java课程设计---个人博客 彩票抽奖程序 201821123098 钟海清

目录

1.团队课程设计博客链接

团队博客:https://www.cnblogs.com/zhonghaiqing/p/12173066.html

2.个人负责模块或任务说明

我主要负责主要负责管理员类,实现滚动抽奖、自动注册购买彩票以及查看中奖信息和用户信息的方法

3.自己的代码提交记录截图

java课程设计---个人博客 彩票抽奖程序 201821123098 钟海清
java课程设计---个人博客 彩票抽奖程序 201821123098 钟海清

4.自己负责模块或任务详细说明

滚动抽奖

  • 代码
public class MyThread extends Thread{//使用Runnable实现多线程可以达到资源共享目的
    JTextField jf;
    public volatile Boolean isPause=true;//暂停标志
    public MyThread(JTextField jf) {
        super();
        this.jf = jf;
    }
    @Override
    public void run() {      
        while(true){
            try {
                MyThread.sleep(100);
            }catch(InterruptedException e) {
                e.printStackTrace();
            }
            while(isPause) {
                int[] ball = new int[7];
                for(int i = 0;i<7;i++) {
                    ball[i] = (int) (1+(Math.random()*36));
                    for(int j=0;j<i;j++) {
                        if(ball[i]==ball[j]) i--;//随机产生不重复的七个数字
                    }
                }
                Arrays.sort(ball);          
                jf.setText(ball[0]+","+ball[1]+","+ball[2]+","+ball[3]+","+ball[4]+","+ball[5]+","+ball[6]);
            }
            
        }       
    }
    public void stopping() {
        isPause=false;
    }
}
  • 详解

自动注册

  • 代码
public void Auto_Register(UAndT uat) throws IOException {
        String nikename = generateString();
        String name = generateString();
        String password = generateString();
        Random random = new Random();
        int balance = random.nextInt(100);
        String phone = generatePhoneString();
        User newUsers = new User(nikename, name, phone, password, balance); // 注册账户
        Date date = new Date();
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String pool = generateNumber();// 随机号码
        int multiple = random.nextInt(1000);
        Tickets ticket = new Tickets();
        ticket.setNumber(pool);
        ticket.setAmount(multiple);
        uat.buyTickets(newUsers, ticket);
        
        String filename = "txt\\UAndT.txt";
        //int r = countLines(filename);
        try (BufferedWriter bw = new BufferedWriter(new FileWriter(filename, true))) {
            bw.write(dateFormat.format(date));
            bw.write(" ");
            bw.write(newUsers.getName());
            bw.write(" ");
            bw.write(pool);
            //bw.write(UserGui.getUtlist().get(r).getTicket().getNumber());
            bw.write(" ");
            bw.write(Integer.toString(multiple));
            bw.write(" ");
            bw.newLine();
            bw.flush();
            bw.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        newUsers.register();
    }

    public void AutoRegister(String string) {
        UAndT uat = new UAndT();
        int num = Integer.parseInt(string);
        Thread t1 = new Thread(new Runnable() {
            @Override
            public void run() {
                // TODO Auto-generated method stub
                for (int i = 0; i < num; i++) {
                    try {
                        Auto_Register(uat);
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    // UserGui.getUtlist().add(uat);
                }
            }
        });
        t1.start();
    }
  • 详解

读取表格信息

  • 代码
// 历史开奖
    private Vector<Vector<String>> createTableModelData_historyAward() {

        Vector<Vector<String>> data = new Vector<Vector<String>>();
        String t = null;
        try {
            FileReader fr1 = null;
            try {
                String fileName = "txt/History.txt";
                fr1 = new FileReader(fileName);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            BufferedReader br = new BufferedReader(fr1);
            while ((t = br.readLine()) != null) {
                String[] s = t.split("\\s+"); // 通过空格分割字符串数组
                Vector<String> rowData = new Vector<String>();

                // rowData.add("i");
                String temp = s[0] + " " + s[1];
                // rowData.add(s[0]);
                rowData.add(temp);
                rowData.add(s[2]);
                rowData.add(s[3]);
                rowData.add(s[4]);
                rowData.add(s[5]);
                data.add(rowData);
            }
            fr1.close();
            br.close();

        } catch (IOException e) {
            // TODO 自动生成的 catch 块
            e.printStackTrace();

        }
        return data;
    }

    private Vector<String> createColumnNames_historyAward() {
        Vector<String> columnNames = new Vector<String>();
        // columnNames.add("序号");
        columnNames.add("日期");
        columnNames.add("号码");
        columnNames.add("奖池");
        columnNames.add("用户名");
        columnNames.add("中奖金额");
        return columnNames;
    }

    public DefaultTableModel historyAward() {
        DefaultTableModel model = null;
        // 表头(列名)
        Vector<String> columnNames = createColumnNames_historyAward();
        Vector<Vector<String>> data = createTableModelData_historyAward();
        // 创建一个默认的表格模型
        model = new DefaultTableModel(data, columnNames);
        return model;
    }
  • 详解

5.课程设计感想

学习要在实践中摸索才有实际成效,在编写函数的同时也提升了查找关键字的能力。这次课设可以实现学生信息的增删改查、对单个学生各科成绩画出柱状分布图功能和将学生信息汇总成excel功能,但还未实现多名学生同时生成成绩对比图,柱状图的画面质感也有待改进。我们希望在暑假能进一步完善功能,做出真正能够投入使用的学生成绩管理系统。

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