修改新的接口

src/com/hellogithub/dao/AdminDao.java

@@ -260,11 +260,16 @@ public class AdminDao {
         Connection connection = null;
         try {
             connection = JdbcUtils.getConnection();
-            String Sql = "select  count(*) from  admin ";
+            String Sql = "select  count(*) as num  from  admin ";
             preparedStatement = connection.prepareStatement(Sql);
             resultSet = preparedStatement.executeQuery();
+            int number = 0;
             // 将db中数据 返回给客户端 查询到数据
-            Integer number = resultSet.getInt(1);
+            while (resultSet.next())
+            {
+                number = resultSet.getInt(1);
+            }
+
             return number;
         } catch (Exception e) {
             e.printStackTrace();

src/com/hellogithub/dao/articleDao.java

@@ -269,8 +269,11 @@ public class articleDao {
             String Sql = "select  count(*) from  article ";
             preparedStatement = connection.prepareStatement(Sql);
             resultSet = preparedStatement.executeQuery();
+            int number = 0;
+            while(resultSet.next()){
+                number = resultSet.getInt(1);
+            }
             // 将db中数据 返回给客户端 查询到数据
-            Integer number = resultSet.getInt(1);
             return number;
         } catch (Exception e) {
             e.printStackTrace();

src/com/hellogithub/dao/categoryDao.java

@@ -104,8 +104,13 @@ public class categoryDao {
             String Sql = "select  count(*) from  category ";
             preparedStatement = connection.prepareStatement(Sql);
             resultSet = preparedStatement.executeQuery();
+            int number = 0;
+            while(resultSet.next())
+            {
+                number = resultSet.getInt(1);
+            }
             // 将db中数据 返回给客户端 查询到数据
-            Integer number = resultSet.getInt(1);
+
             return number;
         } catch (Exception e) {
             e.printStackTrace();

src/com/hellogithub/dao/commentDao.java

@@ -164,8 +164,12 @@ public class commentDao {
             String Sql = "select  count(*) from  comment ";
             preparedStatement = connection.prepareStatement(Sql);
             resultSet = preparedStatement.executeQuery();
+            int number=0;
+            while(resultSet.next())
+            {
+                number = resultSet.getInt(1);
+            }
             // 将db中数据 返回给客户端 查询到数据
-            Integer number = resultSet.getInt(1);
             return number;
         } catch (Exception e) {
             e.printStackTrace();