java+sqlserver如何实现学生信息管理系统

小编给大家分享一下java+sqlserver如何实现学生信息管理系统，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

前提：

1.建立了与sqlserver数据库的连接
(JTDS连接sqlserver数据库的包jtds-1.2.7.jar)
2. 了解JDBC执行SQL的语法

一.实现效果

二.实现代码

1.DBUtil.java

说明：直接复制必然出错。

因为要连接自己的数据库，其中部分数据说明：

Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");//本机V8 ip   192.168.223.1  //在数据库中建立的一个登录名 admin //登录名admin 的密码 123123//要连接的数据库 物流寄存 （因为是临时作业就先随便找个数据库放了）

DBUtil.java

import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.text.SimpleDateFormat;import java.util.Date;public class DBUtil{    //连接数据库    private static Connection getSQLConnection(String ip, String user, String pwd, String db)    {        Connection con = null;        try        {            Class.forName("net.sourceforge.jtds.jdbc.Driver");            //con = DriverManager.getConnection("jdbc:jtds:sqlserver://" + ip + ":1433/" + db + ";charset=utf8", user, pwd);            //jdbc:jtds:sqlserver://localhost:1433/dbname            //解决输出中文乱码            con = DriverManager.getConnection("jdbc:jtds:sqlserver://" + ip + ":1433/" + db , user, pwd);        } catch (ClassNotFoundException e)        {            e.printStackTrace();        } catch (SQLException e)        {            e.printStackTrace();        }        return con;    }    //查询    public static String QuerySQL()    {        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1             Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "select * from 学生信息表";            Statement stmt = conn.createStatement();            ResultSet rs = stmt.executeQuery(sql);            //System.out.println(rs);            while (rs.next())            {//学号、姓名、班级、性别、专业、学院                String s1 = rs.getString("学号").trim();                String s2 = rs.getString("姓名").trim();                String s3 = rs.getString("班级").trim();                String s4 = rs.getString("性别").trim();                String s5 = rs.getString("专业").trim();                String s6 = rs.getString("学院").trim();                result += s1 + "  " + s2 + "  " + s3 + "  " + s4+ "  " + s5+" "+s6+"\n";               // System.out.println(s1 + "  -  " + s2);            }            rs.close();            stmt.close();            conn.close();        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    //插入学生信息    public static String insert_student(String sno,String name,String banji,String sex,String shuanye,String xueyuan)    {//学号、姓名、班级、性别、专业、学院        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1            Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "insert into  学生信息表 values ('"+sno+"','"+name+"','"+banji+"','"+sex+"','"+shuanye+"','"+xueyuan+"');";            Statement stmt = conn.createStatement();            stmt.executeUpdate(sql);            stmt.close();            conn.close();            result+="插入成功";        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    //删除学生信息    public static String delete_student(String sno)    {//学号、姓名、班级、性别、专业、学院        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1            Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "delete 学生信息表 where 学号 = " + sno;            Statement stmt = conn.createStatement();            stmt.executeUpdate(sql);            stmt.close();            conn.close();            result+="删除成功";        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    //按学号查询    public static String QuerySQL_sno(String sno)    {        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1  171.120.157.130            Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "select * from 学生信息表 where 学号 = '"+ sno+"';";            Statement stmt = conn.createStatement();            ResultSet rs = stmt.executeQuery(sql);            while (rs.next())            {//学号、姓名、班级、性别、专业、学院                String s1 = rs.getString("学号").trim();                String s2 = rs.getString("姓名").trim();                String s3 = rs.getString("班级").trim();                String s4 = rs.getString("性别").trim();                String s5 = rs.getString("专业").trim();                String s6 = rs.getString("学院").trim();                result += s1 + "  " + s2 + "  " + s3 + "  " + s4+ "  " + s5+" "+s6+"\n";                // System.out.println(s1 + "  -  " + s2);            }            rs.close();            stmt.close();            conn.close();        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    //按性别查询    public static String QuerySQL_sex(String sex)    {        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1  171.120.157.130            Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "select * from 学生信息表 where 性别 = '"+sex+"';";            Statement stmt = conn.createStatement();            ResultSet rs = stmt.executeQuery(sql);            while (rs.next())            {//学号、姓名、班级、性别、专业、学院                String s1 = rs.getString("学号").trim();                String s2 = rs.getString("姓名").trim();                String s3 = rs.getString("班级").trim();                String s4 = rs.getString("性别").trim();                String s5 = rs.getString("专业").trim();                String s6 = rs.getString("学院").trim();                result += s1 + "  " + s2 + "  " + s3 + "  " + s4+ "  " + s5+" "+s6+"\n";                // System.out.println(s1 + "  -  " + s2);            }            rs.close();            stmt.close();            conn.close();        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    //按学院查询    public static String QuerySQL_xueyuan(String xueyuan)    {        String result = "";        try        {  //10.0.2.2 android ip            //本机V8 ip   192.168.223.1  171.120.157.130            Connection conn = getSQLConnection("192.168.223.1", "admin", "123123", "物流寄存");            String sql = "select * from 学生信息表 where 学院 = '"+ xueyuan +"';";            Statement stmt = conn.createStatement();            ResultSet rs = stmt.executeQuery(sql);            //System.out.println(rs);            while (rs.next())            {//学号、姓名、班级、性别、专业、学院                String s1 = rs.getString("学号").trim();                String s2 = rs.getString("姓名").trim();                String s3 = rs.getString("班级").trim();                String s4 = rs.getString("性别").trim();                String s5 = rs.getString("专业").trim();                String s6 = rs.getString("学院").trim();                result += s1 + "  " + s2 + "  " + s3 + "  " + s4+ "  " + s5+" "+s6+"\n";                // System.out.println(s1 + "  -  " + s2);            }            rs.close();            stmt.close();            conn.close();        } catch (SQLException e)        {            e.printStackTrace();            result += "查询数据异常!" + e.getMessage();        }        return result;    }    public static void main(String[] args)    {        QuerySQL();    }}

2.操作程序test.java

说明：只要DBUtil.java无错误，并且可以利用DBUtil.java操作数据库，则这个test.java可以直接复制

import java.util.*;public class test {    public static void main(String[] args){        Scanner in = new Scanner(System.in);        int flag = 0;        String sno = "", name = " ", banji = " ", sex = " ", shuanye = " ", xueyuan = " ";        System.out.println("  学生信息管理程序  ");        System.out.println(" 0.查看控制面板  ");        System.out.println(" 1.查询全体学生信息   ");        System.out.println(" 2.插入学生信息   ");        System.out.println(" 3.删除学生   ");        System.out.println(" 4.修改学生信息   ");        System.out.println(" 5.查询相关信息   ");        System.out.println(" 6.退出   ");        while(true) {            System.out.println(" 输入要继续执行的操作:");            flag = in.nextInt();            in.nextLine();            if(flag == 6) break;            else {                switch (flag) {                    case 0:                        System.out.println(" 0.查看控制面板  ");                        System.out.println(" 1.查询全体学生信息   ");                        System.out.println(" 2.插入学生信息   ");                        System.out.println(" 3.删除学生   ");                        System.out.println(" 4.修改学生信息   ");                        System.out.println(" 5.查询相关信息   ");                        System.out.println(" 6.退出   ");                        break;                    case 1://查询全部                        System.out.println("查询全体学生信息：");                        System.out.print(DBUtil.QuerySQL());                        break;                    case 2://插入信息                        System.out.println("请输入要插入的学生的信息（以空格隔开）：");                        String str = in.nextLine();                        String[] S = str.split(" ");                        sno = S[0];                        name = S[1];                        banji = S[2];                        sex = S[3];                        shuanye = S[4];                        xueyuan = S[5];                        System.out.print(DBUtil.insert_student(sno, name, banji, sex, shuanye, xueyuan));                        break;                    case 3://删除学生信息                        System.out.println("请输入要删除的学生的学号：");                        sno = in.nextLine();                        System.out.print(DBUtil.delete_student(sno));                        break;                    case 4://修改学生信息                        System.out.println("请输入要修改的学生的学号：");                        sno = in.nextLine();                        DBUtil.delete_student(sno);                        System.out.println("请输入要修改的学生的信息以空格隔开(学号不可修改)：");                        String str2 = in.nextLine();                        String[] S2 = str2.split(" ");                        name = S2[0];                        banji = S2[1];                        sex = S2[2];                        shuanye = S2[3];                        xueyuan = S2[4];                        DBUtil.insert_student(sno, name, banji, sex, shuanye, xueyuan);                        System.out.println("修改之后的数据：");                        break;                    case 5://查询相关信息                        System.out.println(" 1.按学院查询   ");                        System.out.println(" 2.按学号查询  ");                        System.out.println(" 3.按性别查询  ");                        int FLG = Integer.parseInt(in.nextLine());                        //in.nextInt();                        switch(FLG){                            case 1 ://按学院查询                                System.out.println("要查询的学院：");                                String temp_xueyuan = in.nextLine();                                System.out.print(DBUtil.QuerySQL_xueyuan(temp_xueyuan));                                break;                            case 2 ://按学号查询                                System.out.println("要查询学生的学号：");                                String temp_sno = in.nextLine();                                System.out.print(DBUtil.QuerySQL_sno(temp_sno));                                break;                            case 3://按性别查询                                System.out.println("要查询的性别：");                                String temp_sex = in.nextLine();                                System.out.print(DBUtil.QuerySQL_sex(temp_sex));                                break;                        }                        break;                }//switch            }//else        }    }}

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