@select 添加判断

添加两个 使用例子, 供参考:
@Select({"<script>",
        "select",
        " seatName,SUM(profit) as profit",
        "from td_seat_single_code_profit",
        "where code = #{queryType,jdbcType=VARCHAR}  ",
        "<![CDATA[ and tradeDate >= #{startDate,jdbcType=INTEGER} and tradeDate <= #{endDate,jdbcType=INTEGER} ]]>",
        "GROUP BY seatName ",
        "<if test='!flag'>ORDER BY  profit </if>  ",
        "<if test='flag'>ORDER BY  profit desc</if>  ",
        "LIMIT #{rankSize,jdbcType=INTEGER}",
        "</script> "})
List<TdSeadeProfit> getSeatProfitListByParam(@Param("rankSize") int rankSize, @Param("startDate") int startDate, @Param("endDate") int endDate, @Param("queryType") String queryType, @Param("flag") boolean flag);

@Select({"<script>",
        "SELECT  seatName,SUM(profit) as profit FROM td_seat_code_chain_profit  where  ",
        "  type = #{queryFlag,jdbcType=INTEGER}",
        " <if test='queryFlag ==1'>and tradingCode =#{queryType,jdbcType=VARCHAR} </if>",
        " <if test='queryFlag ==2'>and industrialChain =#{queryType,jdbcType=VARCHAR} </if>",
        "<![CDATA[ and tradeDate >= #{startDate,jdbcType=INTEGER} and tradeDate <= #{endDate,jdbcType=INTEGER} ]]>",
        "GROUP BY seatName ",
        "<if test='!flag'>ORDER BY  profit </if>  ",
        "<if test='flag'>ORDER BY  profit desc</if>  ",
        "LIMIT #{rankSize,jdbcType=INTEGER}",
        "</script> "})
List<TdSeatCinProfit> getSeatProfitListByParam(@Param("rankSize") int rankSize, @Param("startDate") int startDate, @Param("endDate") int endDate, @Param("queryFlag") int queryFlag, @Param("queryType")String queryType,@Param("flag") boolean flag);

注意大于小于的转义或者使用 <![CDATA[ ]]>包裹表达式