Remoting模仿QQ实现客户端，服务器端聊天功能

来源：互联网发布：淘宝国产手机编辑：程序博客网时间：2024/06/06 07:02

研究Remoting已有一段时间了，最近业务不是很忙，所以本着打发时间的关系做了这么一个小工具，献丑！。

技术含量主要是用Remoting实现客户端订阅服务器端事件和服务器端订阅客户端事件，至于客户端和客户端聊天，那就是用的这两种技术的结合体了。两个DLL原代码如下：

using System;
using System.Collections.Generic;
using System.Text;
namespace YiRen.Qq.Commol
{
   //公共事件委托模型
   public delegate void CommandHandle(string txt);
   public interface IQq
   {
   event CommandHandle ChuFaQq;
   void Send(string txt);
   }
   ///<summary>
   ///客户端事件中间类
   ///</summary>
   public class CenterClass : MarshalByRefObject
   {
   public event CommandHandle CenterQq;
   public void Fax(string txt)
   {
   CenterQq(txt); //触发事件类,以此事件来更新客户端消息
   }
   /// <summary>
   /// 继承此方法来保证事件中间客户类生命周期永远保持
   /// </summary>
   /// <returns></returns>
   public override object InitializeLifetimeService()
   {
   return null;
   }
   }
   public interface IClient
   {
   void ClientSend(string txt);
   }
}

using System;
using System.Collections.Generic;
using System.Text;
using YiRen.Qq.Commol;
using System.Windows.Forms;
namespace YiRen.Qq.YuanCheng
{
   /// <summary>
   /// 远程对象类，利用此类来群发客户端消息
   /// </summary>
   public class ServerClass : MarshalByRefObject, IQq
   {
   public event CommandHandle ChuFaQq;
   //检查委托链来防止客户端突然断电等远程造成系统故障
   public void Send(string txt)
   {
   if (ChuFaQq != null)
   {
   CommandHandle temp = null;
   int num = 1; //用来记录哪个客户端出故障
   try
   {
   foreach (Delegate dele in ChuFaQq.GetInvocationList())
   {
   temp = (CommandHandle)dele;
   temp(txt);
   }
   }
   catch
   {
   MessageBox.Show("客户端" + num.ToString() + "出故障,请检查");
   num++;
   }
   }
   }
   public override object InitializeLifetimeService()
   {
   return null;
   }
   }
   public class CClient : MarshalByRefObject, IClient
   {
   public static event CommandHandle Client;
   public void ClientSend(string txt)
   {
   if (Client != null)
   {
   Client(txt);
   }
   }
   public override object InitializeLifetimeService()
   {
   return null;
   }
   }
}

服务器端原代码如下:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using YiRen.Qq.Commol;
using YiRen.Qq.YuanCheng;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Runtime.Remoting.Channels.Http;
using System.Runtime.Serialization.Formatters;
using System.Collections;
using System.Threading;
namespace WindowsApplication1
{
   public partial class frmserver : Form
   {
   public frmserver()
   {
   InitializeComponent();
   this.button1.Click += new EventHandler(button1_Click);
   }
   private ServerClass server = null;
   void button1_Click(object sender, EventArgs e)
   {
   if (this.textBox2.Text!= string.Empty)
   {
   this.textBox1.Text += this.textBox2.Text + "\r\n";
   server.Send(this.textBox2.Text.ToString());
   this.textBox2.Text = "";
   }
   }
   private void frmserver_Load(object sender, EventArgs e)
   {
   BinaryServerFormatterSinkProvider ser = new BinaryServerFormatterSinkProvider();
   ser.TypeFilterLevel = TypeFilterLevel.Full; //需要传送委托事件,所以必须用满格序列化
   BinaryClientFormatterSinkProvider cli = new BinaryClientFormatterSinkProvider();
   IDictionary wo = new Hashtable();
   wo["port"] = "2000";
   TcpChannel tcp = new TcpChannel(wo, cli, ser);
   ChannelServices.RegisterChannel(tcp);
   server = new ServerClass();
   ObjRef obj =RemotingServices.Marshal(server, "Qq");
   //模仿客户端群发事件的远程类
   HttpChannel http = new HttpChannel(2002);
   ChannelServices.RegisterChannel(http);
   RemotingConfiguration.RegisterWellKnownServiceType(typeof(CClient), "Client", WellKnownObjectMode.Singleton);
   CClient.Client += new CommandHandle(CClient_Client);
   }

   void CClient_Client(string txt)
   {
   this.textBox1.BeginInvoke(new MyDele(Shu), txt);
   server.Send(txt.ToString());
   }
   delegate void MyDele(string txt);
   private void Shu(string txt)
   {
   this.textBox1.Text += txt + "\r\n";
   }
   }
}