我将url放在浏览器的地址栏中,它将zip文件下载到HD。压缩文件的大小为386字节,写在其属性中。

当我使用UnZipFiles方法提取文件时-它可以工作。
但是,我想下载程序化并将其提取到内存中。我使用GetResultFromServer方法获取压缩内容。如标题所示,内容的大小与保存在HD上的压缩文件的大小相同:

content-disposition: attachment; filename=emaillog-xml.zip
Content-Length: 386
Cache-Control: private
Content-Type: application/zip
Date: Mon, 10 Sep 2012 08:28:28 GMT
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET


我的问题是如何提取GetResultFromServer返回的内容?
我尝试了以下方法:

var ms = new MemoryStream(Encoding.Unicode.GetBytes(res))
var s = new ZipInputStream(ms);


但我得到Unable to read from this stream

更新

我尝试了var zipStream = new System.IO.Compression.GZipStream(response.GetResponseStream(), CompressionMode.Decompress)但出现The magic number in GZip header is not correct错误



private string GetResultFromServer(ElasticLogParams elasticLogParams)
{
    var webRequest = (HttpWebRequest)WebRequest.Create(url);
    var response = webRequest.GetResponse();

    using (var reader = new StreamReader(response.GetResponseStream()))
    {
        var res = reader.ReadToEnd();
        var headers = response.Headers.ToString();

        return res;
    }
}

public static void UnZipFiles(string zippedFilePath, Stream stream = null)
{
    var s = new ZipInputStream(stream ?? File.OpenRead(zippedFilePath));

    ZipEntry theEntry;
    while ((theEntry = s.GetNextEntry()) != null)
    {
        using (var streamWriter = File.Create(@"D:\extractedXML.xml"))
        {
            var size = 2048;
            var data = new byte[size];
            while (true)
            {
                size = s.Read(data, 0, size);
                if (size > 0)
                {
                    streamWriter.Write(data, 0, size);
                }
                else
                {
                    break;
                }
            }
            streamWriter.Close();
        }
    }
    s.Close();
}

最佳答案

试一下:

var response = webRequest.GetResponse() as HttpWebResponse;
var stream = response.GetResponseStream();
var s = new ZipInputStream(stream);


我相信您非常亲密,并且使用的是正确的方法-您可以使用this article进行备份-它们的代码非常相似。

07-24 09:51
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