using System;

 using System.Collections.Generic;

 using System.Text;

 using System.Text.RegularExpressions;  

 namespace DotNet.Utilities

 {

      /// <summary>

     /// Cookie操作帮助类

     /// </summary>

     public static class HttpCookieHelper

     {

         /// <summary>

         /// 根据字符生成Cookie列表

         /// </summary>

         /// <param name="cookie">Cookie字符串</param>

         /// <returns></returns>

         public static List<CookieItem> GetCookieList(string cookie)

         {

             List<CookieItem> cookielist = new List<CookieItem>();

             foreach (string item in cookie.Split(new string[] { ";", "," }, StringSplitOptions.RemoveEmptyEntries))

             {

                 if (Regex.IsMatch(item, @"([\s\S]*?)=([\s\S]*?)$"))

                 {

                     Match m = Regex.Match(item, @"([\s\S]*?)=([\s\S]*?)$");

                     cookielist.Add(new CookieItem() { Key = m.Groups[].Value, Value = m.Groups[].Value });

                 }

             }

             return cookielist;

         }  

         /// <summary>

         /// 根据Key值得到Cookie值,Key不区分大小写

         /// </summary>

         /// <param name="Key">key</param>

         /// <param name="cookie">字符串Cookie</param>

         /// <returns></returns>

         public static string GetCookieValue(string Key, string cookie)

         {

             foreach (CookieItem item in GetCookieList(cookie))

             {

                 if (item.Key == Key)

                     return item.Value;

             }

             return "";

         }

         /// <summary>

         /// 格式化Cookie为标准格式

         /// </summary>

         /// <param name="key">Key值</param>

         /// <param name="value">Value值</param>

         /// <returns></returns>

         public static string CookieFormat(string key, string value)

         {

             return string.Format("{0}={1};", key, value);

         }

     }  

     /// <summary>

     /// Cookie对象

     /// </summary>

     public class CookieItem

     {

         /// <summary>

         /// 键

         /// </summary>

         public string Key { get; set; }

         /// <summary>

         /// 值

         /// </summary>

         public string Value { get; set; }

     }

 }