修复查询字段 as '{item}'的问题

hsweb-web-dao-impl-mybatis/src/main/resources/org/hsweb/web/dao/impl/mybatis/mapper/mysql/basic/BasicMapper.xml

@@ -59,7 +59,7 @@
             <when test="includes!=null and includes.size()>0">
                 <foreach item="item" index="index" collection="includes" open="" separator="," close="">
                     <if test="item in $fields">
-                        ${$tableName}.${item} as `{item}`
+                        ${$tableName}.${item} as `${item}`
                     </if>
                 </foreach>
             </when>