系统功能需求
- 主菜单：
- 选择进入学生教务管理系统；
- 选择进入教师教务管理系统；
- 选择进入管理员教务管理系统；
- 学生教务管理系统：
- 查询学生表；
- 查询个人信息；
- 查询班级信息；
- 选修课程；
- 退出学生系统；
- 教师教务管理系统：
- 查询教师表；
- 查询个人信息；
- 查询班级信息；
- 选授课程；
- 退出教师系统；
- 管理员教务管理系统：
- 查询学生表；
- 查询教师表；
- 查询班级表；
- 添加学生信息；
- 修改学生信息；
- 删除学生信息；
- 添加教师信息；
- 修改教师信息；
- 删除教师信息；
- 修改成绩表；
- 修改课程表；
- 退出系统；
学生登录教务系统代码：
package sun19bao;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.sql.*;
import java.util.Scanner;
public class Student {
public void Mether0() throws Exception {
boolean t=true;
ResultSet rs0=null;
Connection connection=null;
PreparedStatement p1=null;
PreparedStatement p2=null;
Scanner s = new Scanner(System.in);
System.out.println("请输入学号:");
String user = s.nextLine();
System.out.println("请输入密码:");
String password = s.nextLine();
try {
//1.加载数据库驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//2.通过DriverManage获取连接
String url = "jdbc:mysql://localhost:3306/jiaowu";
connection = DriverManager.getConnection(url, user, password);
while (t) {
System.out.println("----------欢迎使用学生教务系统-------------");
System.out.println("------------1.查询学生表-------------");
System.out.println("------------2.查询个人信息-------------");//加成绩
System.out.println("------------3.查询班级信息-------------");
System.out.println("------------4.选修课程-------------");
System.out.println("------------5.查询课程表-------------");
System.out.println("------------6.退出系统-------------");
System.out.println("请输入你的选择:");
int a = s.nextInt();
switch (a) {
case 1:
String sql0 = "select*from student";
p1 = connection.prepareStatement(sql0);
rs0 = p1.executeQuery(sql0);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t" + rs0.getString("Sname") +
"\t" + rs0.getInt("Sage") + "\t" + rs0.getString("Smajor") + "\t");
}
break;
case 2:
String sql1 = "select * from student where Sname=?";
p1 = connection.prepareStatement(sql1);
System.out.println("请输入要查询的学生名");
String name=s.next();
p1.setObject(1,name);
rs0 = p1.executeQuery();
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t" + rs0.getString("Sname") +
"\t" + rs0.getInt("Sage") + "\t" + rs0.getString("Smajor") + "\t");
}
break;
case 3:
String sql2 = "select * from Class";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Rno") + "\t" + rs0.getString("Rname") +
"\t" + rs0.getInt("Rnum") + "\t" + rs0.getString("Rteacher") + "\t");
}
break;
case 4:
sql2="select * from Sc1";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t"
+ rs0.getInt("Cno") + "\t" + rs0.getString("Came") + "\t");
}
String sql="insert into Sc1 (Sno,Cno)values(?,?);";
p2= connection.prepareStatement(sql);
System.out.println("请输入你的学号：");
String Sno=s.next();
p2.setObject(1,Sno);
System.out.println("请输入你要选择的课程号：");
String Cno=s.next();
p2.setObject(2,Cno);
p2.executeUpdate();
System.out.println("选课成功！");
break;
case 5:
sql2="select Course.Cno,Came,Ccredit,Tc.Tno,Tame from Tc,Teacher,Course where\n" +
" Course.Cno=Tc.Cno and Tc.Tno=Teacher.Tno ;";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()){
System.out.println(rs0.getInt("Cno") + "\t" + rs0.getString("Came") +
"\t" + rs0.getFloat("Ccredit") + "\t" + rs0.getInt("Tno") +
"\t" + rs0.getString("Tame") + "\t" );
}
break;
case 6:
System.out.println("谢谢使用，正在退出学生教务管理系统");
t = false;
break;
}
Enter();
}
if (p1!= null) {
p1.close();
}
if (connection != null) {
connection.close();
}
if (rs0 != null) {
rs0.close();
}
} catch (Exception e) {
throw new Exception(e);
}
}
public static void Enter() throws Exception {
System.out.println("请按回车继续");
new BufferedReader(new InputStreamReader(System.in)).readLine();
}
}教师登录教务管理系统：
package sun19bao;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.sql.*;
import java.util.Scanner;
public class Teacher {
public void Mether1() throws Exception {
boolean t=true;
ResultSet rs0=null;
Connection connection=null;
PreparedStatement p1=null;
PreparedStatement p2=null;
Scanner s = new Scanner(System.in);
System.out.println("请输入教师号:");
String user = s.nextLine();
System.out.println("请输入密码:");
String password = s.nextLine();
try {
//1.加载数据库驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//2.通过DriverManage获取连接
String url = "jdbc:mysql://localhost:3306/jiaowu";
connection = DriverManager.getConnection(url, user, password);
while (t) {
System.out.println("----------欢迎使用教师教务系统-------------");
System.out.println("------------1.查询教师表-------------");
System.out.println("------------2.查询个人信息-------------");
System.out.println("------------3.查询班级信息-------------");
System.out.println("------------4.选授课程-------------");
System.out.println("------------5.退出系统-------------");
System.out.println("请输入你的选择:");
int a = s.nextInt();
switch (a) {
case 1:
String sql1 = "select * from Teacher";
p1 = connection.prepareStatement(sql1);
rs0 = p1.executeQuery(sql1);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t" + rs0.getString("Tame") +
"\t" + rs0.getString("Ttitle") + "\t");
}
break;
case 2:
sql1 = "select * from Teacher where Tame=?";
p1 = connection.prepareStatement(sql1);
System.out.println("请输入要查询的教师名");
String name=s.next();
p1.setObject(1,name);
rs0 = p1.executeQuery();
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t" + rs0.getString("Tame") +
"\t" + rs0.getString("Ttitle") + "\t");
}
break;
case 3:
String sql2 = "select * from Class";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Rno") + "\t" + rs0.getString("Rname") +
"\t" + rs0.getInt("Rnum") + "\t" + rs0.getString("Rteacher") + "\t");
}
break;
case 4:
sql2="select * from Tc1";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t"+ rs0.getInt("Cno") +
"\t" + rs0.getString("Tame") + "\t"+ rs0.getString("Ttitle") + "\t"
+ rs0.getString("Tyear") + "\t"+ rs0.getString("Tterm") + "\t"
);
}
String sql="insert into Tc1 (Tno,Cno)values(?,?);";
p2= connection.prepareStatement(sql);
System.out.println("请输入你的教师号：");
String Sno=s.next();
p2.setObject(1,Sno);
System.out.println("请输入你要选择的课程号：");
String Cno=s.next();
p2.setObject(2,Cno);
p2.executeUpdate();
System.out.println("选课成功！");
break;
case 5:
System.out.println("谢谢使用，正在退出教师教务管理系统");
t = false;
break;
}
Enter();
}
if (p1!= null) {
p1.close();
}
if (connection != null) {
connection.close();
}
if (rs0 != null) {
rs0.close();
}
} catch (Exception e) {
throw new Exception(e);
}
}
public static void Enter() throws Exception {
System.out.println("请按回车继续");
new BufferedReader(new InputStreamReader(System.in)).readLine();
}
}管理员登录教务管理系统：
package sun19bao;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.sql.*;
import java.util.Scanner;
public class Manager {
public void Mether2() throws Exception {
boolean t=true;
ResultSet rs0=null;
Connection connection=null;
PreparedStatement p1=null;
PreparedStatement p2=null;
Scanner s = new Scanner(System.in);
System.out.println("请输入管理员号:");
String user = s.nextLine();
System.out.println("请输入密码:");
String password = s.nextLine();
try {
//1.加载数据库驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//2.通过DriverManage获取连接
String url = "jdbc:mysql://localhost:3306/jiaowu";
connection = DriverManager.getConnection(url, user, password);
while (t) {
System.out.println("----------欢迎使用管理员教务系统-------------");
System.out.println("------------1.查询学生表-------------");
System.out.println("------------2.查询教师表-------------");
System.out.println("------------3.查询班级表-------------");
System.out.println("------------4.添加学生信息-------------");
System.out.println("------------5.修改学生信息-------------");
System.out.println("------------6.删除学生信息-------------");
System.out.println("------------7.添加老师信息-------------");
System.out.println("------------8.修改老师信息-------------");
System.out.println("------------9.删除老师信息-------------");
System.out.println("------------10.修改成绩表-------------");
System.out.println("------------11.修改课程表-------------");
System.out.println("------------12.退出系统-------------");
System.out.println("请输入你的选择:");
int a = s.nextInt();
switch (a) {
case 1:
String sql0 = "select*from student";
p1 = connection.prepareStatement(sql0);
rs0 = p1.executeQuery(sql0);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t" + rs0.getString("Sname") +
"\t" + rs0.getInt("Sage") + "\t" + rs0.getString("Smajor") + "\t");
}
break;
case 2:
String sql1 = "select * from Teacher";
p1 = connection.prepareStatement(sql1);
rs0 = p1.executeQuery(sql1);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t" + rs0.getString("Tame") +
"\t" + rs0.getString("Ttitle") + "\t");
}
break;
case 3:
String sql2 = "select * from Class";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Rno") + "\t" + rs0.getString("Rname") +
"\t" + rs0.getInt("Rnum") + "\t" + rs0.getString("Rteacher") + "\t");
}
break;
case 4:
sql2="select * from Student";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t" + rs0.getString("Sname") +
"\t" + rs0.getInt("Sage") + "\t" + rs0.getString("Smajor") + "\t");
}
String sql="insert into Student (Sno,Sname,Sage,Smajor)values(?,?,?,?);";
p2= connection.prepareStatement(sql);
System.out.println("请输入要添加学生的学号：");
String Sno=s.next();
p2.setObject(1,Sno);
System.out.println("请输入要添加学生的姓名：");
String Sname=s.next();
p2.setObject(2,Sname);
System.out.println("请输入要添加学生的年龄：");
String Sage=s.next();
p2.setObject(3,Sage);
System.out.println("请输入要添加学生的专业：");
String Smajor=s.next();
p2.setObject(4,Smajor);
p2.executeUpdate();
System.out.println("学生信息添加成功！");
break;
case 5:
sql2="select * from Student";
p1 = connection.prepareStatement(sql2);
rs0 = p1.executeQuery(sql2);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t" + rs0.getString("Sname") +
"\t" + rs0.getInt("Sage") + "\t" + rs0.getString("Smajor") + "\t");
}
String sql3="update Student set Smajor=? where Sname=?";
p2= connection.prepareStatement(sql3);
System.out.println("请输入要更改的专业的学生姓名：");
String Snam=s.next();
p2.setObject(2,Snam);
System.out.println("请输入要更改的专业：");
String Smajor1=s.next();
p2.setObject(1,Smajor1);
p2.executeUpdate();
System.out.println("学生信息修改成功！");
break;
case 6:
String sql4="delete from Student where Sno=?";
p2= connection.prepareStatement(sql4);
System.out.println("请输入要删除信息的学生学号：");
String Sno1=s.next();
p2.setObject(1,Sno1);
p2.executeUpdate();
System.out.println("学生信息删除成功！");
break;
case 7:
sql1 = "select * from Teacher";
p1 = connection.prepareStatement(sql1);
rs0 = p1.executeQuery(sql1);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t" + rs0.getString("Tame") +
"\t" + rs0.getString("Ttitle") + "\t");
}
sql="insert into Teacher (Tno,Tame,Ttitle)values(?,?,?);";
p2= connection.prepareStatement(sql);
System.out.println("请输入要添加教师号：");
String Tno=s.next();
p2.setObject(1,Tno);
System.out.println("请输入要添加教师姓名：");
String Tame=s.next();
p2.setObject(2,Tame);
System.out.println("请输入要添加教师所教授的课程名：");
String Ttitle=s.next();
p2.setObject(3,Ttitle);
p2.executeUpdate();
System.out.println("教师信息添加成功！");
break;
case 8:
sql1 = "select * from Teacher";
p1 = connection.prepareStatement(sql1);
rs0 = p1.executeQuery(sql1);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t" + rs0.getString("Tame") +
"\t" + rs0.getString("Ttitle") + "\t");
}
sql3="update Teacher set Ttitle=? where Tame=?";
p2= connection.prepareStatement(sql3);
System.out.println("请输入要更改的教授课程的老师姓名：");
String Tnam=s.next();
p2.setObject(2,Tnam);
System.out.println("请输入要更改的课程名：");
String Ttitle1=s.next();
p2.setObject(1,Ttitle1);
p2.executeUpdate();
System.out.println("教师信息修改成功！");
break;
case 9:
sql4="delete from Teacher where Tno=?";
p2= connection.prepareStatement(sql4);
System.out.println("请输入要删除信息的教师号：");
String Tno1=s.next();
p2.setObject(1,Tno1);
p2.executeUpdate();
System.out.println("教师信息删除成功！");
break;
case 10:
sql0 = "select*from Sc";
p1 = connection.prepareStatement(sql0);
rs0 = p1.executeQuery(sql0);
while (rs0.next()) {
System.out.println(rs0.getInt("Sno") + "\t"+ rs0.getInt("Cno") +
"\t" + rs0.getFloat("Grade") + "\t");
}
sql3="update Sc set Grade=? where Sno=?and Cno=?";
p2= connection.prepareStatement(sql3);
System.out.println("请输入要更改的学生学号：");
String Sno2=s.next();
p2.setObject(2,Sno2);
System.out.println("请输入要更改的课程号：");
String Cno1=s.next();
p2.setObject(3,Cno1);
System.out.println("请输入要更改的成绩：");
String grade=s.next();
p2.setObject(1,grade);
p2.executeUpdate();
System.out.println("成绩信息修改成功！");
break;
case 11:
sql0 = "select*from Tc1";
p1 = connection.prepareStatement(sql0);
rs0 = p1.executeQuery(sql0);
while (rs0.next()) {
System.out.println(rs0.getInt("Tno") + "\t"+ rs0.getInt("Cno") +
"\t" + rs0.getString("Tame") + "\t"+ rs0.getString("Ttitle") + "\t"
+ rs0.getString("Tyear") + "\t"+ rs0.getString("Tterm") + "\t"
);
}
sql3="update Tc1 set Cno=? where Tno=?;";
p2= connection.prepareStatement(sql3);
System.out.println("请输入要更改课程的教师号：");
String Cn=s.next();
p2.setObject(2,Cn);
System.out.println("请输入要更改的课程号：");
String Sn=s.next();
p2.setObject(1,Sn);
p2.executeUpdate();
System.out.println("课程信息修改成功！");
break;
case 12:
System.out.println("谢谢使用，正在退出管理员教务管理系统");
t = false;
break;
}
Enter();
}
if (p1!= null) {
p1.close();
}
if (connection != null) {
connection.close();
}
if (rs0 != null) {
rs0.close();
}
} catch (Exception e) {
throw new Exception(e);
}
}
public static void Enter() throws Exception {
System.out.println("请按回车继续");
new BufferedReader(new InputStreamReader(System.in)).readLine();
}
}选择身份主菜单：
package sun19bao;
import java.util.Scanner;
public class Text {
public static void main(String[] args) throws Exception {
boolean m=true;
Scanner sc = new Scanner(System.in);
Student s0 = new Student();
Teacher s1=new Teacher();
Manager s2=new Manager();
while (m) {
System.out.println("------------欢迎使用教务管理系统---------------");
System.out.println("------------1.学生登录-------------");
System.out.println("------------2.教师登录-------------");
System.out.println("------------3.管理员登录-------------");
System.out.println("------------4.退出系统-------------");
System.out.println("请输入你的选择:");
int a = sc.nextInt();
switch (a) {
case 1:
s0.Mether0();
break;
case 2:
s1.Mether1();
break;
case 3:
s2.Mether2();
break;
case 4:
System.out.println("谢谢使用，正在退出教务管理系统");
m=false;
break;
}
}
}
}本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
