asp.net Socket 实例 asp.net Socket 实例

asp.net Socket 实例

[csharp]  view plain  copy

1.   

[csharp]  view plain  copy

1. public class Socketclient  
2.     {  
3.         TextBox txt;  
4.         TextBox send_txt;  
5.         public Socketclient(TextBox txt, TextBox send_txt)  
6.         {  
7.             this.txt = txt;  
8.             this.send_txt = send_txt;  
9.         }  
10.         public void StartClient()  
11.         {  
12.             // Data buffer for incoming data.  
13.             byte[] bytes = new byte[1024];  
14.   
15.             // Connect to a remote device.  
16.             try  
17.             {  
18.                 // Establish the remote endpoint for the socket.  
19.                 // This example uses port 11000 on the local computer.  
20.                 IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());  
21.                 IPAddress ipAddress = ipHostInfo.AddressList[0];  
22.                 IPEndPoint remoteEP = new IPEndPoint(ipAddress, 1234);  
23.                 // Create a TCP/IP  socket.  
24.                 Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);  
25.   
26.                 // Connect the socket to the remote endpoint. Catch any errors.  
27.                 try  
28.                 {  
29.                     sender.Connect(remoteEP);  
30.                     // Console.WriteLine("Socket connected to {0}",sender.RemoteEndPoint.ToString());  
31.                     txt.Text += "\r\n" + sender.RemoteEndPoint.ToString() + "\r\n";  
32.                     // Encode the data string into a byte array.  
33.                     byte[] msg = Encoding.ASCII.GetBytes(send_txt.Text + "<EOF>");  
34.                     // Send the data through the socket.  
35.                     int bytesSent = sender.Send(msg);  
36.                     // Receive the response from the remote device.  
37.                     int bytesRec = sender.Receive(bytes);  
38.                     //Console.WriteLine("Echoed test = {0}",Encoding.ASCII.GetString(bytes,0,bytesRec));  
39.                     txt.Text += "\r\n" + Encoding.ASCII.GetString(bytes, 0, bytesRec) + "\r\n";//接收远程服务器信息  
40.   
41.                     // Release the socket.  
42.                     sender.Shutdown(SocketShutdown.Both);  
43.                     sender.Close();  
44.                 }  
45.                 catch (ArgumentNullException ane)  
46.                 {  
47.                     // Console.WriteLine("ArgumentNullException : {0}",ane.ToString());  
48.                     txt.Text += "\r\n" + ane.ToString() + "\r\n";  
49.                 }  
50.                 catch (SocketException se)  
51.                 {  
52.                     // Console.WriteLine("SocketException : {0}",se.ToString());  
53.                     txt.Text += "\r\n" + se.ToString() + "\r\n";  
54.                 }  
55.                 catch (Exception e)  
56.                 {  
57.                     // Console.WriteLine("Unexpected exception : {0}", e.ToString());  
58.                     txt.Text += "\r\n" + e.ToString() + "\r\n";  
59.                 }  
60.             }  
61.             catch (Exception e)  
62.             {  
63.                 // Console.WriteLine( e.ToString());  
64.                 txt.Text += "\r\n" + e.ToString() + "\r\n";  
65.             }  
66.         }  
67.     }  
68.  public class SocketServer {  
69.       
70.      int port;  //端口  
71.      string host;//ip地址  
72.      TextBox txt;  
73.      /// <summary>  
74.      /// 构造涵数  
75.      /// </summary>  
76.      /// <param name="ports">端口号</param>  
77.      public SocketServer(int ports, string host,TextBox txt)  
78.      {  
79.        this.port=ports;  
80.        this.host = host;  
81.        this.txt = txt;  
82.      }      
83.      //开始监听  
84.     public void beginListen(){          
85.         try  
86.         {  
87.             IPAddress ip = IPAddress.Parse(host);//把ip地址字符串转换为IPAddress类型的实例  
88.             IPEndPoint ipe = new IPEndPoint(ip, port);//用指定的端口和ip初始化IPEndPoint类的新实例  
89.             ///创建socket并开始监听  
90.             Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个socket对像，如果用udp协议，则要用SocketType.Dgram类型的套接字  
91.             s.Bind(ipe);//绑定EndPoint对像（端口和ip地址）  
92.             s.Listen(0);//开始监听  
93.             txt.Text += "等待客户端连接";  
94.            // Console.WriteLine("等待客户端连接");  
95.             //定义循环，以便可以简历多次连接  
96.             while (true)  
97.             {  
98.                 Socket temp = s.Accept();//为新建连接创建新的socket                 
99.                 while (true)  
100.                 {  
101.                     string recvStr = "";  
102.                     byte[] recvBytes = new byte[1024];  
103.                     int bytes;  
104.                     bytes = temp.Receive(recvBytes, recvBytes.Length, 0);//从客户端接受信息  
105.                     recvStr += Encoding.ASCII.GetString(recvBytes, 0, bytes);  
106.                     txt.Text += "\r\n" + recvStr + "\r\n";  
107.                     if (recvStr.IndexOf("<EOF>") > -1)  
108.                     {  
109.                         break;  
110.                     }  
111.                 }                  
112.                 //给client端返回信息  
113.                // Console.WriteLine("server get message:{0}", recvStr);//把客户端传来的信息显示出来  
114.                  
115.                 string sendStr = "jpeg upload OK";  
116.                 byte[] bs = Encoding.ASCII.GetBytes(sendStr);  
117.                 temp.Send(bs, bs.Length, 0);//返回信息给客户端  
118.                 temp.Shutdown(SocketShutdown.Both);  
119.                 temp.Close();              
120.   
121.             }  
122.         }  
123.         catch (Exception ex)  
124.         {  
125.             string str = ex.ToString();  
126.             txt.Text += "\r\n" + str + "\r\n";  
127.         }  
128.     }  
129. }}  

客户端按钮事件

[csharp]  view plain  copy

1. protected void Button1_Click(object sender, EventArgs e)  
2.      {  
3.              Socketclient client = new Socketclient(TextBox2, TextBox3);  
4.              client.StartClient();  
5.           
6.      }  

//服务端监听执行线程

[csharp]  view plain  copy

1. protected void Page_Load(object sender, EventArgs e)  
2.         {  
3.             if (!IsPostBack)  
4.             {  
5.                 SocketServer socket = new SocketServer(1234, "192.168.88.196", TextBox1);  
6.                 //启动线程  
7.                 Thread thread = new Thread(new ThreadStart(socket.beginListen));  
8.                 thread.Start();  
9.                 // 在应用程序启动时运行的代码  
10.                 //(new System.Threading.Thread(new System.Threading.ThreadStart(new Class1().CreatSocket))).Start();//开辟一个新线程  
11.             }  
12.         }  

aspx

[html]  view plain  copy

1. <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JpegForSocketServer.aspx.cs" Inherits="WebForAndroid.JpegForSocketServer" %>  
2.   
3. <!DOCTYPE html>  
4.   
5. <html xmlns="http://www.w3.org/1999/xhtml">  
6. <head runat="server">  
7. <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>  
8.     <title></title>  
9. </head>  
10. <body>  
11.     <form id="form1" runat="server">  
12.     <div>  
13.         <asp:TextBox ID="TextBox1" runat="server" Height="206px" TextMode="MultiLine" Width="700px" ></asp:TextBox>  
14.     </div>  
15.         <hr />  
16.         <asp:TextBox ID="TextBox2" runat="server" Height="197px" TextMode="MultiLine" Width="376px"></asp:TextBox>  
17.         <asp:TextBox ID="TextBox3" runat="server" Height="119px" TextMode="MultiLine"></asp:TextBox>  
18.         <asp:Button ID="Button1" runat="server" Height="52px" OnClick="Button1_Click" Text="SEND" Width="138px" />  
19.     </form>  
20. </body>  
21. </html>  

图：