javabean自定义组件

JavaBean自定组件

package com.wt010.jframe;

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.EventListener;
import java.util.EventObject;

import javax.swing.*; 

/**
 * @author konecms
 * @date 2018年1月20日
 * @version 1.0
 */
class LoginEvent extends EventObject{
    public String sUserName,sUserPass;

    public LoginEvent(Object obj,String sUserName,String sUserPass) {
        super(obj);
        // TODO Auto-generated constructor stub
        this.sUserName=sUserName;
        this.sUserPass=sUserPass;
    }
    
}
interface LoginListener extends EventListener{
    public void validateLogin(LoginEvent mec);
}

class LoginBean extends JPanel implements ActionListener{
    
    JLabel lblUser=new JLabel("用户名：");
    JLabel lblPass=new JLabel("密码：");
    JTextField txtUser=new JTextField(15);
    JPasswordField txtPass=new JPasswordField(15);
    JButton buttonLogin =new JButton("登录");
    JButton buttonCancel=new JButton("取消");
    public LoginBean(){
        setLayout(new FlowLayout());
        add(lblUser);add(txtUser);
        add(lblPass);add(txtPass);
        add(buttonLogin);buttonLogin.addActionListener(this);
        add(buttonCancel);buttonCancel.addActionListener(this);
    }
    LoginListener mel;
    public void addLoginListener(LoginListener mel){
        this.mel=mel;
    }
    LoginEvent mec;
    public void fireLoginEvent(LoginEvent mec){
         if(mel!=null){
             mel.validateLogin(mec);
         }else{
             System.out.println("Client not init");
         }
    }

    @Override
    public void actionPerformed(ActionEvent ae) {
        // TODO Auto-generated method stub
        if(ae.getSource()==buttonLogin){
            String temp1=txtUser.getText();
            String temp2=new String(txtPass.getPassword());
            mec=new LoginEvent(buttonLogin,temp1,temp2);
            fireLoginEvent(mec);return;
        }
        if(ae.getSource()==buttonCancel){
            System.exit(0);
        }
    }
    
}
class JavaBean extends JFrame implements LoginListener{

    LoginBean meb;
    public JavaBean(){
        super("javabean");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        meb=new LoginBean();
        this.getContentPane().add(meb);
        meb.addLoginListener(this);
    }
    @Override
    public void validateLogin(LoginEvent mec) {
        // TODO Auto-generated method stub
        String s1=mec.sUserName;
        String s2=mec.sUserPass;
        JOptionPane.showMessageDialog(this, "用户名："+s1+"\t密码是："+s2);
    }
    public static void main(String[] args) {
        JavaBean mec=new JavaBean();
        mec.setSize(200,200);
        mec.setVisible(true);
    }
    
}