将resultSet中的记录转换为学生对象

public class Student {
//学号、姓名、班级、性别、专业、学院
  //类中的属性一定要跟数据库中的一摸一样 包括名称,数据类型
    private String 学号;
    private String 姓名;
    private String 班级;
    private String 性别;
    private String 专业;
    private String 学院;
    public String getsno() {
        return 学号;
    }
    public void setsno(String sno) {
        this.学号 = sno;
    }
    public String getsex() {
        return 性别;
    }
    public void setsex(String sex) {
        this.性别 = sex;
    }
    public String getName() {
        return 姓名;
    }
    public void setName(String name) {
        this.姓名 = name;
    }
}

import java.lang.reflect.Field;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.Date;

public class DBUtil
{
    //连接数据库
    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;
    }
    
    /*
     * 将rs结果转换成对象列表
     */
    public static List populate(ResultSet rs , Class classTemp) throws SQLException, InstantiationException, IllegalAccessException{
        //结果集的元素对象
        ResultSetMetaData rsmd = rs.getMetaData();
        //获取结果集的元素个数
        int colCount = rsmd.getColumnCount();
        //返回结果的列表集合
        List list = new ArrayList();
        //业务对象的属性数组
        Field[] fields = classTemp.getDeclaredFields();
        while(rs.next()){//对每一条记录进行操作
            Object obj = classTemp.newInstance();//构造业务对象实体
            //将每一个字段取出进行赋值
            for(int i = 1;i<=colCount;i++){
                Object value = rs.getObject(i);//每一格的值
                //System.out.println(value);
                //寻找该列对应的对象属性
                for(int j=0;j<fields.length;j++){
                    Field f = fields[j];//Student类中属性名
                    //如果匹配进行赋值
                   // System.out.println(f.getName());
                    if(f.getName().equalsIgnoreCase(rsmd.getColumnName(i))){//当类中的属性名和数据库中的列名一致时对该列赋值
                        boolean flag = f.isAccessible();
                        f.setAccessible(true);
                        f.set(obj, value);
                        f.setAccessible(flag);
                    }
                }
            }
            list.add(obj);
        }
//以map形式储存结果集
//        while(rs.next()){
//            Map rowData = new HashMap();
//            for (int i = 1; i <= colCount; i++) {
//                rowData.put(rsmd.getColumnName(i), rs.getObject(i));
//            }
//            list.add(rowData);
//        }
        return list;
    }
}

import java.sql.*;
import java.util.List;

public class result {

    public static void main(String[] args) throws InstantiationException, IllegalAccessException, IllegalArgumentException, ClassNotFoundException {
        Connection conn = DBUtil.getSQLConnection("192.168.223.1", "admin", "123123", "TEST");//连接数据库 以个人情况而定
        ResultSet rs = null;
        PreparedStatement psmt = null;

        try {
            psmt = conn.prepareStatement("select * from 学生信息表");
            rs = psmt.executeQuery();
            List list = DBUtil.populate(rs, Student.class);
            for (int i = 0; i < list.size(); i++) {
                Student per = (Student) list.get(i);

                System.out.println("student:sno = " + per.getsno() + " name = " + per.getName() + " sex = " + per.getsex());
                //System.out.println(list.get(i));//map结果集
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}