socket

//先启动服务器，设置监听的端口

package test.wuxif.chat;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.LinkedList;

import javax.swing.JFrame;

public class ServerSocket001  extends JFrame
{
   
    static StringBuffer  sb=new StringBuffer();
    static LinkedList<Socket>   list=new LinkedList<Socket>();
    public static void main(String[] args) throws IOException
    {
        ServerSocket serversocket = new ServerSocket(9999);
        while(true)
        {
            System.out.println("启动前准备！！！！！");
          Socket socket= serversocket.accept();
         list.add(socket);
          //send线程     receive线程
         //sendMessage处理了接受该socket的信息，并发送给其他socket
          ServerSendMessage sendMessage = new ServerSendMessage(socket,sb,list);
          //上面包含了处理接受消息，所以在此就不要了！！！！！
                 ReceiveMessage receiveMessage = null;//new ReceiveMessage(socket,sb);
                // SendMessage sendMessage = new SendMessage(socket,sb);
                 //启动一个客户端线程
                Client  client= new Client(sendMessage,receiveMessage);
                Thread  thread=new Thread(client);
                thread.start();
        }
        }
}
class   Client  implements  Runnable
{

    private ReceiveMessage receiveMessage;
    private ServerSendMessage sendMessage;

    public Client(ServerSendMessage sendMessage, ReceiveMessage receiveMessage)
    {
        // TODO Auto-generated constructor stub
        this.sendMessage=sendMessage;
        this.receiveMessage=receiveMessage;
    }

  

    @Override
    public void run()
    {
        // TODO Auto-generated method stub
        Thread  thread=new Thread(sendMessage);
        thread.start();
        Thread  thread2=new Thread(receiveMessage);
        thread2.start();
       
    }
   

 

}

//服务器发消息收消息接口的实现

package test.wuxif.chat;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.LinkedList;
import java.util.Scanner;

public class ServerSendMessage  implements  Runnable
{

    private StringBuffer sb;
    private Socket socket;
    private LinkedList<Socket> list;

    public ServerSendMessage(Socket socket, StringBuffer sb, LinkedList<Socket> list)
    {
        this.socket=socket;
        this.sb=sb;
        this.list=list;
    }

  

    @Override
    public void run()
    {
        // TODO Auto-generated method stub
        BufferedWriter bw=null;
        BufferedReader br=null;
        try
        {
           //得到该socket的输入流，好发给其他socket
             br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String len;
            while((len=br.readLine())!=null)
            {
                //遍历该端口下的socket数量
                for (int i = 0; i <list.size(); i++)
                {
                   Socket socket1 = list.get(i);
                   if(socket1!=socket)
                   System.out.println(socket+"111111111111");
                  bw = new BufferedWriter(new OutputStreamWriter(socket1.getOutputStream()));
                       bw.write(len+"\r\n");
                       System.out.println(len+"读 的数据 ");
                       bw.flush();
                  
                }
             
            }
        } catch (IOException e)
        {
            // TODO Auto-generated catch block
           e.printStackTrace();
        }
        finally
        {
           
            if(bw!=null)
                try
                {
                    bw.close();
                } catch (IOException e)
                {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
        }
       
    }

}

//再设置客户端，请求连接哪个端口

package test.wuxif.chat;

import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;

public class Client1
{
    static StringBuffer  sb=new StringBuffer();
            public static void main(String[] args) throws UnknownHostException, IOException
            {
                //先启动服务端，然后启动该客户端
                Socket socket = new Socket("127.0.0.1",9999);
               //input();
                //发消息下面处理了，封装了input()，所以不用input()
                Thread  send=new Thread(new SendMessage(socket, sb));
                send.start();
                Thread  receive=new Thread(new ReceiveMessage(socket, sb));
                receive.start();
            }
            private static void input()
            {
                // TODO Auto-generated method stub
                while(true)
                {
                    Scanner s=new Scanner(System.in);
                    sb.append(s.nextLine());
                    System.out.println(sb);
                    System.out.println("000000");
                }
               
            }
           
}

//发消息，收消息两个接口的实现

package test.wuxif.chat;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Scanner;

public class SendMessage   implements  Runnable
{

    private Socket socket;
    private StringBuffer sb;

    public SendMessage(Socket socket, StringBuffer sb)
    {
        // TODO Auto-generated constructor stub
        this.socket=socket;
        this.sb=sb;
    }

    @Override
    public void run()
    {
        // TODO Auto-generated method stub
        BufferedWriter bw=null;
        try
        {
            bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
            //这就是个死循环，等着用户输入消息，所以发消息，接受消息要是两个线程
            while(true)
            {
                Scanner s=new Scanner(System.in);
                String next = s.next();
                sb.append(s.nextLine()+"\r\n");
                //"\r\n"一定要有的，
                bw.write(next+"\r\n");
             
                bw.flush();
              
               
            }
        } catch (IOException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        finally
        {
           
            if(bw!=null)
                try
                {
                    bw.close();
                } catch (IOException e)
                {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
        }
       
    }
           
}

 

 

package test.wuxif.chat;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

public class ReceiveMessage   implements  Runnable
{

    private Socket socket;
    private StringBuffer sb;

    public ReceiveMessage(Socket socket,StringBuffer sb)
    {
        this.socket=socket;
        this.sb=sb;
    }

  

    @Override
    public void run()
    {
        BufferedReader br=null;
        String s;
            try
            {
                br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                System.out.println("read!!!");
             
                while((s=br.readLine())!=null)
                {
                    System.out.println(s);
                     
               
                }
              
            } catch (IOException e)
            {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            finally
            {
               
                if(br!=null)
                    try
                    {
                        br.close();
                    } catch (IOException e)
                    {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
            }
          
           
    }

}