过滤条件

suser/src/main/resources/mapper/system/UserMapper.xml

@@ -296,9 +296,7 @@
         select u.userid,u.username,u.loginname,u.examno,u.usersex,u.usertype,u.userstate,u.schoolid
         from t_user u where
         <foreach collection="examnos" item="examno" separator="or">
-            <if test="examno!=null and examno!=''">
-                binary u.examno=#{examno}
-            </if>
+            binary u.examno=#{examno}
         </foreach>
     </select>
     <!--批量更新用户信息-->