Java实训 学生信息管理系统 第六天

今天继续写着GUI界面，随着时间的推进和代码的累积，对GUI界面的编写基本上已经达到非常熟悉了，但是还是不能不看例子自己完全写出来，只知道大概流程和界面的设定，在按钮内的定义还是欠缺着功力。
今日书写了：
一、添加添加学生记录窗口

/*
功能：添加学生记录窗口
作者：宋云鹏
时间：2019年6月22日
 */
package net.syp.student.gui;

import net.syp.student.bean.Student;
import net.syp.student.service.Impl.StudentServiceImpl;
import net.syp.student.service.StudentService;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.List;

public class AddStudentFrame extends JFrame {
    //声明面板
    private JPanel panel, pnlCenter, pnlRow1, pnlRow2, pnlRow3, pnlRow4, pnlRow5, pnlRow6, pnlRow7, pnlSouth;
    //声明标签
    private JLabel lblId, lblName, lblSex, lblAge, lblDepartment, lblClass, lblTelephone;
    //声明文本框
    private JTextField txtId, txtName, txtSex, txtAge, txtDepartment, txtClass, txtTelephone;
    //声明按钮
    private JButton btnExit, btnOK, btnCancel;
    /**
     * 当前记录行号
     */
    private int currentRow;
    /**
     * 学生列表
     */
    private List<Student> students;

    /**
     * 构造方法
     *
     * @param title
     */
    public AddStudentFrame(String title) {
        super(title);
        initGUI();
    }

    /**
     * 初始化用户界面
     */
    private void initGUI() {
        // 创建组件
        panel = (JPanel) getContentPane();
        pnlCenter = new JPanel();
        pnlSouth = new JPanel();

        pnlRow1 = new JPanel();
        pnlRow2 = new JPanel();
        pnlRow3 = new JPanel();
        pnlRow4 = new JPanel();
        pnlRow5 = new JPanel();
        pnlRow6 = new JPanel();
        pnlRow7 = new JPanel();

        pnlRow1.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow2.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow3.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow4.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow5.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow6.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow7.setLayout(new FlowLayout(FlowLayout.LEFT));

        lblId = new JLabel("学号：");
        lblName = new JLabel("姓名：");
        lblSex = new JLabel("性别：");
        lblAge = new JLabel("年龄：");
        lblDepartment = new JLabel("系部：");
        lblClass = new JLabel("班级：");
        lblTelephone = new JLabel("电话：");

        txtId = new JTextField(20);
        txtName = new JTextField(20);
        txtSex = new JTextField(20);
        txtAge = new JTextField(20);
        txtDepartment = new JTextField(20);
        txtClass = new JTextField(20);
        txtTelephone = new JTextField(20);
        btnOK = new JButton("确定[O]");
        btnCancel = new JButton("取消[C]");
        btnExit = new JButton("退出[X]");
        btnOK.setMnemonic(KeyEvent.VK_O);
        btnCancel.setMnemonic(KeyEvent.VK_C);
        btnExit.setMnemonic(KeyEvent.VK_X);

        // 添加组件
        panel.setLayout(new BorderLayout());
        panel.add(pnlCenter, BorderLayout.CENTER);
        panel.add(pnlSouth, BorderLayout.SOUTH);
        pnlCenter.setLayout(new GridLayout(7, 1));
        pnlCenter.add(pnlRow1);
        pnlCenter.add(pnlRow2);
        pnlCenter.add(pnlRow3);
        pnlCenter.add(pnlRow4);
        pnlCenter.add(pnlRow5);
        pnlCenter.add(pnlRow6);
        pnlCenter.add(pnlRow7);

        pnlRow1.add(lblId);
        pnlRow1.add(txtId);
        pnlRow2.add(lblName);
        pnlRow2.add(txtName);
        pnlRow3.add(lblSex);
        pnlRow3.add(txtSex);
        pnlRow4.add(lblAge);
        pnlRow4.add(txtAge);
        pnlRow5.add(lblDepartment);
        pnlRow5.add(txtDepartment);
        pnlRow6.add(lblClass);
        pnlRow6.add(txtClass);
        pnlRow7.add(lblTelephone);
        pnlRow7.add(txtTelephone);

        pnlSouth.add(btnOK);
        pnlSouth.add(btnCancel);
        pnlSouth.add(btnExit);

        // 设置窗口属性
        setSize(500, 300);
        setResizable(false);
        pack();
        setLocationRelativeTo(null);
        setTitle("添加学生记录");
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 【确定】按钮单击事件
        btnOK.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 学号非空校验
                if (txtId.getText().trim().equals("")) {
                    JOptionPane.showMessageDialog(null, "学号不能为空！", "增加学生记录", JOptionPane.WARNING_MESSAGE);
                    txtId.requestFocus();
                    return;
                }

                // 年龄数字校验
                if (!isNumber(txtAge.getText().trim())) {
                    JOptionPane.showMessageDialog(null, "注意：年龄全由数字构成！", "增加学生记录", JOptionPane.WARNING_MESSAGE);
                    txtAge.setText("");
                    txtAge.requestFocus();
                    return;
                }

                // 创建学生实体
                Student student = new Student();
                // 设置学生实体属性
                student.setId(txtId.getText().trim());
                student.setName(txtName.getText().trim());
                student.setSex(txtSex.getText().trim());
                student.setAge(Integer.parseInt(txtAge.getText()));
                student.setDepartment(txtDepartment.getText().trim());
                student.setClazz(txtClass.getText().trim());
                student.setTelephone(txtTelephone.getText().trim());

                // 创建学生服务对象
                StudentService studentService = new StudentServiceImpl();
                int count = studentService.addStudent(student);
                // 判断是否添加成功
                if (count > 0) {
                    JOptionPane.showMessageDialog(null, "添加记录成功！", "增加学生记录", JOptionPane.INFORMATION_MESSAGE);
                    txtId.setText("");
                    txtName.setText("");
                    txtSex.setText("");
                    txtAge.setText("");
                    txtDepartment.setText("");
                    txtClass.setText("");
                    txtTelephone.setText("");
                    txtId.requestFocus();
                } else {
                    JOptionPane.showMessageDialog(null, "添加记录失败！", "增加学生记录", JOptionPane.ERROR_MESSAGE);
                }
            }
        });

        // 【取消】按钮单击事件处理
        btnCancel.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                txtId.setText("");
                txtName.setText("");
                txtSex.setText("");
                txtAge.setText("");
                txtDepartment.setText("");
                txtClass.setText("");
                txtTelephone.setText("");
                txtId.requestFocus();
            }
        });

        // 【退出】按钮单击事件处理
        btnExit.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });

        // 【学号】文本框按键事件处理
        txtId.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    if (!txtId.getText().trim().equals("")) {
                        txtName.requestFocus();
                    }
                }
            }
        });

        // 【姓名】文本框按键事件处理
        txtName.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtSex.requestFocus();
                }
            }
        });

        // 【性别】文本框按键事件处理
        txtSex.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtAge.requestFocus();
                }
            }
        });

        // 【年龄】文本框按键事件处理
        txtAge.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtDepartment.requestFocus();
                }
            }
        });

        // 【系部】文本框按键事件处理
        txtDepartment.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtClass.requestFocus();
                }
            }
        });

        // 【班级】文本框按键事件处理
        txtClass.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtTelephone.requestFocus();
                }
            }
        });
    }

     //判断一个字符串是否全是数字

    boolean isNumber(String str) {
        for (int i = 0; i < str.length(); i++) {
            if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                return false;
            }
        }
        return true;
    }

     //主方法
    public static void main(String[] args) {
        new AddStudentFrame("");
    }
}

二、编辑学生记录窗口

/*
功能：编辑学生记录
作者：宋云鹏
时间：2019年6月22日
 */
package net.syp.student.gui;

import net.syp.student.bean.Student;
import net.syp.student.service.Impl.StudentServiceImpl;
import net.syp.student.service.StudentService;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class EditStudentFrame extends JFrame {
    //声明面板
    private JPanel panel,pnlCenter,pnlRow1,pnlRow2,pnlRow3,pnlRow4,pnlRow5,pnlRow6,pnlRow7,pnlSouth,pnlSouth1,pnlSouth2;
    //声明标签
    private JLabel lblId,lblName,lblSex,lblAge,lblDepartment,lblClass,lblTelephone;
    //声明文本框
    private JTextField txtId,txtName,txtSex,txtAge,txtDepartment,txtClass,txtTelephone;
    //声明按钮
    private JButton btnTop,btnPrevious,btnNext,btnBottom,btnExit,btnEdit,btnOK,btnCancel;

    //当前记录行号
    private int currentRow;
    //学生列表
    private List<Student> students;
    //创建学生服务对象
    StudentService studentService;


    //构造方法
    public EditStudentFrame(String title){
        super(title);
        initGUI();
    }

    //初始化用户界面
    private void initGUI(){
        //创建组件
        panel = (JPanel) getContentPane();
        pnlCenter = new JPanel();
        pnlSouth = new JPanel();
        pnlSouth.setLayout(new GridLayout(2,1));

        pnlRow1 = new JPanel();
        pnlRow2 = new JPanel();
        pnlRow3 = new JPanel();
        pnlRow4 = new JPanel();
        pnlRow5 = new JPanel();
        pnlRow6 = new JPanel();
        pnlRow7 = new JPanel();
        pnlSouth1 = new JPanel();
        pnlSouth2 = new JPanel();

        pnlRow1.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow2.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow3.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow4.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow5.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow6.setLayout(new FlowLayout(FlowLayout.LEFT));
        pnlRow7.setLayout(new FlowLayout(FlowLayout.LEFT));

        lblId = new JLabel("学号：");
        lblName = new JLabel("姓名：");
        lblSex = new JLabel("性别：");
        lblAge = new JLabel("年龄：");
        lblDepartment = new JLabel("系部：");
        lblClass = new JLabel("班级：");
        lblTelephone = new JLabel("电话：");

        txtId = new JTextField(40);
        txtName = new JTextField(40);
        txtSex = new JTextField(40);
        txtAge = new JTextField(40);
        txtDepartment = new JTextField(40);
        txtClass = new JTextField(40);
        txtTelephone = new JTextField(40);

        txtId.setEditable(false);
        txtName.setEditable(false);
        txtSex.setEditable(false);
        txtAge.setEditable(false);
        txtDepartment.setEditable(false);
        txtClass.setEditable(false);
        txtTelephone.setEditable(false);

        btnTop = new JButton("第一条[T]");
        btnPrevious = new JButton("上一条[P]");
        btnNext = new JButton("下一条[N]");
        btnBottom = new JButton("最后一条[B]");
        btnExit = new JButton("退出[X]");
        btnEdit = new JButton("编辑[E]");
        btnOK = new JButton("确定[O]");
        btnCancel = new JButton("取消[C]");
        btnTop.setMnemonic(KeyEvent.VK_T);
        btnPrevious.setMnemonic(KeyEvent.VK_P);
        btnNext.setMnemonic(KeyEvent.VK_N);
        btnBottom.setMnemonic(KeyEvent.VK_B);
        btnExit.setMnemonic(KeyEvent.VK_X);
        btnEdit.setMnemonic(KeyEvent.VK_E);
        btnOK.setMnemonic(KeyEvent.VK_O);
        btnCancel.setMnemonic(KeyEvent.VK_C);

        // 添加组件
        panel.setLayout(new BorderLayout());
        panel.add(pnlCenter, BorderLayout.CENTER);
        panel.add(pnlSouth, BorderLayout.SOUTH);
        pnlCenter.setLayout(new GridLayout(7, 1));

        pnlCenter.add(pnlRow1);
        pnlCenter.add(pnlRow2);
        pnlCenter.add(pnlRow3);
        pnlCenter.add(pnlRow4);
        pnlCenter.add(pnlRow5);
        pnlCenter.add(pnlRow6);
        pnlCenter.add(pnlRow7);

        pnlRow1.add(lblId);
        pnlRow1.add(txtId);
        pnlRow2.add(lblName);
        pnlRow2.add(txtName);
        pnlRow3.add(lblSex);
        pnlRow3.add(txtSex);
        pnlRow4.add(lblAge);
        pnlRow4.add(txtAge);
        pnlRow5.add(lblDepartment);
        pnlRow5.add(txtDepartment);
        pnlRow6.add(lblClass);
        pnlRow6.add(txtClass);
        pnlRow7.add(lblTelephone);
        pnlRow7.add(txtTelephone);

        pnlSouth.add(pnlSouth1);
        pnlSouth.add(pnlSouth2);
        pnlSouth1.add(btnTop);
        pnlSouth1.add(btnPrevious);
        pnlSouth1.add(btnNext);
        pnlSouth1.add(btnBottom);
        pnlSouth1.add(btnExit);
        pnlSouth2.add(btnEdit);
        pnlSouth2.add(btnOK);
        pnlSouth2.add(btnCancel);

        //设置面板
        setSize(500,300);
        setVisible(true);
        pack();
        setResizable(false);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //创建学生服务对象
        studentService = new StudentServiceImpl();
        //获取全部学生列表、
        students = studentService.findAllStudents();
        //判断是否有学生记录
        if (students.size() > 0){
            currentRow = 1;
            setTitle("浏览学生表记录" + "&& 当前记录：" + currentRow);
            fillFrameData(currentRow);
        }else {
            JOptionPane.showMessageDialog(null, "表中没有记录！", "浏览学生表记录", JOptionPane.ERROR_MESSAGE);
            btnTop.setEnabled(false);
            btnPrevious.setEnabled(false);
            btnNext.setEnabled(false);
            btnBottom.setEnabled(false);
        }

        //【第一条】按钮单击事件
        btnTop.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                currentRow = 1;
                fillFrameData(currentRow);
            }
        });

        //【上一条】按钮单击事件
        btnPrevious.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (currentRow > 1){
                    //设置当前记录号
                    currentRow--;
                    fillFrameData(currentRow);
                }else {
                    JOptionPane.showMessageDialog(null, "已到第一条记录！", "浏览学生表记录", JOptionPane.WARNING_MESSAGE);
                }
            }
        });

        //【下一条】按钮单击事件
        btnNext.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (currentRow <students.size()){
                    //设置当前记录号
                    currentRow++;
                    fillFrameData(currentRow);
                }else {
                    JOptionPane.showMessageDialog(null, "已到最后一条记录！", "浏览学生表记录", JOptionPane.WARNING_MESSAGE);
                }
            }
        });
        //【最后一条】按钮单击事件
        btnBottom.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                currentRow = students.size()-1 ;
                fillFrameData(currentRow);
            }
        });

        //【退出】按钮单击事件
        btnExit.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });

        //【编辑】按钮单击事件
        btnEdit.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 设置窗口标题
                setTitle("编辑学生表记录" + " && 当前记录：" + currentRow);

                txtName.setEditable(true);
                txtSex.setEditable(true);
                txtAge.setEditable(true);
                txtDepartment.setEditable(true);
                txtClass.setEditable(true);
                txtTelephone.setEditable(true);
                btnOK.setEnabled(true);
                btnCancel.setEnabled(true);
            }
        });
        //【确定】按钮单击事件
        btnOK.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                Student student = students.get(currentRow);

                if (isNumber(txtAge.getText())){
                    if (isLegalTelephone(txtTelephone.getText())){
                        //修改学生实体属性
                        student.setName(txtName.getText());
                        student.setSex(txtSex.getText());
                        student.setAge(Integer.parseInt(txtAge.getText()));
                        student.setDepartment(txtDepartment.getText());
                        student.setClazz(txtClass.getText());
                        student.setTelephone(txtTelephone.getText());
                        //更新学生信息
                        int count = studentService.updateStudent(student);
                        //判断是否成功
                        if (count > 0){
                            JOptionPane.showMessageDialog(null,"更新记录成功","编辑学生记录",JOptionPane.INFORMATION_MESSAGE);
                            btnOK.setEnabled(false);
                            btnCancel.setEnabled(false);
                            btnEdit.setEnabled(true);
                            txtName.setEditable(false);
                            txtSex.setEditable(false);
                            txtAge.setEditable(false);
                            txtDepartment.setEditable(false);
                            txtClass.setEditable(false);
                            txtTelephone.setEditable(false);
                            // 重新获取全部学生列表
                            students = studentService.findAllStudents();
                            // 设置窗口标题
                            setTitle("浏览学生表记录" + " && 当前记录：" + currentRow);
                        }else {
                            JOptionPane.showMessageDialog(null,"更新记录成功","编辑学生记录",JOptionPane.ERROR_MESSAGE);
                        }
                    }else {
                        JOptionPane.showMessageDialog(null,"非法手机号","编辑学生记录",JOptionPane.ERROR_MESSAGE);
                        txtTelephone.selectAll();
                        txtTelephone.requestFocus();
                    }
                }else {
                    JOptionPane.showMessageDialog(null, "年龄必须是数字！", "编辑学生记录", JOptionPane.ERROR_MESSAGE);
                    txtAge.selectAll();
                    txtAge.requestFocus();
                }
            }
        });
        //【取消】按钮单击事件
        btnCancel.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                btnOK.setEnabled(false);
                btnCancel.setEnabled(false);
                btnEdit.setEnabled(true);
                txtName.setEditable(false);
                txtSex.setEditable(false);
                txtAge.setEditable(false);
                txtDepartment.setEditable(false);
                txtClass.setEditable(false);
                txtTelephone.setEditable(false);
                // 恢复文本框修改前的值
                txtName.setText(students.get(currentRow).getName());
                txtSex.setText(students.get(currentRow).getSex());
                txtAge.setText(students.get(currentRow).getAge() + "");
                txtDepartment.setText(students.get(currentRow).getDepartment());
                txtClass.setText(students.get(currentRow).getClazz());
                txtTelephone.setText(students.get(currentRow).getTelephone());
            }
        });
        // 【学号】文本框按键事件
        txtId.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtName.requestFocus();
                }
            }
        });

        // 【姓名】文本框按键事件
        txtName.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtSex.requestFocus();
                }
            }
        });

        // 【性别】文本框按键事件
        txtSex.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtAge.requestFocus();
                }
            }
        });

        // 【年龄】文本框按键事件
        txtAge.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtDepartment.requestFocus();
                }
            }
        });

        // 【系部】文本框按键事件
        txtDepartment.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtClass.requestFocus();
                }
            }
        });

        // 【班级】文本框按键事件
        txtClass.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    txtTelephone.requestFocus();
                }
            }
        });

    }
    //将当前记录数据填充窗口各文本框
    private void fillFrameData(int currentRow){
        if (currentRow > 0){
            setTitle("浏览学生表记录" + "&& 当前记录" + currentRow);
            txtId.setText(students.get(currentRow).getId());
            txtName.setText(students.get(currentRow).getName());
            txtSex.setText(students.get(currentRow).getSex());
            txtAge.setText(students.get(currentRow).getAge() + "");
            txtDepartment.setText(students.get(currentRow).getDepartment());
            txtClass.setText(students.get(currentRow).getClazz());
            txtTelephone.setText(students.get(currentRow).getTelephone());
        }
    }

    //判断一个字符串是否全部是数字
    private boolean isNumber(String str){
        for (int i = 0;i <str.length();i ++) {
            if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                return false;
            }
        }
        return true;
    }

    //判断是否合法手机号
    private boolean isLegalTelephone(String telephone){
        Pattern p = Pattern.compile("^((13[0-9])|(15[^4,\\D])|(18[0-9]))\\d{8}$");
        Matcher m = p.matcher(telephone);
        return m.matches();
    }

    //主方法
    public static void main(String[] args) {
        new EditStudentFrame("");
    }
}