update

mec-auth/mec-auth-server/src/main/resources/config/mybatis/SysUserMapper.xml

@@ -182,7 +182,8 @@
         <result property="portrait" column="avatar_"/>
     </resultMap>
     <select id="getBasic" resultMap="ImUserModel">
-        select * from sys_user where id_ = #{userId} LIMIT 1
+        select CASE WHEN real_name_ IS NULL THEN username_ ELSE real_name_ END username_,id_,avatar_
+        from sys_user where id_ = #{userId} LIMIT 1
     </select>
     
     <select id="queryByStatus" resultMap="SysUser">