diff --git a/src/main/java/com/rymcu/vertical/dto/Author.java b/src/main/java/com/rymcu/vertical/dto/Author.java
index 1f6a567..9b40ee3 100644
--- a/src/main/java/com/rymcu/vertical/dto/Author.java
+++ b/src/main/java/com/rymcu/vertical/dto/Author.java
@@ -8,12 +8,12 @@ import lombok.Data;
 @Data
 public class Author {
 
-    private String idUser;
+    private Integer idUser;
 
     private String userNickname;
 
     private String userAvatarURL;
 
-    private Integer userArticleCount;
+    private String userArticleCount;
 
 }
diff --git a/src/main/java/com/rymcu/vertical/mapper/ArticleMapper.java b/src/main/java/com/rymcu/vertical/mapper/ArticleMapper.java
index 959525f..4135199 100644
--- a/src/main/java/com/rymcu/vertical/mapper/ArticleMapper.java
+++ b/src/main/java/com/rymcu/vertical/mapper/ArticleMapper.java
@@ -3,7 +3,6 @@ package com.rymcu.vertical.mapper;
 import com.rymcu.vertical.core.mapper.Mapper;
 import com.rymcu.vertical.dto.ArticleDTO;
 import com.rymcu.vertical.dto.ArticleTagDTO;
-import com.rymcu.vertical.dto.Author;
 import com.rymcu.vertical.entity.Article;
 import com.rymcu.vertical.entity.ArticleContent;
 import org.apache.ibatis.annotations.Param;
@@ -23,13 +22,6 @@ public interface ArticleMapper extends Mapper<Article> {
      */
     List<ArticleDTO> selectArticles(@Param("searchText") String searchText, @Param("tag") String tag);
 
-    /**
-     * 根据用户 ID 获取作者信息
-     * @param id
-     * @return
-     */
-    Author selectAuthor(@Param("id") Integer id);
-
     /**
      * 根据文章 ID 查询文章
      * @param id
diff --git a/src/main/java/com/rymcu/vertical/mapper/UserMapper.java b/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
index 6096eab..ce95279 100644
--- a/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
+++ b/src/main/java/com/rymcu/vertical/mapper/UserMapper.java
@@ -1,6 +1,7 @@
 package com.rymcu.vertical.mapper;
 
 import com.rymcu.vertical.core.mapper.Mapper;
+import com.rymcu.vertical.dto.Author;
 import com.rymcu.vertical.dto.UserDTO;
 import com.rymcu.vertical.dto.UserInfoDTO;
 import com.rymcu.vertical.entity.User;
@@ -106,4 +107,10 @@ public interface UserMapper extends Mapper<User> {
      * @return
      */
     Integer checkNicknameByIdUser(@Param("idUser") Integer idUser, @Param("nickname") String nickname);
+    /**
+     * 根据用户 ID 获取作者信息
+     * @param id
+     * @return
+     */
+    Author selectAuthor(@Param("id") Integer id);
 }
\ No newline at end of file
diff --git a/src/main/java/com/rymcu/vertical/service/UserService.java b/src/main/java/com/rymcu/vertical/service/UserService.java
index e817abc..f2fb61b 100644
--- a/src/main/java/com/rymcu/vertical/service/UserService.java
+++ b/src/main/java/com/rymcu/vertical/service/UserService.java
@@ -1,6 +1,7 @@
 package com.rymcu.vertical.service;
 
 import com.rymcu.vertical.core.service.Service;
+import com.rymcu.vertical.dto.Author;
 import com.rymcu.vertical.dto.UserDTO;
 import com.rymcu.vertical.dto.UserInfoDTO;
 import com.rymcu.vertical.entity.User;
@@ -100,4 +101,11 @@ public interface UserService extends Service<User> {
      * @return
      */
     Integer findRoleWeightsByUser(Integer idUser);
+
+    /**
+     * 查询作者信息
+     * @param idUser
+     * @return
+     */
+    Author selectAuthor(Integer idUser);
 }
diff --git a/src/main/java/com/rymcu/vertical/service/impl/ArticleServiceImpl.java b/src/main/java/com/rymcu/vertical/service/impl/ArticleServiceImpl.java
index 2a077fc..8a6a80e 100644
--- a/src/main/java/com/rymcu/vertical/service/impl/ArticleServiceImpl.java
+++ b/src/main/java/com/rymcu/vertical/service/impl/ArticleServiceImpl.java
@@ -264,7 +264,7 @@ public class ArticleServiceImpl extends AbstractService<Article> implements Arti
     }
 
     private ArticleDTO genArticle(ArticleDTO article, Integer type) {
-        Author author = articleMapper.selectAuthor(article.getArticleAuthorId());
+        Author author = userService.selectAuthor(article.getArticleAuthorId());
         article.setArticleAuthor(author);
         article.setTimeAgo(Utils.getTimeAgo(article.getUpdatedTime()));
         List<ArticleTagDTO> tags = articleMapper.selectTags(article.getIdArticle());
diff --git a/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java b/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
index 8180eb5..dc8ef02 100644
--- a/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
+++ b/src/main/java/com/rymcu/vertical/service/impl/UserServiceImpl.java
@@ -2,6 +2,7 @@ package com.rymcu.vertical.service.impl;
 
 import com.rymcu.vertical.core.service.AbstractService;
 import com.rymcu.vertical.core.service.redis.RedisService;
+import com.rymcu.vertical.dto.Author;
 import com.rymcu.vertical.dto.TokenUser;
 import com.rymcu.vertical.dto.UserDTO;
 import com.rymcu.vertical.dto.UserInfoDTO;
@@ -207,4 +208,9 @@ public class UserServiceImpl extends AbstractService<User> implements UserServic
     public Integer findRoleWeightsByUser(Integer idUser) {
         return userMapper.selectRoleWeightsByUser(idUser);
     }
+
+    @Override
+    public Author selectAuthor(Integer idUser) {
+        return userMapper.selectAuthor(idUser);
+    }
 }
diff --git a/src/main/java/mapper/ArticleMapper.xml b/src/main/java/mapper/ArticleMapper.xml
index f294d88..407ec77 100644
--- a/src/main/java/mapper/ArticleMapper.xml
+++ b/src/main/java/mapper/ArticleMapper.xml
@@ -38,11 +38,6 @@
         <result column="article_status" property="articleStatus"></result>
         <result column="updated_time" property="updatedTime"></result>
     </resultMap>
-    <resultMap id="AuthorResultMap" type="com.rymcu.vertical.dto.Author">
-        <result column="id" property="idUser"/>
-        <result column="nickname" property="userNickname"/>
-        <result column="avatar_url" property="userAvatarURL"/>
-    </resultMap>
     <resultMap id="ArticleContentResultMap" type="com.rymcu.vertical.entity.ArticleContent">
         <result column="id_article" property="idArticle"/>
         <result column="article_content" property="articleContent"/>
@@ -78,9 +73,6 @@
     <select id="selectArticles" resultMap="DTOResultMap">
         select art.*,su.nickname,su.avatar_url from vertical_article art left join vertical_user su on art.article_author_id = su.id where article_status = '0' order by updated_time desc
     </select>
-    <select id="selectAuthor" resultMap="AuthorResultMap">
-        select * from vertical_user where id = #{id}
-    </select>
     <select id="selectArticleDTOById" resultMap="DTOResultMap">
         select art.*,su.nickname,su.avatar_url from vertical_article art left join vertical_user su on art.article_author_id = su.id where art.id = #{id}
         <if test="type == 1">
diff --git a/src/main/java/mapper/UserMapper.xml b/src/main/java/mapper/UserMapper.xml
index 398908e..f134db4 100644
--- a/src/main/java/mapper/UserMapper.xml
+++ b/src/main/java/mapper/UserMapper.xml
@@ -41,6 +41,11 @@
         <result column="avatar_url" property="avatarUrl"/>
         <result column="signature" property="signature"/>
     </resultMap>
+    <resultMap id="AuthorResultMap" type="com.rymcu.vertical.dto.Author">
+        <result column="id" property="idUser"/>
+        <result column="nickname" property="userNickname"/>
+        <result column="avatar_url" property="userAvatarURL"/>
+    </resultMap>
     <insert id="insertUserRole">
         insert into vertical_user_role (id_user,id_role,created_time) values (#{idUser},#{idRole},sysdate())
     </insert>
@@ -82,5 +87,8 @@
     <select id="checkNicknameByIdUser" resultType="java.lang.Integer">
         select count(*) from vertical_user where nickname = #{nickname} and id != #{idUser}
     </select>
+    <select id="selectAuthor" resultMap="AuthorResultMap">
+        select * from vertical_user where id = #{id}
+    </select>
 
 </mapper>
\ No newline at end of file