将byte []导出为损坏的.zip

Question

我正在尝试将.NET 2.0集成到MS SQL Server 2008中。我调用了一个API，我应该收到一个.zip作为响应。我将响应存储到Stream中，我想将此文件导出到物理.zip文件。我尝试使用C＃和SQL（BCB或OLE）导出文件，并导致文件损坏。所以，我相信我在制作流时做错了。

C＃代码如下：

private static byte[] GetStreamFileResult(Cookie loginCookie, Guid fileGuid, String baseUri)
    {
        byte[] output = null;
        //String result = null;
        string url = "some url"

        CookieContainer cookies = new CookieContainer();
        cookies.Add(new Uri(url), loginCookie);
        WebRequest request = WebRequest.Create(url);
        (request as HttpWebRequest).CookieContainer = cookies;
        WebResponse response = request.GetResponse();
        HttpWebResponse resp = response as HttpWebResponse;
        Stream dataStream = response.GetResponseStream();

        using (MemoryStream ms = new MemoryStream())
        {
            CopyStream(dataStream, ms);
            output = ms.ToArray();
        }

        dataStream.Close();
        response.Close();
        return output;
    }

导出zip的C＃代码如下：

 File.WriteAllBytes("C:\\folder\\t.zip", stream); // Requires System.IO

从流到流的副本：

public static void CopyStream(Stream input, Stream output)
    {
        if (input != null)
        {
            using (StreamReader reader = new StreamReader(input))
            using (StreamWriter writer = new StreamWriter(output))
            {
                writer.Write(reader.ReadToEnd());
            }
        }                
    }

Answer 1

你的CopyStream坏了。你需要谈二进制。您当前正在将二进制zip数据视为文本：

byte[] buffer = new byte[2048];
int bytesRead;
while((bytesRead = input.Read(buffer, 0, buffer.Length)) > 0) {
    output.Write(buffer, 0, bytesRead);
}