removeagent.java

一个很详细的航空售票系统开发的例子

package com.tarena.abs.server;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.tarena.abs.dao.AgentDAOFromFile;
import com.tarena.abs.dao.FlightDAOFromFile;

public class RemoveAgent extends JDialog implements ActionListener {

	/**
	 * 
	 */
	private static final long serialVersionUID = 9123088613560505611L;

	private JLabel name,message;
	private JTextField value;
	private JButton ok,cancel;
	public RemoveAgent(JFrame jf){
		super(jf,"删除代理商",true);
		message=new JLabel("删除代理商");
		name=new JLabel("代理商姓名:");
		value=new JTextField(10);
		ok=new JButton("确定");
		cancel=new JButton("取消");
		JPanel jp1=new JPanel();
		JPanel jp2=new JPanel();
		JPanel jp3=new JPanel();
		jp1.add(name);
		jp1.add(value);
		jp2.add(ok);
		jp2.add(cancel);
		jp3.add(message);
		this.add(jp3,BorderLayout.NORTH);
		this.add(jp1,BorderLayout.CENTER);
		this.add(jp2,BorderLayout.SOUTH);
		ok.addActionListener(this);
		cancel.addActionListener(this);
		showMe();
	}
	public void showMe(){
		this.setSize(300,150);
		this.setVisible(true);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		if(e.getActionCommand().equals("确定")){
			try {
				AgentDAOFromFile f=new AgentDAOFromFile(new File("agent.dat"));
				boolean success=f.removeAgent(value.getText());
				if(success){
					JOptionPane.showMessageDialog(this,"删除成功！");
					this.dispose();
				}
				else{
					JOptionPane.showMessageDialog(this,"删除失败,可能无此航班计划！");
					this.dispose();
				}
			} catch (Exception e1) {
				e1.printStackTrace();
			}
		}else if(e.getActionCommand().equals("取消")){
			this.dispose();
		}
	}

	
}