diff --git a/src/com/hellogithub/dao/articleDao.java b/src/com/hellogithub/dao/articleDao.java
index 25302c2..8f7e072 100644
--- a/src/com/hellogithub/dao/articleDao.java
+++ b/src/com/hellogithub/dao/articleDao.java
@@ -171,4 +171,39 @@ public class articleDao {
         }
         return bool;
     }
+
+    public List<articleEntity> SelectByUserid(int userId){
+        Connection conn = null;
+        PreparedStatement preparedStatement = null;
+        ResultSet rs = null;
+        String sql = "SELECT * FROM `article` where userId = ? AND isValid = 1;";
+        ArrayList<com.hellogithub.entity.articleEntity> articleEntities = new ArrayList<articleEntity>();
+        try {
+            conn = JdbcUtils.getConnection();
+            preparedStatement = conn.prepareStatement(sql);
+            preparedStatement.setInt(1, userId);
+            rs = preparedStatement.executeQuery();
+            while (rs.next()) {
+                int articleid = rs.getInt(1);
+                int userid = rs.getInt(2);
+                String articlecontent = rs.getString(3);
+                String datetime = rs.getString(4);
+                int isvalid = rs.getInt(5);
+                int readcount = rs.getInt(6);
+                String articleTitle = rs.getString(7);
+                String articleIco = rs.getString(8);
+                articleEntity entity = new articleEntity(articleid, userid, articlecontent, datetime, isvalid, readcount,articleTitle,articleIco);
+                articleEntities.add(entity);
+            }
+            return articleEntities;
+        }catch(Exception e){
+            e.printStackTrace();
+        }finally{
+            try{
+                JdbcUtils.closeConnection(rs,preparedStatement, conn);
+            }catch(Exception e) {
+                e.printStackTrace();
+            }
+        }return articleEntities;
+    }
 }
\ No newline at end of file
diff --git a/src/com/hellogithub/service/articleService.java b/src/com/hellogithub/service/articleService.java
index 2acd374..5f98f1b 100644
--- a/src/com/hellogithub/service/articleService.java
+++ b/src/com/hellogithub/service/articleService.java
@@ -39,36 +39,6 @@ public class articleService {
         return JSONObject.toJSONString(dataMap1);
     }
 
-    public String ArticleSortBylast(int userid){
-        List<articleEntity> articleEntityList =articleDao.ArticleSortBylast();
-        List<articleEntity> articleEntityList1=new ArrayList<>();
-        Map<String,Object> dataMap;
-        Map<String,Map<String,Object>> dataMap1  = new HashMap<>();
-        for(int i=0;i<articleEntityList.size();i++)
-        {
-            dataMap = new HashMap<>();
-            articleEntity articleEntity = articleEntityList.get(i);
-            int id = articleEntity.getUserId();
-            int a = 0;
-            if(id == userid){
-                String username = userDao.selectNameById(id);
-                dataMap.put("ArticleContent",articleEntity.getArticleContent());
-                dataMap.put("ArticleId",articleEntity.getArticleId());
-                dataMap.put("ArticleTitle",articleEntity.getArticleTitle());
-                dataMap.put("IsValid",articleEntity.getIsValid());
-                dataMap.put("ReadCount",articleEntity.getReadCount());
-                dataMap.put("username",username);
-                dataMap.put("publishtime",articleEntity.getPublishTime());
-                dataMap.put("articleico",articleEntity.getArticleIco());
-                dataMap1.put(a+"", dataMap);
-                articleEntityList1.add(articleEntity);
-                a++;
-            }else{
-                continue;
-            }
-        }
-        return JSONObject.toJSONString(dataMap1);
-    }
 
     public String ArticleSortByhot(){
 
@@ -117,4 +87,28 @@ public class articleService {
         return bool;
     }
 
+
+    public String SelectByUserid(int userId){
+        List<articleEntity> articleEntityList =articleDao.SelectByUserid(userId);
+        List<articleEntity> articleEntityList1=new ArrayList<>();
+        Map<String,Object> dataMap;
+        Map<String,Map<String,Object>> dataMap1  = new HashMap<>();
+        for(int i=0;i<articleEntityList.size();i++)
+        {
+            dataMap = new HashMap<>();
+            articleEntity articleEntity = articleEntityList.get(i);
+            int id = articleEntity.getUserId();
+                String username = userDao.selectNameById(id);
+                dataMap.put("ArticleContent",articleEntity.getArticleContent());
+                dataMap.put("ArticleId",articleEntity.getArticleId());
+                dataMap.put("ArticleTitle",articleEntity.getArticleTitle());
+                dataMap.put("IsValid",articleEntity.getIsValid());
+                dataMap.put("ReadCount",articleEntity.getReadCount());
+                dataMap.put("username",username);
+                dataMap.put("publishtime",articleEntity.getPublishTime());
+                dataMap.put("articleico",articleEntity.getArticleIco());
+                dataMap1.put(i+"", dataMap);
+                articleEntityList1.add(articleEntity);
+            }return JSONObject.toJSONString(dataMap1);
+        }
 }
\ No newline at end of file
diff --git a/src/com/hellogithub/servlet/userDetailServlet.java b/src/com/hellogithub/servlet/userDetailServlet.java
index 0101b8d..06c1689 100644
--- a/src/com/hellogithub/servlet/userDetailServlet.java
+++ b/src/com/hellogithub/servlet/userDetailServlet.java
@@ -62,7 +62,7 @@ public class userDetailServlet extends HttpServlet {
             dataMap.put("comment",commentService.selectByUserId(id));
             dataMap.put("project",projectService.retProjectByUserId(id));
             dataMap.put("like",projectService.retProBySupport(id));
-            dataMap.put("article",articleService.ArticleSortBylast(id));
+            dataMap.put("article",articleService.SelectByUserid(id));
             jsonString = JSONObject.toJSONString(dataMap);
             writer.println(jsonString);
             writer.close();