Java GUI -在异步任务完成之前，进度栏不会更新

import javax.swing.*;
import java.awt.*;
import java.util.List;

public class MySwingWorker extends SwingWorker<Void, Integer> {
    private JProgressBar progressBar;

    public MySwingWorker(JProgressBar progressBar) {
        this.progressBar = progressBar;
    }

    @Override
    protected Void doInBackground() throws Exception {
        // 执行异步任务的逻辑
        for (int i = 0; i <= 100; i++) {
            Thread.sleep(100); // 模拟耗时操作
            publish(i); // 发布任务的中间结果
        }
        return null;
    }

    @Override
    protected void process(List<Integer> chunks) {
        // 在主线程中更新进度栏的值
        int progress = chunks.get(chunks.size() - 1);
        progressBar.setValue(progress);
    }

    @Override
    protected void done() {
        // 异步任务执行完成后的处理
        progressBar.setValue(100);
        JOptionPane.showMessageDialog(null, "任务完成");
    }
}