using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?Models;
using?System.Security.Cryptography;
using?System.Configuration;
using?System.IO;
using?System.Net;
using?System.Security.Cryptography.X509Certificates;

namespace?Common
{
????public?class?PayForWeiXinHelp
????{

????????///?

????????///?調用微信支付接口前處理數據，包括sign驗證等
????????///?

????????///?
????????///?
????????public?string?DoDataForPayWeiXin（PayWeiXin?payForWeiXin）
????????{
????????????#region?處理nonce_str隨機字符串，不長于?32?位（本程序生成長度為16位的）
????????????string?str?=?“0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ“;
????????????payForWeiXin.nonce_str?=?RandomStr（str16）;
????????????#endregion

????????????#region?商戶信息從config文件中讀取
????????????//商戶支付密鑰key
????????????string?key?=?ConfigurationManager.AppSettings[“key“].ToString（）;
????????????//商戶號
????????????payForWeiXin.mch_id?=?ConfigurationManager.AppSettings[“mch_id“].ToString（）;
????????????//商戶?appid?
????????????payForWeiXin.wxappid?=?ConfigurationManager.AppSettings[“wxappid“].ToString（）;
????????????//提供方名稱?
????????????payForWeiXin.nick_name?=?ConfigurationManager.AppSettings[“nick_name“].ToString（）;
????????????payForWeiXin.act_id?=?“act_id“;
????????????//紅包収送者名稱?
????????????payForWeiXin.send_name?=?ConfigurationManager.AppSettings[“send_name“].ToString（）;
????????????//紅包収放總人數
????????????payForWeiXin.total_num?=?int.Parse（ConfigurationManager.AppSettings[“total_num“].ToString（））;
????????????//紅包祝福詫
????????????payForWeiXin.wishing?=?ConfigurationManager.AppSettings[“wishing“].ToString（）;
????????????//活勱名稱?
????????????payForWeiXin.act_name?=?ConfigurationManager.AppSettings[“act_name“].ToString（）;
????????????//備注信息?
????????????payForWeiXin.remark?=?ConfigurationManager.AppSettings[“remark“].ToString（）;
????????????//商戶logo的url?
????????????payForWeiXin.logo_imgurl?=?ConfigurationManager.AppSettings[“logo_imgurl“].ToString（）;
????????????//分享文案?
????????????payForWeiXin.share_content?=?ConfigurationManager.AppSettings[“share_content“].ToString（）;
????????????//分享鏈接
????????????payForWeiXin.share_url?=?ConfigurationManager.AppSettings[“share_url“].ToString（）;
????????????//分享的圖片url?
????????????payForWeiXin.share_imgurl?=?ConfigurationManager.AppSettings[“share_imgurl“].ToString（）;
????????????//調用接口的機器?Ip?地址
????????????payForWeiXin.client_ip?=?ConfigurationManager.AppSettings[“client_ip“].ToString（）;
????????????#endregion

????????????#region?訂單信息
????????????//生成訂單號組成：?mch_id+yyyymmdd+10?位一天內不能重復的數字
????????????//生成10位不重復的數字
????????????string?num=?“0123456789“;
????????????string?randomNum?=?RandomStr（num10）;
????????????payForWeiXin.mch_billno?=?payForWeiXin.mch_billno?+?System.DateTime.Now.ToString（“yyyyMMdd“）?+?randomNum;
????????????#endregion

????????????string?postData?=?@“l>?
?????????????????????????????????