jdbc作业2

2.输入准考证号或身份证号 查询学生信息

package com.hanqi.db;

import java.sql.*;
import java.util.Scanner;
public class JdbcHW2 {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根
        Connection con=null;
        
        Scanner sc=new Scanner(System.in);
        System.out.println("请选择您要输入的类型:");
        System.out.println("  "+"a:准考证号");
        System.out.println("  "+"b:身份证号");
        String s=sc.next();
        
        
        try {
            //连接数据库
            Class.forName("oracle.jdbc.driver.OracleDriver");
            String strUrl="jdbc:oracle:thin:@localhost:1521:ORCL";        
            con=DriverManager.getConnection(strUrl,"test","test");
            
            Statement st=con.createStatement();
            
            if(s.equals("b"))
            {
                System.out.println("请输入您的身份证号:");
                String id=sc.next();
                String idcard="select * from EXAMSTUDENT t where idcard="+id;
                ResultSet rs=st.executeQuery(idcard);
                while(rs.next())
                {
                
                    String ty=rs.getString("type");
                    String ic=rs.getString("idcard");
                    String ec=rs.getString("examcard");
                    String sn=rs.getString("studentname");
                    String lt=rs.getString("location");
                    String gr=rs.getString("grade");
                    System.out.println("type="+ty+",idcard="+ic+",examcard="+ec+",姓名:"+sn+",籍贯:"+lt+",分数:"+gr);                    
                    
                }    
                
                
            }else if(s.equals("a"))
            {
                System.out.println("请输入您的准考证号:");
                String id=sc.next();
                String examcard="select * from EXAMSTUDENT t where examcard="+id;
                ResultSet rs=st.executeQuery(examcard);
                while(rs.next())
                {
                
                    String ty=rs.getString("type");
                    String ic=rs.getString("idcard");
                    String ec=rs.getString("examcard");
                    String sn=rs.getString("studentname");
                    String lt=rs.getString("location");
                    String gr=rs.getString("grade");
                    System.out.println("type="+ty+",idcard="+ic+",examcard="+ec+",姓名:"+sn+",籍贯:"+lt+",分数:"+gr);                    
                }
            }else
            {
                System.out.println("您的输入有误,请重新进入程序...");
            }
    
            
            
            
            
            
            
            
            
            
            
            
            
        } catch (Exception e) {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        }
        
        finally
        {
            if(con!=null)
            {
            try {
                con.close();
            } catch (SQLException e) {
                // TODO 自动生成的 catch 块
                e.printStackTrace();
            }
            }
        }
        
        
        
    }

}

运行结果:

posted @ 2016-06-21 09:48  鱼在我这里  阅读(204)  评论(0编辑  收藏  举报