/// <summary>
/// 替换文件名
/// </summary>
/// <param name="BaseOpr"></param>
/// <param name="filename"></param>
/// <param name="stream"></param>
/// <returns></returns>
public ZipFileOpr ReplaceFiles(ZipFileOpr BaseOpr, string filename, Stream stream)
{
string filenameLower = filename;
if (BaseOpr.ZipDictionary.ContainsKey(filenameLower))
{
BaseOpr.ZipDictionary.Remove(filenameLower);
BaseOpr.ZipDictionary.Add(filenameLower, stream);
}
return(BaseOpr);
}
/// <summary>
/// 解压所有的文件
/// </summary>
/// <returns></returns>
public ZipFileOpr ZiptoFiles()
{
ZipInputStream s = new ZipInputStream(new FileStream(filepath, FileMode.Open));
ZipEntry fileEntry;
ZipFileOpr tmpzip = new ZipFileOpr();
while ((fileEntry = s.GetNextEntry()) != null)
{
MemoryStream tmpstream = new MemoryStream();
int size = (int)fileEntry.Size;
byte[] buffer = new byte[size];
size = s.Read(buffer, 0, size);
tmpstream.Write(buffer, 0, size);
tmpzip.ZipDictionary.Add(Path.GetFileName(fileEntry.Name), tmpstream);
}
s.Close();
return(tmpzip);
}
public Stream FilesToZip(ZipFileOpr BaseOpr)
{
MemoryStream stream = new MemoryStream();
ZipOutputStream s = new ZipOutputStream(stream);
s.UseZip64 = UseZip64.Off;
foreach (KeyValuePair <string, Stream> item in BaseOpr.ZipDictionary)
{
s.SetLevel(-1);//设置压缩等级
ZipEntry fileEntry = new ZipEntry(item.Key);
//fileEntry.Name = item.Key;
Stream zipstream = item.Value;
fileEntry.DateTime = DateTime.Now;
s.PutNextEntry(fileEntry);
s.Write(((MemoryStream)zipstream).ToArray(), 0, (int)zipstream.Length);
}
s.CloseEntry();
s.Finish();
s.Close();
return(stream);
}
