解压缩
/// <summary> /// 压缩文件或者文件夹 /// </summary>
/// <param name="_depositPath">压缩后文件的存放路径 如C:\\windows\abc.zip</param>
/// <returns></returns>
public bool CompressionZip(string _depositPath)
{
bool result = true;
FileStream fs = null;
try
{
ZipOutputStream ComStream = new ZipOutputStream(File.Create(_depositPath));
ComStream.SetLevel(9); //压缩等级
foreach (string path in AbsolutePaths)
{
//如果是目录
if (Directory.Exists(path))
{
ZipFloder(path, ComStream, path);
}
else if (File.Exists(path))//如果是文件
{
fs = File.OpenRead(path);
byte[] bts = new byte[fs.Length];
fs.Read(bts, 0, bts.Length);
ZipEntry ze = new ZipEntry(new FileInfo(path).Name);
ComStream.PutNextEntry(ze); //为压缩文件流提供一个容器
ComStream.Write(bts, 0, bts.Length); //写入字节
} }
ComStream.Finish(); // 结束压缩
ComStream.Close();
}
catch (Exception ex)
{
if (fs != null)
{
fs.Close();
}
errorMsg = ex.Message;
result = false;
}
return result;
}
//压缩文件夹
private void ZipFloder(string _OfloderPath, ZipOutputStream zos, string _floderPath)
{
foreach (FileSystemInfo item in new DirectoryInfo(_floderPath).GetFileSystemInfos())
{
if (Directory.Exists(item.FullName))
{
ZipFloder(_OfloderPath, zos, item.FullName);
}
else if (File.Exists(item.FullName))//如果是文件
{
DirectoryInfo ODir = new DirectoryInfo(_OfloderPath);
string fullName2 = new FileInfo(item.FullName).FullName;
string path = ODir.Name + fullName2.Substring(ODir.FullName.Length, fullName2.Length - ODir.FullName.Length);//获取相对目录
FileStream fs = File.OpenRead(fullName2);
byte[] bts = new byte[fs.Length];
fs.Read(bts, 0, bts.Length);
ZipEntry ze = new ZipEntry(path);
zos.PutNextEntry(ze); //为压缩文件流提供一个容器
zos.Write(bts, 0, bts.Length); //写入字节
}
}
}
