sturegister.java

自己写的学生选课系统,多多关照.以后共同学习

package student;

import java.awt.*;

import javax.swing.*;
import java.awt.Rectangle;
import java.awt.Font;
import javax.swing.BorderFactory;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class StuRegister extends JFrame {
    public StuRegister() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(null);
        jLabel1.setFont(new java.awt.Font("楷体_GB2312", Font.BOLD, 20));
        jLabel1.setBorder(BorderFactory.createRaisedBevelBorder());
        jLabel1.setText("学生注册");
        jLabel1.setBounds(new Rectangle(165, 25, 88, 24));
        jLabel2.setText("学号：");
        jLabel2.setBounds(new Rectangle(34, 78, 44, 29));
        jTextFieldNum.setBounds(new Rectangle(83, 83, 113, 19));
        jLabel3.setText("密码：");
        jLabel3.setBounds(new Rectangle(35, 121, 43, 20));
        jPasswordFieldPsw1.setBounds(new Rectangle(83, 124, 113, 20));
        jLabel4.setText("确认密码：");
        jLabel4.setBounds(new Rectangle(12, 167, 61, 24));
        jPasswordFieldPsw2.setBounds(new Rectangle(83, 164, 113, 22));
        jLabel5.setText("姓名：");
        jLabel5.setBounds(new Rectangle(213, 82, 47, 20));
        jTextFieldName.setBounds(new Rectangle(253, 80, 110, 21));
        jLabel6.setText("性别：");
        jLabel6.setBounds(new Rectangle(213, 120, 37, 25));
        jTextFieldSex.setBounds(new Rectangle(253, 121, 110, 23));
        jLabel7.setText("年龄：");
        jLabel7.setBounds(new Rectangle(215, 162, 57, 26));
        jTextFieldAge.setBounds(new Rectangle(253, 165, 110, 23));
        jLabel8.setText("专业：");
        jLabel8.setBounds(new Rectangle(36, 210, 40, 24));
        jTextFieldDept.setBounds(new Rectangle(83, 210, 280, 24));
        jButton1.setBounds(new Rectangle(84, 250, 89, 23));
        jButton1.setText("提交");
        jButton1.addActionListener(new StuRegister_jButton1_actionAdapter(this));
        jButton2.setBounds(new Rectangle(222, 250, 87, 22));
        jButton2.setText("重置");
        jButton2.addActionListener(new StuRegister_jButton2_actionAdapter(this));
        this.getContentPane().add(jLabel3);
        this.getContentPane().add(jLabel2);
        this.getContentPane().add(jTextFieldNum);
        this.getContentPane().add(jPasswordFieldPsw1);
        this.getContentPane().add(jLabel4);
        this.getContentPane().add(jPasswordFieldPsw2);
        this.getContentPane().add(jLabel5);
        this.getContentPane().add(jTextFieldName);
        this.getContentPane().add(jLabel6);
        this.getContentPane().add(jTextFieldSex);
        this.getContentPane().add(jLabel7);
        this.getContentPane().add(jTextFieldAge);
        this.getContentPane().add(jLabel8);
        this.getContentPane().add(jTextFieldDept);
        this.getContentPane().add(jButton1);
        this.getContentPane().add(jButton2);
        this.getContentPane().add(jLabel1);
    }

    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    JTextField jTextFieldNum = new JTextField();
    JLabel jLabel3 = new JLabel();
    JPasswordField jPasswordFieldPsw1 = new JPasswordField();
    JLabel jLabel4 = new JLabel();
    JPasswordField jPasswordFieldPsw2 = new JPasswordField();
    JLabel jLabel5 = new JLabel();
    JTextField jTextFieldName = new JTextField();
    JLabel jLabel6 = new JLabel();
    JTextField jTextFieldSex = new JTextField();
    JLabel jLabel7 = new JLabel();
    JTextField jTextFieldAge = new JTextField();
    JLabel jLabel8 = new JLabel();
    JTextField jTextFieldDept = new JTextField();
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    public void jButton1_actionPerformed(ActionEvent e) {

        //判断学号是否为空
        if (jTextFieldNum.getText().trim().equals("")) {
            JOptionPane.showMessageDialog(this, "学号不能为空！");
        }
        //判断名字是否为空
        if (jTextFieldName.getText().trim().equals("")) {
            JOptionPane.showMessageDialog(this, "名字不能为空！");
        }
        //判断性别是否正确
        if (!(jTextFieldSex.getText().trim().equals("男")) &&
            !(jTextFieldSex.getText().trim().equals("女"))) {
            JOptionPane.showMessageDialog(this, "性别只能是“男”或“女”");
        }

        //判断年龄输入是否正确（15-30）
        if (Integer.parseInt(jTextFieldAge.getText().trim()) < 15) {
            JOptionPane.showMessageDialog(this, "输入的年龄不能小于15");
        }
        //判断年龄输入是否正确（15-30）
        if (Integer.parseInt(jTextFieldAge.getText().trim()) > 30) {
            JOptionPane.showMessageDialog(this, "输入的年龄不能大于30");
        }

        //判断密码是否为空
        if (jPasswordFieldPsw1.getText().trim().equals("")) {
            JOptionPane.showMessageDialog(this, "密码不能为空！");
        }
        //判断确认密码是否为空
        if (jPasswordFieldPsw2.getText().trim().equals("")) {
            JOptionPane.showMessageDialog(this, "确认密码不能为空！");
        }
        //判断两次输入的密码是否一致
        if (!(jPasswordFieldPsw1.getText().trim().equals(jPasswordFieldPsw2.
                getText().trim()))) {
            JOptionPane.showMessageDialog(this, "两次输入的密码不一致！");
        } else {
            String sql =
                    "insert into Student (Sno,Sname,Spsw,Ssex,Sage,Sdept )values ('" +
                    jTextFieldNum.getText().trim() + "',"
                    + "'" + jTextFieldName.getText().trim() + "',"
                    + "'" + jPasswordFieldPsw1.getText().trim() + "',"
                    + "'" + jTextFieldSex.getText().trim() + "',"
                    + "" + jTextFieldAge.getText().trim() + ","
                    + "'" + jTextFieldDept.getText().trim() + "'"
                    + ")";
            System.out.println(sql);
            if (DBManager.executeSql(sql)) {
                JOptionPane.showMessageDialog(this, "注册成功！");
                String str = "欢迎" + jTextFieldName.getText().trim()+"同学的登陆";
                MainFrame.jMenuItem4.setEnabled(true);
                MainFrame.jLabelWelcome.setText(str);
                MainFrame.jMenu3.setEnabled(true);
                MainFrame.jMenu4.setEnabled(true);

                MainFrame.jMenuItem11.setEnabled(false);
                MainFrame.jMenuItem12.setEnabled(false);
                MainFrame.jMenuItem13.setEnabled(false);
                MainFrame.jMenuItem14.setEnabled(true);
                this.dispose();
            } else {
                JOptionPane.showMessageDialog(this, "注册失败，请重新操作！");
            }
        }

    }

    public void setNull() {
        jTextFieldNum.setText(null);
        jTextFieldName.setText(null);
        jPasswordFieldPsw1.setText(null);
        jPasswordFieldPsw2.setText(null);
        jTextFieldSex.setText(null);
        jTextFieldAge.setText(null);
        jTextFieldDept.setText(null);

    }

    public void jButton2_actionPerformed(ActionEvent e) {
        setNull();
    }

}


class StuRegister_jButton2_actionAdapter implements ActionListener {
    private StuRegister adaptee;
    StuRegister_jButton2_actionAdapter(StuRegister adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton2_actionPerformed(e);
    }
}


class StuRegister_jButton1_actionAdapter implements ActionListener {
    private StuRegister adaptee;
    StuRegister_jButton1_actionAdapter(StuRegister adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}