package frame;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
public class ProgressBar implements ActionListener{
private static final String DEFAULT_STATUS =
"Please Waiting";
private JDialog
dialog;
private JProgressBar
progressBar;
private JLabel
lbStatus;
private JButton
btnCancel;
private Window parent;
private Thread thread;
//处理业务的线程
private String
statusInfo;
private String
resultInfo;
private String
cancelInfo;
public
ProgressBar(){
Thread thread = new Thread()
{
public
void run()
{
int index = 0;
while(index < 5)
{
try
{
sleep(1000);
++index;
}
catch(InterruptedException e)
{
e.printStackTrace();
}
}
}
};
ProgressBar.show((Frame)null, thread,
"正在登陆系统,请稍候……", "登陆成功", "登陆失败，请查看数据库是否连接！");
}
public static void
show(Window parent, Thread thread)
{
new ProgressBar(parent, thread, DEFAULT_STATUS,
null, null);
}
public static void
show(Window parent, Thread thread, String statusInfo)
{
new ProgressBar(parent, thread, statusInfo,
null, null);
}
public static void
show(Window parent, Thread thread, String statusInfo,String
resultInfo, String cancelInfo)
{
new ProgressBar(parent, thread, statusInfo,
resultInfo, cancelInfo);
}
private
ProgressBar(Window parent, Thread thread, String statusInfo,String
resultInfo, String cancelInfo)
{
this.parent = parent;
this.thread = thread;
this.statusInfo = statusInfo;
this.resultInfo = resultInfo;
this.cancelInfo = cancelInfo;
initUI();
startThread();
dialog.setVisible(true);
}
private void
initUI()
{
if(parent instanceof Dialog)
{
dialog =
new JDialog((Dialog)parent, true);
}
else if(parent instanceof Frame)
{
dialog =
new JDialog((Frame)parent, true);
}
else
{
dialog =
new JDialog((Frame)null, true);
}
final JPanel mainPane = new JPanel(null);
progressBar = new JProgressBar();
lbStatus = new JLabel("" + statusInfo);
btnCancel = new JButton("Cancel");
progressBar.setIndeterminate(true);
btnCancel.addActionListener(this);
mainPane.add(progressBar);
mainPane.add(lbStatus);
dialog.getContentPane().add(mainPane);
dialog.setUndecorated(true);//除去title
dialog.setResizable(true);
dialog.setSize(390, 100);
dialog.setLocationRelativeTo(parent);
//设置此窗口相对于指定组件的位置
dialog.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE); //
不允许关闭
mainPane.addComponentListener(new
ComponentAdapter()
{
public
void componentResized(ComponentEvent e)
{
layout(mainPane.getWidth(),
mainPane.getHeight());
}
});
}
private void
startThread()
{
new Thread()
{
public
void run()
{
try
{
thread.start(); // 处理耗时任务
// 等待事务处理线程结束
thread.join();
}
catch(InterruptedException
e)
{
e.printStackTrace();
}
finally
{
// 关闭进度提示框
dialog.dispose();
if(resultInfo != null &&
!resultInfo.trim().equals(""))
{
String
title = "消息";
JOptionPane.showMessageDialog(parent, resultInfo,
title,JOptionPane.INFORMATION_MESSAGE);
}
}
}
}.start();
}
private void layout(int
width, int height)
{
progressBar.setBounds(20, 20, 350, 15);
lbStatus.setBounds(20, 50, 350, 25);
btnCancel.setBounds(width - 85, height - 31, 75,
21);
}
@SuppressWarnings("deprecation")
public void
actionPerformed(ActionEvent e)
{
resultInfo = cancelInfo;
thread.stop();
}
public static void
main(String[] args) throws Exception{
new
ProgressBar();
}
}