提取CSV压缩文件 [英] extract csv zip file

问题描述

你好，

尝试解压缩zip文件时出现问题.
我的代码如下.

Hello,

I have a problem when trying to extract the zip file.
my code is below.

FileStream writeStream = new FileStream("test.csv.zip", FileMode.Create);
                int Length = 2048;
                int i = (int)fileSize / 2048 + 1;
                int j = 0;
                Byte[] buffer = new Byte[Length];
                int bytesRead = responseStream.Read(buffer, 0, Length);
                while (bytesRead > 0)
                {
                    writeStream.Write(buffer, 0, bytesRead);
                    bytesRead = responseStream.Read(buffer, 0, Length);
                }
                writeStream.Close();
                response.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            param par = p;
            string url = string.Empty; 
            string TimeLeft = string.Empty;
            string writeLine = string.Empty;
            DateTime date = DateTime.Now.AddDays(par.days);
            string find = date.Month.ToString() + "/" + date.Day.ToString() + "/" + date.Year.ToString();
            using (Ionic.Zip.ZipFile zip = Ionic.Zip.ZipFile.Read("test.csv.zip"))
            {
                zip.ExtractAll("temp", Ionic.Zip.ExtractExistingFileAction.OverwriteSilently);
                
            }

Error:- bad read of entry test.csv from compressed archive.

虽然zip文件中有数据，但是如果我手动提取数据，则会得到数据，但是使用此代码，我会报错.

您能告诉我我在哪里犯错或解决方法吗?

谢谢和问候！
Kuldeep Dwivedi

Although zip file have data If I extract manually I get the data but with this code I am getting error .

Can you please tell me where I did mistake or the solution.

Thanks and Regards!
Kuldeep Dwivedi

推荐答案

由于问题的根源尚不清楚，请尝试首先确定该问题:

• 是zip文件吗?
• 是您的wget代码吗?
• 是文件系统缓存(存储为文件并立即再次读取可能是文件系统缓存问题)吗? )?
• 是您的解压缩呼叫吗?
• ...?

Since the source of the problem is unclear, try to identify that first:

• is it the zip file?
• is it your wget code?
• is it the file system caching (stored as file and immediately read again may fall into file system caching problems)?
• is it your unzip call?
• ...?

1. 将zip文件存储到文件系统中，并通过文件资源管理器ZIP.exe，RAR，exe，7z.exe或任何其他解压缩程序将其提取
2. 如果成功1.如果没有成功，则解压缩调用似乎有问题
7. 尝试通过其他方式(不在您自己的情况下)获取文件，或者该文件已损坏或您的手工wget损坏了.程序(wget，ftp，...)并将其解压缩到外部(请参阅2.)

1. store the zip file to the file system and extract it by the file explorer, ZIP.exe, RAR,exe, 7z.exe, or any other unzipper
2. if 1. was successful, the ionic unzipper call seems to be problematic
3. if 1. was unsuccessful, either the file is corrupt or your hand crafted wget is broken
4. try to acquire the file by other means, outside of your program (wget, ftp, ...) and unzip it with outside as well (see 2.)

顺便说一句:您只提供一半的代码.没有机会检查您的wget代码可能有什么问题.

BTW: you provide only half of the code. No chance to check what might be wrong with your wget code.

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