.net zip壓縮包裝類

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ConsoleWSTest
{
    public class ZipUtil
    {  /// <summary>
        /// 壓縮
        /// </summary>
        /// <param name="param"></param>
        /// <returns></returns>
        public static string Compress(string param)
        {
            byte[] data = System.Text.Encoding.UTF8.GetBytes(param);
            MemoryStream ms = new MemoryStream();
            Stream stream = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(ms);
            try
            {
                stream.Write(data, 0, data.Length);
            }
            finally
            {
                stream.Close();
                ms.Close();
            }
            return Convert.ToBase64String(ms.ToArray());
        }


        /// <summary>
        /// 解壓
        /// </summary>
        /// <param name="param"></param>
        /// <returns></returns>
        public static string Decompress(string param)
        {
            string commonString = "";
            byte[] buffer = Convert.FromBase64String(param);
            MemoryStream ms = new MemoryStream(buffer);
            Stream sm = new ICSharpCode.SharpZipLib.BZip2.BZip2InputStream(ms);
            //這裏要指明要讀入的格式，要不就有亂碼
            StreamReader reader = new StreamReader(sm, System.Text.Encoding.UTF8);
            try
            {
                commonString = reader.ReadToEnd();
            }
            finally
            {
                sm.Close();
                ms.Close();
            }
            return commonString;
        }
    }
}

ICSharpCode.SharpZipLib.dll下載地址：http://download.csdn.net/detail/config_man/6611855