Net WebService 同步、异步、同步压缩解压和异步压缩解压实例详解(自带的Gzip)
/******************************************************************************** *主题： DotNet WebService 同步、异步、同步压缩解压和异步压缩解压实例详解 *说明：本文是个人学习的一些笔记和个人愚见 * 有很多地方你可能觉得有异议，欢迎一起讨论 *作者：Stephenzhou(阿蒙) *日期: 2012.08.9 *Mail:szstephenzhou@163.com *另外：转载请著名出处。 **********************************************************************************/
总想抽时间把webservice 中的相关技术好好整理下，今天时间刚好，随便写了个demo跟大家分享。给刚入门的人看看，高手看了如果有什么要指点的 本人热烈欢迎！！
在这个demo中client端用了十个按钮分别来是实现了同步string，异步string、同步压缩、解压dataset，异步压缩、解压dataset等操作。当然实际工作中根据你的需求自己去改吧。
上下压缩class类的代码
//========================================================================= //类名:DataSetZip /// <summary> /// 当DataSet中的数据量很大时,进行网络数据传递时,速度会很慢。 /// 本类将Dataset转化为DataSetSurrogate对象用Binary进行序列化, /// 然后进行压缩之后进行传输,最后进行解压缩 /// </summary> /// <remarks> /// 将DataSet中的DataTable中的数据进行转换或复原 /// </remarks> /******************************************************************************** *作者：Stephenzhou(阿蒙) *日期: 2012.08.7 *Mail:szstephenzhou@163.com *博客地址：http://blog.csdn.net/szstephenzhou*另外：转载请著名出处。 **********************************************************************************/using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using System.Runtime.Serialization.Formatters.Binary;using System.Data;using System.IO.Compression;namespace DataSetZip{ public class DataSetZip { //消息ID /// <summary> /// 取得将DataSet转化为DataSetSurrogate对象用Binary进行序列化,并压缩后的二进制数组 /// </summary> /// <param name="dsData">需压缩的DataSet数据</param> /// <returns>压缩后二进制数组</returns> public static byte[] GetDataSetZipBytes(DataSet dsData) { try { DataSetSurrogate dss = new DataSetSurrogate(dsData); BinaryFormatter ser = new BinaryFormatter(); MemoryStream ms = new MemoryStream(); ser.Serialize(ms, dss); byte[] buffer = ms.ToArray(); byte[] Zipbuffer = Compress(buffer); return Zipbuffer; } catch (Exception ex) { return null; //throw new DataSetConverterException(MSG_ERR_INTERNAL, new string[] { "DataSetZip", "GetDataSetZipBytes" }, ex, null); } } /// <summary> /// 用.net自带的Gzip对二进制数组进行压缩,压缩比率可能不是太好 /// </summary> /// <param name="data">二进制数组</param> /// <returns>压缩后二进制数组</returns> public static 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; } /// <summary> /// 对二进制数组进行解压缩 /// </summary> /// <param name="data">二进制数组</param> /// <returns>解压缩后的DataSet</returns> public static DataSet Decompress(byte[] data) { try { byte[] buffer = null; MemoryStream zipMs = new MemoryStream(data); buffer = EtractBytesFormStream(zipMs, data.Length); BinaryFormatter ser = new BinaryFormatter(); DataSetSurrogate dss = ser.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate; DataSet dsData = dss.ConvertToDataSet(); return dsData; } catch (Exception ex) { return null; // throw new DataSetConverterException(MSG_ERR_INTERNAL, new string[] { "DataSetZip", "Decompress" }, ex, null); } } /// <summary> /// 用.net自带的Gzip对数据流进行解压缩 /// </summary> /// <param name="zipMs">数据流</param> /// <param name="dataBlock">数据长度</param> /// <returns>解压缩后的二进制数组</returns> public static byte[] EtractBytesFormStream(MemoryStream zipMs, int dataBlock) { byte[] data = null; int totalBytesRead = 0; Stream zipStream = null; zipStream = new GZipStream(zipMs, CompressionMode.Decompress); 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; } }}
客户端的同步、异步调用webservice代码
/******************************************************************************** *作者：Stephenzhou(阿蒙) *日期: 2012.08.7 *Mail:szstephenzhou@163.com *博客地址：http://blog.csdn.net/szstephenzhou*另外：转载请著名出处。 **********************************************************************************/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.IO.Compression;using System.Data.SqlClient;using System.Runtime.Serialization.Formatters.Binary; namespace TextWindows{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } /// <summary> /// 异步调用 GetserviceTime方法。在异步调用的时候使用事件中的GetServiceTimeCompleted加了个方法。 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { localhost.YbService Client = new TextWindows.localhost.YbService(); Client.GetServiceTimeCompleted += new TextWindows.localhost.GetServiceTimeCompletedEventHandler(Client_GetServiceTimeCompleted); Client.GetServiceTimeAsync("异步测试 ：现在是北京时间:"); } void Client_GetServiceTimeCompleted(object sender, TextWindows.localhost.GetServiceTimeCompletedEventArgs e) { this.textBox1.Text = textBox1.Text+e.Result.ToString() + System.Environment.NewLine; } private void button2_Click(object sender, EventArgs e) { localhost.YbService Client = new TextWindows.localhost.YbService(); this.textBox1.Text = textBox1.Text + Client.GetServiceTime("同步测试 ：现在是北京时间") + System.Environment.NewLine; ; } private void button3_Click(object sender, EventArgs e) { localhost.YbService Client = new TextWindows.localhost.YbService(); dataGridView1.DataSource= DataSetZip.DataSetZip.Decompress(Client.GetDatatable()).Tables[0]; } private void button4_Click(object sender, EventArgs e) { localhost.YbService Client = new TextWindows.localhost.YbService(); Client.GetDatatableCompleted += new TextWindows.localhost.GetDatatableCompletedEventHandler(Client_GetDatatableCompleted); textBox1.Text = textBox1.Text + System.Environment.NewLine; Client.GetDatatableAsync(); } void Client_GetDatatableCompleted(object sender, TextWindows.localhost.GetDatatableCompletedEventArgs e) { dataGridView1.DataSource = DataSetZip.DataSetZip.Decompress(e.Result).Tables[0]; } }}
详细代码下载：
WebService Demo 下载
*作者：Stephenzhou(阿蒙)
*日期: 2012.08.9
*Mail:szstephenzhou@163.com
*另外：转载请著名出处。
*博客地址：http://blog.csdn.net/szstephenzhou