判断

suishenbang-system/src/main/resources/mapper/system/SysUserOrderAuthorMapper.xml

@@ -131,11 +131,13 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             author_id
         FROM
             sys_user_order_author
-        WHERE
-                parent_id in
-     <foreach collection="authorList" item="authId" index="index" open="(" close=")" separator=",">
-        #{authId}
-    </foreach>
+        WHERE 1=1
+        <if test=" authorList != null and authorList.size > 0  ">
+             and    parent_id in
+         <foreach collection="authorList" item="authId" index="index" open="(" close=")" separator=",">
+            #{authId}
+        </foreach>
+        </if>
     </select>
 
     <select id="selectAuthorIdByParentId" parameterType="SysUserOrderAuthor" resultMap="SysUserOrderAuthorResult">