springboot-6-整合jdbc

如果有整合jpa了, 那么在dao中直接, 不需要引入依赖

@Resource
private JdbcTempalte jdbcTempalte;

如果没有的话, 就先在pom.xml中加入依赖

<dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

编写dao声明为repository

package com.iwhere.test.dao;

import javax.annotation.Resource;

import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

import com.iwhere.test.demo.Demo;

/**
 * 使用jdbcTemplate操作数据库
 * @author 231
 * 
 */
@Repository
public class JdbcDao {

    @Resource
    private JdbcTemplate jdbcTemplate;
    
    /**
     * 通过id获取对象
     * @return
     */
    public Demo getById(Integer id) {
        String sql = "select id, name, sex from demo where id = ?";
        BeanPropertyRowMapper<Demo> mapper = new BeanPropertyRowMapper<Demo>(Demo.class);
        return jdbcTemplate.queryForObject(sql, mapper, id);
    }
    
}

之后即可在service和controller层进行调用了

更多操作方式

public List<AreaDto> getAreaDtos() {
        String sql = "select * from t_area ";
        return (List<AreaDto>) template.query(sql, new BeanPropertyRowMapper(AreaDto.class));
    }
 
    public List<AreaDto> getAreaDtos1() {
        String sql = "select * from t_area ";
        return (List<AreaDto>) template.query(sql, new AreaRowMapper());
    }
 
    public Map<String, Object> getBuilds() {
        String sql = "select buildid,buildname from t_building ";
        List<BuildingDto> list = this.template.query(sql, new BeanPropertyRowMapper(BuildingDto.class));
        Map<String, Object> map = new HashMap<String, Object>();
        for (BuildingDto build : list) {
            map.put(String.valueOf(build.getBuildid()), build.getBuildname());
        }
        return map;
    }
 
    public Map<String, Object> getFloors(String build) {
        String sql = "select floorid ,floorname from t_floor where build_id=?";
        List<FloorDto> list = this.template.query(sql, new Object[] { build }, new BeanPropertyRowMapper(FloorDto.class));
        Map<String, Object> map = new LinkedHashMap<String, Object>();
        for (FloorDto floorDto : list) {
            System.out.println(floorDto.getFloorid());
            map.put(String.valueOf(floorDto.getFloorid()), floorDto.getFloorname());
        }
        return map;
    }
 
    public Map<String, Object> getAreas(String build, String floor) {
        String sql = "select areaid ,area_name from t_area where build_id=? and floor_id=?";
        List<AreaDto> list = this.template.query(sql, new Object[] { build, floor }, new BeanPropertyRowMapper(AreaDto.class));
        Map<String, Object> map = new LinkedHashMap<String, Object>();
        for (AreaDto areaDto : list) {
            System.out.println(areaDto.getAreaid());
            map.put(String.valueOf(areaDto.getAreaid()), areaDto.getArea_name());
        }
        return map;
    }
 
    public List<StoreDto> getStoreDtos(int buildid, int floorid, int areaid) {
        String sql = "select * from t_store where build_id=? and floor_id=? and area_id=?";
        return (List<StoreDto>) template.query(sql, new Object[] { buildid, floorid, areaid }, new BeanPropertyRowMapper(
                StoreDto.class));
    }
 
    public List<BuildingDto> getBuildingDto() {
        String sql = "select * from t_building ";
        return (List<BuildingDto>) template.query(sql, new BeanPropertyRowMapper(BuildingDto.class));
    }
 
    public List<FloorDto> getFloorDtos(int buildid) {
        String sql = "select * from t_floor where build_id=? ";
        return (List<FloorDto>) template.query(sql, new Object[] { buildid }, new BeanPropertyRowMapper(FloorDto.class));
    }
 
    public List<AreaDto> getAreaDto(int buildid, int floorid) {
        String sql = "select * from t_area where build_id=? and floor_id=?";
        return (List<AreaDto>) template.query(sql, new Object[] { buildid, floorid }, new BeanPropertyRowMapper(AreaDto.class));
    }
 
    public AreaDto getAreaDto(int id) {
        String sql = "select * from t_area where areaid=?";
        return template.queryForObject(sql, new Object[] { id }, new BeanPropertyRowMapper(AreaDto.class));
    }
 
    public BuildingDto getBuildingDto(int buildId) {
        String sql = "select * from t_building where buildid=?";
        return template.queryForObject(sql, new Object[] { buildId }, new BeanPropertyRowMapper(BuildingDto.class));
    }
 
    public FloorDto getFloorDto(int floorId) {
        String sql = "select * from t_floor where floorid=?";
        return template.queryForObject(sql, new Object[] { floorId }, new BeanPropertyRowMapper(FloorDto.class));
    }
 
    public List<StoreDto> getAllStores() {
        String sql = "select * from t_store ";
        return (List<StoreDto>) template.query(sql, new BeanPropertyRowMapper(StoreDto.class));
    }
 
    public String storeName(int storeId) {
        String sql = "select storename from t_store where id=?";
        return template.queryForObject(sql, new Object[] { storeId }, String.class);
    }
 
    public StoreDto getStoreById(int storeInt) {
        String sql = "select * from t_store where id=?";
        return template.queryForObject(sql, new Object[] { storeInt }, new BeanPropertyRowMapper(StoreDto.class));
    }
 
    public int getCountStore() {
        String sql = "select count(id) from t_store";
        return this.template.queryForInt(sql);
    }
 
    public void saveBuild(BuildingDto buildingDto) {
    }
 
    public void deleteBuildById(int buildid) {
        String sql = "delete from t_store where id=?";
        this.template.update(sql, buildid);
    }
 
    public void updateBuildById(BuildingDto buildingDto) {
 
    }
}
 
class AreaRowMapper implements RowMapper {
    public Object mapRow(ResultSet rs, int index) throws SQLException {
        AreaDto areaDto = new AreaDto();
        areaDto.setAreaid(rs.getInt("areaid"));
        areaDto.setArea_name(rs.getString("area_name"));
        areaDto.setArea_detail(rs.getString("area_detail"));
        areaDto.setBuild_id(rs.getInt("build_id"));
        areaDto.setFloor_id(rs.getInt("floor_id"));
        areaDto.setInsert_time(rs.getTimestamp("insert_time"));
        areaDto.setOperate_id(rs.getInt("operate_id"));
        areaDto.setUpdate_time(rs.getTimestamp("update_time"));
        areaDto.setRegion_name(rs.getString("region_name"));
        areaDto.setSortno(rs.getString("sortno"));
        return areaDto;
    }