无法直接连接到SQL Server数据库。  您需要使用服务作为桥接来获取和保存数据库中的数据。  我会看一下odata或web api这个

There is no way to directly connect to a sql server database.  You need to use a service as a bridge to get and save the data in the database.  I would look at odata, or web api for this