Remoting模仿QQ实现客户端，服务器端聊天功能

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：

1. using System;
2. using System.Collections.Generic;
3. using System.Text;
4. namespace YiRen.Qq.Commol
5. {
6.     //公共事件委托模型
7.     public delegate void CommandHandle(string txt);
8.     public interface IQq
9.     {
10.         event CommandHandle ChuFaQq;
11.         void Send(string txt);
12.     }
13.     ///<summary>
14.     ///客户端事件中间类
15.     ///</summary>
16.     public class CenterClass : MarshalByRefObject
17.     {
18.         public event CommandHandle CenterQq;
19.         public void Fax(string txt)
20.         {
21.             CenterQq(txt);  //触发事件类,以此事件来更新客户端消息
22.         }
23.         /// <summary>
24.         /// 继承此方法来保证事件中间客户类生命周期永远保持
25.         /// </summary>
26.         /// <returns></returns>
27.         public override object InitializeLifetimeService()
28.         {
29.             return null;
30.         }
31.     }
32.     public interface IClient
33.     {
34.         void ClientSend(string txt);
35.     }
36. }
38. using System;
39. using System.Collections.Generic;
40. using System.Text;
41. using YiRen.Qq.Commol;
42. using System.Windows.Forms;
43. namespace YiRen.Qq.YuanCheng
44. {
45.     /// <summary>
46.     /// 远程对象类，利用此类来群发客户端消息
47.     /// </summary>
48.     public class ServerClass : MarshalByRefObject, IQq
49.     {
50.         public event CommandHandle ChuFaQq;
51.         //检查委托链来防止客户端突然断电等远程造成系统故障
52.         public void Send(string txt)
53.         {
54.             if (ChuFaQq != null)
55.             {
56.                 CommandHandle temp = null;
57.                 int num = 1;  //用来记录哪个客户端出故障
58.                 try
59.                 {
60.                     foreach (Delegate dele in ChuFaQq.GetInvocationList())
61.                     {
62.                         temp = (CommandHandle)dele;
63.                         temp(txt);
64.                     }
65.                 }
66.                 catch
67.                 {
68.                     MessageBox.Show("客户端" + num.ToString() + "出故障,请检查");
69.                     num++;
70.                 }
71.             }
72.         }
73.         public override object InitializeLifetimeService()
74.         {
75.             return null;
76.         }
77.     }
78.     public class CClient : MarshalByRefObject, IClient
79.     {
80.         public static event CommandHandle Client;
81.         public void ClientSend(string txt)
82.         {
83.             if (Client != null)
84.             {
85.                 Client(txt);
86.             }
87.         }
88.         public override object InitializeLifetimeService()
89.         {
90.             return null;
91.         }
92.     }
93. }

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服务器端原代码如下:

1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Data;
5. using System.Drawing;
6. using System.Text;
7. using System.Windows.Forms;
8. using YiRen.Qq.Commol;
9. using YiRen.Qq.YuanCheng;
10. using System.Runtime.Remoting;
11. using System.Runtime.Remoting.Channels;
12. using System.Runtime.Remoting.Channels.Tcp;
13. using System.Runtime.Remoting.Channels.Http;
14. using System.Runtime.Serialization.Formatters;
15. using System.Collections;
16. using System.Threading;
17. namespace WindowsApplication1
18. {
19.     public partial class frmserver : Form
20.     {
21.         public frmserver()
22.         {
23.             InitializeComponent();
24.             this.button1.Click += new EventHandler(button1_Click);
25.         }
26.         private ServerClass server = null;
27.         void button1_Click(object sender, EventArgs e)
28.         {
29.             if (this.textBox2.Text!= string.Empty)
30.             {
31.                 this.textBox1.Text += this.textBox2.Text + "\r\n";
32.                 server.Send(this.textBox2.Text.ToString());
33.                 this.textBox2.Text = "";
34.             }
35.         }
36.         private void frmserver_Load(object sender, EventArgs e)
37.         {
38.             BinaryServerFormatterSinkProvider ser = new BinaryServerFormatterSinkProvider();
39.             ser.TypeFilterLevel = TypeFilterLevel.Full; //需要传送委托事件,所以必须用满格序列化
40.             BinaryClientFormatterSinkProvider cli = new BinaryClientFormatterSinkProvider();
41.             IDictionary wo = new Hashtable();
42.             wo["port"] = "2000";
43.             TcpChannel tcp = new TcpChannel(wo, cli, ser);
44.             ChannelServices.RegisterChannel(tcp);
45.             server = new ServerClass();
46.             ObjRef obj =RemotingServices.Marshal(server, "Qq");
47.             //模仿客户端群发事件的远程类
48.             HttpChannel http = new HttpChannel(2002);
49.             ChannelServices.RegisterChannel(http);
50.             RemotingConfiguration.RegisterWellKnownServiceType(typeof(CClient), "Client", WellKnownObjectMode.Singleton);
51.             CClient.Client += new CommandHandle(CClient_Client);
52.         }
54.         void CClient_Client(string txt)
55.         {
56.             this.textBox1.BeginInvoke(new MyDele(Shu), txt);
57.             server.Send(txt.ToString());
58.         }
59.         delegate void MyDele(string txt);
60.         private void Shu(string txt)
61.         {
62.             this.textBox1.Text += txt + "\r\n";
63.         }
64.     }
65. }

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客户端代码如下：

1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Data;
5. using System.Drawing;
6. using System.Text;
7. using System.Windows.Forms;
8. using YiRen.Qq.Commol;
9. using System.Runtime.Remoting;
10. using System.Runtime.Remoting.Channels;
11. using System.Runtime.Remoting.Channels.Tcp;
12. using System.Runtime.Remoting.Channels.Http;
13. using System.Runtime.Serialization.Formatters;
14. using System.Collections;
15. using System.Threading;
16. namespace WindowsApplication1
17. {
18.     public partial class frmclient : Form
19.     {
20.         public frmclient()
21.         {
22.             InitializeComponent();
23.         }
24.         IQq qq = null;
25.         IClient client = null;
26.         delegate void MyDele(string txt);
27.         private void Shu(string txt)
28.         {
29.             this.textBox1.Text += txt + "\r\n";
30.         }
31.         private void frmclient_Load(object sender, EventArgs e)
32.         {
33.             BinaryServerFormatterSinkProvider ser = new BinaryServerFormatterSinkProvider();
34.             ser.TypeFilterLevel = TypeFilterLevel.Full; //需要传送委托事件,所以必须用满格序列化
35.             BinaryClientFormatterSinkProvider cli = new BinaryClientFormatterSinkProvider();
36.             IDictionary wo = new Hashtable();
37.             wo["port"] = "0";
38.             TcpChannel tcp = new TcpChannel(wo, cli, ser);
39.             ChannelServices.RegisterChannel(tcp);
40.             qq = (IQq)Activator.GetObject(typeof(IQq), "tcp://10.8.33.40:2000/Qq");
41.             CenterClass cen = new CenterClass();
42.             cen.CenterQq += new CommandHandle(cen_CenterQq);
43.             qq.ChuFaQq+=new CommandHandle(cen.Fax);
44.             ChannelServices.RegisterChannel(new HttpChannel());
45.             client = (IClient)Activator.GetObject(typeof(IClient), "http://10.8.33.40:2002/Client");
46.         }
48.         void cen_CenterQq(string txt)
49.         {
50.             if (InvokeRequired)
51.             {
52.                 this.textBox1.BeginInvoke(new MyDele(Shu), txt);
53.             }
54.             else
55.             {
56.                 this.textBox1.Text += txt + "\r\n";
57.             }
58.         }
60.         private void button1_Click(object sender, EventArgs e)
61.         {
62.             if (textBox2.Text != string.Empty)
63.             {
64.                 client.ClientSend(textBox2.Text);
65.             }
66.         }
67.     }
68. }