【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

Map<String,Object> params=new HashMap<String, Object>();
params.put("mmsi",mmsi);
List<ShipImage> imageList=shipImageMapper.getImagesByMMSI(params);

<select id="getImagesByMMSI" parameterType="java.util.Map" resultMap="BaseResultMap">
　　 SELECT a.*  from ship_image a
    <where>
        <if test="mmsi != null and mmsi!=''">
            and a.ship_id = #{mmsi}
        </if>
    </where>
</select>

2.传String

List<ShipImage> images = shipImageMapper.getShipImageBymmsi(mmsi);

<select id="getShipImageByMmsi" parameterType="string" resultMap="BaseResultMap">
    SELECT
    *
    FROM
    ship_image
    <where>
        ship_id = #{mmsi}
    </where>
</select>