diff --git a/src/com/hellogithub/dao/UserDao.java b/src/com/hellogithub/dao/UserDao.java
index af634eb..3ca3d81 100644
--- a/src/com/hellogithub/dao/UserDao.java
+++ b/src/com/hellogithub/dao/UserDao.java
@@ -201,26 +201,22 @@ public class UserDao {
         Connection conn = null;
         PreparedStatement preparedStatement = null;
         ResultSet rs = null;
-        String sql = "SELECT * FROM `user` t1,article t2 WHERE t1.userId = t2.userId AND t1.userId = ?";
+        String sql = "SELECT * FROM `user` ,`article` WHERE `user`.userId = `article`.userId AND `user`.userName = ?";
         int Value = 0;
+        int projectNum = 0;
         try{
             conn = JdbcUtils.getConnection();
             preparedStatement = conn.prepareStatement(sql);
             preparedStatement.setString(1, name);
             rs = preparedStatement.executeQuery();
-            if(rs.next()){
-                while(rs.next()){
-                    int projectNum = rs.getInt(6);
-                    Value = Value+projectNum;
-                    Value++;
-                }
-                return Value;
-            }else{
-                return 0;
+            while(rs.next()){
+                Value++;
             }
+            projectNum = rs.getInt(6);
+            Value = Value + projectNum;
+            return Value;
         }catch(Exception e){
             e.printStackTrace();
-            return 0;
         }finally {
             try{
                 conn.close();
@@ -229,6 +225,6 @@ public class UserDao {
             }catch(Exception e){
                 e.printStackTrace();
             }
-        }
+        }return Value;
     }
 }
diff --git a/src/com/hellogithub/service/UserService.java b/src/com/hellogithub/service/UserService.java
index 9b440dd..8101c2f 100644
--- a/src/com/hellogithub/service/UserService.java
+++ b/src/com/hellogithub/service/UserService.java
@@ -56,5 +56,10 @@ public class UserService {
     public int  dedleteAllLabel(String name){return userDao.dedleteAllLabel(name);}
     public long queryUserCount(){return userDao.queryUserCount();}
 
+    /**
+     * 根据用户名返回贡献值
+     * @param name
+     * @return
+     */
     public int contributionValueReturn(String name){return userDao.contributionValueReturn(name);}
 }