffer = new byte[request.ContentLength];
using (BinaryReader br = new BinaryReader(request.InputStream))
{
br.Read(buffer, 0, buffer.Length);
}
var tempName = WriteTempFile(buffer, tempPath);
context.Response.Write("{\"success\":true}");
context.Response.End();
}
public bool IsReusable
{
get { return true; }
}
private string WriteTempFile(byte[] buffer, string tempPath)
{
var fileName = GetUniqueFileName(tempPath);
File.WriteAllBytes(tempPath + fileName, buffer);
return fileName;
}
private string GetUniqueFileName(string tempPath)
{
var guid = Guid.NewGuid().ToString().ToUpper();
while (File.Exists(tempPath + guid))
{
guid = Guid.NewGuid().ToString().ToUpper();
}
return guid;
}
}
当我上传大文件时,会引发OutOfMemoryException异常。请问有什么正确的方法可以使用这样的处理程序上传大文件?
BinaryReader/Writer
都是非常错误的选择。 - leppie