C#.net 微信公众账号接口开发_实用技巧_

 weixin _wx = new weixin(); string postStr = ""; if (Request.HttpMethod.ToLower() == "post") { Stream s = System.Web.HttpContext.Current.Request.InputStream; byte[] b = new byte[s.Length]; s.Read(b, 0, (int)s.Length); postStr = Encoding.UTF8.GetString(b); if (!string.IsNullOrEmpty(postStr)) //请求处理 { _wx.Handle(postStr); } } else { _wx.Auth(); } 微信处理类： public class weixin { private string Token = "weixin_token"; //换成自己的token public void Auth() { string echoStr = System.Web.HttpContext.Current.Request.QueryString["echoStr"]; if (CheckSignature()) { if (!string.IsNullOrEmpty(echoStr)) { System.Web.HttpContext.Current.Response.Write(echoStr); System.Web.HttpContext.Current.Response.End(); } } } public void Handle(string postStr) { //封装请求类 XmlDocument doc = new XmlDocument(); doc.LoadXml(postStr); XmlElement rootElement = doc.DocumentElement; XmlNode MsgType = rootElement.SelectSingleNode("MsgType"); RequestXML requestXML = new RequestXML(); requestXML.ToUserName = rootElement.SelectSingleNode("ToUserName").InnerText; requestXML.FromUserName = rootElement.SelectSingleNode("FromUserName").InnerText; requestXML.CreateTime = rootElement.SelectSingleNode("CreateTime").InnerText; requestXML.MsgType = MsgType.InnerText; if (requestXML.MsgType == "text") { requestXML.Content = rootElement.SelectSingleNode("Content").InnerText; } else if (requestXML.MsgType == "location") { requestXML.Location_X = rootElement.SelectSingleNode("Location_X").InnerText; requestXML.Location_Y = rootElement.SelectSingleNode("Location_Y").InnerText; requestXML.Scale = rootElement.SelectSingleNode("Scale").InnerText; requestXML.Label = rootElement.SelectSingleNode("Label").InnerText; } else if (requestXML.MsgType == "image") { requestXML.PicUrl = rootElement.SelectSingleNode("PicUrl").InnerText; } //回复消息 ResponseMsg(requestXML); } /// 
 /// 验证微信签名 /// 
 /// * 将token、timestamp、nonce三个参数进行字典序排序 /// * 将三个参数字符串拼接成一个字符串进行sha1加密 /// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。 ///  private bool CheckSignature() { string signature = System.Web.HttpContext.Current.Request.QueryString["signature"]; string timestamp = System.Web.HttpContext.Current.Request.QueryString["timestamp"]; string nonce = System.Web.HttpContext.Current.Request.QueryString["nonce"]; string[] ArrTmp = { Token, timestamp, nonce }; Array.Sort(ArrTmp); //字典排序 string tmpStr = string.Join("", ArrTmp); tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1"); tmpStr = tmpStr.ToLower(); if (tmpStr == signature) { return true; } else { return false; } } /// 
 /// 回复消息(微信信息返回) /// 
 ///  private void ResponseMsg(RequestXML requestXML) { try { string resxml = ""; mijiya mi = new mijiya(requestXML.Content,requestXML.FromUserName); if (requestXML.MsgType == "text") { //在这里执行一系列操作，从而实现自动回复内容. string _reMsg = mi.GetReMsg(); if (mi.msgType == 1) { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "2"; resxml += mi.GetRePic(requestXML.FromUserName); resxml += "1"; } else { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; } } else if (requestXML.MsgType == "location") { string city = GetMapInfo(requestXML.Location_X, requestXML.Location_Y); if (city == "0") { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; } else { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; } } else if (requestXML.MsgType == "image") { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; //返回10以内条 //int size = 10; //resxml = "" + ConvertDateTimeInt(DateTime.Now) + "" + size + ""; //List list = new List(); ////假如有20条查询的返回结果 //for (int i = 0; i < 20; i++) //{ // list.Add("1"); //} //string[] piclist = new string[] { "/Abstract_Pencil_Scribble_Background_Vector_main.jpg", "/balloon_tree.jpg", "/bloom.jpg", "/colorful_flowers.jpg", "/colorful_summer_flower.jpg", "/fall.jpg", "/fall_tree.jpg", "/growing_flowers.jpg", "/shoes_illustration.jpg", "/splashed_tree.jpg" }; //for (int i = 0; i < size && i < list.Count; i++) //{ // resxml += ""; //} //resxml += "1"; } else if (wx_tmsg.GetMsgCount(requestXML.FromUserName) == 0) { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; } else { resxml = "" + ConvertDateTimeInt(DateTime.Now) + "1"; } //WriteTxt(resxml); System.Web.HttpContext.Current.Response.Write(resxml); WriteToDB(requestXML, resxml,mi.pid); } catch (Exception ex) { //WriteTxt("异常：" + ex.Message + "Struck:" + ex.StackTrace.ToString()); wx_logs.MyInsert("异常：" + ex.Message + "Struck:" + ex.StackTrace.ToString()); } } /// 
 /// unix时间转换为datetime /// 
 ///  ///  private DateTime UnixTimeToTime(string timeStamp) { DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1)); long lTime = long.Parse(timeStamp + "0000000"); TimeSpan toNow = new TimeSpan(lTime); return dtStart.Add(toNow); } /// 
 /// datetime转换为unixtime /// 
 ///  ///  private int ConvertDateTimeInt(System.DateTime time) { System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); return (int)(time - startTime).TotalSeconds; } /// 
 /// 调用百度地图，返回坐标信息 /// 
 /// 经度 /// 纬度 ///  public string GetMapInfo(string x, string y) { try { string res = string.Empty; string parame = string.Empty; string url = "http://maps.googleapis.com/maps/api/geocode/xml"; parame = "latlng=" + x + "," + y + "&language=zh-CN&sensor=false";//此key为个人申请 res = webRequestPost(url, parame); XmlDocument doc = new XmlDocument(); doc.LoadXml(res); XmlElement rootElement = doc.DocumentElement; string Status = rootElement.SelectSingleNode("status").InnerText; if (Sta
                
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