socket(一)

 1 package 线程安全的讨论;

 2 import java.io.BufferedReader;

 3 import java.io.IOException;

 4 import java.io.InputStreamReader;

 5 import java.io.PrintStream;

 6 import java.net.ServerSocket;

 7 import java.net.Socket;

 8 

 9 public class Server {

10      public static void main(String[] args) throws IOException {

11           //创建月hi个ServerSocket，用于监听客户端Socket的连接请求

12          ServerSocket ss=new ServerSocket(3000);

13          System.out.println("服务器启动了");

14          while(true)

15          {

16              

17              Socket s=ss.accept();

18              //输出流，输出到客户端

19              PrintStream p=new PrintStream(s.getOutputStream());

20              //输入流

21              BufferedReader buf=new BufferedReader(new InputStreamReader(s.getInputStream()));

22              

23              

24              //读取服务器端的信息，并echo到客户端，以bye结束

25             System.out.println("accept"+s.getInetAddress());

26              

27             

28                while(true)

29                {

30                    String line=buf.readLine();

31                    if(line.equals("bye"))

32                    {

33                        System.out.println("good bye");

34                        break;

35                    }

36                    else

37                    {

38                        System.out.println(line);

39                    }

40                    

41                    

42                }

43          }

44           

45          

46      }

47 

48 }

2.客户端

 

package 线程安全的讨论;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintStream;

import java.net.Socket;

import java.util.Scanner;



public class Client {

     public static void main(String[] args) {

          try

          {

               Socket socket=new Socket("127.0.0.1",3000);

               //将socket对应的输入流包装成BufferedReader

               BufferedReader br=new BufferedReader( new InputStreamReader(System.in));

              

         

              

               

               PrintStream pt=new PrintStream(socket.getOutputStream());

              

             

               String line=null;

               while((line=br.readLine()) != null)

               {

                   pt.println(line);

                   

               }

               

               br.close();

               socket.close();



          }

          catch(IOException e)

          {

               e.printStackTrace();

          }

         

     }



}