修改sql

src/main/resources/mapper/TaRecommendCustomerMapper.xml

             b.status > 0
             and b.org_id = #{orgId}
             AND IFNULL(b.person_type, '') in ('estate agent', 'customer')
-            AND b.person_id not IN ( SELECT c.person_id FROM ta_recommend_customer c WHERE c.org_id = #{orgId} AND person_id is not null AND person_id ！= ''  )
+            AND b.person_id not IN ( SELECT c.person_id FROM ta_recommend_customer c WHERE c.org_id = #{orgId} AND person_id is not null AND person_id != ''  )
             <if test="name != null and name !=''">
                 and b.nickname like CONCAT('%',#{name}, '%')
             </if>