ServerSocket和Socket

前言

      用ServerSocket和Socket做了个Server、Client通信的demo，以及学习下在这个demo过程中用到java.net、java.io包下几个常用的类。

Server

import java.net.*;import java.io.*;public class HttpServer{         public static void main(String[] args){        new HttpServer().start();     }         private ServerSocket serversocket=null;         public HttpServer(){        try{             serversocket=new ServerSocket(5000);//监听客户端端口5000的socket请求             System.out.println("服务器启动");         }catch(IOException e){             e.printStackTrace();         }     }    public void start(){         Socket socket=null;        while(true){            try{                 socket=serversocket.accept(); //接受客户端请求socket                 System.out.println("address:"+socket.getInetAddress()+":"+socket.getLocalPort());                                  OutputStream os =socket.getOutputStream();                 BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(os));                //向客户端发送一条消息                 bw.write("测试服务器通信\n");                 bw.flush();             }catch(IOException e){                 e.printStackTrace();                 System.out.println("连接断开");             }finally{                try{                    if(socket !=null){                         socket.close();                     }                 }catch(IOException e){                                      }             }         }     } }

Client

import java.net.*;import java.io.*;public class Client{         public static void main(String[] args){         Socket socket=null;        try{             socket =new Socket("127.0.0.1",5000);                                       InputStream is =socket.getInputStream();             InputStreamReader isr=new InputStreamReader(is);             BufferedReader br =new BufferedReader (isr);             String mess=br.readLine();                          System.out.println("mess:"+mess);         }catch(IOException e){             e.printStackTrace();         }finally{            try{                if(socket !=null){                     socket.close();                 }             }catch(IOException e){                              }         }              }      }

 总结

     java.net包内几个常用的类: 

         ServerSocket、

         Socket、

         OutputStream、InputStream、

　　   InputStreamReader、OutputStreamWriter、

　　   BufferedReader、BufferedWriter、 

         InetAddress、