/*  * date: 2004-11-29 author:zhangyu6050;   * todo:一个双人单方向通信例子  *      本文件是主机方(Server)  *      提供主机与客户机的通信套节字:fromClient  * bugs:  */ 
import java.net.*; import java.io.*; 
public class ChatServer { 
    public static void main(String[] args) {                  final int port = 1775;  //建立通信的主机的端口号            ServerSocket socServer = null;         Socket fromClient=null;//主机与客户机的通信套节字:fromClient          String message="hello,i'm server!";         try          {             socServer = new ServerSocket(port);          }          catch (IOException e)          {             System.err.println("Could not listen on port: "+port);             System.exit(1);         }  
 Socket clientSocket = null;         try {             fromClient = socServer.accept();         } catch (IOException e) {             System.err.println("Accept failed.");             System.exit(1);         }              try{         ObjectOutputStream oos=new ObjectOutputStream(fromClient.getOutputStream());               oos.writeObject(message);         oos.close();         fromClient.close();//关闭套节字前要关闭所有的流连接                  } catch (IOException e1) {                         e1.printStackTrace();         }     } 
}
 
 
 
  /*  * date:   2004-11-29  * author:zhangyu6050;  * todo:   一个双人单方向通信例子  *        本文件是客户方(client)  * bugs:   */ import java.net.*; import java.io.*; public class ChatClient {      public static void main(String[] args) {         final int port=1775;         Socket socket=null;         try {             socket=new Socket("127.0.0.1",port);             ObjectInputStream ois=new ObjectInputStream(socket.getInputStream());             String mess=(String)ois.readObject();             System.out.print(mess);                                                } catch (UnknownHostException e) {                         e.printStackTrace();         } catch (IOException e) {                          e.printStackTrace();         } catch (ClassNotFoundException e) {              e.printStackTrace();         }     } }
   
 
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