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();
	}


}

有什么不足的地方欢迎大家指导……