获取微信签名,并保存在xml文件中

using System;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Configuration;
using Senparc.Weixin.MP.AdvancedAPIs;
using Senparc.Weixin.MP.Helpers;
using System.Xml;
using Newtonsoft.Json.Linq;
using BoLeBang.Phone.User;
using System.IO;

namespace BoLeBang.Phone.Shared
{
    public partial class Dock : System.Web.UI.MasterPage
    {
        public string sinature,nonceStr,timeStamp;

        public string appID = ConfigurationManager.AppSettings["appID"];

        public string apprecset = ConfigurationManager.AppSettings["apprecset"];

        //设置xml文件保存路径
        string path = HttpContext.Current.Server.MapPath("~/phone/jssdk.xml");

        protected void Page_Load(object sender, EventArgs e)
        {
            //构造url地址，注意是包含域名的
            C: string url = "http://ceshi.bng.org" + Request.RawUrl;            
            if (File.Exists(path))
            {
                //找到该xml文件
                XmlDocument xml = new XmlDocument();
                xml.Load(path);
                //获取xml文件节点的文本
                string acces = xml.GetElementsByTagName("access_token")[0].InnerText;
                string time = xml.GetElementsByTagName("time")[0].InnerText;
                //2小时过期时间,获取时间间隔
                DateTime dt = DateTime.Now;
                DateTime dt2 = Convert.ToDateTime(time);
                TimeSpan span = dt2 - dt;
                App_Code.Log.WriteLog(span.Hours.ToString());
                if (span.Hours < 2)
                {
                    //利用xml中的jsapi_ticket,来获取签名 ,利用的盛派sdk
                    string jssdkticket = xml.GetElementsByTagName("jssdkTicket")[0].InnerText;
                    nonceStr = JSSDKHelper.GetNoncestr();
                    timeStamp = JSSDKHelper.GetTimestamp();
                    sinature = JSSDKHelper.GetSignature(jssdkticket, nonceStr, timeStamp, url);
                }//低于两个小时
                else
                {
                    //这个应该是修改xml文件,我利用的是删除后重现建立
                    App_Code.Log.WriteLog("删除xml");
                    File.Delete(path);
                    //重新判断
                    goto C;
                }
            }//如果存在xml文件
            else
            {
                #region 获取access_token
                CheckLogin login = new CheckLogin();
                string url11 = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appID + "&secret=" + apprecset;
                JObject jj = login.GetMsg(url11, false);
                string accs = jj["access_token"].ToString();
                #endregion
                #region //获取jsticket
                string hh = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + accs + "&type=jsapi";
                JObject jo = login.GetMsg(hh, false);
                string ticket = jo["ticket"].ToString();
                #endregion
                CreateXML(accs, ticket);
                JsSdkUiPackage jssdkuipackage = JSSDKHelper.GetJsSdkUiPackage(appID, apprecset, url);
                nonceStr = jssdkuipackage.NonceStr;
                timeStamp = jssdkuipackage.Timestamp;
                sinature = jssdkuipackage.Signature;
            }        
            
        }


        /// <summary>
        ///把access和jssdkticket存在xml文件中
        /// </summary>
        /// <param name="access_token"></param>
        /// <param name="jssdkTicket"></param>
        void CreateXML(string access_token,string jssdkTicket)
        {
            if (!File.Exists(path)) //如果日志目录不存在就创建
            {
                XmlDocument xd = new XmlDocument();//表示XML文档
                XmlDeclaration xde;//表示 XML 声明节点：<?xml version='1.0'...?>
                xde = xd.CreateXmlDeclaration("1.0", "GBK", null);//参数的第二项为编码方式
                                                                  //standalone定义了是否可以在不读取任何其它文件的情况下处理该文档,默认为no
                xd.AppendChild(xde);//<?xml version="1.0" encoding="UTF-8" standalone="yes"?>生成结束
                XmlElement xe = xd.CreateElement("jssdk");//jssdk
                xd.AppendChild(xe);//Root根元素创建完成
                XmlNode jssdk = xd.SelectSingleNode("jssdk");//查找<jssdk>
                XmlElement xe1 = xd.CreateElement("access_token");//在<jssdk>之下创建元素<access_token>
                XmlElement xe2 = xd.CreateElement("jssdkTicket");
                XmlElement time = xd.CreateElement("time");
                xe1.SetAttribute("id", "acces");//指定属性的属性值
                xe1.InnerText = access_token;//指定属性文本节点
                xe2.SetAttribute("id", "jssdkticket");
                xe2.SetAttribute("value", jssdkTicket);
                xe2.InnerText = jssdkTicket;
                time.SetAttribute("id", "time");
                time.InnerText=DateTime.Now.ToString();
                //time.InnerText = ;
                jssdk.AppendChild(xe1);//
                jssdk.AppendChild(xe2);//
                jssdk.AppendChild(time);//
                xd.Save(Server.MapPath("jssdk.xml"));
            }        
        }
    }
}