通过配置数据库连接并选择数据库表，数据库表…

代码说明：

通过配置数据库连接并选择数据库表,可自动生成数据库表的实体类,并且实体类中包含记录集合,可在类中对各记录集合进行修改后一次性提交保存,支持事务.-By configuring the database connection and select database tables, database tables can be automatically generated entity class and entity class collection contains records, you can type in the collection of the records submitted by the modified one-time preservation, support for Services.