java swing 关闭时终止所有线程_java – 即使任务完成,SwingWorker线程也不关闭？

要详细说明我的评论,请查看代码修改的输出：

import java.awt.BorderLayout;

import java.awt.event.*;

import javax.swing.*;

public class Foo002 {

public static void main(String[] args) {

final JFrame f = new JFrame();

f.setLayout(new BorderLayout());

f.setSize(400, 400);

JButton b = new JButton("B1");

f.add(b, BorderLayout.CENTER);

b.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

new SwingWorker() {

@Override

protected Object doInBackground() throws Exception {

Thread current = Thread.currentThread();

System.out.printf("ID: %d, Name: %s%n", current.getId(), current.getName());

System.out.println("Active Count: " + Thread.activeCount());

return null;

}

}.execute();

}

});

f.setVisible(true);

}

}