mybatis返回值類型總結

//返回Integer
<select id="getSpeedByLinkId" parameterType="java.lang.String" resultType="Integer">
SELECT speed from dws_tfc_state_speed_link_last_rt where link_id = #{linkId}
</select>
//返回Double類型
<select id="getTravelTimeByLinkId" parameterType="java.lang.String" resultType="Double">
SELECT travel_time from dws_tfc_state_speed_link_last_rt where link_id = #{linkId}
</select>
//返回String 類型
<select id="getSpeedByLinkId" parameterType="java.lang.String" resultType="String">
SELECT speed from dws_tfc_state_speed_link_last_rt where link_id = #{linkId}
</select>

記錄筆記創建時間:2019-10-26