using System;
using System.Data;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;using System.IO;
using System.IO.Compression;
using System.Data.SqlClient;
using System.Runtime.Serialization.Formatters.Binary;namespace DataSetWebService
{/// <summary>/// Service1 的摘要说明/// </summary>[WebService(Namespace = "http://tempuri.org/")][WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)][ToolboxItem(false)]public class DataSetService : System.Web.Services.WebService{[WebMethod(Description="直接返回DataSet对象")]public DataSet GetDataSet(){//http://www.dzbsoft.com  XT_TEXTstring sql = "select * from XT_TEXT";SqlConnection conn = new SqlConnection("Server=60.28.25.58;DataBase=s168593;user id=s168593;password=h0y+FeC*;");conn.Open();SqlDataAdapter dataAd = new SqlDataAdapter(sql, conn);DataSet DS = new DataSet("XT_TEXT");dataAd.Fill(DS);conn.Close();return DS;}[WebMethod(Description = "返回DataSet对象用Binary序列化后的字节数组")]public byte[] GetDataSetBytes(){DataSet DS = GetDataSet();BinaryFormatter ser = new BinaryFormatter();MemoryStream ms = new MemoryStream();ser.Serialize(ms, DS);byte[] buffer = ms.ToArray();return buffer;}[WebMethod(Description = "返回DataSetSurrogate对象用Binary序列化后的字节数组")]public byte[] GetDataSetSurrogateBytes(){DataSet DS = GetDataSet();DataSetSurrogate dss = new DataSetSurrogate(DS);BinaryFormatter ser = new BinaryFormatter();MemoryStream ms = new MemoryStream();ser.Serialize(ms, dss);byte[] buffer = ms.ToArray();return buffer;}[WebMethod(Description = "返回DataSetSurrogate对象用Binary序列化并ZIP压缩后的字节数组")]public byte[] GetDataSetSurrogateZipBytes(){DataSet DS = GetDataSet();DataSetSurrogate dss = new DataSetSurrogate(DS);BinaryFormatter ser = new BinaryFormatter();MemoryStream ms = new MemoryStream();ser.Serialize(ms, dss);byte[] buffer = ms.ToArray();byte[] Zipbuffer = Compress(buffer);return Zipbuffer;}public byte[] Compress(byte[] data){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 = new byte[ms.Length];ms.Read(compressed_data, 0, int.Parse(ms.Length.ToString()));return compressed_data;}}
}客户端调用:C/Susing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;using System.IO;
using System.IO.Compression;
using System.Data.SqlClient;
using System.Runtime.Serialization.Formatters.Binary;namespace Test
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void BindDataSet(DataSet DS){this.dataGridView1.DataSource = DS.Tables[0];}private void button1_Click(object sender, EventArgs e){com.dzbsoft.www.DataSetService ds = new Test.com.dzbsoft.www.DataSetService();DateTime dtBegin = DateTime.Now;DataSet DS = ds.GetDataSet();this.label1.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin);BindDataSet(DS);}private void button2_Click(object sender, EventArgs e){com.dzbsoft.www.DataSetService ds = new Test.com.dzbsoft.www.DataSetService();DateTime dtBegin = DateTime.Now;byte[] buffer = ds.GetDataSetBytes();DataSet DS = ds.GetDataSet();BinaryFormatter ser = new BinaryFormatter();DataSet dataset = ser.Deserialize(new MemoryStream(buffer)) as DataSet;this.label2.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin + "          " + buffer.Length.ToString());BindDataSet(DS);}private void button3_Click(object sender, EventArgs e){com.dzbsoft.www.DataSetService ds = new Test.com.dzbsoft.www.DataSetService();DateTime dtBegin = DateTime.Now;byte[] buffer = ds.GetDataSetSurrogateBytes();BinaryFormatter ser = new BinaryFormatter();DataSet DS = ds.GetDataSet();DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate;DataSet dataset = dss.ConvertToDataSet();this.label3.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin + "          " + buffer.Length.ToString());BindDataSet(DS);}private void button4_Click(object sender, EventArgs e){com.dzbsoft.www.DataSetService ds = new Test.com.dzbsoft.www.DataSetService();DateTime dtBegin = DateTime.Now;byte[] zipBuffer = ds.GetDataSetSurrogateZipBytes();byte[] buffer = UnZipClass.Decompress(zipBuffer);BinaryFormatter ser = new BinaryFormatter();DataSet DS = ds.GetDataSet();DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate;DataSet dataset = dss.ConvertToDataSet();this.label4.Text = string.Format("耗时：{0}", DateTime.Now - dtBegin + "          " + zipBuffer.Length.ToString());BindDataSet(DS);}}
}UnZipClass.csusing System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.Compression;namespace Test
{public static class UnZipClass{/// <summary>/// Decompresses the specified data./// </summary>/// <param name="data">The data.</param>/// <returns></returns>public static byte[] Decompress(byte[] data){try{MemoryStream ms = new MemoryStream(data);Stream zipStream = null;zipStream = new GZipStream(ms, CompressionMode.Decompress);byte[] dc_data = null;dc_data = EtractBytesFormStream(zipStream, data.Length);return dc_data;}catch{return null;}}public static byte[] EtractBytesFormStream(Stream zipStream, int dataBlock){try{byte[] data = null;int totalBytesRead = 0;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;}}}
}