import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.Toolkit; import javax.swing.JLabel; import javax.swing.WindowConstants; public class showMessageFrame extends javax.swing.JFrame { private JLabel text; Toolkit tk = Toolkit.getDefaultToolkit(); Dimension screensize = tk.getScreenSize(); int height = screensize.height; int width = screensize.width; private String str = null; public showMessageFrame(String str) { this.str = str; new Thread(new Runnable() { @Override public void run() { initGUI(); } }).start(); } private void initGUI() { try { setUndecorated(true); setLocationRelativeTo(null); setVisible(true); setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); { text = new JLabel("<html>" + str + "</html>", JLabel.CENTER); getContentPane().add(text, BorderLayout.CENTER); text.setBackground(new java.awt.Color(255, 251, 240)); } pack(); setBounds(width / 2 - 180, height - 150, 360, 100); try { Thread.sleep(2000); } catch (InterruptedException e1) { e1.printStackTrace(); } dispose(); } catch (Exception e) { e.printStackTrace(); } } }
Swing弹出的提醒无边框,换行使用<br>，2s后自动消失。
