android 学习

Dao层

package Dao;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import DBUtil.DBUtil;
import Bean.Diqu;
import Bean.Sheng;
 

public class Dao {
    public List<Diqu> tcha (String m,String n) {
        String sql="select * from diqu where 截止时间 like '%"+m+"%' and 地区 like '%"+n+"%'";
        System.out.println(sql);
        Connection conn = DBUtil.getConn();
        Statement state = null;
        
        ResultSet rs = null;
        List<Diqu> list = new ArrayList<>();
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            Diqu bean = null;
            while (rs.next()) {
                String time = rs.getString("截止时间");
                String diqu = rs.getString("地区");
                String ill = rs.getString("确诊人数");
                String newill=rs.getString("新增确诊");
                String cure = rs.getString("治愈");
                String dead = rs.getString("死亡");
                bean=new Diqu(time,diqu,ill,newill,cure,dead);
                list.add(bean);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(state, conn);
        }
        return list;
        }
    public List<Sheng> Scha(String m) {
        String sql="select * from sheng where 截止时间 like '%"+m+"%'";
        System.out.println(sql);
        Connection conn = DBUtil.getConn();
        Statement state = null;
        
        ResultSet rs = null;
        List<Sheng> list = new ArrayList<>();
        try {
            state = conn.createStatement();
            rs = state.executeQuery(sql);
            while (rs.next()) {
                String time = rs.getString("截止时间");
                String diqu = rs.getString("地区");
                String person = rs.getString("确诊人数");
               Sheng bean=new Sheng(time,diqu,person);
                list.add(bean);
            }
            System.out.println(list);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            DBUtil.close(state, conn);
        }
        return list;
        }
}