import java.awt.*;
import java.awt.event.*;
public class TestFrame extends JFrame{
public JPanel testPanel = null;
public JButton testButton = null;
public JFrame testFrame = null;
public TestFrame(){
try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}catch (Exception ex) {
System.out.println("Exception: " + ex);
}
testFrame = this;
Dimension dimensions = Toolkit.getDefaultToolkit().getScreenSize();
setSize(dimensions.width /2, dimensions.height /2);
setLocation(dimensions.width/2-dimensions.width/4,dimensions.height/2-dimensions.height/4);
testPanel= new JPanel();
testButton= new JButton("开始线程");
testPanel.add(testButton);
getContentPane().add(testPanel);
testButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
TestThread testThread = new TestThread();//新生成一个处理事务线程
testThread.start();
(new ThreadDiag(testFrame,testThread,"正在执行程序，请等待")).start();
}
});
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public static void main(String[] args) {
TestFrame testFrame2 = new TestFrame();
testFrame2.setTitle("线程等待测试");
testFrame2.show();
}
}
class TestThread extends Thread{
public void run(){
for (int i = 1; i < 100000 ; i++ ){
System.out.println(i);
}
}
}
class ThreadDiag extends Thread{
private Thread currentThread = null;//实际调用时就是TestThread事务处理线程
private String messages = "";//提示框的提示信息
private JFrame parentFrame = null;//提示框的父窗体
private JDialog clueDiag = null;// "线程正在运行"提示框
private Dimension dimensions = Toolkit.getDefaultToolkit().getScreenSize();
private int width = dimensions.width / 4, height = 60;
private int left = 0, top = 0;
public ThreadDiag(JFrame parentFrame, Thread currentThread, String messages){
this.parentFrame = parentFrame;
this.currentThread = currentThread;
this.messages = messages;
initDiag();//初始化提示框
}
protected void initDiag(){
clueDiag = new JDialog(parentFrame,"正在执行，请等待...",false);
clueDiag.setCursor(new Cursor(Cursor.WAIT_CURSOR));
JPanel testPanel = new JPanel();
JLabel testLabel = new JLabel(messages);
clueDiag.getContentPane().add(testPanel);
testPanel.add(testLabel);
(new DisposeDiag()).start();//启动关闭提示框线程
}
public void run(){
//显示提示框
int left = (dimensions.width - width)/2;
int top = (dimensions.height - height)/2;
clueDiag.setSize(new Dimension(width,height));
clueDiag.setLocation(left, top);
clueDiag.show();
}
class DisposeDiag extends Thread{
public void run(){
try{
currentThread.join();//等待事务处理线程结束
}catch(InterruptedException e){
System.out.println("Exception:" + e);
}
clueDiag.dispose();//关闭提示框
}
}
} </td> </tr> <tr>
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