MouseListener和MouseMotionListener鼠标事件(Java)

使用鼠标触发相应事件：

 代码实现：

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

//鼠标事件
public class MouseListenerTest extends JFrame implements MouseListener, MouseMotionListener {
    JPanel p1 = new JPanel();
    JPanel p2 = new JPanel();
    JPanel p3 = new JPanel();
    JLabel lb1 = new JLabel();
    JLabel lb2 = new JLabel();
    JLabel lb3 = new JLabel();
    JLabel lb4 = new JLabel();
    JLabel lb5 = new JLabel();
    JLabel lb6 = new JLabel();
    JLabel lb7 = new JLabel();
    Box box = Box.createVerticalBox();
    public void init(){
        this.setTitle("鼠标实例");
        this.add(p1);
        this.add(p2);
        this.add(p3);
        p1.setLayout(new FlowLayout());//添加流水布局管理器
        p2.setLayout(new FlowLayout());
        p3.setLayout(new FlowLayout());
        p1.setBounds(0,0,150,200);//设置面板大小和位置
        p2.setBounds(150,0,150,200);
        p2.setBackground(Color.blue);            //设置中间面板的背景颜色
        p3.setBounds(300,0,150,200);
        p1.add(lb1);  //将JLabel组件添加到面板中
        p1.add(lb2);
        p1.add(lb3);
        p2.add(lb6);
        p2.add(lb7);
        p3.add(lb4);
        p3.add(lb5);
        p1.addMouseListener(this);//鼠标点击事件
        p2.addMouseMotionListener(this);//鼠标移动事件
        p3.addMouseListener(this);//鼠标点击事件

        this.setLayout(null);
        this.setBounds(700,300,450,200);
        this.setVisible(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        //鼠标单击事件，在鼠标单击时触发
        lb5.setText("鼠标单击了一次!");
    }

    @Override
    public void mousePressed(MouseEvent e) {
        //鼠标按下事件，在鼠标按下时触发
        int x = e.getX();
        int y = e.getY();
        lb2.setText("鼠标被按下 X轴 = "+x+"Y轴 = "+y);
    }

    @Override
    public void mouseReleased(MouseEvent e) {
        //鼠标释放事件，在鼠标释放时触发
        lb1.setText("鼠标被释放了!");
    }

    @Override
    public void mouseEntered(MouseEvent e) {
        //鼠标进入事件，在鼠标进入某控件时触发
        lb4.setText("鼠标进入当前控件了!");
    }

    @Override
    public void mouseExited(MouseEvent e) {
        //鼠标退出事件，在鼠标退出某控件时触发
        lb3.setText("鼠标退出当前控件了!");
    }

    @Override
    public void mouseDragged(MouseEvent e) {
        //鼠标拖拽事件，在鼠标拖动的时候触发
        lb7.setText("鼠标拖动了!");
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        //鼠标移动事件，在鼠标移动时触发
        lb6.setText("鼠标移动了!");
    }

    public static void main(String[] args) {
        new MouseListenerTest().init();
    }
}

标签：Java,鼠标,MouseListener,void,MouseMotionListener,add,new,JLabel,public
来源： https://blog.csdn.net/weixin_54702911/article/details/122135769