Java课程设计---添加学生

1、创建添加窗体

　　

package com.student.view;

import java.awt.EventQueue;

import javax.swing.ButtonGroup;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

/*
 * 项目名称：
 *
 * 文件名称为：AddStudent.java
 * 文件创建人：daxiang
 *
 * @author daxiang
 * @version
 * @time  2018年6月22日 上午8:57:41
 * @copyright daxiang
 */
public class AddStudent extends JFrame {

	private JPanel contentPane;
	private JTextField textField;
	private JTextField textField_1;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Add frame = new Add();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public AddStudent() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 474, 452);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);

		JLabel lblNewLabel = new JLabel("学号");
		lblNewLabel.setBounds(56, 51, 72, 18);
		contentPane.add(lblNewLabel);

		JLabel lblNewLabel_1 = new JLabel("姓名");
		lblNewLabel_1.setBounds(56, 109, 72, 18);
		contentPane.add(lblNewLabel_1);

		JLabel lblNewLabel_2 = new JLabel("性别");
		lblNewLabel_2.setBounds(56, 178, 72, 18);
		contentPane.add(lblNewLabel_2);

		JLabel lblNewLabel_3 = new JLabel("班级");
		lblNewLabel_3.setBounds(56, 243, 72, 18);
		contentPane.add(lblNewLabel_3);

		textField = new JTextField();
		textField.setBounds(128, 48, 175, 24);
		contentPane.add(textField);
		textField.setColumns(10);

		textField_1 = new JTextField();
		textField_1.setBounds(128, 106, 175, 24);
		contentPane.add(textField_1);
		textField_1.setColumns(10);

		ButtonGroup buttonGroup = new ButtonGroup();

		JRadioButton gril = new JRadioButton("女");
		gril.setBounds(223, 174, 57, 27);
		contentPane.add(gril);

		JRadioButton boy = new JRadioButton("男");
		boy.setBounds(140, 174, 57, 27);
		contentPane.add(boy);

		buttonGroup.add(boy);
		buttonGroup.add(gril);

		JComboBox comboBox = new JComboBox();
		comboBox.setModel(new DefaultComboBoxModel(new String[] {"计科1班", "计科2班", "计科3班", "计科4班"}));
		comboBox.setBounds(128, 240, 175, 24);
		contentPane.add(comboBox);

		JButton btnNewButton = new JButton("添加");
		btnNewButton.setBounds(56, 325, 113, 27);
		contentPane.add(btnNewButton);

		JButton btnNewButton_1 = new JButton("取消");
		btnNewButton_1.setBounds(226, 325, 113, 27);
		contentPane.add(btnNewButton_1);
	}
}

2、创建StudentDao并增加add方法

　　

package com.student.dao;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.student.model.Student;
import com.student.util.DbUtil;

/*
 * 项目名称：
 *
 * 文件名称为：StudentDao.java
 * 文件创建人：daxiang
 *
 * @author daxiang
 * @version
 * @time  2018年6月20日 上午8:10:50
 * @copyright daxiang
 */
public class StudentDao {

	public boolean add(Student student) throws SQLException {
		DbUtil dbUtil = new DbUtil();
		String sql = "insert into tb_student (name,sno,sex,classname) values ('"+student.getName() + "','" + student.getSno() + "','"
				+ student.getSex() + "','" + student.getClassName() + "')";
		return dbUtil.execute(sql);
	}

}

3、创建StudentService并增加add服务

package com.student.service;

import java.sql.SQLException;
import java.util.List;

import com.student.dao.StudentDao;
import com.student.model.Student;

/*
 * 项目名称：
 *
 * 文件名称为：StudentService.java
 * 文件创建人：daxiang
 *
 * @author daxiang
 * @version
 * @time  2018年6月20日 上午8:09:56
 * @copyright daxiang
 */
public class StudentService {

	/**
	 * 增加学生
	 *
	 * @param student
	 * @return
	 * @throws SQLException
	 */
	public boolean addStudent(Student student) throws SQLException {
		StudentDao studentDao = new StudentDao();
		return studentDao.add(student);
	}
}

4、窗体实现添加

package com.student.view;

import java.awt.EventQueue;
import java.awt.HeadlessException;

import javax.swing.ButtonGroup;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

import com.student.model.Student;
import com.student.service.StudentService;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.sql.SQLException;

/*
 * 项目名称：
 *
 * 文件名称为：AddStuent.java
 * 文件创建人：daxiang
 *
 * @author daxiang
 * @version
 * @time  2018年6月22日 上午8:57:41
 * @copyright daxiang
 */
public class AddStudent extends JFrame {

	private JPanel contentPane;
	private JTextField textField;
	private JTextField textField_1;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Add frame = new Add();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public AddStudent() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
　　　　　　　　　 setVisible(true);
		setBounds(100, 100, 474, 452);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);

		JLabel lblNewLabel = new JLabel("学号");
		lblNewLabel.setBounds(56, 51, 72, 18);
		contentPane.add(lblNewLabel);

		JLabel lblNewLabel_1 = new JLabel("姓名");
		lblNewLabel_1.setBounds(56, 109, 72, 18);
		contentPane.add(lblNewLabel_1);

		JLabel lblNewLabel_2 = new JLabel("性别");
		lblNewLabel_2.setBounds(56, 178, 72, 18);
		contentPane.add(lblNewLabel_2);

		JLabel lblNewLabel_3 = new JLabel("班级");
		lblNewLabel_3.setBounds(56, 243, 72, 18);
		contentPane.add(lblNewLabel_3);

		textField = new JTextField();
		textField.setBounds(128, 48, 175, 24);
		contentPane.add(textField);
		textField.setColumns(10);

		textField_1 = new JTextField();
		textField_1.setBounds(128, 106, 175, 24);
		contentPane.add(textField_1);
		textField_1.setColumns(10);

		ButtonGroup buttonGroup = new ButtonGroup();

		JRadioButton gril = new JRadioButton("女");
		gril.setBounds(223, 174, 57, 27);
		contentPane.add(gril);

		JRadioButton boy = new JRadioButton("男");
		boy.setBounds(140, 174, 57, 27);
		contentPane.add(boy);

		buttonGroup.add(boy);
		buttonGroup.add(gril);

		JComboBox comboBox = new JComboBox();
		comboBox.setModel(new DefaultComboBoxModel(new String[] {"计科1班", "计科2班", "计科3班", "计科4班"}));
		comboBox.setBounds(128, 240, 175, 24);
		contentPane.add(comboBox);

		JButton btnNewButton = new JButton("添加");
		btnNewButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				String sno=textField.getText().trim();
				String name = textField_1.getText().trim();
				String sex="";
				if (boy.isSelected()) {
					sex="男";
				}else if(gril.isSelected()){
					sex="女";
				}
				String className =comboBox.getSelectedItem().toString();
				Student student = new Student(sno, name, sex, className);
				StudentService service = new StudentService();
				try {
					if(service.addStudent(student)){
						JOptionPane.showMessageDialog(null, "添加成功");
					}else{
						JOptionPane.showMessageDialog(null, "添加失败");
					}
				} catch (HeadlessException | SQLException e1) {
					e1.printStackTrace();
				}

			}
		});
		btnNewButton.setBounds(56, 325, 113, 27);
		contentPane.add(btnNewButton);

		JButton btnNewButton_1 = new JButton("取消");
		btnNewButton_1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				textField.setText("");
				textField_1.setText("");
			}
		});
		btnNewButton_1.setBounds(226, 325, 113, 27);
		contentPane.add(btnNewButton_1);
	}
}