chooseaward.java

抽奖程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.*;

public class ChooseAward extends JFrame
{
	
	private static final long serialVersionUID = 7510608124693852355L;
    JButton b_start = new JButton("开始");
    JButton b_stop = new JButton("停止");
	
	
	JPanel p_north=new JPanel();
	JPanel p_center=new JPanel();
	JPanel p_south=new JPanel();

	JMenuBar menubar=new JMenuBar();
	
	JMenu fileMenu=new JMenu("加载数据");
	
	private JMenuItem[] filem={new JMenuItem("选择文件"),new JMenuItem("保存"),new JMenuItem("退出")
	};
	
	
	JTextField t_identNumber = new JTextField(); 

	Vector v_identNumber = new Vector(); 

	Vector v_printident = new Vector();

	JLabel l_information = new JLabel();

	JLabel l_identNumber = new JLabel();

	JLabel l_sysinformation = new JLabel("系统信息:");

	JFileChooser filechooser = new JFileChooser(); 

	//选择随机数的线成
	public ChooseThread awardThread = null;

	int chooseTime = 0;
	int rnum;
	int n;
	public ChooseAward()
	{
		super("号码抽取系统");
		t_identNumber.setEditable(false);
		Container contentPane = getContentPane();
		
		contentPane.setLayout(new BorderLayout());
		
		filem[0].addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				b_loadident_ActionPerformed(e);
				}
			});
		b_start.addActionListener(new ActionListener()
		{  
					public void actionPerformed(ActionEvent e)
					{
						b_start_ActionPerformed(e);
					}
				});
		b_stop.addActionListener(new ActionListener()
		{
					public void actionPerformed(ActionEvent e)
					{
						b_stop_ActionPerformed(e);
					}
				});
		/*filem[1].addActionListener(new ActionListener()
		{
					public void actionPerformed(ActionEvent e)
					{
						b_printaward_ActionPerformed(e);
					}
				});*/
		filem[2].addActionListener(new ActionListener()
		{
					public void actionPerformed(ActionEvent e)
					{
						b_close_ActionPerformed(e);
					}
				});
		addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				System.exit(0);
			}
		});
		
		for(int i=0;i<filem.length;i++)
		{
			fileMenu.add(filem[i]);
			fileMenu.addSeparator();
		}
		
		menubar.add(fileMenu);
	
		setJMenuBar(menubar);
		
		p_south.setLayout(new FlowLayout(FlowLayout.LEFT));
		l_information.setForeground(Color.blue);
		p_south.add(l_sysinformation);
		p_south.add(l_information);
		contentPane.add(p_south,BorderLayout.SOUTH);
		
		Font xuehao=new Font("null",Font.PLAIN,30);
		l_identNumber.setFont(xuehao);
		
		l_identNumber.setHorizontalAlignment(0);
		l_identNumber.setText("手机号");
		
		
		Font number=new Font("null",Font.BOLD,30);
		t_identNumber.setFont(number);
		
		t_identNumber.setForeground(Color.red);
		t_identNumber.setHorizontalAlignment(0);
		
		
		
		
		p_north.setLayout(new GridLayout(2,1));
		p_north.add(l_identNumber);
		p_north.add(t_identNumber);
		
		
		contentPane.add(p_north,BorderLayout.NORTH);
		
		p_center.setLayout(new GridLayout(1,2,10,0));
		
		p_center.add(b_start);
		p_center.add(b_stop);
		
		
		
		contentPane.add(p_center,BorderLayout.CENTER);
		
	}

	/*
	 * 加载按钮事件方法
	 */
	public void b_loadident_ActionPerformed(ActionEvent e)
	{
		int k = 0;
		
		BufferedReader reader = null;
		int i = filechooser.showOpenDialog(this); 
		
		if (i == JFileChooser.APPROVE_OPTION)
		{ 
			File f = filechooser.getSelectedFile(); 
			try
			{
				l_information.setText("数据加载中，请稍等...");
				FileInputStream in = new FileInputStream(f);
				InputStreamReader isr = new InputStreamReader(in, "utf-8"); 
				reader = new BufferedReader(isr);
				
				while (true)
				{
					//读取一个文本行
					String data = reader.readLine();
					System.out.println(data);
					if (data == null)
					{
						l_information.setText("数据加载完成！");
					    break;
					}
					
					Vector v = this.apart(data);
					
					if (v == null)
					{
						l_information.setText("数据格式不正确，请重新加载！");
						return;
					}

					
					try
					{
					v_identNumber.add(k, v.elementAt(0)); 
					 
					k++;
					}
					
					catch(Exception e4)
					{
						System.out.println("格式中没有分隔符号出现的错误");
						l_information.setText("导入的数据格式错误！");
						break;
					}

				}
			} catch (Exception ex)
			{
				ex.printStackTrace(); // 输出出错信息
			}
		}
	}

	/*
	 * 启动按钮的事件
	 */
	public void b_start_ActionPerformed(ActionEvent e)
	{
		//判断存储两个标记的向量中是否为空
		if (v_identNumber.size() <= 0)
		{
			l_information.setText("数据没有加载,请加载数据!");
		}
		else
		{
			if (chooseTime >1)
			{
				l_information.setText("为了确保所有用户的随机性,请重新启动程序!");
			} 
			else//执行....
			{
				awardThread = new ChooseThread(this);
				awardThread.changeflag_start();
				l_information.setText("将产生:20个随机号码");
				l_identNumber.setText("选取中...");
				b_start.setEnabled(false);
				b_stop.setEnabled(true);
			}
		}
	}

	/*
	 * 暂停按钮的事件
	 */
	public void b_stop_ActionPerformed(ActionEvent e)
	{
		//将跳转的数字置于停止状态
		awardThread.changeflag_stop();
		String awardmessage = "";
		chooseTime++;
		String str_name = "";
		String message="";
		Random   r=new   Random();
		if(chooseTime > 1){
			JOptionPane.showMessageDialog(ChooseAward.this, "为了确保所有用户的随机性,请重新启动程序");
			b_start.setText("开始");
			awardThread.changeflag_stop();
		}
		else{
			for(rnum=19;rnum>-1;rnum--)   
			  {   
			 
			  n=r.nextInt(rnum+1);   
			
			  String ss=(String)v_identNumber.get(n);   
			  v_printident.addElement(ss + "\r\n");
			  v_identNumber.remove(n);  
	          }
			
	
		l_identNumber.setText("被选中");
		b_start.setText("继续");
		message = "20个随机号码已被抽中";
		JOptionPane.showMessageDialog(this, message);
		try
		{
			FileOutputStream fs_out = new FileOutputStream("D:\\result.txt");
			DataOutputStream out = new DataOutputStream(fs_out);
			for (int i = 0; i < v_printident.size(); i++)
			{
				System.out.println(v_printident.elementAt(i));//测试用
				out.writeUTF((String) v_printident.elementAt(i).toString().trim() + "\r\n");
			}
			out.close();
			l_information.setText("文件输出成功！保存在D:\\result.txt");
		} catch (FileNotFoundException fe)
		{
			System.err.println(fe);
		} catch (IOException ioe)
		{
			System.err.println(ioe);
		}
		b_start.setEnabled(true);
		b_stop.setEnabled(false);
		}
	}


	public void b_printaward_ActionPerformed(ActionEvent e)
	{
		try
		{
			FileOutputStream fs_out = new FileOutputStream("D:\\result.txt");
			DataOutputStream out = new DataOutputStream(fs_out);
			for (int i = 0; i < v_printident.size(); i++)
			{
				System.out.println(v_printident.elementAt(i));//测试用
				String outprint = (String) v_printident.elementAt(i);
				out.writeUTF(new String(outprint.getBytes("gb2312")) + "\r\n");
			}
			out.close();
			l_information.setText("文件输出成功！保存在D:\\result.txt");
		} catch (FileNotFoundException fe)
		{
			System.err.println(fe);
		} catch (IOException ioe)
		{
			System.err.println(ioe);
		}

	}
	
	public void b_close_ActionPerformed(ActionEvent e)
	{
		System.exit(0);
    }

	public Vector apart(String src)
	{
		
		Vector<String> v = new Vector<String>();
		v.addElement(src);
		return v;
	}

	
	public static void main(String[] args)
	{
		
		JFrame.setDefaultLookAndFeelDecorated(true);
		ChooseAward award = new ChooseAward();
		award.setSize(333, 209);
		award.setLocationRelativeTo(null);
		award.setVisible(true);
		award.setAlwaysOnTop(true);
		award.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}


class ChooseThread extends Thread
{
	private boolean runFlag = true;
	private ChooseAward chooseAward = null;

	Random randomNumber = new Random();

	public ChooseThread(Object obj)
	{
		start();
		chooseAward = (ChooseAward) obj;
	}

	public void start()
	{
		runFlag = false;
		super.start();
	}

	public void changeflag_start()
	{
		runFlag = true;
	}

	public void changeflag_stop()
	{
		runFlag = false;
	}


	public void run()
	{
		while (runFlag)
		{
			
			int num = randomNumber.nextInt(chooseAward.v_identNumber.size());
            chooseAward.t_identNumber.setText((String) chooseAward.v_identNumber.elementAt(num));
			try
			{
				sleep(10);
				
			} 
			catch (Exception e)
			{
				e.printStackTrace();
			}
		}
	}
}