没事了自己写一个进度条，测试通过
import javax.swing.*;import java.awt.*;import java.awt.event.*;public class Test extends JFrame {private JButton button = null;private JButton OKButton = null;private JProgressBar progressBar = null;JPanel panel = null;private int value = 0;public Test(){Container contentPane = getContentPane();progressBar = new JProgressBar();button = new JButton("升级");OKButton = new JButton("完成");panel = new JPanel();panel.add(button);panel.add(OKButton);JPanel panel_progress = new JPanel();panel_progress.add(progressBar);progressBar.setString("升级中……");progressBar.setForeground(Color.RED);progressBar.setValue(0);progressBar.setStringPainted(true); //显示提示信息progressBar.setPreferredSize(new Dimension(300,20));//progressBar.setBorder(BorderFactory.createEtchedBorder());//设置按钮的大小button.setPreferredSize(new Dimension(60,30));OKButton.setPreferredSize(new Dimension(60,30));button.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e) {new ProgressBarThread().start();}});OKButton.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){System.exit(0);}});OKButton.setEnabled(false);setSize(500, 500);setLayout(new BorderLayout());contentPane.add(panel,BorderLayout.NORTH);contentPane.add(panel_progress,BorderLayout.CENTER);setVisible(true);setDefaultCloseOperation(EXIT_ON_CLOSE);}class ProgressBarThread extends Thread{public void run() {while(value<=100){value += 10;try {Thread.sleep(500);} catch (InterruptedException e) {e.printStackTrace();}progressBar.setValue(value);if(value == 100){button.setEnabled(false);OKButton.setEnabled(true);}}}}public static void main(String[] args) {new Test();}}