course

kecheng/.classpath

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="D:/个人/下载/mysql-connector-java-8.0.16.jar">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

kecheng/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>kecheng</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

kecheng/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,14 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=17
+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.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=17

kecheng/src/com/system/dao/CourseDao.java

@@ -0,0 +1,15 @@
+package com.system.dao;
+
+import java.sql.SQLException;
+import java.util.List;
+
+import com.system.javaBean.Course;
+
+public interface CourseDao {
+	public Course selectByCno(int cno) throws SQLException;
+	public List<Course> courseRes() throws Exception;
+	public boolean insert(String cno, String cname, String ccredit, String ctime) throws SQLException;
+	public boolean delete(String cno) throws SQLException;
+	public Course select(String cno) throws SQLException;
+	public boolean update(String cno, String cname, String ccredit, String ctime) throws SQLException;
+}

kecheng/src/com/system/impl/Courseimpl.java

@@ -0,0 +1,151 @@
+package com.system.impl;
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.system.javaBean.Course;
+import com.system.utils.DB;
+
+
+public class Courseimpl {
+	Connection conn = null;
+	DB dataBase = new DB();
+	
+	// 按照课程号进行查询
+	public Course selectByCno(int cno) throws SQLException {
+		conn = dataBase.getConnection();
+		Statement stat = null;
+		ResultSet rs = null;
+		String sql = "SELECT * FROM course where Cno = " + cno;
+		stat = conn.createStatement();
+		rs = stat.executeQuery(sql);
+		Course course = new Course();
+		while (true) {
+			if (rs.next()) {
+				course.setCnum(rs.getString("Cnum"));
+				course.setCno(rs.getString("Cno"));
+				course.setCname(rs.getString("Cname"));
+				course.setCcredit(rs.getString("Ccredit"));
+				course.setCtime(rs.getString("Ctime"));
+			} else
+				break;
+		}
+		conn.close();
+		return course;
+
+	}
+
+	//课程信息
+	public List<Course> courseRes() throws Exception {
+		List<Course> courses = new ArrayList<>();
+		Course course;
+		conn = dataBase.getConnection();
+		Statement stat = null;
+		ResultSet rs = null;
+		stat = conn.createStatement();
+		String sql = "SELECT * FROM course";
+		rs = stat.executeQuery(sql);
+		while (true) {
+            if ( rs.next() ) {
+				course = new Course();
+            	course.setCnum( rs.getString("Cnum") );
+            	course.setCno( rs.getString("Cno") );
+            	course.setCname( rs.getString("Cname") );
+            	course.setCcredit( rs.getString("Ccredit") );
+            	course.setCtime( rs.getString("Ctime") );
+            	courses.add(course);
+            }else 
+            	break;
+        }
+		conn.close();
+		return courses;
+	}
+	
+	//增加课程
+	public boolean insert(String cno, String cname, String ccredit, String ctime) throws SQLException {
+		try {
+			conn = dataBase.getConnection();
+			Statement stat = null;
+			stat = conn.createStatement();
+			String sql = "SELECT * FROM course WHERE cno = '"+cno+"'";
+			if ( stat.executeQuery(sql).next() ) {
+				return false;
+			}
+			sql = "INSERT INTO course (cno,cname,ccredit,ctime)"
+				 + " VALUES ( '"+cno+"','"+cname+"', '"+ccredit+"' ,'"+ctime+"')";
+			if ( stat.executeUpdate(sql)==1 ){
+				return true;
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		conn.close();
+		return false;
+	}
+	
+	//删除课程
+	public boolean delete(String cno) throws SQLException  {
+		try {
+			conn = dataBase.getConnection();
+			Statement stat = null;
+			stat = conn.createStatement();
+			String sql = "DELETE FROM course WHERE cno = '"+cno+"' ";		
+			if ( stat.executeUpdate(sql)==1 ){
+				return true;
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		conn.close();
+		return false;
+	}
+	
+	//查询课程
+	public Course select(String cno) throws SQLException  {
+		try {
+			conn = dataBase.getConnection();
+			Statement stat = null;
+			stat = conn.createStatement();
+			ResultSet rs = null;
+			Course course = null;
+			String sql = "SELECT * FROM course WHERE cno = '"+cno+"' ";		
+			rs = stat.executeQuery(sql);
+			if ( rs.next() ){			
+				course = new Course();
+				course.setCno( rs.getString("Cno") );
+				course.setCname( rs.getString("Cname") );
+				course.setCcredit( rs.getString("Ccredit") );
+				course.setCtime( rs.getString("Ctime") );
+				return course;
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		conn.close();
+		return null;
+	}
+	
+	//更新课程
+	public boolean update(String cno, String cname, String ccredit, String ctime) throws SQLException  {
+		try {
+			conn = dataBase.getConnection();
+			Statement stat = null;
+			stat = conn.createStatement();
+			String sql = "UPDATE course SET Cno = '"+cno+"', Cname = '"+cname+"', Ccredit = '"+ccredit+"', Ctime = '"+ctime+"' "
+					+ "WHERE Cno = '"+cno+"' ";		
+			if ( stat.executeUpdate(sql)==1 ){
+				return true;
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		conn.close();
+		return false;
+	}
+	
+	
+}
+

kecheng/src/com/system/impl/DB.java

@@ -0,0 +1,102 @@
+package com.system.impl;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class DB {
+
+	// 数据库地址
+	private String Driver_name = "jdbc:mysql://localhost:3306/student_a?serverTimezone=Asia/Shanghai&useSSL=false";
+	// 数据库用户名
+	private String USER = "root"; 
+	// 数据库密码
+	private String PASS = "852456";
+	// 数据库连接
+	public static Connection con;
+
+	// 构造方法
+	public DB() {
+		try {
+			// 加载驱动
+			Class.forName("com.mysql.cj.jdbc.Driver"); 
+			// 获取连接
+			con = DriverManager.getConnection(Driver_name, USER, PASS);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	// 获取连接
+	public static Connection getConnection() {
+		if (con == null) {
+			new DB();
+		}
+		return con;
+	}
+
+	// 释放连接
+	public static void close(ResultSet resultSet, Statement statement, Connection connection) {
+
+		if (resultSet != null) {
+			try {
+				resultSet.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+
+		if (statement != null) {
+			try {
+				statement.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+
+		if (connection != null) {
+			try {
+				connection.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	// 释放连接
+	public static void close(Statement statement, Connection connection) {
+
+		if (statement != null) {
+			try {
+				statement.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+
+		if (connection != null) {
+			try {
+				connection.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	// 释放连接
+	public static void close(Connection connection) {
+
+		if (connection != null) {
+			try {
+				connection.close();
+			} catch (SQLException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	
+
+}

kecheng/src/com/system/javaBean/Course.java

@@ -0,0 +1,70 @@
+package com.system.javaBean;
+
+public class Course {
+
+	private String cnum;
+	private String cno;
+	private String cname;
+	private String ccredit;
+	private String ctime;
+
+	public Course() {
+		super();
+	}
+
+	public Course(String cnum, String cno, String cname, String ccredit, String ctime) {
+		super();
+		this.cnum = cnum;
+		this.cno = cno;
+		this.cname = cname;
+		this.ccredit = ccredit;
+		this.ctime = ctime;
+	}
+
+	public String getCnum() {
+		return cnum;
+	}
+
+	public void setCnum(String cnum) {
+		this.cnum = cnum;
+	}
+
+	public String getCno() {
+		return cno;
+	}
+
+	public void setCno(String cno) {
+		this.cno = cno;
+	}
+
+	public String getCname() {
+		return cname;
+	}
+
+	public void setCname(String cname) {
+		this.cname = cname;
+	}
+
+	public String getCcredit() {
+		return ccredit;
+	}
+
+	public void setCcredit(String ccredit) {
+		this.ccredit = ccredit;
+	}
+
+	public String getCtime() {
+		return ctime;
+	}
+
+	public void setCtime(String ctime) {
+		this.ctime = ctime;
+	}
+
+	@Override
+	public String toString() {
+		return "Course [cnum=" + cnum + ", cno=" + cno + ", cname=" + cname + ", ccredit=" + ccredit + ", ctime="
+				+ ctime + "]";
+	}
+
+}

kecheng/src/com/system/view/Bg.java

@@ -0,0 +1,148 @@
+package com.system.view;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.SystemColor;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.SwingConstants;
+import javax.swing.border.EmptyBorder;
+
+public class Bg extends JFrame {
+
+	private JPanel contentPane;
+	private JPanel panel_2; // 学生模块
+	private JPanel panel_3; // 成绩模块
+	private JPanel panel_4; // 课程模块
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// BgAdmin frame = new BgAdmin();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public Bg(String flag) {
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		setBounds(100, 100, 933, 586);
+		contentPane = new JPanel();
+		contentPane.setBackground(Color.WHITE);
+		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		setContentPane(contentPane);
+		contentPane.setLayout(null);
+
+		JPanel panel = new JPanel();
+		panel.setBackground(SystemColor.activeCaption);
+		panel.setBounds(0, 0, 917, 53);
+		contentPane.add(panel);
+		panel.setLayout(null);
+
+		JLabel label = new JLabel("学生信息管理系统");
+		label.setHorizontalAlignment(SwingConstants.CENTER);
+		label.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		label.setBounds(371, 10, 213, 33);
+		panel.add(label);
+
+		JPanel panel_1 = new JPanel();
+		panel_1.setBackground(SystemColor.activeCaptionBorder);
+		panel_1.setBounds(0, 52, 166, 495);
+		contentPane.add(panel_1);
+		panel_1.setLayout(null);
+
+		JLabel lblNewLabel = new JLabel("学生模块");
+		lblNewLabel.addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseClicked(MouseEvent arg0) {
+
+				if (flag.equals("admin")) {
+					// 管理员端
+					setVisible(false);
+					new StudentOpetion("admin").setVisible(true);
+				} else {
+					// 学生端
+					setVisible(false);
+					new StudentOpetion("学生").setVisible(true);
+				}
+
+			}
+		});
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setBounds(0, 0, 166, 58);
+		panel_1.add(lblNewLabel);
+
+		JLabel lblNewLabel_1 = new JLabel("成绩模块");
+		lblNewLabel_1.addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseClicked(MouseEvent e) {
+
+				if (flag.equals("admin")) {
+					// 管理员端
+					setVisible(false);
+					new ScoreOperation("admin").setVisible(true);
+				} else {
+					// 学生端
+					setVisible(false);
+					new ScoreOperation("学生").setVisible(true);
+				}
+			}
+		});
+		lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1.setBounds(0, 63, 166, 58);
+		panel_1.add(lblNewLabel_1);
+
+		JLabel lblNewLabel_2 = new JLabel("课程模块");
+		lblNewLabel_2.addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseClicked(MouseEvent e) {
+
+				if (flag.equals("admin")) {
+					// 管理员端
+					setVisible(false);
+					new CourseOperation("admin").setVisible(true);
+				} else {
+					// 学生端
+					setVisible(false);
+					new CourseOperation("学生").setVisible(true);
+				}
+
+			}
+		});
+		lblNewLabel_2.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_2.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_2.setBounds(0, 131, 166, 58);
+		panel_1.add(lblNewLabel_2);
+
+		JLabel lblNewLabel_3 = new JLabel("退出系统");
+		lblNewLabel_3.addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseClicked(MouseEvent arg0) {
+				System.exit(0);
+			}
+		});
+		lblNewLabel_3.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_3.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_3.setBounds(0, 199, 166, 58);
+		panel_1.add(lblNewLabel_3);
+
+
+	}
+
+}

kecheng/src/com/system/view/CourseAdd.java

@@ -0,0 +1,157 @@
+package com.system.view;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.sql.SQLException;
+
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+
+import com.system.dao.CourseDao;
+
+public class CourseAdd extends Bg {
+
+	private JPanel contentPane;
+	private JTextField cnoField;
+	private JTextField cnameField;
+	private JTextField ccreditField;
+	private JTextField ctimeField;
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// CourseAdd frame = new CourseAdd();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public CourseAdd(String a) {
+		// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		// setBounds(100, 100, 450, 300);
+		// contentPane = new JPanel();
+		// contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		// contentPane.setLayout(new BorderLayout(0, 0));
+		// setContentPane(contentPane);
+		super(a);
+
+		JPanel panel = new JPanel();
+		panel.setBackground(Color.WHITE);
+		panel.setBounds(165, 52, 752, 495);
+		getContentPane().add(panel);
+		panel.setLayout(null);
+
+		JLabel lblNewLabel = new JLabel("添加课程");
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 18));
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setBounds(263, 47, 217, 37);
+		panel.add(lblNewLabel);
+
+		JLabel lblNewLabel_1 = new JLabel("课程号：");
+		lblNewLabel_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1.setBounds(216, 94, 83, 37);
+		panel.add(lblNewLabel_1);
+
+		JLabel lblNewLabel_1_1 = new JLabel("课程名：");
+		lblNewLabel_1_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1_1.setBounds(216, 161, 83, 37);
+		panel.add(lblNewLabel_1_1);
+
+		JLabel lblNewLabel_1_2 = new JLabel("学分：");
+		lblNewLabel_1_2.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1_2.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1_2.setBounds(216, 229, 83, 37);
+		panel.add(lblNewLabel_1_2);
+
+		JLabel lblNewLabel_1_2_1 = new JLabel("学时：");
+		lblNewLabel_1_2_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1_2_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1_2_1.setBounds(216, 292, 83, 37);
+		panel.add(lblNewLabel_1_2_1);
+
+		cnoField = new JTextField();
+		cnoField.setBounds(297, 94, 271, 37);
+		panel.add(cnoField);
+		cnoField.setColumns(10);
+
+		cnameField = new JTextField();
+		cnameField.setColumns(10);
+		cnameField.setBounds(297, 161, 271, 37);
+		panel.add(cnameField);
+
+		ccreditField = new JTextField();
+		ccreditField.setColumns(10);
+		ccreditField.setBounds(297, 229, 271, 37);
+		panel.add(ccreditField);
+
+		ctimeField = new JTextField();
+		ctimeField.setColumns(10);
+		ctimeField.setBounds(297, 292, 271, 37);
+		panel.add(ctimeField);
+
+		JButton btnNewButton = new JButton("添加");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+
+				String cno = cnoField.getText();
+				String cname = cnameField.getText();
+				String ccredit = ccreditField.getText();
+				String ctime = ctimeField.getText();
+
+				if (cno.equals("") || cname.equals("") || ccredit.equals("") || ctime.equals("")) {
+					JOptionPane.showMessageDialog(null, "请输入完整的信息！");
+				} else {
+
+					CourseDao courseDao = new CourseDao();
+					boolean istrue = false;
+					try {
+						istrue = courseDao.insert(cno, cname, ccredit, ctime);
+					} catch (SQLException e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
+					}
+					if (istrue) {
+						JOptionPane.showMessageDialog(null, "增加课程成功！");
+					} else {
+						JOptionPane.showMessageDialog(null, "增加课程失败，该课程号已存在！");
+					}
+				}
+			}
+		});
+		btnNewButton.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton.setBounds(216, 374, 93, 37);
+		panel.add(btnNewButton);
+
+		JButton btnNewButton_1 = new JButton("重置");
+		btnNewButton_1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				cnoField.setText("");
+				cnameField.setText("");
+				ccreditField.setText("");
+				ctimeField.setText("");
+			}
+		});
+		btnNewButton_1.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton_1.setBounds(514, 374, 93, 37);
+		panel.add(btnNewButton_1);
+	}
+
+}

kecheng/src/com/system/view/CourseDelect.java

@@ -0,0 +1,104 @@
+package com.system.view;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.sql.SQLException;
+
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+
+import com.system.dao.CourseDao;
+
+public class CourseDelect extends Bg {
+
+	private JPanel contentPane;
+	private JTextField keyField;
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// CourseDelect frame = new CourseDelect();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public CourseDelect(String a) {
+		// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		// setBounds(100, 100, 450, 300);
+		// contentPane = new JPanel();
+		// contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		// contentPane.setLayout(new BorderLayout(0, 0));
+		// setContentPane(contentPane);
+		super(a);
+
+		JPanel panel = new JPanel();
+		panel.setBackground(Color.WHITE);
+		panel.setBounds(165, 54, 752, 493);
+		getContentPane().add(panel);
+		panel.setLayout(null);
+
+		JLabel lblNewLabel = new JLabel("删除课程");
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 18));
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setBounds(275, 55, 189, 33);
+		panel.add(lblNewLabel);
+
+		JLabel lblNewLabel_1 = new JLabel("课程号：");
+		lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1.setBounds(202, 120, 126, 33);
+		panel.add(lblNewLabel_1);
+
+		keyField = new JTextField();
+		keyField.setBounds(303, 120, 204, 33);
+		panel.add(keyField);
+		keyField.setColumns(10);
+
+		JButton btnNewButton = new JButton("删除");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String key = keyField.getText();
+				if (key.equals("")) {
+					JOptionPane.showMessageDialog(null, "请输入课程号！");
+				} else {
+
+					CourseDao course = new CourseDao();
+					boolean flag = false;
+					try {
+						flag = course.delete(key);
+					} catch (SQLException e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
+					}
+					if (flag) {
+						JOptionPane.showMessageDialog(null, "课程删除成功！");
+					} else
+						JOptionPane.showMessageDialog(null, "课程删除失败，请检查课程号是否正确！");
+
+				}
+			}
+		});
+		btnNewButton.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton.setBounds(525, 120, 102, 33);
+		panel.add(btnNewButton);
+
+	}
+
+}

kecheng/src/com/system/view/CourseOperation.java

@@ -0,0 +1,113 @@
+package com.system.view;
+
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.SwingConstants;
+
+public class CourseOperation extends Bg {
+
+	private JPanel contentPane;
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// CourseOperation frame = new CourseOperation();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public CourseOperation(String a) {
+		// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		// setBounds(100, 100, 450, 300);
+		// contentPane = new JPanel();
+		// contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		// contentPane.setLayout(new BorderLayout(0, 0));
+		// setContentPane(contentPane);
+		super(a);
+
+		JLabel lblNewLabel = new JLabel("课程相关操作");
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 18));
+		lblNewLabel.setBounds(370, 94, 352, 43);
+		getContentPane().add(lblNewLabel);
+
+		JButton btnNewButton = new JButton("查询课程");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				setVisible(true);
+				new CourseSelect().setVisible(true);
+			}
+		});
+		btnNewButton.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		btnNewButton.setBounds(353, 174, 148, 37);
+		getContentPane().add(btnNewButton);
+
+		JButton btnNewButton_1 = new JButton("添加课程");
+		btnNewButton_1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+
+				if (a.equals("学生")) {
+					JOptionPane.showMessageDialog(null, "没有权限！");
+				} else {
+					setVisible(false);
+					new CourseAdd(a).setVisible(true);
+				}
+
+			}
+		});
+		btnNewButton_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		btnNewButton_1.setBounds(622, 174, 148, 37);
+		getContentPane().add(btnNewButton_1);
+
+		JButton btnNewButton_2 = new JButton("修改课程");
+		btnNewButton_2.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+
+				if (a.equals("学生")) {
+					JOptionPane.showMessageDialog(null, "没有权限！");
+				} else {
+					setVisible(false);
+					new CourseUpdate(a).setVisible(true);
+				}
+
+			}
+		});
+		btnNewButton_2.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		btnNewButton_2.setBounds(353, 274, 148, 37);
+		getContentPane().add(btnNewButton_2);
+
+		JButton btnNewButton_3 = new JButton("删除课程");
+		btnNewButton_3.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				if (a.equals("学生")) {
+					JOptionPane.showMessageDialog(null, "没有权限！");
+				} else {
+					setVisible(false);
+					new CourseDelect(a).setVisible(true);
+				}
+
+			}
+		});
+		btnNewButton_3.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		btnNewButton_3.setBounds(622, 274, 148, 37);
+		getContentPane().add(btnNewButton_3);
+	}
+
+}

kecheng/src/com/system/view/CourseSelect.java

@@ -0,0 +1,163 @@
+package com.system.view;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.SystemColor;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.sql.SQLException;
+import java.util.List;
+import java.util.Vector;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+import javax.swing.border.EmptyBorder;
+
+import com.system.dao.CourseDao;
+import com.system.entity.Course;
+
+public class CourseSelect extends JFrame {
+
+	private JPanel contentPane;
+	private JTextField keyField;
+	private JTable table;
+	private JScrollPane scrollPane;
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// CourseSelect frame = new CourseSelect();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public CourseSelect() {
+		setBounds(100, 100, 780, 486);
+		contentPane = new JPanel();
+		contentPane.setBackground(Color.WHITE);
+		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		setContentPane(contentPane);
+		contentPane.setLayout(null);
+
+		final Vector vector = new Vector();
+		vector.add("序号");
+		vector.add("课程号");
+		vector.add("课程名");
+		vector.add("学分");
+		vector.add("学时");
+
+		Vector tData = new Vector();
+
+		JPanel panel = new JPanel();
+		panel.setBackground(SystemColor.activeCaption);
+		panel.setBounds(0, 0, 764, 45);
+		contentPane.add(panel);
+		panel.setLayout(null);
+
+		JLabel lblNewLabel = new JLabel("课程基本上信息");
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel.setBounds(263, 10, 191, 25);
+		panel.add(lblNewLabel);
+
+		JPanel panel_1 = new JPanel();
+		panel_1.setBackground(Color.WHITE);
+		panel_1.setBounds(0, 44, 764, 51);
+		contentPane.add(panel_1);
+		panel_1.setLayout(null);
+
+		JLabel lblNewLabel_1 = new JLabel("课程号：");
+		lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		lblNewLabel_1.setBounds(177, 10, 79, 31);
+		panel_1.add(lblNewLabel_1);
+
+		keyField = new JTextField();
+		keyField.setBounds(247, 10, 194, 31);
+		panel_1.add(keyField);
+		keyField.setColumns(10);
+
+		JButton btnNewButton = new JButton("查询");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String key = keyField.getText();
+				if (key.equals("")) {
+					JOptionPane.showMessageDialog(null, "课程号不能为空！");
+				} else {
+					tData.clear();
+					int a = Integer.parseInt(key);
+					CourseDao user = new CourseDao();
+					try {
+						Course course = user.selectByCno(a);
+						Vector v = new Vector();
+						v.add(course.getCnum());
+						v.add(course.getCno());
+						v.add(course.getCname());
+						v.add(course.getCcredit());
+						v.add(course.getCtime());
+						tData.add(v);
+						table = new JTable(tData, vector);
+						scrollPane.setViewportView(table);
+
+					} catch (SQLException e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
+					}
+				}
+			}
+		});
+		btnNewButton.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton.setBounds(451, 11, 79, 28);
+		panel_1.add(btnNewButton);
+
+		scrollPane = new JScrollPane();
+		scrollPane.setBounds(0, 94, 764, 353);
+		contentPane.add(scrollPane);
+
+
+
+
+		tData.clear();
+		CourseDao user = new CourseDao();
+		try {
+			List<Course> list = user.courseRes();
+			for (int i = 0; i < list.size(); i++) {
+				Vector v = new Vector();
+				v.add(list.get(i).getCnum());
+				v.add(list.get(i).getCno());
+				v.add(list.get(i).getCname());
+				v.add(list.get(i).getCcredit());
+				v.add(list.get(i).getCtime());
+				tData.add(v);
+			}
+
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+
+		table = new JTable(tData, vector);
+		scrollPane.setViewportView(table);
+
+
+
+	}
+}

kecheng/src/com/system/view/CourseUpdate.java

@@ -0,0 +1,190 @@
+package com.system.view;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.sql.SQLException;
+
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.SwingConstants;
+
+import com.system.dao.CourseDao;
+import com.system.entity.Course;
+
+public class CourseUpdate extends Bg {
+
+	private JPanel contentPane;
+	private JTextField keyField;
+	private JTextField cnoField;
+	private JTextField cnameField;
+	private JTextField ccreditField;
+	private JTextField ctimeField;
+
+	/**
+	 * Launch the application.
+	 */
+	// public static void main(String[] args) {
+	// EventQueue.invokeLater(new Runnable() {
+	// public void run() {
+	// try {
+	// CourseUpdate frame = new CourseUpdate();
+	// frame.setVisible(true);
+	// } catch (Exception e) {
+	// e.printStackTrace();
+	// }
+	// }
+	// });
+	// }
+
+	/**
+	 * Create the frame.
+	 */
+	public CourseUpdate(String a) {
+		// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		// setBounds(100, 100, 450, 300);
+		// contentPane = new JPanel();
+		// contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
+		// contentPane.setLayout(new BorderLayout(0, 0));
+		// setContentPane(contentPane);
+		super(a);
+
+		JPanel panel = new JPanel();
+		panel.setBackground(Color.WHITE);
+		panel.setBounds(166, 52, 751, 495);
+		getContentPane().add(panel);
+		panel.setLayout(null);
+
+		JLabel lblNewLabel = new JLabel("修改课程");
+		lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel.setFont(new Font("微软雅黑", Font.BOLD, 18));
+		lblNewLabel.setBounds(256, 38, 233, 38);
+		panel.add(lblNewLabel);
+
+		JLabel lblNewLabel_1 = new JLabel("课程号：");
+		lblNewLabel_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
+		lblNewLabel_1.setBounds(162, 89, 94, 28);
+		panel.add(lblNewLabel_1);
+
+		keyField = new JTextField();
+		keyField.setBounds(254, 86, 224, 37);
+		panel.add(keyField);
+		keyField.setColumns(10);
+
+		JButton btnNewButton = new JButton("查询");
+		btnNewButton.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String key = keyField.getText();
+				if (key.equals("")) {
+					JOptionPane.showMessageDialog(null, "请输入课程号！");
+				} else {
+					CourseDao course = new CourseDao();
+					Course c = new Course();
+					try {
+						c = course.select(key);
+					} catch (SQLException e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
+					}
+					if (c != null) {
+						cnoField.setText(String.valueOf(c.getCno()));
+						cnameField.setText(c.getCname());
+						ccreditField.setText(c.getCcredit());
+						ctimeField.setText(c.getCtime());
+					} else {
+						JOptionPane.showMessageDialog(null, "课程表里没有此课程的信息，无法修改！");
+					}
+				}
+
+
+			}
+		});
+		btnNewButton.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton.setBounds(496, 89, 93, 34);
+		panel.add(btnNewButton);
+
+		JLabel lblNewLabel_2 = new JLabel("课程基本信息");
+		lblNewLabel_2.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_2.setBounds(162, 156, 170, 28);
+		panel.add(lblNewLabel_2);
+
+		JLabel lblNewLabel_3 = new JLabel("课程号：");
+		lblNewLabel_3.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_3.setBounds(162, 211, 73, 28);
+		panel.add(lblNewLabel_3);
+
+		JLabel lblNewLabel_3_1 = new JLabel("课程名：");
+		lblNewLabel_3_1.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_3_1.setBounds(162, 271, 73, 28);
+		panel.add(lblNewLabel_3_1);
+
+		JLabel lblNewLabel_3_2 = new JLabel("学分：");
+		lblNewLabel_3_2.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_3_2.setBounds(162, 332, 73, 28);
+		panel.add(lblNewLabel_3_2);
+
+		JLabel lblNewLabel_3_3 = new JLabel("学时：");
+		lblNewLabel_3_3.setFont(new Font("微软雅黑", Font.BOLD, 16));
+		lblNewLabel_3_3.setBounds(162, 389, 73, 28);
+		panel.add(lblNewLabel_3_3);
+
+		cnoField = new JTextField();
+		cnoField.setBounds(238, 208, 240, 38);
+		panel.add(cnoField);
+		cnoField.setColumns(10);
+
+		cnameField = new JTextField();
+		cnameField.setColumns(10);
+		cnameField.setBounds(238, 268, 240, 38);
+		panel.add(cnameField);
+
+		ccreditField = new JTextField();
+		ccreditField.setColumns(10);
+		ccreditField.setBounds(238, 329, 240, 38);
+		panel.add(ccreditField);
+
+		ctimeField = new JTextField();
+		ctimeField.setColumns(10);
+		ctimeField.setBounds(238, 386, 240, 38);
+		panel.add(ctimeField);
+
+		JButton btnNewButton_1 = new JButton("修改");
+		btnNewButton_1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String cno = cnoField.getText();
+				String cname = cnameField.getText();
+				String ccredit = ccreditField.getText();
+				String ctime = ctimeField.getText();
+
+				if (cno.equals("") || cname.equals("") || ccredit.equals("") || ctime.equals("")) {
+					JOptionPane.showMessageDialog(null, "请输入完整的信息！");
+				} else {
+
+					CourseDao courseDao = new CourseDao();
+					boolean istrue = false;
+					try {
+						istrue = courseDao.update(cno, cname, ccredit, ctime);
+					} catch (SQLException e1) {
+						// TODO Auto-generated catch block
+						e1.printStackTrace();
+					}
+					if (istrue) {
+						JOptionPane.showMessageDialog(null, "修改成功！");
+					} else {
+						JOptionPane.showMessageDialog(null, "修改失败，请检查输入信息是否正确！");
+					}
+				}
+			}
+		});
+		btnNewButton_1.setBackground(Color.RED);
+		btnNewButton_1.setFont(new Font("微软雅黑", Font.BOLD, 14));
+		btnNewButton_1.setBounds(280, 447, 136, 38);
+		panel.add(btnNewButton_1);
+	}
+
+}

kecheng/src/module-info.java

@@ -0,0 +1,10 @@
+/**
+ * 
+ */
+/**
+ * 
+ */
+module kaoqin {
+	requires java.sql;
+	requires java.desktop;
+}