用SharpZip解压/压缩文件

最新推荐文章于 2025-05-05 21:39:37 发布
iteye_11002
最新推荐文章于 2025-05-05 21:39:37 发布
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文章标签： runtime
 
  usingSystem; 
 usingSystem.IO; 
 usingSystem.Text; 
 usingSystem.Collections; 
 usingSystem.Diagnostics; 
 usingSystem.Runtime.Serialization.Formatters.Binary; 
 usingICSharpCode.SharpZipLib; 
 usingICSharpCode.SharpZipLib.Checksums; 
 usingICSharpCode.SharpZipLib.Zip; 
 usingICSharpCode.SharpZipLib.GZip; 
 usingICSharpCode.SharpZipLib.BZip2; 
 usingICSharpCode.SharpZipLib.Zip.Compression; 
 usingICSharpCode.SharpZipLib.Zip.Compression.Streams; 
 ///<summary> 
 ///Zip文件压缩、解压 
 ///</summary> 
 publicclassZipFile 
{
 ///<summary> 
 ///解压类型 
 ///</summary> 
 publicenumUnzipType 
{
 ///<summary> 
 ///解压到当前压缩文件所在的目录 
 ///</summary> 
ToCurrentDirctory,
 ///<summary> 
 ///解压到与压缩文件名相同的新的目录，如果有多个文件，将为每个文件创建一个目录 
 ///</summary> 
ToNewDirctory
}
 ///<summary> 
 ///压缩文件,默认目录为当前目录，文件名为当前目录名，压缩级别为6 
 ///</summary> 
 ///<paramname="fileOrDirectory">要压缩的文件或文件夹</param> 
 publicvoidZip(paramsstring[]fileOrDirectory) 
{
Zip(6,fileOrDirectory);
}
 ///<summary> 
 ///压缩文件,默认目录为当前目录，文件名为当前目录名 
 ///</summary> 
 ///<paramname="zipLevel">压缩的级别</param> 
 ///<paramname="fileOrDirectory">要压缩的文件或文件夹</param> 
 publicvoidZip(intzipLevel,paramsstring[]fileOrDirectory) 
{
 if(fileOrDirectory==null) 
 return; 
 elseif(fileOrDirectory.Length<1) 
 return; 
 else 
{
 stringstr=fileOrDirectory[0]; 
 if(str.EndsWith("//")) 
str=str.Substring(0,str.Length-1);
 str+=".zip"; 
Zip(str,zipLevel,fileOrDirectory);
}
}
 ///<summary> 
 ///压缩文件,默认目录为当前目录 
 ///</summary> 
 ///<paramname="zipedFileName">压缩后的文件</param> 
 ///<paramname="zipLevel">压缩的级别</param> 
 ///<paramname="fileOrDirectory">要压缩的文件或文件夹</param> 
 publicvoidZip(stringzipedFileName,intzipLevel,paramsstring[]fileOrDirectory) 
{
 if(fileOrDirectory==null) 
 return; 
 elseif(fileOrDirectory.Length<1) 
 return; 
 else 
{
 stringstr=fileOrDirectory[0]; 
 if(str.EndsWith("//")) 
str=str.Substring(0,str.Length-1);
 str=str.Substring(0,str.LastIndexOf("//")); 
Zip(zipedFileName,str,zipLevel,fileOrDirectory);
}
}
 ///<summary> 
 ///压缩文件 
 ///</summary> 
 ///<paramname="zipedFileName">压缩后的文件</param> 
 ///<paramname="zipLevel">压缩的级别</param> 
 ///<paramname="currentDirectory">当前所处目录</param> 
 ///<paramname="fileOrDirectory">要压缩的文件或文件夹</param> 
 publicvoidZip(stringzipedFileName,stringcurrentDirectory,intzipLevel,paramsstring[]fileOrDirectory) 
{
 ArrayListAllFiles=newArrayList(); 
 //获取所有文件 
 if(fileOrDirectory!=null) 
{
 for(inti=0;i<fileOrDirectory.Length;i++) 
{
 if(File.Exists(fileOrDirectory[i])) 
AllFiles.Add(fileOrDirectory[i]);
 elseif(Directory.Exists(fileOrDirectory[i])) 
GetDirectoryFile(fileOrDirectory[i],AllFiles);
}
}
 if(AllFiles.Count<1) 
 return; 
 ZipOutputStreamzipedStream=newZipOutputStream(File.Create(zipedFileName)); 
zipedStream.SetLevel(zipLevel);
 for(inti=0;i<AllFiles.Count;i++) 
{
 stringfile=AllFiles[i].ToString(); 
FileStreamfs;
 //打开要压缩的文件 
 try 
{
fs=File.OpenRead(file);
}
 catch 
{
 continue; 
}
 try 
{
 byte[]buffer=newbyte[fs.Length]; 
fs.Read(buffer,0,buffer.Length);
 //新建一个entry 
 stringfileName=file.Replace(currentDirectory,""); 
 if(fileName.StartsWith("//")) 
fileName=fileName.Substring(1);
 ZipEntryentry=newZipEntry(fileName); 
entry.DateTime=DateTime.Now;
 //保存到zip流 
fs.Close();
zipedStream.PutNextEntry(entry);
zipedStream.Write(buffer,0,buffer.Length);
}
 catch 
{
}
 finally 
{
fs.Close();
fs.Dispose();
}
}
zipedStream.Finish();
zipedStream.Close();
}
 ///<summary> 
 ///压缩文件夹 
 ///</summary> 
 ///<paramname="curretnDirectory">当前所在的文件夹</param> 
 publicvoidZipDirectory(stringcurretnDirectory) 
{
 if(curretnDirectory==null) 
 return; 
 stringdir=curretnDirectory; 
 if(dir.EndsWith("//")) 
dir=dir.Substring(0,dir.Length-1);
 stringfile=dir.Substring(dir.LastIndexOf("//")+1)+".zip"; 
 dir+="//"+file; 
Zip(dir,6,curretnDirectory);
}
 ///<summary> 
 ///压缩文件夹 
 ///</summary> 
 ///<paramname="curretnDirectory">当前所在的文件夹</param> 
 publicvoidZipDirectory(stringcurretnDirectory,intzipLevel) 
{
 if(curretnDirectory==null) 
 return; 
 stringdir=curretnDirectory; 
 if(dir.EndsWith("//")) 
dir=dir.Substring(0,dir.Length-1);
 dir+=".zip"; 
Zip(dir,zipLevel,curretnDirectory);
}
 //递归获取一个目录下的所有文件 
 privatevoidGetDirectoryFile(stringparentDirectory,ArrayListtoStore) 
{
 string[]files=Directory.GetFiles(parentDirectory); 
 for(inti=0;i<files.Length;i++) 
toStore.Add(files[i]);
 string[]directorys=Directory.GetDirectories(parentDirectory); 
 for(inti=0;i<directorys.Length;i++) 
GetDirectoryFile(directorys[i],toStore);
}
 ///<summary> 
 ///解压文件 
 ///<paramname="type">解压类型</param> 
 ///<paramname="zipFile">要解压的文件</param> 
 publicvoidUnZip(UnzipTypetype,paramsstring[]zipFile) 
{
ZipInputStreamzipStream;
ZipEntryentry;
 for(inti=0;i<zipFile.Length;i++) 
{
 zipStream=newZipInputStream(File.OpenRead(zipFile[i])); 
 //获取目录名,并创建该目录 
 stringdirectoryName=""; 
 if(type==UnzipType.ToNewDirctory) 
 directoryName=zipFile[i].Substring(0,zipFile[i].LastIndexOf(".")); 
 else 
 directoryName=zipFile[i].Substring(0,zipFile[i].LastIndexOf("//")); 
 if(!Directory.Exists(directoryName)) 
Directory.CreateDirectory(directoryName);
 //读出每一个文件 
 while((entry=zipStream.GetNextEntry())!=null) 
{
 //获取文件名 
 stringfileName=entry.Name; 
 if(directoryName.EndsWith("//")) 
fileName=directoryName+fileName;
 else 
 fileName=directoryName+"//"+fileName; 
 if(fileName==String.Empty) 
 continue; 
 //创建一个文件 
 if(!Directory.Exists(Path.GetDirectoryName(fileName))) 
Directory.CreateDirectory(Path.GetDirectoryName(fileName));
FileStreamstreamWriter=File.Create(fileName);
 //写入文件 
 intsize=2048; 
 byte[]data=newbyte[2048]; 
 while(true) 
{
size=zipStream.Read(data,0,data.Length);
 if(size>0) 
{
streamWriter.Write(data,0,size);
}
 else 
{
 break; 
}
}
streamWriter.Close();
}
zipStream.Close();
}
}
 ///<summary> 
 ///解压文件 
 ///<paramname="zipFile">要解压的文件,默认解压到新文件夹,每个文件对应生成一个文件夹</param> 
 publicvoidUnZip(paramsstring[]zipFile) 
{
UnZip(UnzipType.ToNewDirctory,zipFile);
}
 