equipment-cs/KeyMonitorApp/src/MyApp.java

import java.awt.Container;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;

public class MyApp extends JFrame implements KeyboardListener {
	private static JdbcCodeDao dao = new JdbcCodeDao();//实例化操作数据库的dao
	private JTextField field;
//	List<String> hisData = new ArrayList<String>();
	 public MyApp()
	    {
	        setTitle("扫码重复检查程序");    //设置显示窗口标题
	        setSize(400,200);    //设置窗口显示尺寸
	        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);    //置窗口是否可以关闭
	        JLabel jl =new JLabel("扫码内容：");    //创建一个标签
	        Container c=getContentPane();    //获取当前窗口的内容窗格
	        c.add(jl);    //将标签组件添加到内容窗格上
	        field = new JTextField();
	        c.add(field);
	        setVisible(true);    //设置窗口是否可见
	        new WindowsKeybordListener().start(this);
	    }
	    public static void main(String[] agrs)
	    {
	        new MyApp();    //创建一个实例化对象
	    }
		@Override
		public void onResult(String str) {
			Code code = dao.findByName(str);
			if (code != null) {
//				JOptionPane.showMessageDialog(null, "数据重复啦！！！", "提示", JOptionPane.ERROR_MESSAGE);
				field.setText("重复扫码:"+str);
				new Thread() {
					public void run() {
						try {
							sleep(500);
						} catch (InterruptedException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						JOptionPane.showMessageDialog(null, "数据重复啦！！！", "提示", JOptionPane.ERROR_MESSAGE);
					}
				}.start();
			} else {
				field.setText(str);
				Code newCode = new Code();
				newCode.setName(str);
				dao.add(newCode);
				System.out.println("添加扫码到的数据成功了");
			}
		}
}