fix 班级列表sql修改

zhongzheng-system/src/main/resources/mapper/modules/grade/ClassGradeMapper.xml

@@ -273,7 +273,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             ) >0
         </if>
         <if test="businessId != null and businessId !='' ">
-            AND cb.business_id = #{businessId}
+            AND cb.id = #{businessId}
         </if>
         <if test="schoolId != null and schoolId !='' ">
             AND (