Question

我有一个简单的功能，可以通过网页上传文件。当我上传大小为16 MB的文件时，它可以工作，但是如果我尝试使用更大的文件，例如。 57 MB，程序抛出
Stream was too long exception。

Stream memStream = new MemoryStream();            

for (int i = 0; i < files.Length; i++)
            {
                memStream.Write(boundarybytes, 0, boundarybytes.Length);
                var header = string.Format(headerTemplate, "uplTheFile", files[i]);
                var headerbytes = Encoding.UTF8.GetBytes(header);

                memStream.Write(headerbytes, 0, headerbytes.Length);

                using (var fileStream = new FileStream(files, FileMode.Open, FileAccess.Read))
                {
                    var buffer = new byte[fileStream.Length];
                    var bytesRead = 0;
                    while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        memStream.Write(buffer, 0, bytesRead);
                    }

                }
            }

            memStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
            request.ContentLength = memStream.Length;

            using (Stream requestStream = request.GetRequestStream())
            {
                memStream.Position = 0;
                byte[] tempBuffer = new byte[memStream.Length];
                memStream.Read(tempBuffer, 0, tempBuffer.Length);
                memStream.Close();
                requestStream.Write(tempBuffer, 0, tempBuffer.Length);
            }

            using (var response = request.GetResponse())
            {
                Stream stream2 = response.GetResponseStream();
                StreamReader reader2 = new StreamReader(stream2);
                return reader2.ReadToEnd();
            }

我以这种方式初始化请求。

    HttpWebRequest request = HttpWebRequest.Create(url);
    request.Timeout = 3600000;
    request.Method = "POST";
    request.KeepAlive = true;

Answer 1

那么您要连接的服务器有限制吗？在这种情况下，您无论如何都无法上传？

Answer 2

for (int i = 0; i < files.Length; i++)是问题所在。

当我在C＃中通过HttpWebRequest上传大文件时，我得到Stream太长异常

2 个答案: