使用asp.net压缩和解压缩文件 [英] Zip and unzip files using asp.net

问题描述

您好..我必须编写代码来解压缩asp.net Web应用程序中已经压缩的文件夹(.zip文件).请帮助我.

Hello.. I have to write code for unzipping the already zipped folder(.zip file) in asp.net web application. Please Help me.

推荐答案

首先，您必须找到压缩文件的格式，例如.zip或rar.

并解压缩看看

First, you have to find the format of the zipped file, say .zip or rar.

And to unzip Have a look

您可以使用此功能

公共无效ExtractArchive(字符串zipFilename，字符串ExtractDir)
{
int重做= 1;
ZipInputStream MyZipInputStream =默认值(ZipInputStream);
FileStream MyFileStream =默认值(FileStream);
MyZipInputStream =新的ZipInputStream(新的FileStream(zipFilename，FileMode.Open，FileAccess.Read));
ZipEntry MyZipEntry = MyZipInputStream.GetNextEntry();
Directory.CreateDirectory(ExtractDir);
while(((MyZipEntry！= null))
{
如果((MyZipEntry.IsDirectory))
{
Directory.CreateDirectory(ExtractDir +"\\" + MyZipEntry.Name);
}
其他
{
如果(！Directory.Exists(ExtractDir +"\\" + Path.GetDirectoryName(MyZipEntry.Name)))
{
Directory.CreateDirectory(ExtractDir +"\\" + Path.GetDirectoryName(MyZipEntry.Name));
}
MyFileStream =新的FileStream(ExtractDir +"\\" + MyZipEntry.Name，FileMode.OpenOrCreate，FileAccess.Write);
int count = 0;
byte []缓冲区=新的byte [4097];
count = MyZipInputStream.Read(buffer，0，4096);
一会儿(count> 0)
{
MyFileStream.Write(buffer，0，count);
count = MyZipInputStream.Read(buffer，0，4096);
}
MyFileStream.Close();
}
试试
{
MyZipEntry = MyZipInputStream.GetNextEntry();
}
catch(ex ex例外)
{
MyZipEntry = null;
}
}
如果((MyZipInputStream！= null))
MyZipInputStream.Close();
如果((MyFileStream！= null))
MyFileStream.Close();
}

Hi,
you can use this function

public void ExtractArchive(string zipFilename, string ExtractDir)
{
int Redo = 1;
ZipInputStream MyZipInputStream = default(ZipInputStream);
FileStream MyFileStream = default(FileStream);
MyZipInputStream = new ZipInputStream(new FileStream(zipFilename, FileMode.Open, FileAccess.Read));
ZipEntry MyZipEntry = MyZipInputStream.GetNextEntry();
Directory.CreateDirectory(ExtractDir);
while ((MyZipEntry != null))
{
if ((MyZipEntry.IsDirectory))
{
Directory.CreateDirectory(ExtractDir + "\\" + MyZipEntry.Name);
}
else
{
if (!Directory.Exists(ExtractDir + "\\" + Path.GetDirectoryName(MyZipEntry.Name)))
{
Directory.CreateDirectory(ExtractDir + "\\" + Path.GetDirectoryName(MyZipEntry.Name));
}
MyFileStream = new FileStream(ExtractDir + "\\" + MyZipEntry.Name, FileMode.OpenOrCreate, FileAccess.Write);
int count = 0;
byte[] buffer = new byte[4097];
count = MyZipInputStream.Read(buffer, 0, 4096);
while (count > 0)
{
MyFileStream.Write(buffer, 0, count);
count = MyZipInputStream.Read(buffer, 0, 4096);
}
MyFileStream.Close();
}
try
{
MyZipEntry = MyZipInputStream.GetNextEntry();
}
catch (Exception ex)
{
MyZipEntry = null;
}
}
if ((MyZipInputStream != null))
MyZipInputStream.Close();
if ((MyFileStream != null))
MyFileStream.Close();
}

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