【JDK】【Java工具】Java GUI实现窗口跳转，Java GUI基本使用

程序员文章站 2024-03-30 21:03:51

中午遇见了一个需求，100块钱，一个银行的系统，用Java图形界面这一套写。100块钱不值，但我没用Java图形界面写过东西，就想搞清楚一下其中的类之间的关系，顺便实现一些基本的功能。它需求很明确，需要切换窗口，需要持久层存储数据。持久层就不搞了，就基本实现我暂时不会的切换窗口吧。基本实现：每一个类相当于就是一个单独的页面每个类中需要定义属性，属性为窗口的"dom"元素在实例化的时候，把窗口中的属性给实例化，相当于初始化dom，初始化页面。每个页面需要关联在一起，则需要监听自己窗...

我的代码只实现了窗口跳转等基本功能，需要学习Java GUI布局，可以看看这位兄嘚的文章
JAVA 图形界面大作业（一）布局篇

中午遇见了一个需求，100块钱，一个银行的系统，用Java图形界面这一套写。

100块钱不值，但我没用Java图形界面写过东西，拒绝这个单子之后，抱着学习的态度，就想搞清楚一下其中的类之间的关系，顺便实现一些基本的功能。

【JDK】【Java工具】Java GUI实现窗口跳转，Java GUI基本使用

它需求很明确，需要切换窗口，需要持久层存储数据。持久层就不搞了，就基本实现我暂时不会的切换窗口吧。

基本实现：

每一个类相当于就是一个单独的页面

每个类中需要定义属性，属性为窗口的"dom"元素
在实例化的时候，把窗口中的属性给实例化，相当于初始化dom，初始化页面。
每个页面需要关联在一起，则需要监听自己窗口中的事件，事件中有切换窗口的代码。
监听到点击事件后，可以操作持久层，很简单。

下面是我建项目的目录

【JDK】【Java工具】Java GUI实现窗口跳转，Java GUI基本使用

Main.java

package com.tangxz.bind;

import com.tangxz.test.Menu;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 15:30
 */
public class Main {
    public static void main(String[] args) {
        new Bind();
    }
}

Bind.java

package com.tangxz.bind;

import com.tangxz.bind.admin.AdminLogin;
import com.tangxz.bind.setting.Setting;
import com.tangxz.bind.user.UserLogin;
import com.tangxz.test.Newframe;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 14:53
 */
public class Bind extends JFrame implements ActionListener {
    private JButton adminLoginButton;
    private JButton userLoginButton;
    private JButton settingButton;

    public Bind() {
        this.setLayout(new FlowLayout());
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        this.setSize(300,200);
        this.setLocation(300,400);
        //监听右上角的退出按钮
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });
        adminLoginButton = new JButton("管理员登录");
        userLoginButton = new JButton("用户登录");
        settingButton = new JButton("系统设置");
        adminLoginButton.setBounds(100, 20, 165, 25);
        userLoginButton.setBounds(100, 50, 165, 25);
        settingButton.setBounds(100, 80, 165, 25);

        this.add(adminLoginButton);
        this.add(userLoginButton);
        this.add(settingButton);

        adminLoginButton.addActionListener(this);
        userLoginButton.addActionListener(this);
        settingButton.addActionListener(this);


        this.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == adminLoginButton){
            this.dispose();
            new AdminLogin();
        }else if(e.getSource() == userLoginButton){
            this.dispose();
            new UserLogin();
        }else if(e.getSource() == settingButton){
            this.dispose();
            new Setting();
        }
    }
}

UserLogin.java

package com.tangxz.bind.user;

import com.tangxz.bind.admin.AdminIndex;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 14:53
 */
public class UserLogin extends JFrame implements ActionListener {
    private JButton submit;
    private JTextField user_num;
    private JPasswordField user_pwd;
    private JLabel info;

    public UserLogin() {
        setLayout(new FlowLayout());
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        this.setSize(300, 200);
        this.setLocation(300, 400);
        //监听右上角的退出按钮
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });
        //设置输入框
        user_num = new JTextField(20);
        user_num.setBounds(100, 20, 165, 25);
        this.add(user_num);
        user_pwd = new JPasswordField(20);
        user_pwd.setBounds(100, 20, 165, 25);
        this.add(user_pwd);

        //设置按钮
        submit = new JButton("登录");
        this.add(submit);
        submit.addActionListener(this);
        //设置提示消息
        info = new JLabel("", JLabel.CENTER);
        info.setSize(350, 100);
        info.setBackground(new Color(102, 14, 122));
        this.add(info);

        this.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == submit) {
            //登录验证
            if (user_num.getText().isEmpty() || !user_num.getText().equals("user")) {
                System.out.println(user_num.getText());
                info.setText("用户名错误!");
            } else if (new String(user_pwd.getPassword()).isEmpty() || !new String(user_pwd.getPassword()).equals("123")) {
                System.out.println(new String(user_pwd.getPassword()));
                info.setText("密码错误");
            } else {
                //关闭当前窗口
                this.dispose();
                new UserIndex();
            }
        }
    }
}

UserIndex.java

package com.tangxz.bind.user;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 14:59
 */
public class UserIndex extends JFrame implements ActionListener {
    private JButton showMoney;
    private JButton getMoney;
    private JLabel info;
    private String money;
    public UserIndex() {
        this.setLayout(new FlowLayout());
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        this.setSize(300,200);
        this.setLocation(300,400);
        //监听右上角的退出按钮
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });

        showMoney = new JButton("显示金额");
        getMoney = new JButton("取钱");
        this.add(showMoney);
        this.add(getMoney);

        showMoney.addActionListener(this);
        getMoney.addActionListener(this);


        //设置提示消息
        info = new JLabel("", JLabel.CENTER);
        info.setSize(350, 100);
        info.setBackground(new Color(102,14,122));
        this.add(info);

        this.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == showMoney){
            money = "123.00";
            info.setText(money);
        }else if(e.getSource() == getMoney){
            money = "现在有123.00";
            info.setText(money);
        }
    }
}

AdminLogin.java

package com.tangxz.bind.admin;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 15:00
 */
public class AdminLogin extends JFrame implements ActionListener {
    private JButton submit;
    private JTextField user_num;
    private JPasswordField user_pwd;
    private JLabel info;
    public AdminLogin() {
        setLayout(new FlowLayout());
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        this.setSize(300,200);
        this.setLocation(300,400);
        //监听右上角的退出按钮
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });
        //设置输入框
        user_num = new JTextField(20);
        user_num.setBounds(100, 20, 165, 25);
        this.add(user_num);
        user_pwd = new JPasswordField(20);
        user_pwd.setBounds(100, 20, 165, 25);
        this.add(user_pwd);

        //设置按钮
        submit = new JButton("登录");
        this.add(submit);
        submit.addActionListener(this);
        //设置提示消息
        info = new JLabel("", JLabel.CENTER);
        info.setSize(350, 100);
        info.setBackground(new Color(102,14,122));
        this.add(info);

        this.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == submit){
            //登录验证
            if (user_num.getText().isEmpty()||!user_num.getText().equals("Tangxz")){
                System.out.println(user_num.getText());
                info.setText("用户名错误!");
            }else if (new String(user_pwd.getPassword()).isEmpty()||!new String(user_pwd.getPassword()).equals("123")){
                System.out.println(new String(user_pwd.getPassword()));
                info.setText("密码错误");
            }else {
                //关闭当前窗口
                this.dispose();
                new AdminIndex();
            }
        }
    }
}

AdminIndex.java

package com.tangxz.bind.admin;

import com.tangxz.bind.user.UserLogin;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 15:00
 */
public class AdminIndex extends JFrame implements ActionListener {
    private JButton showAllUser;
    private JButton setting;
    private JLabel info;
    private String allUser;

    public AdminIndex() {
        this.setLayout(new FlowLayout());
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        this.setSize(300,200);
        this.setLocation(300,400);
        //监听右上角的退出按钮
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent windowEvent) {
                System.exit(0);
            }
        });

        showAllUser = new JButton("显示全部用户");
        setting = new JButton("设置");
        this.add(showAllUser);
        this.add(setting);

        showAllUser.addActionListener(this);
        setting.addActionListener(this);


        //设置提示消息
        info = new JLabel("", JLabel.CENTER);
        info.setSize(350, 100);
        info.setBackground(new Color(102,14,122));
        this.add(info);

        this.setVisible(true);
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == showAllUser){
            allUser = "我就是全部用户";
            info.setText(allUser);
        }else if(e.getSource() == setting){
            allUser = "我就是设置";
            info.setText(allUser);
        }
    }
}

Setting.java（懒得写了）

package com.tangxz.bind.setting;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * @author: Tangxz
 * @email: 1171702529@qq.com
 * @cate: 2020/11/09 15:00
 */
public class Setting extends JFrame implements ActionListener {
    public Setting() {
    }
    @Override
    public void actionPerformed(ActionEvent e) {

    }
}

本文地址：https://blog.csdn.net/weixin_42295814/article/details/109581000

【JDK】【Java工具】Java GUI实现窗口跳转，Java GUI基本使用

基本实现：

Main.java

Bind.java

UserLogin.java

UserIndex.java

AdminLogin.java

AdminIndex.java

Setting.java（懒得写了）

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