public class EntityConfigurationException : Exception

    {

        public EntityConfigurationException(string message) : base(message)

        {

        }

    }

    /// <summary>

    /// *****异常

    /// </summary>

    public class  *****Exception : Exception

    {

        /// <summary>

        /// 操作结果

        /// </summary>

        public OPResult Result { get; set; }

        /// <summary>

        /// 构造函数

        /// </summary>

        /// <param name="opr">操作结果</param>

        /// <param name="message">消息内容</param>

        public  *****Exception(OPResult opr, String message)

            : base(message)

        {

            Result = opr;

        }

        /// <summary>

        /// 构造函数

        /// </summary>

        /// <param name="opr">返回代码</param>

        /// <param name="message">错误消息</param>

        /// <param name="e">原始异常</param>

        public  *****Exception(OPResult opr, String message, Exception e)

            : base(message, e)

        {

            Result = opr;

        }

        /// <summary>

        /// 构造函数

        /// </summary>

        /// <param name="message">消息内容</param>

        /// <param name="e">异常栈</param>

        public  *****Exception(String message, Exception e)

            : base(message, e)

        {

            Result = OPResult.ServerError;

        }

        /// <summary>

        /// 构造函数

        /// </summary>

        /// <param name="e">异常堆栈</param>

        public  *****Exception(Exception e)

            : base("Server Operation Failed", e)

        {

            Result = OPResult.ServerError;

        }

    }

    /// <summary>

    /// 操作结果

    /// </summary>

    public class  *****OPResult

    {

        /// <summary>

        /// 操作是否成功

        /// </summary>

        public Boolean OPSucess { get; set; }

        /// <summary>

        /// 结果代码

        /// </summary>

        public OPResult OPCode { get; set; }

        /// <summary>

        /// 操作结果,类型可变，由Type进行判断

        /// </summary>

        public Object ResultContent { get; set; }

        /// <summary>

        /// 返回类型名称

        /// </summary>

        public String Type { get; set; }

        /// <summary>

        /// 返回是否为数组

        /// </summary>

        public Boolean IsArray { get; set; }

    }

    /// <summary>

    /// 操作结果

    /// </summary>

    public enum OPResult : int

    {

        /// <summary>

        /// 成功

        /// </summary>

        Success = 0,

        /// <summary>

        /// 无效参数

        /// </summary>

        InvalidParameters = 1,

        /// <summary>

        /// 无效用户

        /// </summary>

        InvalidUser = 2,

        /// <summary>

        /// 无效Token

        /// </summary>

        InvalidToken = 3,

        /// <summary>

        /// 参数缺失

        /// </summary>

        MissingParameters=4,

        /// <summary>

        /// 服务器端错误

        /// </summary>

        ServerError = 0xFF

    }