/// <summary>
/// 调用微信接口获取带参数永久二维码的ticket
/// 使用方法：https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=TICKET
/// </summary>
/// <param name="scene_id">二维码带的参数</param>
/// <returns>json:ticket:换取二维码的凭证，expire_seconds:凭证有效时间，url:二维码解析后的地址。此处返回ticket 否则返回错误码</returns>
public string GetQrcode(string appid, string appsecret, string scene_str)
{
string QrcodeUrl = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={0}"; //WxQrcodeAPI接口
string AccessToken = BasicApi.GetAccessToken(appid, appsecret); //拉取AccessToken
QrcodeUrl = string.Format(QrcodeUrl, AccessToken);
string PostJson = "{\"expire_seconds\": 1800, \"action_name\": \"QR_LIMIT_STR_SCENE\", \"action_info\": {\"scene\": {\"scene_str\": " + scene_str + "}}}";
string ReText = common.CommonMethod.WebRequestPostOrGet(QrcodeUrl, PostJson);//此处省略了 WebRequestPostOrGet即为WebHttpRequest发送Post请求
Dictionary <string, object> reDic = (Dictionary <string, object>)Jss.DeserializeObject(ReText);
if (reDic.ContainsKey("ticket"))
{
return(reDic["ticket"].ToString());//成功
}
else
{
return(reDic["errcode"].ToString());//返回错误码
}
}
/// <summary>
/// 获取JsApi权限配置的数组/四个参数
/// </summary>
/// <param name="Appid">应用id</param>
/// <param name="Appsecret">密钥</param>
/// <returns>json格式的四个参数</returns>
public string GetJsApiInfo(string Appid, string Appsecret)
{
string timestamp = CommonMethod.ConvertDateTimeInt(DateTime.Now).ToString(); //生成签名的时间戳
string nonceStr = CommonMethod.GetRandCode(16); //生成签名的随机串
string url = System.Web.HttpContext.Current.Request.Url.AbsoluteUri.ToString(); //当前的地址
string jsapi_ticket = "";
//ticket 缓存7200秒
if (System.Web.HttpContext.Current.Session["jsapi_ticket"] == null)
{
jsapi_ticket = CommonMethod.WebRequestPostOrGet("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + BasicApi.GetTokenSession(Appid, Appsecret) + "&type=jsapi", "");
System.Web.HttpContext.Current.Session["jsapi_ticket"] = jsapi_ticket;
System.Web.HttpContext.Current.Session.Timeout = 7200;
}
else
{
jsapi_ticket = System.Web.HttpContext.Current.Session["jsapi_ticket"].ToString();
}
Dictionary <string, object> respDic = (Dictionary <string, object>)Jss.DeserializeObject(jsapi_ticket);
jsapi_ticket = respDic["ticket"].ToString();//获取ticket
string[] ArrayList = { "jsapi_ticket=" + jsapi_ticket, "timestamp=" + timestamp, "noncestr=" + nonceStr, "url=" + url };
Array.Sort(ArrayList);
string signature = string.Join("&", ArrayList);
signature = FormsAuthentication.HashPasswordForStoringInConfigFile(signature, "SHA1").ToLower();
return("{\"appId\":\"" + Appid + "\", \"timestamp\":" + timestamp + ",\"nonceStr\":\"" + nonceStr + "\",\"signature\":\"" + signature + "\"}");
}