using System;using System.Web;using System.Web.Services;using System.Web.Services.Protocols;using System.IO;using System.Runtime.Serialization.Formatters.Binary;using System.IO.Compression;using System.Data;
using CompressDataSet;[WebService(Namespace = "http://tempuri.org/")][WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]// 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。// [System.Web.Script.Services.ScriptService]public class Service : System.Web.Services.WebService{    public klmywgSoapHeader header = new klmywgSoapHeader();    public Service () {        //如果使用设计的组件，请取消注释以下行         //InitializeComponent();     }    [WebMethod]    [SoapHeader("header")]    public string HelloWorld() {       string result= header.Validate();       if (result == "true")       {           return "Hello World";       }       else           return result;    }    private DataSet GetDataSet()    {        DataSet ds = new DataSet();        DataTable dt = new DataTable();        ds.Tables.Add(dt);        dt.Columns.Add("UserName", typeof(string));        DataRow dr = dt.NewRow();        dr["UserName"] = "UserName";        dt.Rows.Add(dr);        return ds;    }    [WebMethod(Description = "直接返回DataSetSurrogate对象，并用Binary序列化后并且ZIP压缩的字节数组")]    public byte[] GetDataSetSurrogateZipBytes()    {        DataSet ds = GetDataSet();        DataSetSurrogate dss = new DataSetSurrogate(ds);        BinaryFormatter ser = new BinaryFormatter();  //序列化对象          MemoryStream ms = new MemoryStream();  //内存流          ser.Serialize(ms, dss);        byte[] buffer = ms.ToArray();    //字节流          byte[] bufferZip = ComPress(buffer);        return bufferZip ; }
 //压缩方法 

 public byte[] ComPress(byte[] data) { try { MemoryStream ms = new MemoryStream(); Stream zipStream = null; zipStream = new GZipStream(ms, CompressionMode.Compress, true); zipStream.Write(data, 0, data.Length); zipStream.Close(); ms.Position = 0; byte[] compressed_data = http://www.mamicode.com/new byte[ms.Length]; ms.Read(compressed_data, 0, int.Parse(ms.Length.ToString())); return compressed_data; } catch { return null; } } }

       byte[] zipBuffer = service.GetDataSetSurrogateZipBytes();        byte[] buffer = UnZipClass.Decompress(zipBuffer);        BinaryFormatter ser = new BinaryFormatter();        DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate;        DataSet dataSet = dss.ConvertToDataSet();  

using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.IO;using System.IO.Compression;using System.Runtime.Serialization.Formatters.Binary;public static class UnZipClass{    public static byte[] Decompress(byte[] data)    {        try        {            MemoryStream ms = new MemoryStream(data);            Stream zipStream = null;            zipStream = new GZipStream(ms, CompressionMode.Decompress);            byte[] dc_data = http://www.mamicode.com/null;            dc_data = ExtractBytesFromStream(zipStream, data.Length);            return dc_data;        }        catch        {            return null;        }    }    public static byte[] ExtractBytesFromStream(Stream zipStream, int dataBlock)    {        byte[] data = http://www.mamicode.com/null;        int totalBytesRead = 0;        try        {            while (true)            {                Array.Resize(ref data, totalBytesRead + dataBlock + 1);                int bytesRead = zipStream.Read(data, totalBytesRead, dataBlock);                if (bytesRead == 0)                {                    break;                }                totalBytesRead += bytesRead;            }            Array.Resize(ref data, totalBytesRead);            return data;        }        catch        {            return null;        }    }}