时间:2013-12-5 作者:悬浮的青春 分类: .net相关
引用第三方dll实现解压zip格式的文件
引用的dll是using ICSharpCode.SharpZipLib.Zip;
网上就有。想用的可以搜索下。
直接贴代码吧。下面就是。
/// <summary>
/// 功能:解压zip格式的文件
/// </summary>
/// <param name="zipFilePath"></param>
/// <param name="unZipDir"></param>
/// <param name="err"></param>
private bool UnZipFile(string zipFilePath, string unZipDir, out string err)
{
err = "";
if (zipFilePath == string.Empty)
{
err = "压缩文件不能为空!";
return false;
}
if (!File.Exists(zipFilePath))
{
err = "压缩文件不存在!";
return false;
}
//解压文件夹为空时默认与压缩文件同一级目录下,跟压缩文件同名的文件夹
if (unZipDir == string.Empty)
unZipDir = zipFilePath.Replace(System.IO.Path.GetFileName(zipFilePath), System.IO.Path.GetFileNameWithoutExtension(zipFilePath));
if (!unZipDir.EndsWith("//"))
unZipDir += "//";
if (!Directory.Exists(unZipDir))
Directory.CreateDirectory(unZipDir);
try
{
using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
{
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = System.IO.Path.GetDirectoryName(theEntry.Name);
string fileName = System.IO.Path.GetFileName(theEntry.Name);
if (directoryName.Length > 0)
{
Directory.CreateDirectory(unZipDir + directoryName);
}
if (!directoryName.EndsWith("//"))
directoryName += "//";
if (fileName != String.Empty)
{
using (System.IO.FileStream streamWriter = File.Create(unZipDir + theEntry.Name))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}//while
}
}
catch (Exception ex)
{
err = ex.Message;
return false;
}
return true;
}