using System;using System.Collections.Generic;using System.Text;namespace Pattern.Strategy
{
/// <summary>
/// Message实体类
/// </summary> public class MessageModel { /// <summary> /// 构造函数 /// </summary> /// <param name="msg">Message内容</param> /// <param name="pt">Message发布时间</param> public MessageModel(string msg, DateTime pt) { this._message = msg; this._publishTime = pt; } private string _message; /// <summary> /// Message内容 /// </summary> public string Message { get { return _message; } set { _message = value; } } private DateTime _publishTime; /// <summary> /// Message发布时间 /// </summary> public DateTime PublishTime { get { return _publishTime; } set { _publishTime = value; } } }
}using System;using System.Collections.Generic;using System.Text;namespace Pattern.Strategy{ /// <summary> /// 策略接口 /// </summary> public interface IMessageStrategy { /// <summary> /// 获取Message /// </summary> /// <returns></returns> List<MessageModel> Get(); /// <summary> /// 插入Message /// </summary> /// <param name="mm">Message实体对象</param> /// <returns></returns> bool Insert(MessageModel mm); }}using System;using System.Collections.Generic;using System.Text;namespace Pattern.Strategy{ /// <summary> /// Sql方式操作Message /// </summary> public class SqlMessage : IMessageStrategy { /// <summary> /// 获取Message /// </summary> /// <returns></returns> public List<MessageModel> Get() { List<MessageModel> l = new List<MessageModel>(); l.Add(new MessageModel("SQL方式获取Message", DateTime.Now)); return l; } /// <summary> /// 插入Message /// </summary> /// <param name="mm">Message实体对象</param> /// <returns></returns> public bool Insert(MessageModel mm) { // 代码略 return true; } }}using System;using System.Collections.Generic;using System.Text;namespace Pattern.Strategy{ /// <summary> /// Xml方式操作Message /// </summary> public class XmlMessage : IMessageStrategy { /// <summary> /// 获取Message /// </summary> /// <returns></returns> public List<MessageModel> Get() { List<MessageModel> l = new List<MessageModel>(); l.Add(new MessageModel("XML方式获取Message", DateTime.Now)); return l; } /// <summary> /// 插入Message /// </summary> /// <param name="mm">Message实体对象</param> /// <returns></returns> public bool Insert(MessageModel mm) { // 代码略 return true; } }}using System;using System.Collections.Generic;using System.Text;namespace Pattern.Strategy{ /// <summary> /// Context类 /// </summary> public class Message { /// <summary> /// 声明一个IMessageStrategy类型 /// </summary> private IMessageStrategy _strategy; /// <summary> /// 构造函数 /// </summary> /// <param name="strategy">具体算法</param> public Message(IMessageStrategy strategy) { this._strategy = strategy; } /// <summary> /// 获取Message /// </summary> /// <returns></returns> public List<MessageModel> Get() { return _strategy.Get(); } /// <summary> /// 插入Message /// </summary> /// <param name="mm">Message实体对象</param> /// <returns></returns> public bool Insert(MessageModel mm) { return _strategy.Insert(mm); } }}using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using Pattern.Strategy;public partial class Strategy : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { Message m = new Message(new XmlMessage()); Response.Write(m.Insert(new MessageModel("插入", DateTime.Now))); Response.Write("<br />"); Response.Write(m.Get()[0].Message + " " + m.Get()[0].PublishTime.ToString()); Response.Write("<br />"); m = new Message(new SqlMessage()); Response.Write(m.Insert(new MessageModel("插入", DateTime.Now))); Response.Write("<br />"); Response.Write(m.Get()[0].Message + " " + m.Get()[0].PublishTime.ToString()); Response.Write("<br />"); }}乐在其中设计模式(C#) - 策略模式(Strategy Pattern),布布扣,bubuko.com
乐在其中设计模式(C#) - 策略模式(Strategy Pattern)
原文：http://www.cnblogs.com/lonelyxmas/p/3590363.html
