<select id="getEmployeesMapParams" resultType="Employees">
　　select * from EMPLOYEES e
<where>
　　<if test="departmentId!=null and departmentId!=''">
　　　　e.DEPARTMENT_ID=#{departmentId}
　　</if>
　　<if test="employeeIdsArray!=null and employeeIdsArray.length!=0">
　　　　AND e.EMPLOYEE_ID in
　　　　<foreach collection="employeeIdsArray" item="employeeId" index="index" open="(" close=")" separator=",">
　　　　　　#{employeeId}
　　　　</foreach>
　　</if>
</where>
</select>