diff --git a/src/main/resources/mapper/CommentMapper.xml b/src/main/resources/mapper/CommentMapper.xml
index 2405cd1..c4c48e4 100644
--- a/src/main/resources/mapper/CommentMapper.xml
+++ b/src/main/resources/mapper/CommentMapper.xml
@@ -84,8 +84,7 @@
     <select id="findAllByPagePath" resultMap="commentViewResultMap" parameterType="string">
         select *
         from commentView
-        # 无奈之举
-        <if test="toString() != null ">
+        <if test="pagePath != null ">
             where pagePath = #{pagePath}
         </if>
     </select>