showland.java

我做的第一个java MIS项目

package client;
import java.awt.Font;
import java.awt.Rectangle;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

import server.entity.User;
import server.action.BusinessAction;

public class Showland extends JFrame{

    JComboBox cobusername;
    JPasswordField pwfuserpwd;
    JLabel lbllogo;
    JLabel lblsuper;
    JButton btnok;
    JButton btncancle;

    //Showland构造方法
    public Showland()
    {try{jbInit();}
    catch(Exception e){}}

    //界面构建
    public void jbInit() throws Exception
    {
        cobusername=new JComboBox(BusinessAction.loadusername());  //载入曾登陆帐户
        pwfuserpwd=new JPasswordField(10);
        lbllogo=new JLabel(new ImageIcon(".\\pic\\land\\land.jpg"));
        lblsuper=new JLabel(new ImageIcon(".\\pic\\land\\super.jpg"));
        btnok=new JButton("确定");
        btncancle=new JButton("取消");


        cobusername.setFont(new Font("宋体",0,12));
        cobusername.setEditable(true);
        cobusername.setBounds(new Rectangle(68, 118, 132, 23));
        cobusername.addMouseMotionListener(new Showland_cobusername_mouseMotionAdapter(this));
        btnok.setBounds(new Rectangle(40, 194, 77, 25));
        btnok.setFont(new Font("宋体",0,12));
        btnok.setMaximumSize(new Dimension(30, 23));
        btnok.setMinimumSize(new Dimension(30, 23));
        btnok.addActionListener(new Showland_btnok_actionAdapter(this));
        btncancle.setBounds(new Rectangle(123, 194, 77, 25));
        btncancle.setFont(new Font("宋体",0,12));
        btncancle.addActionListener(new Showland_btncancle_actionAdapter(this));
        pwfuserpwd.setFont(new Font("宋体",0,12));
        pwfuserpwd.setToolTipText("键入回车登陆");
        pwfuserpwd.setBounds(new Rectangle(68, 155, 132, 23));
        pwfuserpwd.addKeyListener(new Showland_pwfuserpwd_keyAdapter(this));
        lbllogo.setBounds(new Rectangle( -1, 0, 350, 240));
        lblsuper.setBounds(new Rectangle(209, 193, 35, 30));
        lblsuper.addMouseListener(new Showland_lblsuper_mouseAdapter(this));

        getContentPane().setLayout(null);
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        this.getContentPane().add(cobusername);
        this.getContentPane().add(pwfuserpwd);
        this.getContentPane().add(lblsuper);
        this.getContentPane().add(btnok);
        this.getContentPane().add(btnok);
        this.getContentPane().add(btncancle);
        this.getContentPane().add(lbllogo);

        //隐藏超级管理员按钮
        lblsuper.setBounds(new Rectangle(209, 193, 0, 0));

    }
    //超级用户按钮实现
    public void lblsuper_mouseClicked(MouseEvent e)
    {


    }
    //取消按钮实现
    public void btncancle_actionPerformed(ActionEvent e)
    {System.exit(1);}
    //确定按钮实现
    public void btnok_actionPerformed(ActionEvent e)
    {
        //得到必要信息
        String username=cobusername.getSelectedItem().toString().trim();
        String userpwd=new String(pwfuserpwd.getPassword()).trim();


        //设置各实体属性
            //设置用户实体
            User user=new User();
            user.setusername(username);
            user.setuserpwd(userpwd);

        //健壮性检查
        if(username.equals("")||userpwd.equals(""))
        {JOptionPane.showMessageDialog(this,"请填写完用户名和密码！","提示",JOptionPane.WARNING_MESSAGE,null);}
        else
        {
            if(BusinessAction.chk(user))    //调用帐户检查
            {
                //加入帐户登陆名
                BusinessAction.addusername(username);
                //重绘cobusername
                cobusername.setModel(new DefaultComboBoxModel(BusinessAction.loadusername()));
                cobusername.updateUI();
                cobusername.setSelectedItem("");
                //设置登陆帐户
                cobusername.setSelectedItem(username);
                //进入主窗体
                Mainpanel mainpanel=new Mainpanel();
                mainpanel.setSize(800,600);
                //居中主窗体
                Dimension ScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
                Dimension FrameSize= mainpanel.getSize();
                mainpanel.setLocation((ScreenSize.width-FrameSize.width)/2,(ScreenSize.height-FrameSize.height)/2);
                mainpanel.setVisible(true);
                this.dispose();
            }
            else
            {JOptionPane.showMessageDialog(this,"您的用户名或密码错误！","错误",JOptionPane.WARNING_MESSAGE,null);}
        }
    }
    //清空曾登陆帐户名
    public void cobusername_mouseMoved(MouseEvent e)
    {
        String username=(cobusername.getSelectedItem().toString().trim());
        if(username.equals("-清空曾登陆帐户-"))
        {
            //清空曾登陆帐户名
            BusinessAction.cleanusername();
            //重绘cobusername
            cobusername.setModel(new DefaultComboBoxModel(BusinessAction.loadusername()));
            cobusername.updateUI();
            cobusername.setSelectedItem("");
            //设置登陆帐户
            cobusername.setSelectedItem("");
        }
    }
    //回车调用确定按钮
    public void pwfuserpwd_keyPressed(KeyEvent e) {
        if(e.getKeyCode()==10)
        {
            //得到必要信息
            String username=cobusername.getSelectedItem().toString().trim();
            String userpwd=new String(pwfuserpwd.getPassword()).trim();


            //设置各实体属性
                //设置用户实体
                User user=new User();
                user.setusername(username);
                user.setuserpwd(userpwd);

           //健壮性检查
               if(username.equals("")||userpwd.equals("")){JOptionPane.showMessageDialog(this,"请填写完用户名和密码！","提示",JOptionPane.WARNING_MESSAGE,null);}
               else
               {
                   if(BusinessAction.chk(user))    //调用帐户检查
                   {
                       //加入帐户登陆名
                       BusinessAction.addusername(username);
                       //重绘cobusername
                       cobusername.setModel(new DefaultComboBoxModel(BusinessAction.loadusername()));
                       cobusername.updateUI();
                       cobusername.setSelectedItem("");
                       //设置登陆帐户
                       cobusername.setSelectedItem(username);
                       //进入主窗体
                       Mainpanel mainpanel=new Mainpanel();
                       mainpanel.setSize(800,600);
                       //居中主窗体
                       Dimension ScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
                       Dimension FrameSize= mainpanel.getSize();
                       mainpanel.setLocation((ScreenSize.width-FrameSize.width)/2,(ScreenSize.height-FrameSize.height)/2);
                       mainpanel.setVisible(true);
                       this.dispose();
                   }
                   else
                   {JOptionPane.showMessageDialog(this,"您的用户名或密码错误！","错误",JOptionPane.WARNING_MESSAGE,null);}
               }
         }
    }
}


//监听器、适配器
class Showland_pwfuserpwd_keyAdapter extends KeyAdapter {
    private Showland adaptee;
    Showland_pwfuserpwd_keyAdapter(Showland adaptee) {
        this.adaptee = adaptee;
    }

    public void keyPressed(KeyEvent e) {
        adaptee.pwfuserpwd_keyPressed(e);
    }
}


class Showland_btnok_actionAdapter implements ActionListener {
    private Showland adaptee;
    Showland_btnok_actionAdapter(Showland adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.btnok_actionPerformed(e);
    }
}


class Showland_lblsuper_mouseAdapter extends MouseAdapter {
    private Showland adaptee;
    Showland_lblsuper_mouseAdapter(Showland adaptee) {
        this.adaptee = adaptee;
    }

    public void mouseClicked(MouseEvent e) {
        adaptee.lblsuper_mouseClicked(e);
    }
}


class Showland_btncancle_actionAdapter implements ActionListener {
    private Showland adaptee;
    Showland_btncancle_actionAdapter(Showland adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.btncancle_actionPerformed(e);
    }
}


class Showland_cobusername_mouseMotionAdapter extends MouseMotionAdapter {
    private Showland adaptee;
    Showland_cobusername_mouseMotionAdapter(Showland adaptee) {
        this.adaptee = adaptee;
    }

    public void mouseMoved(MouseEvent e) {
        adaptee.cobusername_mouseMoved(e);
    }
}