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这篇文章主要介绍了微信开发 消息推送实现代码的相关资料,需要的朋友可以参考下

最近做微信公共号的开发，有个需求是这样的消息推送，以文本的形式把编辑的消息发送给微信企业号中的某一个应用组，这里做下笔记，以下是整理内容：

//定义数据模型 public class Access_token{public Access_token(){//// TODO: 在此处添加构造函数逻辑//}string _access_token;string _expires_in; ///  /// 获取到的凭证/// public string access_token{get { return _access_token; }set { _access_token = value; }}  ///  /// 凭证有效时间，单位：秒/// public string expires_in{get { return _expires_in; }  set { _expires_in = value; }} }

 public ActionResult index(string returnUrl){ GetAccess_token()； IsExistAccess_Token()； return View();}   public static Access_token GetAccess_token(){string AppUrl = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?";string AppID = "应用组的CorpID";//在设置-》权限管理-》系统管理组string AppSecret = "应用组的Secret";//在设置-》权限管理-》系统管理组WebClient webClient = new WebClient();Byte[] bytes = webClient.DownloadData(string.Format("{0}corpid={1}&corpsecret={2}", AppUrl, AppID, AppSecret));string result = Encoding.GetEncoding("utf-8").GetString(bytes);JObject jObj = JObject.Parse(result); string token = jObj["access_token"].ToString();string expires_in = jObj["expires_in"].ToString(); Access_token mode = new Access_token();mode.access_token = token;mode.expires_in = expires_in;return mode;} ///

根据当前日期 判断Access_Token 是否超期 如果超期返回新的Access_Token 否则返回之前的Access_Token

public static string IsExistAccess_Token(){string Token = string.Empty;DateTime YouXRQ;string strPath = "../../weixin/XMLFile.xml";// 读取XML文件中的数据，并显示出来//string filepath = System.Web.Hosting.HostingEnvironment.MapPath(strPath);string filepath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath); StreamReader str = new StreamReader(filepath, System.Text.Encoding.UTF8);XmlDocument xml = new XmlDocument();xml.Load(str);str.Close();str.Dispose();Token = xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText;YouXRQ = Convert.ToDateTime(xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText);  if (DateTime.Now > YouXRQ){DateTime _youxrq = DateTime.Now;Access_token mode = GetAccess_token();xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText = mode.access_token;_youxrq = _youxrq.AddSeconds(int.Parse(mode.expires_in));xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText = _youxrq.ToString();xml.Save(filepath);Token = mode.access_token;} object text = new{toparty = "1",agentid = "2",msgtype = "text",text = new{content = "项目名称："+来保网+""}}; string wcr= btnSend(Token, text);return wcr; }public static string btnSend(string Token, object text){ string url = "https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=" + Token;WebRequest req = WebRequest.Create(url);JavaScriptSerializer aa = new JavaScriptSerializer();string postData = aa.Serialize(text);byte[] requestBytes = Encoding.UTF8.GetBytes(postData);req.Method = "POST";req.ContentType = "application/x-www-form-urlencoded";req.ContentLength = requestBytes.Length; Stream requestStream = req.GetRequestStream();requestStream.Write(requestBytes, 0, requestBytes.Length);requestStream.Close();HttpWebResponse res = (HttpWebResponse)req.GetResponse();StreamReader sr = new StreamReader(res.GetResponseStream(), Encoding.Default);string backstr = sr.ReadToEnd();sr.Close();res.Close();WeChatReturn WCR = aa.Deserialize(backstr);return WCR.errmsg; }

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