class SysVisitor { private static SysVisitor visit = null; public static SysVisitor Current { get { if (visit == null) visit = new SysVisitor(); return visit; } } /// <summary> /// 获取access_token /// </summary> /// <param>appid</param> /// <param>appsecret</param> /// <returns></returns> public string Get_Access_token(string appid, string appsecret) { string secondappid = INIFile.ContentValue("weixin", "secondappid"); if (appid.ToLower() == secondappid.ToLower()) { string ls_time = INIFile.ContentValue("weixin", "gettime"); Decimal ldt; try { ldt = Convert.ToDecimal(ls_time); if (Convert.ToDecimal(DateTime.Now.ToString("yyyyMMddHHmmss")) - ldt < 7100)//每两个小时刷新一次 { return INIFile.ContentValue("weixin", "access_token"); } } catch { } } string ls_appid = appid.Replace(" ", ""); string ls_secret = appsecret.Replace(" ", ""); string access_token = ""; string url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", ls_appid, ls_secret); string json_access_token = GetPageInfo(url); //DataTable dt = Json.JsonToDataTable(json_access_token); DataTable dt = JsonHelper.JsonToDataTable(json_access_token); try { access_token = dt.Rows[0]["access_token"].ToString(); } catch { return ""; } INIFile.SetINIString("weixin", "gettime", DateTime.Now.ToString("yyyyMMddHHmmss")); INIFile.SetINIString("weixin", "access_token", access_token); INIFile.SetINIString("weixin", "secondappid", ls_appid); return access_token; } /// <summary> /// 获取access_token /// </summary> public string Get_Access_token() { string ls_appid = INIFile.ContentValue("weixin", "Appid"); string ls_secret = INIFile.ContentValue("weixin", "AppSecret"); return Get_Access_token(ls_appid, ls_secret); } /// <summary> /// Get方法请求url并接收返回消息 /// </summary> /// <param>Url地址</param> /// <returns></returns> public string GetPageInfo(string url) { HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string ret = string.Empty; Stream s; string StrDate = ""; string strValue = ""; if (response.StatusCode == HttpStatusCode.OK) { s = response.GetResponseStream(); ////在这儿处理返回的文本 StreamReader Reader = new StreamReader(s, Encoding.UTF8); while ((StrDate = Reader.ReadLine()) != null) { strValue += StrDate + "\r\n"; } //strValue = Reader.ReadToEnd(); } return strValue; } /// <summary> /// Post方法 /// </summary> /// <param>URL</param> /// <param>Post数据</param> /// <returns></returns> public string PostPage(string posturl, string postData) { Stream outstream = null; Stream instream = null; StreamReader sr = null; HttpWebResponse response = null; HttpWebRequest request = null; Encoding encoding = Encoding.UTF8; byte[] data = encoding.GetBytes(postData); // 准备请求... try { // 设置参数 request = WebRequest.Create(posturl) as HttpWebRequest; CookieContainer cookieContainer = new CookieContainer(); request.CookieContainer = cookieContainer; request.AllowAutoRedirect = true; request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = data.Length; outstream = request.GetRequestStream(); outstream.Write(data, 0, data.Length); outstream.Close(); //发送请求并获取相应回应数据 response = request.GetResponse() as HttpWebResponse; //直到request.GetResponse()程序才开始向目标网页发送Post请求 instream = response.GetResponseStream(); sr = new StreamReader(instream, encoding); //返回结果网页（html）代码 string content = sr.ReadToEnd(); string err = string.Empty; return content; } catch (Exception ex) { string err = ex.Message; return string.Empty; } } /// <summary> /// 格式化字符串 /// </summary> /// <param></param> /// <returns></returns> public string GetFormatStr(string str) { if ("" == str) return ""; else { str = str.Trim(); str = str.Replace("'", "'"); str = str.Replace("〈", "<"); str = str.Replace("〉", ">"); str = str.Replace("，", ","); return str; } } string ls_username = ""; /// <summary> /// 用户名 /// </summary> public string Wx_username { get { return ls_username; } set { ls_username = value; } } string ls_openid = ""; /// <summary> /// Openid /// </summary> public string Wx_openid { get { return ls_openid; } set { ls_openid = value; } } }
INIFile.cs代码: