mybatis group多个having条件

mybati多个having条件的写法

prefix:在trim标签内sql语句加上前缀。

suffix:在trim标签内sql语句加上后缀。

suffixOverrides:指定去除多余的后缀内容，如：suffixOverrides=","，去除trim标签内sql语句多余的后缀","。

dao.java List<String> selectByProductIdGroup(CreditLimitLevelConfigQuery query);

dao.xml <select id="selectByProductIdGroup" resultType="java.lang.String">         select product_id,status,valid_day from credit_limit_level_config         group by product_id         <trim prefix="having" suffixOverrides="and">             <if test="productId != null and productId !=''">                 product_id = #{productId} and             </if>             <if test="status != null and status !=''">                 status = #{status} and             </if>             <if test="validDay != null and validDay !=''">                 valid_day = #{validDay} and             </if>         </trim>     </select>