myframe.java

多线程与并发处理是程序设计好坏优劣的重要课题

import java.io.IOException;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;

public class MyFrame extends JFrame implements ActionListener {
    private final JButton executeButton = new JButton("Execute");
    private final JButton cancelButton = new JButton("Cancel");
    public MyFrame() {
        super("MyFrame");
        getContentPane().setLayout(new FlowLayout());
        getContentPane().add(new JLabel("Two-Phase Termination Sample"));
        getContentPane().add(executeButton);
        getContentPane().add(cancelButton);
        executeButton.addActionListener(this);
        cancelButton.addActionListener(this);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        pack();
        setVisible(true);
    }
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == executeButton) {
            // 开始执行服务
            Service.service();
        } else if (e.getSource() == cancelButton) {
            // 终止服务
            Service.cancel();
        }
    }
}