https://www.jianshu.com/p/cdca9a30b86b
在IDEA里面建了一个GUI的基础，然后，我想在线程里面
更改界面上的label的text属性，结果改不了，界面上的text属性没有变化。
请问该怎么写代码才能改？
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.image.ImageObserver;
import java.text.AttributedCharacterIterator;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
public class Form_Main {
private JButton button1;
private JPanel panel1;
private JLabel mylabel;
Thread_Run_Voice_Merge thread_Run_Voice_Merge = null;
public static void main(String[] args) {
JFrame frame = new JFrame("Form_Main");
frame.setContentPane(new Form_Main().panel1);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
frame.setLocationRelativeTo(new Form_Main().panel1);
//frame.setLocation(300,300);
frame.setSize(300, 300);
new Form_Main().RunThread();
}
public void RunThread() {
thread_Run_Voice_Merge = new Thread_Run_Voice_Merge();
new Thread(thread_Run_Voice_Merge).start();
System.out.println("线程启动了");
}
public class Thread_Run_Voice_Merge implements Runnable {
public Thread_Run_Voice_Merge() {
}
@Override
public void run() {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
mylabel.setText("你好");
mylabel.updateUI();
mylabel.repaint();
mylabel.revalidate();
panel1.updateUI();
panel1.repaint();
panel1.revalidate();
}
});
}
}
}
