Com.Alipay/Notify.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
using System.Web;
using System.Xml;
using System.IO;
using System.Security;
using System.Security.Cryptography;
using System.Net;

namespace Com.Alipay
{
    public class Notify
    {
        // Fields
        private string _input_charset;
        private string _key;
        private string _partner;
        private string _sign_type;
        private string _transport;
        private string Http_veryfy_url;
        private string Https_veryfy_url;

        // Methods
        public Notify() { }
        private string Get_Http(string strUrl, int timeout)
        {
            try
            {
                HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(strUrl);
                myReq.Timeout = timeout;
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                StreamReader sr = new StreamReader(HttpWResp.GetResponseStream(), Encoding.Default);
                StringBuilder strBuilder = new StringBuilder();
                while (-1 != sr.Peek())
                {
                    strBuilder.Append(sr.ReadLine());
                }
                return strBuilder.ToString();
            }
            catch (Exception exp)
            {
                return ("错误：" + exp.Message);
            }
        }
        private string GetPreSignStr(SortedDictionary<string, string> inputPara)
        {
            Dictionary<string, string> sPara = new Dictionary<string, string>();
            return Core.CreateLinkString(Core.FilterPara(inputPara));
        }
        private string GetResponseMysign(SortedDictionary<string, string> inputPara)
        {
            Dictionary<string, string> sPara = new Dictionary<string, string>();
            return Core.BuildMysign(Core.FilterPara(inputPara), this._key, this._sign_type, this._input_charset);
        }
        private string GetResponseTxt(string notify_id)
        {
            string veryfy_url = (this._transport == "https") ? this.Https_veryfy_url : this.Http_veryfy_url;