根据日期获取某一时间段内的数据

 1 <select id="findTaxDetails" resultType="com.example.pojo.TaxDetails">
 2        select td_tax_date, td_tax_payable, td_detail from tax_details
 3        inner join contractor 
 4        on contractor.ct_id = tax_details.ct_id
 5        where contractor.mobile = #{mobile}
 6        <if test="startDate != null and startDate != ‘‘">    //关键位置
 7        and td_tax_date <![CDATA[>=]]> #{startDate}
 8        </if>
 9        <if test="endDate != null and endDate != ‘‘">
10        and td_tax_date <![CDATA[<=]]> #{endDate}
11        </if>
12     </select>    

 1     /**
 2      * 收入查看，根据公司名称或者月份匹配
 3      * @param startDate  查询的开始时间
 4      * @param endDate    查询的结束时间 
 5      * @return
 6      */
 7     List<IncomeDetails> findIncomeDetails(@Param("startDate")String startDate, @Param("endDate")String endDate,  @Param("mobile")String mobile, @Param("customerId")Integer customerId);