数据库大实验展示（下）

接中篇~~

 修改密码：

package com.artisan.view;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.border.EmptyBorder;

import com.artisan.dao.AdminDao;
import com.artisan.dao.StudentDao;
import com.artisan.dao.TeacherDao;
import com.artisan.model.Admin;
import com.artisan.model.Student;
import com.artisan.model.Teacher;
import com.artisan.util.StringUtil;

public class EditPasswordFrm extends JInternalFrame {

	private JPanel contentPane;
	private JPasswordField oldPasswordTextField;
	private JPasswordField newPasswordTextField;
	private JPasswordField confirmPasswordTextField;
	private JLabel currentUserLabel;

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

	/**
	 * Create the frame.
	 */
	public EditPasswordFrm() {
		setTitle("\u4FEE\u6539\u5BC6\u7801");
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		setClosable(true);
		setIconifiable(true);
		JLabel label = new JLabel("\u539F\u5BC6\u7801\uFF1A");
		label.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/password.png")));
		label.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		oldPasswordTextField = new JPasswordField();
		oldPasswordTextField.setColumns(10);
		
		JLabel label_1 = new JLabel("\u65B0\u5BC6\u7801\uFF1A");
		label_1.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/\u4FEE\u6539\u5BC6\u7801.png")));
		label_1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		newPasswordTextField = new JPasswordField();
		newPasswordTextField.setColumns(10);
		
		JLabel label_2 = new JLabel("\u786E\u8BA4\u5BC6\u7801\uFF1A");
		label_2.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/\u4FEE\u6539\u5BC6\u7801.png")));
		label_2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		confirmPasswordTextField = new JPasswordField();
		confirmPasswordTextField.setColumns(10);
		
		JButton submitButton = new JButton("\u786E\u8BA4");
		submitButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				submitEdit(e);
			}
		});
		submitButton.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/\u786E\u8BA4.png")));
		submitButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		JButton resetButton = new JButton("\u91CD\u7F6E");
		resetButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				resetValue(ae);
			}
		});
		resetButton.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/\u91CD\u7F6E.png")));
		resetButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		JLabel label_3 = new JLabel("\u5F53\u524D\u7528\u6237\uFF1A");
		label_3.setIcon(new ImageIcon(EditPasswordFrm.class.getResource("/images/\u7528\u6237\u540D.png")));
		label_3.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		currentUserLabel = new JLabel("");
		GroupLayout gl_contentPane = new GroupLayout(contentPane);
		gl_contentPane.setHorizontalGroup(
			gl_contentPane.createParallelGroup(Alignment.LEADING)
				.addGroup(gl_contentPane.createSequentialGroup()
					.addGap(86)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
						.addGroup(gl_contentPane.createSequentialGroup()
							.addComponent(submitButton)
							.addGap(61)
							.addComponent(resetButton))
						.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING, false)
							.addGroup(gl_contentPane.createSequentialGroup()
								.addComponent(label_2)
								.addPreferredGap(ComponentPlacement.RELATED)
								.addComponent(confirmPasswordTextField, 167, 167, 167))
							.addGroup(gl_contentPane.createSequentialGroup()
								.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
									.addComponent(label_1)
									.addComponent(label))
								.addGap(18)
								.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING, false)
									.addComponent(newPasswordTextField)
									.addComponent(oldPasswordTextField, GroupLayout.DEFAULT_SIZE, 167, Short.MAX_VALUE)))
							.addGroup(gl_contentPane.createSequentialGroup()
								.addComponent(label_3)
								.addGap(18)
								.addComponent(currentUserLabel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
					.addContainerGap(77, Short.MAX_VALUE))
		);
		gl_contentPane.setVerticalGroup(
			gl_contentPane.createParallelGroup(Alignment.LEADING)
				.addGroup(gl_contentPane.createSequentialGroup()
					.addGap(24)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
						.addComponent(label_3)
						.addComponent(currentUserLabel))
					.addGap(18)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
						.addComponent(label)
						.addComponent(oldPasswordTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
					.addGap(32)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
						.addComponent(label_1)
						.addComponent(newPasswordTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
					.addGap(28)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
						.addComponent(label_2)
						.addComponent(confirmPasswordTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
					.addPreferredGap(ComponentPlacement.RELATED, 37, Short.MAX_VALUE)
					.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
						.addComponent(resetButton)
						.addComponent(submitButton))
					.addContainerGap())
		);
		contentPane.setLayout(gl_contentPane);
		if("系统管理员".equals(MainFrm.userType.getName())){
			Admin admin = (Admin)MainFrm.userObject;
			currentUserLabel.setText("【系统管理员】" + admin.getName());
		}else if("学生".equals(MainFrm.userType.getName())){
			Student student = (Student)MainFrm.userObject;
			currentUserLabel.setText("【学生】" + student.getName());
		}else{
			Teacher teacher = (Teacher)MainFrm.userObject;
			currentUserLabel.setText("【学生】" + teacher.getName());
		}
	}

	protected void submitEdit(ActionEvent e) {
		// TODO Auto-generated method stub
		String oldPassword = oldPasswordTextField.getText().toString();
		String newPassword = newPasswordTextField.getText().toString();
		String conformPassword = confirmPasswordTextField.getText().toString();
		if(StringUtil.isEmpty(oldPassword)){
			JOptionPane.showMessageDialog(this, "请填写旧密码！");
			return;
		}
		if(StringUtil.isEmpty(newPassword)){
			JOptionPane.showMessageDialog(this, "请填写新密码！");
			return;
		}
		if(StringUtil.isEmpty(conformPassword)){
			JOptionPane.showMessageDialog(this, "请确认新密码！");
			return;
		}
		if(!newPassword.equals(conformPassword)){
			JOptionPane.showMessageDialog(this, "两次密码输入不一致！");
			return;
		}
		if("系统管理员".equals(MainFrm.userType.getName())){
			AdminDao adminDao = new AdminDao();
			Admin adminTmp = new Admin();
			Admin admin = (Admin)MainFrm.userObject;
			adminTmp.setName(admin.getName());
			adminTmp.setId(admin.getId());
			adminTmp.setPassword(oldPassword);
			JOptionPane.showMessageDialog(this, adminDao.editPassword(adminTmp, newPassword));
			adminDao.closeDao();
			return;
		}
		if("学生".equals(MainFrm.userType.getName())){
			StudentDao studentDao = new StudentDao();
			Student studentTmp = new Student();
			Student student = (Student)MainFrm.userObject;
			studentTmp.setName(student.getName());
			studentTmp.setPassword(oldPassword);
			studentTmp.setId(student.getId());
			JOptionPane.showMessageDialog(this, studentDao.editPassword(studentTmp, newPassword));
			studentDao.closeDao();
			return;
		}
		if("教师".equals(MainFrm.userType.getName())){
			TeacherDao teacherDao = new TeacherDao();
			Teacher teacherTmp = new Teacher();
			Teacher teacher = (Teacher)MainFrm.userObject;
			teacherTmp.setName(teacher.getName());
			teacherTmp.setPassword(oldPassword);
			teacherTmp.setId(teacher.getId());
			JOptionPane.showMessageDialog(this, teacherDao.editPassword(teacherTmp, newPassword));
			teacherDao.closeDao();
			return;
		}
		
	}

	protected void resetValue(ActionEvent ae) {
		// TODO Auto-generated method stub
		oldPasswordTextField.setText("");
		newPasswordTextField.setText("");
		confirmPasswordTextField.setText("");
	}
}

 班级的删改查：

package com.artisan.view;

import java.awt.EventQueue;

import javax.swing.JInternalFrame;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JLabel;

import java.awt.Font;
import java.util.List;
import java.util.Vector;

import javax.swing.ImageIcon;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.UIManager;

import com.artisan.dao.ClassDao;
import com.artisan.model.StudentClass;
import com.artisan.util.StringUtil;

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

import javax.swing.JTextArea;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class ManageClassFrm extends JInternalFrame {
	private JTextField searchClassNameTextField;
	private JTable classListTable;
	private JTextField editClassNameTextField;
	private JTextArea editClassInfoTextArea;
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					ManageClassFrm frame = new ManageClassFrm();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public ManageClassFrm() {
		setClosable(true);
		setIconifiable(true);
		setTitle("\u73ED\u7EA7\u4FE1\u606F\u7BA1\u7406");
		setBounds(100, 100, 773, 562);
		
		JScrollPane scrollPane = new JScrollPane();
		
		JLabel label = new JLabel("\u73ED\u7EA7\u540D\u79F0\uFF1A");
		label.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u73ED\u7EA7\u540D\u79F0.png")));
		label.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		searchClassNameTextField = new JTextField();
		searchClassNameTextField.setColumns(10);
		
		JButton searchButton = new JButton("\u67E5\u8BE2");
		searchButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				StudentClass sc = new StudentClass();
				sc.setName(searchClassNameTextField.getText().toString());
				setTable(sc);
			}
		});
		searchButton.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u641C\u7D22.png")));
		searchButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		JLabel label_1 = new JLabel("\u73ED\u7EA7\u540D\u79F0\uFF1A");
		label_1.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u73ED\u7EA7\u540D\u79F0.png")));
		label_1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editClassNameTextField = new JTextField();
		editClassNameTextField.setColumns(10);
		
		JLabel label_2 = new JLabel("\u73ED\u7EA7\u4FE1\u606F\uFF1A");
		label_2.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u73ED\u7EA7\u4ECB\u7ECD.png")));
		label_2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editClassInfoTextArea = new JTextArea();
		
		JButton submitEditButton = new JButton("\u786E\u8BA4\u4FEE\u6539");
		submitEditButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				submitEditAct(ae);
			}
		});
		submitEditButton.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u786E\u8BA4.png")));
		submitEditButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		JButton submitDeleteButton = new JButton("\u5220\u9664");
		submitDeleteButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				deleteClassAct(ae);
			}
		});
		submitDeleteButton.setIcon(new ImageIcon(ManageClassFrm.class.getResource("/images/\u5220\u9664.png")));
		submitDeleteButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		GroupLayout groupLayout = new GroupLayout(getContentPane());
		groupLayout.setHorizontalGroup(
			groupLayout.createParallelGroup(Alignment.LEADING)
				.addGroup(groupLayout.createSequentialGroup()
					.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
						.addGroup(groupLayout.createSequentialGroup()
							.addGap(160)
							.addComponent(label)
							.addGap(18)
							.addComponent(searchClassNameTextField, GroupLayout.PREFERRED_SIZE, 207, GroupLayout.PREFERRED_SIZE)
							.addGap(50)
							.addComponent(searchButton))
						.addGroup(groupLayout.createSequentialGroup()
							.addGap(110)
							.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 536, GroupLayout.PREFERRED_SIZE))
						.addGroup(groupLayout.createSequentialGroup()
							.addGap(53)
							.addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false)
								.addGroup(groupLayout.createSequentialGroup()
									.addPreferredGap(ComponentPlacement.RELATED)
									.addComponent(label_2)
									.addGap(18)
									.addComponent(editClassInfoTextArea))
								.addGroup(groupLayout.createSequentialGroup()
									.addComponent(label_1)
									.addGap(18)
									.addComponent(editClassNameTextField, GroupLayout.PREFERRED_SIZE, 146, GroupLayout.PREFERRED_SIZE)))
							.addGap(102)
							.addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false)
								.addComponent(submitDeleteButton, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
								.addComponent(submitEditButton, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
					.addContainerGap(111, Short.MAX_VALUE))
		);
		groupLayout.setVerticalGroup(
			groupLayout.createParallelGroup(Alignment.LEADING)
				.addGroup(groupLayout.createSequentialGroup()
					.addGap(45)
					.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
						.addComponent(label, GroupLayout.PREFERRED_SIZE, 27, GroupLayout.PREFERRED_SIZE)
						.addComponent(searchClassNameTextField, GroupLayout.PREFERRED_SIZE, 33, GroupLayout.PREFERRED_SIZE)
						.addComponent(searchButton, GroupLayout.PREFERRED_SIZE, 31, GroupLayout.PREFERRED_SIZE))
					.addGap(30)
					.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 282, GroupLayout.PREFERRED_SIZE)
					.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
						.addGroup(groupLayout.createSequentialGroup()
							.addGap(18)
							.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
								.addComponent(label_1)
								.addComponent(editClassNameTextField, GroupLayout.PREFERRED_SIZE, 30, GroupLayout.PREFERRED_SIZE))
							.addGap(18)
							.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
								.addGroup(groupLayout.createSequentialGroup()
									.addComponent(editClassInfoTextArea, GroupLayout.DEFAULT_SIZE, 66, Short.MAX_VALUE)
									.addContainerGap())
								.addGroup(Alignment.TRAILING, groupLayout.createSequentialGroup()
									.addComponent(label_2)
									.addGap(32))))
						.addGroup(groupLayout.createSequentialGroup()
							.addGap(30)
							.addComponent(submitEditButton)
							.addGap(34)
							.addComponent(submitDeleteButton)
							.addContainerGap())))
		);
		
		classListTable = new JTable();
		classListTable.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent me) {
				selectedTableRow(me);
			}
		});
		classListTable.setFont(new Font("微软雅黑", Font.PLAIN, 12));
		classListTable.setModel(new DefaultTableModel(
			new Object[][] {
			},
			new String[] {
					"\u73ED\u7EA7\u7F16\u53F7","\u73ED\u7EA7\u540D\u79F0" , "\u73ED\u7EA7\u4FE1\u606F\u4ECB\u7ECD"
			}
		) {
			boolean[] columnEditables = new boolean[] {
				false, false, false
			};
			public boolean isCellEditable(int row, int column) {
				return columnEditables[column];
			}
		});
		classListTable.getColumnModel().getColumn(2).setPreferredWidth(316);
		scrollPane.setViewportView(classListTable);
		getContentPane().setLayout(groupLayout);
		setTable(new StudentClass());
	}
	protected void deleteClassAct(ActionEvent ae) {
		// TODO Auto-generated method stub
		if(JOptionPane.showConfirmDialog(this, "您确定删除么？") != JOptionPane.OK_OPTION){
			return;
		}
		int index = classListTable.getSelectedRow();
		if(index == -1){
			JOptionPane.showMessageDialog(this, "请选中要删除的数据!");
			return;
		}
		DefaultTableModel dft = (DefaultTableModel) classListTable.getModel();
		int id = Integer.parseInt(dft.getValueAt(classListTable.getSelectedRow(), 0).toString());
		ClassDao classDao = new ClassDao();
		if(classDao.delete(id)){
			JOptionPane.showMessageDialog(this, "删除成功!");
		}else{
			JOptionPane.showMessageDialog(this, "删除失败!");
		}
		classDao.closeDao();
		setTable(new StudentClass());
	}

	protected void submitEditAct(ActionEvent ae) {
		// TODO Auto-generated method stub
		ClassDao classDao = new ClassDao();
		int index = classListTable.getSelectedRow();
		if(index == -1){
			JOptionPane.showMessageDialog(this, "请选中要修改的数据!");
			return;
		}
		DefaultTableModel dft = (DefaultTableModel) classListTable.getModel();
		String className = dft.getValueAt(classListTable.getSelectedRow(), 1).toString();
		String classInfo = dft.getValueAt(classListTable.getSelectedRow(), 2).toString();
		String editClassName = editClassNameTextField.getText().toString();
		String editClassInfo = editClassInfoTextArea.getText().toString();
		if(StringUtil.isEmpty(editClassName)){
			JOptionPane.showMessageDialog(this, "请填写要修改的名称!");
			return;
		}
		if(className.equals(editClassName) && classInfo.equals(editClassInfo)){
			JOptionPane.showMessageDialog(this, "您还没有做任何修改!");
			return;
		}
		int id = Integer.parseInt(dft.getValueAt(classListTable.getSelectedRow(), 0).toString());
		StudentClass sc = new StudentClass();
		sc.setId(id);
		sc.setName(editClassName);
		sc.setInfo(editClassInfo);
		if(classDao.update(sc)){
			JOptionPane.showMessageDialog(this, "更新成功!");
		}else{
			JOptionPane.showMessageDialog(this, "更新失败!");
		}
		classDao.closeDao();
		setTable(new StudentClass());
	}

	protected void selectedTableRow(MouseEvent me) {
		// TODO Auto-generated method stub
		DefaultTableModel dft = (DefaultTableModel) classListTable.getModel();
		editClassNameTextField.setText(dft.getValueAt(classListTable.getSelectedRow(), 1).toString());
		editClassInfoTextArea.setText(dft.getValueAt(classListTable.getSelectedRow(), 2).toString());
	}

	private void setTable(StudentClass studentClass){
		DefaultTableModel dft = (DefaultTableModel) classListTable.getModel();
		dft.setRowCount(0);
		ClassDao classDao = new ClassDao();
		List classList = classDao.getClassList(studentClass);
		for (StudentClass sc : classList) {
			Vector v = new Vector();
			v.add(sc.getId());
			v.add(sc.getName());
			v.add(sc.getInfo());
			dft.addRow(v);
		}
		classDao.closeDao();
	}
}

主界面： 

package com.artisan.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Desktop;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URI;

import javax.swing.ImageIcon;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;

import com.artisan.model.UserType;

public class MainFrm extends JFrame {

	private JPanel contentPane;
	private JDesktopPane desktopPane;
	public static UserType userType;
	public static Object userObject;
	private JMenuItem addStudentMenuItem ;
	private JMenu manageClassMenu ;
	private JMenu manageTeacherMenu;
	private JMenuItem addTeacherMenuItem;
	private JMenu courseMenu;
	/**
	 * Launch the application.
	 */
//	public static void main(String[] args) {
//		EventQueue.invokeLater(new Runnable() {
//			public void run() {
//				try {
//					MainFrm frame = new MainFrm(null,null);
//					frame.setVisible(true);
//				} catch (Exception e) {
//					e.printStackTrace();
//				}
//			}
//		});
//	}

	/**
	 * Create the frame.
	 */
	public MainFrm(UserType userType,Object userObject) {
		this.userType = userType;
		this.userObject = userObject;
		setTitle("\u5B66\u751F\u4FE1\u606F\u7CFB\u7EDF\u4E3B\u754C\u9762");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 936, 774);
		
		JMenuBar menuBar = new JMenuBar();
		setJMenuBar(menuBar);
		
		JMenu menu = new JMenu("\u7CFB\u7EDF\u8BBE\u7F6E");
		menu.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u7CFB\u7EDF\u8BBE\u7F6E.png")));
		menuBar.add(menu);
		
		JMenuItem menuItem = new JMenuItem("\u4FEE\u6539\u5BC6\u7801");
		menuItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				editPassword(ae);
			}
		});
		menuItem.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u4FEE\u6539\u5BC6\u7801.png")));
		menu.add(menuItem);
		
		JMenuItem menuItem_1 = new JMenuItem("\u9000\u51FA\u7CFB\u7EDF");
		menuItem_1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				if(JOptionPane.showConfirmDialog(MainFrm.this, "确定退出么？") == JOptionPane.OK_OPTION){
					System.exit(0);
				}
			}
		});
		menuItem_1.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u9000\u51FA.png")));
		menu.add(menuItem_1);
		
		JMenu menu_1 = new JMenu("\u5B66\u751F\u7BA1\u7406");
		menu_1.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u5B66\u751F\u7BA1\u7406.png")));
		menuBar.add(menu_1);
		
		addStudentMenuItem = new JMenuItem("\u5B66\u751F\u6DFB\u52A0");
		addStudentMenuItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				AddStudentFrm addStudentFrm = new AddStudentFrm();
				addStudentFrm.setVisible(true);
				desktopPane.add(addStudentFrm);
			}
		});
		addStudentMenuItem.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u6DFB\u52A0.png")));
		menu_1.add(addStudentMenuItem);
		
		JMenuItem menuItem_3 = new JMenuItem("\u5B66\u751F\u5217\u8868");
		menuItem_3.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				ManageStudentFrm studentManageFrm = new ManageStudentFrm();
				studentManageFrm.setVisible(true);
				desktopPane.add(studentManageFrm);
			}
		});
		menuItem_3.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u7528\u6237\u5217\u8868.png")));
		menu_1.add(menuItem_3);
		
		manageClassMenu = new JMenu("\u73ED\u7EA7\u7BA1\u7406");
		manageClassMenu.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u73ED\u7EA7\u7BA1\u7406.png")));
		menuBar.add(manageClassMenu);
		
		JMenuItem menuItem_4 = new JMenuItem("\u73ED\u7EA7\u6DFB\u52A0");
		menuItem_4.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				addStudentClass(ae);
			}
		});
		menuItem_4.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u6DFB\u52A0.png")));
		manageClassMenu.add(menuItem_4);
		
		JMenuItem menuItem_5 = new JMenuItem("\u73ED\u7EA7\u7BA1\u7406");
		menuItem_5.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				ManageClassFrm classManageFrm = new ManageClassFrm();
				classManageFrm.setVisible(true);
				desktopPane.add(classManageFrm);
			}
		});
		menuItem_5.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u73ED\u7EA7\u5217\u8868.png")));
		manageClassMenu.add(menuItem_5);
		
		manageTeacherMenu = new JMenu("\u6559\u5E08\u7BA1\u7406");
		manageTeacherMenu.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u8001\u5E08.png")));
		menuBar.add(manageTeacherMenu);
		
		addTeacherMenuItem = new JMenuItem("\u6DFB\u52A0\u6559\u5E08");
		addTeacherMenuItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				AddTeacherFrm addTeacherFrm = new AddTeacherFrm();
				addTeacherFrm.setVisible(true);
				desktopPane.add(addTeacherFrm);
			}
		});
		addTeacherMenuItem.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u6DFB\u52A0.png")));
		manageTeacherMenu.add(addTeacherMenuItem);
		
		JMenuItem menuItem_8 = new JMenuItem("\u6559\u5E08\u5217\u8868");
		menuItem_8.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				ManageTeacherFrm manageTeacherFrm = new ManageTeacherFrm();
				manageTeacherFrm.setVisible(true);
				desktopPane.add(manageTeacherFrm);
			}
		});
		menuItem_8.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u7528\u6237\u5217\u8868.png")));
		manageTeacherMenu.add(menuItem_8);
		
		courseMenu = new JMenu("\u8BFE\u7A0B\u7BA1\u7406");
		courseMenu.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u8BFE\u7A0B.png")));
		menuBar.add(courseMenu);
		
		JMenuItem addCourseMenuItem = new JMenuItem("\u6DFB\u52A0\u8BFE\u7A0B");
		addCourseMenuItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				AddCourseFrm addCourseFrm = new AddCourseFrm();
				addCourseFrm.setVisible(true);
				desktopPane.add(addCourseFrm);
			}
		});
		addCourseMenuItem.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u6DFB\u52A0.png")));
		courseMenu.add(addCourseMenuItem);
		
		JMenuItem courseListMenuItem = new JMenuItem("\u8BFE\u7A0B\u5217\u8868");
		courseListMenuItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				ManageCourseFrm manageCourseFrm = new ManageCourseFrm();
				manageCourseFrm.setVisible(true);
				desktopPane.add(manageCourseFrm);
			}
		});
		courseListMenuItem.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u8BFE\u7A0B\u5217\u8868.png")));
		courseMenu.add(courseListMenuItem);
		
		JMenu menu_4 = new JMenu("\u9009\u8BFE\u7BA1\u7406");
		menu_4.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u9009\u62E9.png")));
		menuBar.add(menu_4);
		
		JMenuItem menuItem_2 = new JMenuItem("\u9009\u8BFE\u7BA1\u7406");
		menuItem_2.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				ManageSelectedCourseFrm manageSelectedCourseFrm = new ManageSelectedCourseFrm();
				manageSelectedCourseFrm.setVisible(true);
				desktopPane.add(manageSelectedCourseFrm);
			}
		});
		menuItem_2.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u9009\u62E9.png")));
		menu_4.add(menuItem_2);
		
		JMenu menu_3 = new JMenu("\u5E2E\u52A9");
		menu_3.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u5E2E\u52A9.png")));
		menuBar.add(menu_3);
		
		JMenuItem menuItem_6 = new JMenuItem("\u5173\u4E8E\u6211\u4EEC");
		menuItem_6.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				aboutUs(ae);
			}
		});
		menuItem_6.setIcon(new ImageIcon(MainFrm.class.getResource("/images/\u5173\u4E8E\u6211\u4EEC.png")));
		menu_3.add(menuItem_6);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		contentPane.setLayout(new BorderLayout(0, 0));
		setContentPane(contentPane);
		
		desktopPane = new JDesktopPane();
		desktopPane.setBackground(new Color(0, 128, 128));
		contentPane.add(desktopPane, BorderLayout.CENTER);
		setLocationRelativeTo(null);
		setAuthority();
	}

	protected void addStudentClass(ActionEvent ae) {
		// TODO Auto-generated method stub
		AddStudentClassFrm sca = new AddStudentClassFrm();
		sca.setVisible(true);
		desktopPane.add(sca);
	}

	protected void editPassword(ActionEvent ae) {
		// TODO Auto-generated method stub
		EditPasswordFrm editPasswordFrm = new EditPasswordFrm();
		editPasswordFrm.setVisible(true);
		desktopPane.add(editPasswordFrm);
	}

	protected void aboutUs(ActionEvent ae) {
		// TODO Auto-generated method stub
		String info = "很高兴您使用此系统！";
		JOptionPane.showMessageDialog(this, info);
//		
	}
	private void setAuthority(){
		if("学生".equals(userType.getName())){
			addStudentMenuItem.setEnabled(false);
			manageClassMenu.setEnabled(false);
			manageTeacherMenu.setEnabled(false);
			courseMenu.setEnabled(false);
		}
		if("教师".equals(userType.getName())){
			addTeacherMenuItem.setEnabled(false);
		}
	}
}

 学生信息的删改查：

package com.artisan.view;

import java.awt.EventQueue;
import java.awt.Font;
import java.util.List;
import java.util.Vector;

import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.table.DefaultTableModel;

import com.artisan.dao.ClassDao;
import com.artisan.dao.SelectedCourseDao;
import com.artisan.dao.StudentDao;
import com.artisan.model.Student;
import com.artisan.model.StudentClass;
import com.artisan.util.StringUtil;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class ManageStudentFrm extends JInternalFrame {
	private JTextField serachStudentNameTextField;
	private JTable studentListTable;
	private JTextField editStudentNameTextField;
	private JPasswordField editStudentPasswordPasswordField;
	private JComboBox searchStudentComboBox;
	private List studentClassList ;
	private JComboBox editStudentClassComboBox;
	private ButtonGroup editSexButtonGroup;
	private JRadioButton editStudentSexManRadioButton;
	private JRadioButton editStudentSexFemalRadioButton;
	private JRadioButton editStudentSexUnkonwRadioButton;
	private JButton deleteStudentButton;
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					ManageStudentFrm frame = new ManageStudentFrm();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public ManageStudentFrm() {
		setClosable(true);
		setIconifiable(true);
		setTitle("\u5B66\u751F\u4FE1\u606F\u7BA1\u7406");
		setBounds(100, 100, 842, 561);
		
		JScrollPane scrollPane = new JScrollPane();
		
		JLabel label = new JLabel("\u5B66\u751F\u59D3\u540D\uFF1A");
		label.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u5B66\u751F\u7BA1\u7406.png")));
		label.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		serachStudentNameTextField = new JTextField();
		serachStudentNameTextField.setColumns(10);
		
		JLabel label_1 = new JLabel("\u6240\u5C5E\u73ED\u7EA7\uFF1A");
		label_1.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u73ED\u7EA7\u540D\u79F0.png")));
		label_1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		searchStudentComboBox = new JComboBox();
		
		JButton searchButton = new JButton("\u67E5\u8BE2");
		searchButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				searchStudent(ae);
			}
		});
		searchButton.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u641C\u7D22.png")));
		searchButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		JLabel label_2 = new JLabel("\u5B66\u751F\u59D3\u540D\uFF1A");
		label_2.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u5B66\u751F\u7BA1\u7406.png")));
		label_2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editStudentNameTextField = new JTextField();
		editStudentNameTextField.setColumns(10);
		
		JLabel label_3 = new JLabel("\u6240\u5C5E\u73ED\u7EA7\uFF1A");
		label_3.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u73ED\u7EA7\u540D\u79F0.png")));
		label_3.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editStudentClassComboBox = new JComboBox();
		
		JLabel label_4 = new JLabel("\u5B66\u751F\u6027\u522B\uFF1A");
		label_4.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u6027\u522B.png")));
		label_4.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editSexButtonGroup = new ButtonGroup();
		editStudentSexManRadioButton = new JRadioButton("\u7537");
		editStudentSexManRadioButton.setSelected(true);
		
		editStudentSexFemalRadioButton = new JRadioButton("\u5973");
		
		editStudentSexUnkonwRadioButton = new JRadioButton("\u4FDD\u5BC6");
		editSexButtonGroup.add(editStudentSexManRadioButton);
		editSexButtonGroup.add(editStudentSexFemalRadioButton);
		editSexButtonGroup.add(editStudentSexUnkonwRadioButton);
		
		JLabel label_5 = new JLabel("\u767B\u5F55\u5BC6\u7801\uFF1A");
		label_5.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/password.png")));
		label_5.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		editStudentPasswordPasswordField = new JPasswordField();
		
		JButton submitEditButton = new JButton("\u786E\u8BA4\u4FEE\u6539");
		submitEditButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				submitEditAct(ae);
			}
		});
		submitEditButton.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u786E\u8BA4.png")));
		submitEditButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		
		deleteStudentButton = new JButton("\u5220\u9664\u5B66\u751F");
		deleteStudentButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				deleteStudent(ae);
			}
		});
		deleteStudentButton.setIcon(new ImageIcon(ManageStudentFrm.class.getResource("/images/\u5220\u9664.png")));
		deleteStudentButton.setFont(new Font("微软雅黑", Font.PLAIN, 14));
		GroupLayout groupLayout = new GroupLayout(getContentPane());
		groupLayout.setHorizontalGroup(
			groupLayout.createParallelGroup(Alignment.TRAILING)
				.addGroup(groupLayout.createSequentialGroup()
					.addGap(140)
					.addComponent(label)
					.addPreferredGap(ComponentPlacement.RELATED)
					.addComponent(serachStudentNameTextField, GroupLayout.PREFERRED_SIZE, 122, GroupLayout.PREFERRED_SIZE)
					.addGap(27)
					.addComponent(label_1)
					.addGap(18)
					.addComponent(searchStudentComboBox, GroupLayout.PREFERRED_SIZE, 145, GroupLayout.PREFERRED_SIZE)
					.addGap(40)
					.addComponent(searchButton)
					.addContainerGap(69, Short.MAX_VALUE))
				.addGroup(groupLayout.createSequentialGroup()
					.addContainerGap(65, Short.MAX_VALUE)
					.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING)
						.addComponent(label_3)
						.addComponent(label_2))
					.addGap(18)
					.addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false)
						.addComponent(editStudentClassComboBox, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
						.addComponent(editStudentNameTextField, GroupLayout.DEFAULT_SIZE, 130, Short.MAX_VALUE))
					.addGap(62)
					.addGroup(groupLayout.createParallelGroup(Alignment.LEADING, false)
						.addGroup(groupLayout.createSequentialGroup()
							.addPreferredGap(ComponentPlacement.RELATED)
							.addComponent(label_4)
							.addGap(18)
							.addComponent(editStudentSexManRadioButton)
							.addGap(2)
							.addComponent(editStudentSexFemalRadioButton)
							.addPreferredGap(ComponentPlacement.UNRELATED)
							.addComponent(editStudentSexUnkonwRadioButton))
						.addGroup(groupLayout.createSequentialGroup()
							.addComponent(label_5)
							.addGap(18)
							.addComponent(editStudentPasswordPasswordField)))
					.addGap(30)
					.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
						.addComponent(submitEditButton)
						.addComponent(deleteStudentButton))
					.addGap(33))
				.addGroup(groupLayout.createSequentialGroup()
					.addContainerGap(126, Short.MAX_VALUE)
					.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 577, GroupLayout.PREFERRED_SIZE)
					.addGap(123))
		);
		groupLayout.setVerticalGroup(
			groupLayout.createParallelGroup(Alignment.LEADING)
				.addGroup(groupLayout.createSequentialGroup()
					.addGap(34)
					.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
						.addComponent(label)
						.addComponent(serachStudentNameTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(searchStudentComboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(label_1)
						.addComponent(searchButton))
					.addGap(36)
					.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, 307, GroupLayout.PREFERRED_SIZE)
					.addGap(41)
					.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
						.addComponent(editStudentSexManRadioButton)
						.addComponent(editStudentSexFemalRadioButton)
						.addComponent(editStudentSexUnkonwRadioButton)
						.addComponent(submitEditButton)
						.addComponent(editStudentNameTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(label_4)
						.addComponent(label_2))
					.addPreferredGap(ComponentPlacement.RELATED, 12, Short.MAX_VALUE)
					.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
						.addComponent(editStudentClassComboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(label_5)
						.addComponent(editStudentPasswordPasswordField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
						.addComponent(deleteStudentButton)
						.addComponent(label_3))
					.addGap(20))
		);
		
		studentListTable = new JTable();
		studentListTable.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent arg0) {
				selectedTableRow(arg0);
			}
		});
		studentListTable.setModel(new DefaultTableModel(
			new Object[][] {
			},
			new String[] {
				"\u5B66\u751F\u7F16\u53F7", "\u5B66\u751F\u59D3\u540D", "\u6240\u5C5E\u73ED\u7EA7", "\u5B66\u751F\u6027\u522B", "\u767B\u5F55\u5BC6\u7801"
			}
		) {
			boolean[] columnEditables = new boolean[] {
				false, true, true, true, false
			};
			public boolean isCellEditable(int row, int column) {
				return columnEditables[column];
			}
		});
		scrollPane.setViewportView(studentListTable);
		getContentPane().setLayout(groupLayout);
		setStudentClassInfo();
		setTable(new Student());
		setAuthority();
	}
	protected void submitEditAct(ActionEvent ae) {
		// TODO Auto-generated method stub
		int row = studentListTable.getSelectedRow();
		if(row == -1){
			JOptionPane.showMessageDialog(this, "请选中要修改的数据！");
			return;
		}
		String studentName = editStudentNameTextField.getText().toString();
		String studentPassword = editStudentPasswordPasswordField.getText().toString();
		if(StringUtil.isEmpty(studentName)){
			JOptionPane.showMessageDialog(this, "请填写学生姓名！");
			return;
		}
		if(StringUtil.isEmpty(studentPassword)){
			JOptionPane.showMessageDialog(this, "请填写密码！");
			return;
		}
		
		Student student = new Student();
		student.setName(studentName);
		student.setPassword(studentPassword);
		StudentClass sc = (StudentClass)editStudentClassComboBox.getSelectedItem();
		student.setClassId(sc.getId());
		student.setId(Integer.parseInt(studentListTable.getValueAt(row, 0).toString()));
		if(editStudentSexManRadioButton.isSelected())student.setSex(editStudentSexManRadioButton.getText().toString());
		if(editStudentSexFemalRadioButton.isSelected())student.setSex(editStudentSexFemalRadioButton.getText().toString());
		if(editStudentSexUnkonwRadioButton.isSelected())student.setSex(editStudentSexUnkonwRadioButton.getText().toString());
		StudentDao studentDao = new StudentDao();
		if(studentDao.update(student)){
			JOptionPane.showMessageDialog(this, "更新成功！");
		}else{
			JOptionPane.showMessageDialog(this, "更新失败！");
		}
		studentDao.closeDao();
		setTable(new Student());
	}

	protected void deleteStudent(ActionEvent ae) {
		// TODO Auto-generated method stub
		
		int row = studentListTable.getSelectedRow();
		if(row == -1){
			JOptionPane.showMessageDialog(this, "请选中要删除的数据！");
			return;
		}
		if(JOptionPane.showConfirmDialog(this, "您确定删除么？") != JOptionPane.OK_OPTION){
			return;
		}
		StudentDao studentDao = new StudentDao();
		SelectedCourseDao selectedCourseDao=new SelectedCourseDao();
		selectedCourseDao.deleteBySids(Integer.parseInt(studentListTable.getValueAt(row, 0).toString()));
		if(studentDao.delete(Integer.parseInt(studentListTable.getValueAt(row, 0).toString()))){
			JOptionPane.showMessageDialog(this, "删除成功！");
		}else{
			JOptionPane.showMessageDialog(this, "删除失败！");
		}
		studentDao.closeDao();
		setTable(new Student());
	}
	protected void selectedTableRow(MouseEvent me) {
		// TODO Auto-generated method stub
		DefaultTableModel dft = (DefaultTableModel) studentListTable.getModel();
		editStudentNameTextField.setText(dft.getValueAt(studentListTable.getSelectedRow(), 1).toString());
		editStudentPasswordPasswordField.setText(dft.getValueAt(studentListTable.getSelectedRow(), 4).toString());
		String className = dft.getValueAt(studentListTable.getSelectedRow(), 2).toString();
		for(int i=0;i studentList = studentDao.getStudentList(student);
		for (Student s : studentList) {
			Vector v = new Vector();
			v.add(s.getId());
			v.add(s.getName());
			v.add(getClassNameById(s.getClassId()));
			v.add(s.getSex());
			v.add(s.getPassword());
			dft.addRow(v);
		}
		studentDao.closeDao();
	}
	private void setStudentClassInfo(){
		ClassDao classDao = new ClassDao();
		studentClassList = classDao.getClassList(new StudentClass());
		for (StudentClass sc : studentClassList) {
			searchStudentComboBox.addItem(sc);
			editStudentClassComboBox.addItem(sc);
		}
		classDao.closeDao();
	}
	private String getClassNameById(int id){
		for (StudentClass sc : studentClassList) {
			if(sc.getId() == id)return sc.getName();
		}
		return "";
	}
	private void setAuthority(){
		if("学生".equals(MainFrm.userType.getName())){
			Student s = (Student)MainFrm.userObject;
			serachStudentNameTextField.setText(s.getName());
			serachStudentNameTextField.setEnabled(false);
			deleteStudentButton.setEnabled(false);
			for(int i=0;i

eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.7
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.source=1.7

	StudentInfo
	
	
	
	
		
			org.eclipse.jdt.core.javabuilder
			
			
		
	
	
		org.eclipse.jdt.core.javanature
	

讲解视频链接呈上：https://www.bilibili.com/video/BV1uZ4y1H7JR?share_medium=android&share_plat=android&share_source=QQ&share_tag=s_i×tamp=1591513579&unique_k=Ts8HLA

结束啦！happy ending！