C#中实现压缩文件和文件夹

 

【【【【C#压缩文件】】】】
方法1：
	//【filepath想要压缩文件的地址】
	//【zippath输出压缩文件的地址】
	private void GetFileToZip(string filepath,string zippath)
	{

	    FileStream fs = File.OpenRead(filepath);
            byte[] buffer = new byte[fs.Length];
            fs.Read(buffer, 0, buffer.Length);
            fs.Close();

            FileStream ZipFile = File.Create(zippath);
            ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
            ZipEntry ZipEntry = new ZipEntry(输出的文件名称);
            ZipStream.PutNextEntry(ZipEntry);
            ZipStream.SetLevel(6);

            ZipStream.Write(buffer, 0, buffer.Length);
            ZipStream.Finish();
            ZipStream.Close();
	}
方法2：
	 private void FileToZip(string path,string address) 
        {
            string name = openFileDialog1.FileName.Substring(openFileDialog1.FileName.LastIndexOf("\\")+1);
            FileStream StreamToZip = new FileStream(path, FileMode.Open, FileAccess.Read);
            FileStream ZipFile = File.Create(address);
            ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
            //压缩文件
            ZipEntry ZipEntry = new ZipEntry(name);
            ZipStream.PutNextEntry(ZipEntry);
            ZipStream.SetLevel(6);                                       
            byte[] buffer = new byte[StreamToZip.Length];
            StreamToZip.Read(buffer, 0, Convert.ToInt32(StreamToZip.Length));
            ZipStream.Write(buffer, 0, Convert.ToInt32(StreamToZip.Length));
            ZipStream.Finish();
            ZipStream.Close();
            StreamToZip.Close();

        }
【【【【【【C#解压文件】】】】】】
	private void ZipToFile(string path, string addres)
        {
            ZipInputStream s = new ZipInputStream(File.OpenRead(path));
            ZipEntry fileEntry; 
            while ((fileEntry = s.GetNextEntry()) != null)
            {
                string filename = Path.GetFileName(fileEntry.Name);
                if (filename != "")
                {
                    filename = addres + "\\" + filename;
                    FileStream streamWriter = File.Create(filename);
                    int size = 2048;
                    byte[] buffer = new byte[s.length];

                    size = s.Read(buffer, 0, size);
                    streamWriter.Write(buffer, 0, size);
                    streamWriter.Close();                   
                }
            }
            s.Close();
        }
【【【【【【C#压缩目录】】】】】】
方法1：
	//【arg[0]要压缩的目录】
	//【arg[1]输出的压缩文件】
	   private void DirectoryToZip(string path, string address)
           {
           	 //获取当前文件夹中所有的文件
            	string[] filenames = Directory.GetFiles(path);  
           	 Crc32 crc = new Crc32();
           	 //创建输出文件(ZIP格式的文件)
           	 ZipOutputStream zos = new ZipOutputStream(File.Create(address));
          	  zos.SetLevel(6);
           	 //遍历所有的文件
           	 foreach (string name in filenames)
           	 {
            	    FileStream fs = File.OpenRead(name);
             	   byte[] buffer = new byte[fs.Length];
             	  //读取文件
             	   fs.Read(buffer, 0, Convert.ToInt32(fs.Length));
             	   //获取文件的文件名称和后缀名
              	  string file = Path.GetFileName(name);
              	  //输出文件的名称
              	  ZipEntry entry = new ZipEntry(file);                
              	  crc.Reset();
              	  crc.Update(buffer);
               	 entry.Crc = crc.Value;
               	 zos.PutNextEntry(entry);
               	 zos.Write(buffer, 0, Convert.ToInt32(fs.Length));
               	 fs.Close();
          	  }
          	  zos.Finish();
         	   zos.Close();
     	    }



【【【【【【【【C#读取压缩文件(将压缩文件转换为二进制)】】】】】】】】
	private void GetZipToByte(){
	    string path = @"C:\Documents and Settings\Administrator\桌面\文件.rar";
            FileStream fs = new FileStream(path, FileMode.Open);
            bytes = new byte[fs.Length];
            int count = Convert.ToInt32(fs.Length);
            fs.Read(bytes, 0, count);
	}
【【【【【【【【C#将二进制转换为压缩文件】】】】】】】】
	private void GetByteToZip()
	{
	    string path = @"F:\dom.rar";//压缩文件的地址
	    File.WriteAllBytes(path, bytes);
	}