client.java

虚拟飞机订票系统

package airline;

import java.io.*;
import java.net.*;
import javax.swing.*;
import java.util.*;

class Client
{
  public Client(String info)
  {
    try{
      //建立socket连接
      connectToServer();
      //创建输入流 输出流
      getStreams();
      //发送请求数据
      sendData(info);
      //进行连接
      processConnection();
      //断开连接
      closeConnection();
    }
    catch(EOFException e){}
    catch (IOException ex) {}

  }

  private void getStreams() throws IOException
  {
    output=new ObjectOutputStream(socket.getOutputStream());
    output.flush() ;

    input=new ObjectInputStream(socket.getInputStream()) ;
  }
  private void connectToServer() throws IOException
  {
    socket=new Socket(InetAddress.getByName(host),7450) ;
  }
  private void processConnection() throws IOException
  {
    try {
      list=(ArrayList)input.readObject();
    }
    catch (Exception ex) {}
  }
  private void closeConnection() throws IOException
  {
    output.close() ;
    input.close() ;
    socket.close() ;
  }
  private void sendData(String data)
  {
    try{
      output.writeObject(data);
      output.flush() ;
    }
    catch(IOException e)
    {
      JOptionPane.showMessageDialog(null,"发送请求失败");
    }
  }
  private ObjectOutputStream output;
  private ObjectInputStream input;
  private Socket socket;
  private String host="127.0.0.1";
  public ArrayList list;
}