【Mybatis】传Map与传String
ShipStatic ship=shipService.getShipInfoBymmsi(mmsi);
public interface ShipStaticMapper extends Mapper<ShipStatic> {
ShipStatic getShipinfoBymmsi(String mmsi);
}
<select id="getShipinfoBymmsi" parameterType="string" resultMap="BaseResultMap">
SELECT
*
FROM
ship_static
<where>
mmsi = #{mmsi}
</where>
</select>
public interface ShipImageMapper extends Mapper<ShipImage> {
List<ShipImage> getShipImageByMmsi(String mmsi);
List<ShipImage> getImagesByMMSI(Map<String,Object> params);
}
两种不同的方式:
1.传Map
1 Map<String,Object> params=new HashMap<String, Object>(); 2 params.put("mmsi",mmsi); 3 List<ShipImage> imageList=shipImageMapper.getImagesByMMSI(params); 4 5 <select id="getImagesByMMSI" parameterType="java.util.Map" resultMap="BaseResultMap"> 6 SELECT a.* from ship_image a 7 <where> 8 <if test="mmsi != null and mmsi!=''"> 9 and a.ship_id = #{mmsi} 10 </if> 11 </where> 12 </select>
2.传String
1 List<ShipImage> images = shipImageMapper.getShipImageBymmsi(mmsi); 2 3 <select id="getShipImageByMmsi" parameterType="string" resultMap="BaseResultMap"> 4 SELECT 5 * 6 FROM 7 ship_image 8 <where> 9 ship_id = #{mmsi} 10 </where> 11 </select>