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为什么文件流向ftpWebRequest馈送数据而不是memoryStream?

ftpwebrequest c#

Chris Hayes · 技术社区 · 15 年前

我在这里使用的是msdn示例: http://msdn.microsoft.com/en-us/library/system.net.ftpwebrequest.aspx

我将文件流更改为memorystream,但它不读取字节

当我把它改回文件流时,它可以正常工作。

有什么线索吗?

谢谢

        CompressMemoryStream();
        Stream requestStream = _request.EndGetRequestStream(ar);
        const int bufferLength = 2048;
        byte[] buffer = new byte[bufferLength];
        int count = 0;
        int readBytes = 0;

        do
        {
            //MemoryStream _compressedOutStream 
            //is created/filled by 'CompressMemoryStream()'
            readBytes = _compressedOutStream.Read(buffer, 0, bufferLength);
            requestStream.Write(buffer, 0, readBytes);
            count += readBytes;
        }
        while (readBytes != 0);
        requestStream.Close();
        state.Request.BeginGetResponse(
            new AsyncCallback(EndGetResponseCallback),
            state
        );