找不到中央目录记录的末尾 [英] End of Central Directory record could not be found

问题描述

我正在使用c＃程序下载一个zip文件，并且在System.IO.Compression.ZipArchive中收到错误

I am downloading a zip file using c# program and I get the error

at System.IO.Compression.ZipArchive.ReadEndOfCentralDirectory()
   at System.IO.Compression.ZipArchive.Init(Stream stream, ZipArchiveMode mode,
Boolean leaveOpen)
   at System.IO.Compression.ZipArchive..ctor(Stream stream, ZipArchiveMode mode,
 Boolean leaveOpen, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.Open(String archiveFileName, ZipArchiveMode
mode, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.ExtractToDirectory(String sourceArchiveFileN
ame, String destinationDirectoryName, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.ExtractToDirectory(String sourceArchiveFileN
ame, String destinationDirectoryName)

这里是程序

    response = (HttpWebResponse)request.GetResponse();
    Stream ReceiveStream = response.GetResponseStream();
    byte[] buffer = new byte[1024];
    FileStream outFile = new FileStream(zipFilePath, FileMode.Create);
    int bytesRead;
    while ((bytesRead = ReceiveStream.Read(buffer, 0, buffer.Length)) != 0)
        outFile.Write(buffer, 0, bytesRead);
    outFile.Close();
    response.Close();
    try
    {
        ZipFile.ExtractToDirectory(zipFilePath, destnDirectoryName);
    }
    catch (Exception e)
    {
        Console.WriteLine(e.ToString());
        Console.ReadLine();
    }

我不理解该错误。谁能解释这个
谢谢
MR

I do not understand the error. Can anybody explain this Thanks MR

推荐答案

问题是 ZipFile 找不到表明归档已结束的代码行，因此：

The problem is ZipFile can't find the line of code that signals the end of the archive, so either:

1. 存档已损坏。

1. The archive is corrupt.

• 解决方案-存档需要修复。

这不是.zip存档。

It is not a .zip archive.

• 它可能是.rar或其他压缩类型。或者我在这里怀疑，您正在下载一个自动重定向到zip文件的html文件。


• 解决方案-必须找到使用此代码的正确档案。

• 一个多段zip文件。


• 解决方案-解压缩前先读取所有文件。

• 解决方案-检查文件属性/权限并验证文件名。

使用您喜欢的zip / unzip实用程序（7-zip，winzip等）打开文件将告诉您可能是哪种。

Opening the file with your favorite zip/unzip utility (7-zip, winzip, etc) will tell which of these it could be.

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