基础类库--E-commerce

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Serialization;

namespace EC_System.FrameWork.API
{
   public static class SerializeHelper
    {
        public static string Serialize<T>(T instance)
        {
            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
            //Add an empty namespace and empty value
            ns.Add("", "");

            XmlWriterSettings settings = new XmlWriterSettings();
            // Remove the <?xml version="1.0" encoding="utf-8"?>
            settings.OmitXmlDeclaration = true;
            // settings.DoNotEscapeUriAttributes = false;
            settings.Indent = true;
            settings.Encoding = Encoding.UTF8;
            settings.NewLineOnAttributes = true;
            XmlWriter sr = null;
            try
            {
                XmlSerializer xr = new XmlSerializer(typeof(T));
                StringBuilder sb = new StringBuilder();

                sr = XmlWriter.Create(sb, settings);
                xr.Serialize(sr, instance, ns);

                return (sb.ToString());
            }
            catch (Exception ex)
            {
                //Logger.Log(String.Format("Serialization Fail. Error Message : {0} {1}{2}", ex.Message, Environment.NewLine, ex.StackTrace));
                return null;
            }
            finally
            {
                if (sr != null)
                {
                    sr.Close();
                }
            }
        }

        /// <summary>
        /// XMLs to entity.
        /// </summary>
        /// <typeparam name="T">Xml對應的Entity type</typeparam>
        /// <param name="xml">The XML.</param>
        /// <returns>Xml對應的Entity</returns>
        public static T Deserialize<T>(string xml) where T : class
        {
            if (string.IsNullOrEmpty(xml))
            {
                return null;
            }
            else
            {
                XmlSerializer serializer = new XmlSerializer(typeof(T));
                byte[] byteArray = Encoding.UTF8.GetBytes(xml);
                MemoryStream stream = new MemoryStream(byteArray);

                return serializer.Deserialize(stream) as T;
            }
        }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace EC_System.FrameWork
{
    public class ValidateHelper
    {
        private const string REG_DATE = @"^(?ni:(?=\d)((?‘year‘((1[6-9])|([2-9]\d))\d\d)(?‘sep‘[/.-])(?‘month‘0?[1-9]|1[012])\2(?‘day‘((?<!(\2((0?[2469])|11)\2))31)|(?<!\2(0?2)\2)(29|30)|((?<=((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|(16|[2468][048]|[3579][26])00)\2\3\2)29)|((0?[1-9])|(1\d)|(2[0-8])))(?:(?=\x20\d)\x20|$))?((?<time>((0?[1-9]|1[012])(:[0-5]\d){0,2}(\x20[AP]M))|([01]\d|2[0-3])(:[0-5]\d){1,2}))?)$";
        private const string REG_PHONE = @"^((0[0-9]{2,3}){0,1}([0-9]{7,8}))$";
        private const string REG_EMAIL = @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";
        private const string REG_MOBILE = @"(^0{0,1}13[0-9]{9}$)";
        private const string REG_IDCARD = @"^([0-9]{14}|[0-9]{17})(x|[0-9]){1}$";
        private const string REG_TIME = @"^((([0-1]?[0-9])|(2[0-3]))([\:])([0-5][0-9]))$";
        private const string REG_Num = @"^[0-9]*$";
        private const string REG_Decimal = @"^[0-9]+(.[0-9]{1,2})?$";
        private const string REG_Num2 = @"^-?[0-9]\d*$";

        #region 数字有效性验证
        /*
              可以匹配如下格式
            12:30 PM
             2012-02-18
             2012/2/18 02:31:35
             2012-02-18 15:44:45
             2012/2/12 02:31:35 AM

             */
        /// <summary>
        /// 数字有效性验证
        /// </summary>
        /// <param name="date">字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsNum(string num)
        {
            return Regex.IsMatch(num, REG_Num);
        }
        /// <summary>
        /// 正负整数
        /// </summary>
        /// <param name="num"></param>
        /// <returns></returns>
        public static bool IsNum2(string num)
        {
            return Regex.IsMatch(num, REG_Num2);
        }
        public static bool IsDecimal(string num)
        {
            return Regex.IsMatch(num, REG_Decimal);
        }
        #endregion

        #region 日期字符串有效性验证
        /// <summary>
        /// 日期字符串有效性验证
        /// </summary>
        /// <param name="date">日期字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsValidDate(string date)
        {
            return Regex.IsMatch(date, REG_DATE);
        }
        #endregion

        #region Email有效性验证
        /// <summary>
        /// Email有效性验证
        /// </summary>
        /// <param name="email">Email字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsValidEmail(string email)
        {
            return Regex.IsMatch(email, REG_EMAIL);
        }
        #endregion

        #region 电话号码有效性验证
        /// <summary>
        /// 电话号码有效性验证
        /// </summary>
        /// <param name="phone">电话号码字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsVaildPhone(string phone)
        {
            return Regex.IsMatch(phone, REG_PHONE);
        }
        #endregion

        #region 手机号码有效性验证
        /// <summary>
        /// 手机号码有效性验证
        /// </summary>
        /// <param name="mobile">手机号码字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsValidMobile(string mobile)
        {
            return Regex.IsMatch(mobile, REG_MOBILE);
        }
        #endregion

        #region 身份证号有效性验证
        /// <summary>
        /// 身份证号有效性验证
        /// </summary>
        /// <param name="idCard">身份证号字符串</param>
        /// <returns>有效:true,否则:false</returns>
        public static bool IsValidIdCard(string idCard)
        {
            return Regex.IsMatch(idCard, REG_IDCARD);
        }
        #endregion

    }
}