Web Service 性能提升方式

1、创建项目，其项目结构如下：

项目结构说明：

     DataSetWebService   为Web Service Sites ，用于提供服务；

     Test     为windows form 测试程序， 用于测试效果。

服务提供程序代码

DataSetService.asmx

<%@ WebService Language="C#" CodeBehind="DataSetService.asmx.cs" Class="DataSetWebService.DataSetService" %>

DataSetService.asmx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;

using System.IO;
using System.Data.SqlClient;
using System.IO.Compression;
using System.Data;
using System.Runtime.Serialization.Formatters.Binary;

namespace DataSetWebService
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]
    public class DataSetService : System.Web.Services.WebService
    {

        [WebMethod(Description="Directly return the dataset object.")]
        public DataSet GetDataSet()
        {
            string sql = "Select * from ShangJianData";
            SqlConnection sqlConn = new SqlConnection("Data Source=localhost;Integrated Security=SSPI;Initial Catalog=WL_Data;");
            sqlConn.Open();

            SqlDataAdapter sda = new SqlDataAdapter(sql, sqlConn);
            DataSet ds = new DataSet("ShangJianData");
            sda.Fill(ds);
            sqlConn.Close();
            return ds;
        }

        [WebMethod(Description = "Binary formatter.")]
        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 = "Dataset Surrogate formatter.")]
        public byte[] GetDataSetSurrogateBytes()
        {
            DataSet ds = GetDataSet();
            DataSetSurrogate dss = new DataSetSurrogate(ds);
            BinaryFormatter ser = new BinaryFormatter();
            MemoryStream ms = new MemoryStream();
            ser.Serialize(ms, dss);
            byte[] bytes = ms.ToArray();
            return bytes;
        }


        [WebMethod(Description = "Dataset Surrogate formatter and then compress array.")]
        public byte[] GetDataSetSurrogateZipBytes()
        {
            DataSet ds = GetDataSet();
            DataSetSurrogate dss = new DataSetSurrogate(ds);
            BinaryFormatter ser = new BinaryFormatter();
            MemoryStream ms = new MemoryStream();
            ser.Serialize(ms, dss);
            byte[] bytes = ms.ToArray();
            byte[] Zipbuffer = Compress(bytes);

            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;
        }

    }
}

 客户端测试程序代码如下：

Form.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using System.IO;
using System.Data.SqlClient;
using System.IO.Compression;
using System.Data;
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.DataSetServiceSoapClient cdw = new com.dzbsoft.www.DataSetServiceSoapClient();
            DateTime dtBegin = DateTime.Now;
            DataSet ds = cdw.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.DataSetServiceSoapClient cdw = new com.dzbsoft.www.DataSetServiceSoapClient();
            DateTime dtBegin = DateTime.Now;
            byte[] buffer = cdw.GetDataSetBytes();
            BinaryFormatter ser = new BinaryFormatter();
            DataSet ds = ser.Deserialize(new MemoryStream(buffer)) as DataSet;
            this.label2.Text = string.Format("耗时:{0}", DateTime.Now - dtBegin + "大小：" + buffer.Length.ToString());
            BindDataSet(ds);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            com.dzbsoft.www.DataSetServiceSoapClient cdw = new com.dzbsoft.www.DataSetServiceSoapClient();
            DateTime dtBegin = DateTime.Now;
            byte[] buffer = cdw.GetDataSetSurrogateBytes();
            BinaryFormatter ser = new BinaryFormatter();
            DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate;
            DataSet ds = dss.ConvertToDataSet();
            this.label3.Text = string.Format("耗时:{0}", DateTime.Now - dtBegin +"大小：" + buffer.Length.ToString());
            BindDataSet(ds);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            com.dzbsoft.www.DataSetServiceSoapClient cdw = new com.dzbsoft.www.DataSetServiceSoapClient();
            DateTime dtBegin = DateTime.Now;
            byte[] zipbuffer = cdw.GetDataSetSurrogateZipBytes();
            byte[] buffer = UnZipClass.Decompress(zipbuffer);
            BinaryFormatter ser = new BinaryFormatter();
            DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate;
            DataSet ds = dss.ConvertToDataSet();
            this.label4.Text = string.Format("耗时:{0}", DateTime.Now - dtBegin + "大小：" + buffer.Length.ToString());
            BindDataSet(ds);
        }





    }
}

UnZipClass.cs

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

namespace Test
{
    public static  class UnZipClass
    {
        public static byte[] Decompress(byte[] data)
        {
            try
            {
                MemoryStream ms = new MemoryStream(data);
                Stream zipStream = new GZipStream(ms, CompressionMode.Decompress);
                byte[] dc_data = EtractBytesFormStream(zipStream, data.Length);
                return dc_data;
            }
            catch (System.Exception ex)
            {
                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 (System.Exception ex)
            {
                return null;
            }

        }
    }
}