等待一个SwingWorker完成后再执行另一个

SwingWorker<Void, Void> worker1 = new SwingWorker<Void, Void>() {
    @Override
    protected Void doInBackground() throws Exception {
        // 执行第一个任务
        return null;
    }
};

worker1.addPropertyChangeListener(new PropertyChangeListener() {
    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        if (evt.getPropertyName().equals("state") && evt.getNewValue() == SwingWorker.StateValue.DONE) {
            // 第一个任务完成后执行的操作
        }
    }
});

worker1.execute();

worker1.addPropertyChangeListener(new PropertyChangeListener() {
    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        if (evt.getPropertyName().equals("state") && evt.getNewValue() == SwingWorker.StateValue.DONE) {
            SwingWorker<Void, Void> worker2 = new SwingWorker<Void, Void>() {
                @Override
                protected Void doInBackground() throws Exception {
                    // 执行第二个任务
                    return null;
                }
            };
            worker2.execute();
        }
    }
});