//public bool ffshowProcess = true;
/// <summary>
/// 将文件流写入到压缩流中
/// </summary>
/// <param name="sourceFileName"></param>
/// <param name="zipOutPutStream"></param>
/// <param name="sourceFileStream">非完整文件名</param>
/// <param name="BlockSize"></param>
/// <param name="form"></param>
private static void WriteFile(string sourceFileName, ZipOutputStream zipOutPutStream, FileStream sourceFileStream, int BlockSize, IProgressReporter progressReporter)
{
string messageInfo = "正在压缩文件\"" + sourceFileName + "\"";
sourceFileStream.Position = 0;
I3Stream.WriteStreamToStream(messageInfo, sourceFileStream, zipOutPutStream, BlockSize, progressReporter);
}
/// <summary>
/// 使用GZip方式压缩文件
/// </summary>
/// <param name="sourceFile"></param>
/// <param name="destFile"></param>
/// <param name="maxFileMBs"></param>
/// <returns></returns>
public static I3MsgInfo ZipFile(string sourceFile, string destFile, int maxFileMBs)
{
if (!File.Exists(sourceFile))
{
return(new I3MsgInfo(false, "错误：源文件不存在！文件名：" + sourceFile));
}
FileStream sourceStream = null;
FileStream destStream = null;
GZipStream zipStream = null;
try
{
try
{
sourceStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read);
if (sourceStream.Length > maxFileMBs * 1024 * 1024)
{
return(new I3MsgInfo(false, "要压缩的文件大小超过指定的最大大小" + maxFileMBs.ToString() + "M"));
}
destStream = new FileStream(destFile, FileMode.Create, FileAccess.ReadWrite, FileShare.None);
zipStream = new GZipStream(destStream, CompressionMode.Compress);
}
catch (Exception ex)
{
return(new I3MsgInfo(false, ex.Message, ex));
}
//sourceStream刚创建，从0开始
return(I3Stream.WriteStreamToStream(null, sourceStream, zipStream, 4096, null));
}
finally
{
if (zipStream != null)
{
zipStream.Close();
}
if (destStream != null)
{
destStream.Close();
}
if (sourceStream != null)
{
sourceStream.Close();
}
}
}
