/**/
/// <summary>
/// 解压字符串
/// </summary>
/// <param name="SourceString">需要被解压的字符串</param>
/// <returns></returns>
public static string DecompressString(string SourceString)
{
byte[] byteSource = Convert.FromBase64String(SourceString);
byte[] byteDecompress = ZlibCompress.DecompressBytes(byteSource);
if (byteDecompress != null)
{
return(System.Text.Encoding.UTF8.GetString(byteDecompress));
}
else
{
return(null);
}
}
/**/
/// <summary>
/// 解压流
/// </summary>
/// <param name="SourceStream">需要被解缩的流数据</param>
/// <returns></returns>
public static Stream DecompressStream(Stream SourceStream)
{
try
{
MemoryStream stmOutput = new MemoryStream();
ZOutputStream outZStream = new ZOutputStream(stmOutput);
CopyStream(SourceStream, outZStream);
outZStream.finish();
return(stmOutput);
}
catch
{
return(null);
}
}
/**/
/// <summary>
/// 压缩字符串
/// </summary>
/// <param name="SourceString">需要被压缩的字符串</param>
/// <returns></returns>
public static string CompressString(string SourceString)
{
byte[] byteSource = System.Text.Encoding.UTF8.GetBytes(SourceString);
byte[] byteCompress = ZlibCompress.CompressBytes(byteSource);
if (byteCompress != null)
{
return(Convert.ToBase64String(byteCompress));
}
else
{
return(null);
}
}
/**/
/// <summary>
/// 解压文件
/// </summary>
/// <param name="CompressedFileName">被解压文件名（必须输入绝对路径）</param>
/// <param name="DecompressFileName">解压后保存的文件名（必须输入绝对路径）</param>
/// <returns></returns>
public static bool DecompressFile(string CompressedFileName, string DecompressFileName)
{
bool bResult = false;
FileStream outFileStream = new FileStream(DecompressFileName, FileMode.Create);
ZOutputStream outZStream = new ZOutputStream(outFileStream);
FileStream inFileStream = new FileStream(CompressedFileName, FileMode.Open);
try
{
CopyStream(inFileStream, outZStream);
bResult = true;
}
catch
{
bResult = false;
}
finally
{
outZStream.Close();
outFileStream.Close();
inFileStream.Close();
}
return(bResult);
}
/**/
/// <summary>
/// 压缩byte数组数据
/// </summary>
/// <param name="SourceByte">需要被压缩的Byte数组数据</param>
/// <returns></returns>
public static byte[] CompressBytes(byte[] SourceByte)
{
try
{
MemoryStream stmInput = new MemoryStream(SourceByte);
Stream stmOutPut = ZlibCompress.CompressStream(stmInput);
byte[] bytOutPut = new byte[stmOutPut.Length];
stmOutPut.Position = 0;
stmOutPut.Read(bytOutPut, 0, bytOutPut.Length);
return(bytOutPut);
}
catch
{
return(null);
}
}
