public static void DecompressionAsyn(string inFile, string outFile, unzipProgressDelegate progress)
{
unzipDecompressionDelegate mydelegate = new unzipDecompressionDelegate(Decompress);
IAsyncResult result = mydelegate.BeginInvoke(inFile, outFile, progress, AsyncCallbackMethod, mydelegate);
}
/// <summary>
/// 解压缩
/// </summary>
/// <param name="sourceFile">源文件</param>
/// <param name="targetPath">目标路经</param>
public static bool Decompress(string sourceFile, string targetPath, unzipProgressDelegate deleg)
{
errorMsg = "";
long zipFileCount = 0;
using (ZipFile zip = new ZipFile(sourceFile))
{
zipFileCount = zip.Count;
zip.Close();
}
if (!File.Exists(sourceFile))
{
throw new FileNotFoundException(string.Format("未能找到文件 '{0}' ", sourceFile));
}
if (!Directory.Exists(targetPath))
{
Directory.CreateDirectory(targetPath);
}
using (ZipInputStream s = new ZipInputStream(File.OpenRead(sourceFile)))
{
int unZipCount = 0;
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
try
{
string directorName = Path.Combine(targetPath, Path.GetDirectoryName(theEntry.Name));
string fileName = directorName + "/" + Path.GetFileName(theEntry.Name);
if (File.Exists(fileName))
{
File.Delete(fileName);
}
// 创建目录
if (Directory.Exists(directorName) == false && directorName.Length > 0)
{
Directory.CreateDirectory(directorName);
}
if (fileName != string.Empty)
{
using (FileStream streamWriter = File.Create(fileName))
{
int size = 4096;
byte[] data = new byte[4 * 1024];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
//deleg((float)((double)s.Position / s.Length));
}
streamWriter.Close();
unZipCount++;
}
}
if (deleg != null)
{
deleg((float)((float)unZipCount / (float)zipFileCount));
}
}
catch (Exception ex)
{
errorMsg = ex.Message;
return(false);
}
}
}
return(true);
}
