diff --git a/dev.sql b/dev.sql
index 9f8da98..d61801a 100644
--- a/dev.sql
+++ b/dev.sql
@@ -34,6 +34,8 @@ INSERT INTO `user` (`u_id`, `u_email`, `u_pwd`, `u_email_status`, `u_avatar`, `u
 VALUES (1, 'a@celess.cn', '25f9e794323b453885f5181f1b624d0b', 1, 'a@celess.cn_2.png', '禾几海不需要自我介绍',
         '2020-07-02 11:30:38', '禾几海', 'admin', 0),
        (2, 'b@celess.cn', '25f9e794323b453885f5181f1b624d0b', 1, NULL, NULL, '2020-05-16 13:21:35', NULL, 'user',
+        0),
+       (3, 'zh56462271@qq.com', '25f9e794323b453885f5181f1b624d0b', 1, NULL, NULL, '2020-05-16 13:21:35', NULL, 'user',
         0);
 
 
diff --git a/src/main/resources/mapper/CommentMapper.xml b/src/main/resources/mapper/CommentMapper.xml
index c4c48e4..2696cca 100644
--- a/src/main/resources/mapper/CommentMapper.xml
+++ b/src/main/resources/mapper/CommentMapper.xml
@@ -84,7 +84,7 @@
     <select id="findAllByPagePath" resultMap="commentViewResultMap" parameterType="string">
         select *
         from commentView
-        <if test="pagePath != null ">
+        <if test="toString() != null ">
             where pagePath = #{pagePath}
         </if>
     </select>
diff --git a/src/test/java/cn/celess/blog/mapper/ArticleTagMapperTest.java b/src/test/java/cn/celess/blog/mapper/ArticleTagMapperTest.java
index 0f2763a..72bb21f 100644
--- a/src/test/java/cn/celess/blog/mapper/ArticleTagMapperTest.java
+++ b/src/test/java/cn/celess/blog/mapper/ArticleTagMapperTest.java
@@ -75,10 +75,8 @@ public class ArticleTagMapperTest extends BaseTest {
     @Test
     public void deleteMultiById() {
         ArticleTag articleTag = new ArticleTag();
-        Article article = new Article();
-        article.setId(-1L);
-        Tag tag = new Tag();
-        tag.setId(1L);
+        Article article = articleMapper.getLastestArticle();
+        Tag tag = tagMapper.getLastestTag();
         articleTag.setArticle(article);
         articleTag.setTag(tag);
 
@@ -89,7 +87,7 @@ public class ArticleTagMapperTest extends BaseTest {
         articleTagMapper.insert(articleTag);
         articleTagMapper.insert(articleTag);
 
-        List<ArticleTag> allByArticleId = articleTagMapper.findAllByArticleId(-1L);
+        List<ArticleTag> allByArticleId = articleTagMapper.findAllByArticleId(article.getId());
         assertTrue(allByArticleId.size() >= 6);
         int lines = articleTagMapper.deleteMultiById(allByArticleId);
         assertTrue(lines >= 6);