public class BaseController : Controller    {        /// 
        /// 用户中心Dbhelper         /// 
        public IDbHelper DbHelperUserCenter = GetDbConnection(BaseSystemInfo.UserCenterDbType, BaseSystemInfo.UserCenterDbConnection, ConfigHelper.GetConfigBool("BusinessDbEncrypt"));        /// 
        /// 业务库Dbhelper         /// 
        public IDbHelper DbHelperBusiness = GetDbConnection(BaseSystemInfo.BusinessDbType, BaseSystemInfo.BusinessDbConnection, ConfigHelper.GetConfigBool("UserCenterDbEncrypt"));        /// 
        /// 获得DbHelper        /// 
        /// 数据库类别        /// 连接字符串        /// 是否加密        /// 
     
      IDbHelper
             private static IDbHelper GetDbConnection(CurrentDbType currentDbType, string dbConnection, bool dbEncrypt = false)        {            if (dbEncrypt)            {                dbConnection= SecretUtil.Decrypt(dbConnection);            }            return DbHelperFactory.GetHelper(currentDbType, dbConnection);        }..........}

 

这里是mvc中基类的写法，其中提供了数据库使用加密方式后的解密方法。