我正在尝试根据当前时间启用/禁用jbutton。应用程序更大，我有一套药物有一套药物。如果当前时间在某个药物摄入间隔内，则我要启用一个按钮。按钮只是拒绝启用。这是我的密码：

public class MainPanel implements Runnable {
private Thread thread;
public MainPanel(){
        ....ui code
        contentPanel.add(yourMedicationPlansLabel);
        ... 
        root.setLayout(null);
        root.add(contentPanel);
        root.setSize(200, 200);
thread = new Thread(this);
thread.start();
}
@Override
    public void run() {
        if(medicationPlanSet != null){
            updateMedicationPlans(medicationPlanSet);
        }
        while(thread.isAlive()) {
            DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd MMMM yyyy, EEEE, HH:mm:ss");
            LocalDateTime now = LocalDateTime.now();
            time.setText("Today is " + dtf.format(now) + ".");
            try {
                thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            root.getRootPane().updateUI();
        }
    }

这是更新方法：

public void updateMedicationPlans(Set<MedicationPlan> medicationPlanSet)

        for (MedicationPlan medicationPlan : medicationPlanSet) {
            for (Medication medication : medicationPlan.getMedicationSet()) {

                JLabel medicationLabel = new JLabel(medication.getName() + " " + medication.getDosage() + " mg");
                medicationLabel.setBounds(10, y, 200, 30);
                medicationLabel.setForeground(Color.decode("#3e0103"));

                button = new JButton("Taken");
                button.setBounds(320, y, 80, 30);
                button.setForeground(Color.decode("#3e0103"));
                button.setEnabled(false);

                JPanel checksPanel = new JPanel();
                checksPanel.setLayout(null);
                checksPanel.setBackground(Color.white);
                checksPanel.setBounds(210, y + 5, 100, 20);

                int x = 0;
                boolean inTime = false;
                String[] intakeIntervals = medicationPlan.getIntakeInterval().split(",");
                for(String intakeInterval : intakeIntervals) {
                    String from = intakeInterval.split("-")[0].concat(":00");
                    String to = intakeInterval.split("-")[1].concat(":00");

                    if(checkTime(from, to)){
                        inTime = true;
                    }

                    System.out.println(inTime);

                    JLabel canBeTakenLabel = new JLabel();
                    canBeTakenLabel.setBounds(x, 0, 20, 20);
                    canBeTakenLabel.setIcon(canBeTakenImage);
                    checksPanel.add(canBeTakenLabel);
                    x += 25;
                }

                if(inTime) {
                    button.setEnabled(true);
                    root.repaint();
                }
                contentPanel.add(button);
                contentPanel.add(medicationLabel);
                contentPanel.add(checksPanel);
                y += 30;
            }
        }
    }

还尝试将update方法放入while（isalive）和root.updateui（）中，但没有任何效果。