JAVA版学生信息管理系统

Java版学生信息管理系统（数据库存储数据） 包含但不限于 学院、专业、年级、班级、学生信息、课程、老师、成绩 的增删改查功能

package Java版学生信息管理系统;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

//添加学生
public class AddStud {

public void add(Student student) {
	Connection conn = DBConnection.getConnection();
	String sql = "insert into student values(?,?,?,?,?,?,?,?,?,?,?,?,?)";
	PreparedStatement ps;
	try {
		ps = conn.prepareStatement(sql);
		ps.setString(1, student.getXueyuan());
		ps.setString(2, student.getZhuanye());
		ps.setString(3, student.getGrade());
		ps.setString(4, student.getBanji());
		ps.setString(5, student.getName());
		ps.setString(6, student.getSex());
		ps.setString(7, student.getTel());
		ps.setString(8, student.getJiguan());
		ps.setString(9, student.getId());
		ps.setString(10, student.getMath());
		ps.setString(11, student.getEnglish());
		ps.setString(12, student.getC_language());
		ps.setString(13, student.getTeacher());
		ps.execute();
		System.out.println("成功添加一位学生");
		
		
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} finally {
		DBConnection.closeConnection(conn);
	}
}

}

• 连接数据库
  */

package Java版学生信息管理系统;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class DBConnection {

public static Connection getConnection() {
	
	Connection conn = null;
	String url = "jdbc:mysql://localhost:3306/db1?serverTimezone=UTC";
	String UserName = "root";
	String UserPassword = "root";
	
	try {
		Class.forName("com.mysql.cj.jdbc.Driver");
		conn = DriverManager.getConnection(url,UserName,UserPassword);
		System.out.println("数据库连接成功");
	} catch (ClassNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
		return null;
	}catch (SQLException e) {
		e.printStackTrace();
		return null;
	}
	
	return conn;
}


public static void closeConnection(Connection conn) {
	if(conn != null) {
		try {
			conn.close();
			conn = null;	
		}catch(Exception e){
			e.printStackTrace();
		}
		
	}
}

public static void main(String[] args) {
	getConnection();
}

}

package Java版学生信息管理系统;
import java.sql.*;

public class DeleteStud {

public void Dele(String name) {
	Connection conn = DBConnection.getConnection();
	PreparedStatement ps;
	String sql = "DELETE FROM student WHERE name = ?";
	
	try {
		ps = conn.prepareStatement(sql);
		ps.setString(1, name);
		ps.execute();
		System.out.println("该学生信息成功删除");
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}finally {
		DBConnection.closeConnection(conn);
	}
}

}
package Java版学生信息管理系统;

import java.sql.*;

public class ShowStud {

public void Show(String name) {
	
	Student student = new Student();
	Connection conn = DBConnection.getConnection();
	String sql = "SELECT * FROM student where name = ?";
	PreparedStatement ps;
	ResultSet rs;
	
	try {
		ps = conn.prepareStatement(sql);
		ps.setString(1, name);
		rs = ps.executeQuery();
		if(rs.next()) {
			student.setXueyuan(rs.getString("xueyuan"));
			student.setZhuanye(rs.getString("zhuanye"));
			student.setGrade(rs.getString("grade"));
			student.setBanji(rs.getString("banji"));
			student.setName(rs.getString("name"));
			student.setSex(rs.getString("sex"));
			student.setTel(rs.getString("tel"));
			student.setJiguan(rs.getString("jiguan"));
			student.setId(rs.getString("id"));
			student.setMath(rs.getString("math"));
			student.setEnglish(rs.getString("english"));
			student.setC_language(rs.getString("c_language"));
			student.setTeacher(rs.getString("teacher"));
			
			System.out.println("学院："+student.getXueyuan()+
					"\n专业："+student.getZhuanye()+
					"\n年级："+student.getGrade()+
					"\n班级："+student.getBanji()+
					"\n姓名："+student.getName()+
					"\n性别："+student.getSex()+
					"\n联系方式："+student.getTel()+
					"\n籍贯："+student.getJiguan()+
					"\n学号："+student.getId()+
					"\n高数："+student.getMath()+
					"\n大学英语"+student.getEnglish()+
					"\nC语言程序设计"+student.getC_language()+
					"\n导师："+student.getTeacher());
		}else {
			System.out.println("数据错误");
		}
		rs.close();
		ps.close();
		
	} catch (SQLException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}finally {
		DBConnection.closeConnection(conn);
	}

}

}

package Java版学生信息管理系统;

public class Student {

	// TODO Auto-generated method stub
	private String xueyuan;
	private String zhuanye;
	private String grade;
	private String banji;
	private String name;
	private String sex;
	private String tel;
	private String jiguan;
	private String id;
	private String math;
	private String english;
	private String c_language;
	private String teacher;
	
	
	public Student() {
		super();
	}


	public Student(String xueyuan, String zhuanye, String grade, String banji, String name, String sex, String tel,
			String jiguan, String id, String math, String english, String c_language, String teacher) {
		super();
		this.xueyuan = xueyuan;
		this.zhuanye = zhuanye;
		this.grade = grade;
		this.banji = banji;
		this.name = name;
		this.sex = sex;
		this.tel = tel;
		this.jiguan = jiguan;
		this.id = id;
		this.math = math;
		this.english = english;
		this.c_language = c_language;
		this.teacher = teacher;
	}


	public String getXueyuan() {
		return xueyuan;
	}


	public void setXueyuan(String xueyuan) {
		this.xueyuan = xueyuan;
	}


	public String getZhuanye() {
		return zhuanye;
	}


	public void setZhuanye(String zhuanye) {
		this.zhuanye = zhuanye;
	}


	public String getGrade() {
		return grade;
	}


	public void setGrade(String grade) {
		this.grade = grade;
	}


	public String getBanji() {
		return banji;
	}


	public void setBanji(String banji) {
		this.banji = banji;
	}


	public String getName() {
		return name;
	}


	public void setName(String name) {
		this.name = name;
	}


	public String getSex() {
		return sex;
	}


	public void setSex(String sex) {
		this.sex = sex;
	}


	public String getTel() {
		return tel;
	}


	public void setTel(String tel) {
		this.tel = tel;
	}


	public String getJiguan() {
		return jiguan;
	}


	public void setJiguan(String jiguan) {
		this.jiguan = jiguan;
	}


	public String getId() {
		return id;
	}


	public void setId(String id) {
		this.id = id;
	}


	public String getMath() {
		return math;
	}


	public void setMath(String math) {
		this.math = math;
	}


	public String getEnglish() {
		return english;
	}


	public void setEnglish(String english) {
		this.english = english;
	}


	public String getC_language() {
		return c_language;
	}


	public void setC_language(String c_language) {
		this.c_language = c_language;
	}


	public String getTeacher() {
		return teacher;
	}


	public void setTeacher(String teacher) {
		this.teacher = teacher;
	}

}

package Java版学生信息管理系统;

import java.util.*;

public class Test {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	
	Scanner sc = new Scanner(System.in);
	Student student = new Student();
	while(true) {

		System.out.println("请选择你要运行的操作");
		System.out.println("1:添加一个学生信息");
		System.out.println("2:查找一个学生信息");
		System.out.println("3:修改一个学生信息");
		System.out.println("4:删除一个学生信息");
		System.out.println("5:退出系统");
		
		String cz = sc.next();
		if(cz.equals("1")) {
			//添加学生
			AddStud as = new AddStud();
			
			System.out.println("请输入学院");
			student.setXueyuan(sc.next());
			
			System.out.println("请输入专业");
			student.setZhuanye(sc.next());
			
			System.out.println("请输入年级");
			student.setGrade(sc.next());
			
			System.out.println("请输入班级");
			student.setBanji(sc.next());
			
			System.out.println("请输入姓名");
			student.setName(sc.next());
			
			System.out.println("请输入性别");
			student.setSex(sc.next());
			
			System.out.println("请输入联系方式");
			student.setTel(sc.next());
			
			System.out.println("请输入籍贯");
			student.setJiguan(sc.next());
			
			System.out.println("请输入学号");
			student.setId(sc.next());
			
			System.out.println("请输入高数成绩");
			student.setMath(sc.next());
			
			System.out.println("请输入大学英语成绩");
			student.setEnglish(sc.next());
			
			System.out.println("请输入C语言程序设计成绩");
			student.setC_language(sc.next());
			
			System.out.println("请输入导师姓名");
			student.setTeacher(sc.next());
			
			as.add(student);
		}
		
		if(cz.equals("2")) {
			//查找学生
			ShowStud ss = new ShowStud();
			System.out.println("请输入要查询学生的姓名：");
			String xm = sc.next();
			ss.Show(xm);
		}
		
		if(cz.equals("3")) {
			//修改学生信息，待添加
			UpdateStud us = new UpdateStud();
			
			System.out.println("请输入需要更改信息的学生姓名：");
			String name = sc.next();
			
			System.out.println("请选择需要修改的内容的编号");
			System.out.println("1：修改[学院]信息");
			System.out.println("2：修改[专业]信息");
			System.out.println("3：修改[年级]信息");
			System.out.println("4：修改[班级]信息");
			System.out.println("5：修改[姓名]信息");
			System.out.println("6：修改[性别]信息");
			System.out.println("7：修改[联系方式]信息");
			System.out.println("8：修改[籍贯]信息");
			System.out.println("9：修改[学号]信息");
			System.out.println("10：修改[高数]信息");
			System.out.println("11：修改[大学英语]信息");
			System.out.println("12：修改[C语言程序设计]信息");
			System.out.println("13：修改[导师]信息");
			int up = sc.nextInt();
			
			System.out.println("请重新输入该内容");
			String newer = sc.next();
			
			us.Update(name, up, newer);
			
		}
		
		if(cz.equals("4")) {
			//删除学生信息
			DeleteStud ds = new DeleteStud();
			System.out.println("请输入要删除学生的姓名：");
			String name = sc.next();
			ds.Dele(name);
		}
		
		if(cz.equals("5")) {
			//退出系统
			System.out.println("已退出系统");
			System.exit(0);
			
		}
		
	}

}

}

package Java版学生信息管理系统;
import java.sql.*;

public class UpdateStud {
public void Update(String name, int up, String newer) {
Connection conn = DBConnection.getConnection();
PreparedStatement ps;
String sql;

	if(up == 1) {
		sql = "UPDATE student SET xueyuan = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 2) {
		sql = "UPDATE student SET zhuanye = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 3) {
		sql = "UPDATE student SET grade = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 4) {
		sql = "UPDATE student SET banji = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 5) {
		sql = "UPDATE student SET name = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 6) {
		sql = "UPDATE student SET sex = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 7) {
		sql = "UPDATE student SET tel = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 8) {
		sql = "UPDATE student SET jiguan = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 9) {
		sql = "UPDATE student SET id = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 10) {
		sql = "UPDATE student SET math = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 11) {
		sql = "UPDATE student SET english = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 12) {
		sql = "UPDATE student SET c_language = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}
	if(up == 13) {
		sql = "UPDATE student SET teacher = ? WHERE name = ?";
		try {
			ps = conn.prepareStatement(sql);
			ps.setString(1, newer);
			ps.setString(2, name);
			ps.execute();
			System.out.println("修改信息成功");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("修改信息失败");
		}finally {
			DBConnection.closeConnection(conn);
		}
	}	
}

}