使用GZip压缩和解压缩示例

liudongbei

byte[] data;

//读取文件并压缩
using (FileStream fileStream = new FileStream(filePath1, FileMode.Open, FileAccess.Read))
{
using (MemoryStream ms = new MemoryStream())
{
  
  using (System.IO.Compression.GZipStream gzip = new System.IO.Compression.GZipStream(ms, System.IO.Compression.CompressionMode.Compress))
  {
   fileStream.CopyTo(gzip);                                    
  }
  data = ms.ToArray();
}
}

//解压缩并写本地文件
FileInfo fi = new FileInfo(filePath2);            
using (System.IO.FileStream fs = fi.Create())            
{
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
  ms.Write(data, 0, data.File.Length);
  ms.Seek(0, System.IO.SeekOrigin.Begin);
  using (System.IO.Compression.GZipStream gzip = new System.IO.Compression.GZipStream(ms, System.IO.Compression.CompressionMode.Decompress))
  {
   gzip.CopyTo(fs);
  }
}   
}

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