开发微信公众平台帮助代码C#.docx

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Xml;using System.Web.Security;using System.Net;using System.IO;using System.Text;using System.Web.Script.Serialization;using Xingpingsm.Models;using System.Security.Cryptography;/ / 微信公众平台服务类/ public static class WeiXinHelper #region 变量 /微信公共平台帮助文档网址：/wiki/index.php private static string Token = admin;/根据在微信公共平台申请开发模式时填写的值 private static string AppID = 申请成功获取的id, AppSecret = 申请成功获取的密码;/开发者ID和密码（申请开发者成功后获得） private static readonly string XmlFile = HttpRuntime.AppDomainAppPath + App_Dataweixin-0.txt; /回复xml格式信息（微信只接收xml文件） private static string ResXml = 0 1 2 text 3 0 ; /自定义菜单最多包括3个一级菜单，每个一级菜单最多包含5个二级菜单。 /一级菜单最多4个汉字，二级菜单最多7个汉字，多出来的部分将会以“.”代替。 /请注意，创建自定义菜单后，由于微信客户端缓存，需要24小时微信客户端才会展现出来。建议测试时可以尝试取消关注公众账号后再次关注，则可以看到创建后的效果。 /目前自定义菜单接口可实现两种类型按钮，如下： /click： /用户点击click类型按钮后，微信服务器会通过消息接口推送消息类型为event的结构给开发者（参考消息接口指南）， /并且带上按钮中开发者填写的key值，开发者可以通过自定义的key值与用户进行交互； /view： /用户点击view类型按钮后，微信客户端将会打开开发者在按钮中填写的url值（即网页链接），达到打开网页的目的， /建议与网页授权获取用户基本信息接口结合，获得用户的登入个人信息。 public static string CreateMenuUrl = /cgi-bin/menu/create?access_token=0;/创建自定义菜单链接 public static string DeleteMenuUrl = /cgi-bin/menu/delete?access_token=0;/删除自定义菜单链接 public static string GetMenuUrl = /cgi-bin/menu/get?access_token=0;/获取自定义菜单链接 public static string CustomMsgUrl = /cgi-bin/message/custom/send?access_token=0;/发送客服信息 #endregion #region 首次开发者验证 public static void Auth() string echoStr = System.Web.HttpContext.Current.Request.QueryStringechoStr; if (CheckSignature() if (!string.IsNullOrEmpty(echoStr) System.Web.HttpContext.Current.Response.Write(echoStr); System.Web.HttpContext.Current.Response.End(); / / 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 static bool CheckSignature() string signature = System.Web.HttpContext.Current.Request.QueryStringsignature; string timestamp = System.Web.HttpContext.Current.Request.QueryStringtimestamp; string nonce = System.Web.HttpContext.Current.Request.QueryStringnonce; 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; #region 检测Signature(验证开发人时用) /private bool checkSignature() / / string signature = HttpContext.Current.Requestsignature; / string timestamp = HttpContext.Current.Requesttimestamp; / string nonce = HttpContext.Current.Requestnonce; / List tmpArr = new List(); / tmpArr.Add(Token); / tmpArr.Add(timestamp); / tmpArr.Add(nonce); / tmpArr.Sort(); / string a = string.Join(, tmpArr); / SHA1 hash = SHA1CryptoServiceProvider.Create(); / byte plainTextBytes = Encoding.ASCII.GetBytes(a); / byte hashBytes = hash.ComputeHash(plainTextBytes); / string localChecksum = BitConverter.ToString(hashBytes).Replace(-, ).ToLowerInvariant(); / if (signature = localChecksum) / / return true; / / else / / return false; / / #endregion #endregion #region 接收消息(微信平台post数据) / / 微信平台post数据进行解析并封装 / / xml字符串 public static void Handle(string postStr) try LogHelper.WriteLog(string.Format(XmlFile, DateTime.Now.ToString(yyyy-MM-dd), postStr); /封装请求类 XmlDocument requestXml = new XmlDocument(); requestXml.LoadXml(postStr); XmlNode rootNode = requestXml.SelectSingleNode(xml);/获取根节点 XmlNode FromUserNameNode = rootNode.SelectSingleNode(FromUserName); XmlNode ToUserNameNode = rootNode.SelectSingleNode(ToUserName); XmlNode ContentNode = rootNode.SelectSingleNode(Content); XmlNode MsgIdNode = rootNode.SelectSingleNode(MsgId); XmlNode MsgTypeNode = rootNode.SelectSingleNode(MsgType); RequestXML requestXML = new RequestXML(); requestXML.ToUserName = ToUserNameNode = null ? : ToUserNameNode.InnerText; requestXML.FromUserName = FromUserNameNode = null ? : FromUserNameNode.InnerText; requestXML.MsgId = MsgIdNode = null ? : MsgIdNode.InnerText; requestXML.MsgType = MsgTypeNode = null ? : MsgTypeNode.InnerText; if (requestXML.MsgType = text)/用户向开发者发送普通文本 requestXML.Content = rootNode.SelectSingleNode(Content).InnerText; else if (requestXML.MsgType = location)/用户向开发者发送地理位置消息 requestXML.Location_X = rootNode.SelectSingleNode(Location_X).InnerText; requestXML.Location_Y = rootNode.SelectSingleNode(Location_Y).InnerText; requestXML.Scale = rootNode.SelectSingleNode(Scale).InnerText; requestXML.Label = rootNode.SelectSingleNode(Label).InnerText; else if (requestXML.MsgType = image)/用户向开发者发送图片消息 requestXML.PicUrl = rootNode.SelectSingleNode(PicUrl).InnerText; else if (requestXML.MsgType = event)/用户点击了自定义菜单事件推送 requestXML.Event = rootNode.SelectSingleNode(Event).InnerText; requestXML.EventKey = rootNode.SelectSingleNode(EventKey).InnerText; /回复消息 ResponseMsg(requestXML); catch (Exception ex) LogHelper.SafeLogException(ex); #endregion #region 回复消息(微信信息返回) / / 回复消息(微信信息返回) / / private static void ResponseMsg(RequestXML requestXML) string content = string.Empty; if (requestXML.MsgType.Equals(MsgTypeEnum.EVENT.ToString().ToLower()/回复事件托送 if (requestXML.Event = CLICK)/用户点击了自定义菜单 if (requestXML.EventKey = test) content = 点击了test按钮1; if (requestXML.EventKey = moman) content = 点击了moman按钮1; if (requestXML.MsgType.Equals(MsgTypeEnum.TEXT.ToString().ToLower()/回复用户文本输入 if (requestXML.Content = 1) content = 乐摩网址：http:/lemo.me; else if (requestXML.Content = 2) content = 当普通n微信用户向公众账号发n消息时，微信服务器将POSTn消息的XML数据包到开发t者填写的URLn上。各消息类型的推送XML数据包结构如下。; else content = 用户输入 + requestXML.Content; HttpContext.Current.Response.ContentType = text/xml; HttpContext.Current.Response.Write(string.Format(ResXml, requestXML.FromUserName, requestXML.ToUserName, ConvertDateTimeInt(DateTime.Now), content); HttpContext.Current.ApplicationInstance.CompleteRequest(); #endregion #region unix时间转换为datetime / / unix时间转换为datetime / / string / DateTime private static 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); #endregion #region datetime转换为unixtime / / datetime转换为unixtime / / DateTime / int private static int ConvertDateTimeInt(System.DateTime time) System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1); return (int)(time - startTime).TotalSeconds; #endregion #region 调用百度地图，返回坐标信息 / / 调用百度地图，返回坐标信息 / / 经度 / 纬度 / public static string GetMapInfo(string x, string y) try string res = string.Empty; string parame = string.Empty; string url = /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 (Status = OK) /仅获取城市 XmlNodeList xmlResults = rootElement.SelectSingleNode(/GeocodeResponse).ChildNodes; for (int i = 0; i xmlResults.Count; i+) XmlNode childNode = xmlResultsi; if (childNode.Name = status) continue; string city = 0; for (int w = 0; w childNode.ChildNodes.Count; w+) for (int q = 0; q 0) jsonStr = jsonStr.Substring(0, jsonStr.LastIndexOf(,); jsonStr = jsonStr.Replace(, /); string url = string.Format(CreateMenuUrl, weixin_token); return HttpPost(url, jsonStr); /returnData 返回的是 errcode:0,errmsg:ok 此时，你取消服务号关注，在添加关注，菜单就生成了 #endregion #region 清空自定义菜单 public static string DeleteMenu(string token) return HttpPost(string.Format(DeleteMenuUrl, token); #endregion #region 查询自定义菜单 public static string GetMenu(string token) return HttpPost(string.Format(GetMenuUrl, token); #endregion #region 获取access_token / / 获取access_token / / public static string GetToken() string access_token = ; string url = /cgi-bin/token?grant_type=client_credential&appid= + AppID + &secret= + AppSecret + ;/你成为开发者后会有一个appID和appSecret string response = HttpGet(url); JavaScriptSerializer json = new JavaScriptSerializer(); /实例化一个能够序列化数据的类 ToJson list = json.Deserialize(response); /将json数据转化为对象类型并赋值给list access_token = list.access_token; /获取JSON里access_token值 return access_token; #region 中转对象 public struct ToJson public string access_token get; set; /属性的名字，必须与json格式字符串中的key值一样。 public string expires get; set; #endregion #endregion #region Get请求 / / HTTP GET方式请求数据. / / URL. / private static string HttpGet(string url) HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); request.Method = GET; request.Accept = */*; request.Timeout = 15000; request.AllowAutoRedirect = false; WebResponse response = null; string responseStr = null; try response = request.GetResponse(); if (response != null) StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); responseStr = reader.ReadToEnd(); reader.Close(); catch (Exception) throw; finally request = null; response = null; return responseStr; #endregion #region POST请求 / / HTTP POST方式请求数据 / / URL. / private static string HttpPost(string url) HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); request.Method = POST; request.ContentType = application/x-www-form-urlencoded; request.Accept = */*; request.Timeout = 15000; request.AllowAutoRedirect = false; WebResponse response = null; string responseStr = null; try response = request.GetResponse(); if (response != null) StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); responseStr = reader.ReadToEnd(); /File.WriteAllText(Server.MapPath(/) + test.txt, responseStr); reader.Close(); catch (Exception) throw; finally request = null; response = null; return responseStr; / / HTTP POST方式请求数据 / / URL. / POST的数据 / public static string HttpPost(string url, string param) HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); request.Method = POST; request.ContentType = application/x-www-form-urlencoded; request.Accept = */*; request.Timeout = 15000; request.AllowAutoRedirect = false; StreamWriter requestStream = null; WebResponse response = null; string responseStr = null; try requestStream = new StreamWriter(request.GetRequestStream(); requestStream.Write(param); requestStream.Close(); response = request.GetResponse(); if (response != null) StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); responseStr = reader.Rea