修正根据文章id查找username问题

src/com/hellogithub/dao/articleDao.java

@@ -98,6 +98,7 @@ public class articleDao {
 
     public articleEntity selectByArticleId(int id){
         Connection conn = null;
+        Connection conn1 = null;
         PreparedStatement preparedStatement = null;
         PreparedStatement preparedStatement1 = null;
         ResultSet rs = null;
@@ -109,7 +110,7 @@ public class articleDao {
             preparedStatement.setInt(1, id);
             preparedStatement = conn.prepareStatement(sql);
             preparedStatement1.setInt(1, id);
-            preparedStatement1 = conn.prepareStatement(sql1);
+            preparedStatement1 = conn1.prepareStatement(sql1);
             rs = preparedStatement.executeQuery();
             preparedStatement1.executeQuery(sql1);
 
@@ -125,7 +126,7 @@ public class articleDao {
                 entity = new articleEntity(
                         articleid,userid,articlecontent,datetime,isvalid,readcount,articleTitle,articleIco
                 );
-                preparedStatement1.close();
+                JdbcUtils.closeConnection(preparedStatement1, conn1);
                 JdbcUtils.closeConnection(rs, preparedStatement, conn);
             }
         } catch (SQLException e) {