压缩数据传输

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.IO;
using ICSharpCode.SharpZipLib.BZip2;
using System.Text;

namespace Common
{
    /// <summary>
    /// 压缩数据传输
    /// </summary>
    public class UnZip
    {
        public UnZip()
        {
        }

        #region 返回压缩后的字节数组
        /// <summary>
        /// 返回压缩后的字节数组
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public static byte[] Compress(byte[] data)
        {
            if (data == null || data.Length == 0)
            {
                return null;
            }

            MemoryStream inStream = new MemoryStream(data, 0, data.Length);
            MemoryStream outStream = new MemoryStream();
            BZip2.Compress(inStream, outStream,false, data.Length);

            byte[] result = outStream.ToArray();
            inStream.Close();
            outStream.Close();

            return result;
        }
        #endregion

        #region 返回解压后的字节数组
        /// <summary>
        /// 返回解压后的字节数组
        /// </summary>
        /// <param name="data">原始字节数组</param>
        /// <returns></returns>
        public static byte[] Decompress(byte[] data)
        {
            if (data == null || data.Length == 0)
            {
                return null;
            }
            MemoryStream inStream = new MemoryStream(data, 0, data.Length);
            MemoryStream outStream = new MemoryStream();
            BZip2.Decompress(inStream, outStream,false);
           
            byte[] result = outStream.ToArray();
            inStream.Close();
            outStream.Close();

            return result;
        }

        #endregion
    }
}