微网站-扫一扫

private static string corpid = "你的appid";//在公众号里面点击设置 ???????private static string corpsecret = "你的secrect"; ?????//通过得到的token，得到ticket ??????????????string url2 = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token={0}&type=jsapi"; ???????//这个得到Ticket，使用get请求 ??????????????public ?Access_ticket accessTicket() ???????{ ???????????????????????Access_ticket atic = new Access_ticket(); ??????????????????????var eigq=Convert.ToDateTime(Session["expires_in"]); ???????????//判断凭证是否过期； ??????????if (eigq >= DateTime.Now) ???????????????????????{ ???????????????atic.ticket = Session["ticket"].ToString(); ???????????????atic.expires_in = Session["expires_in"].ToString(); ??????????????} ???????????else ???????????{ ???????????//根据appid和secret，获取accesstoken ???????????AccessToken AccessToken = GetAccessToken(corpid, corpsecret); ???????????Session["expires_in"] = AccessToken.expires_in; ???????????//string json = GetHtml(string.Format(url2, AccessToken.access_token)); ???????????string result = HttpGet(string.Format(url2, AccessToken.access_token)); ???????????JavaScriptSerializer Se = new JavaScriptSerializer(); ???????????Dictionary<string, string> _dic = Se.Deserialize<Dictionary<string, string>>(result); ???????????string errcode=""; ???????????_dic.TryGetValue("errcode", out ?errcode); ???????????// ???????????//为0获取拼争成功 ???????????if (errcode=="0") ???????????{ ????????????????string ticket = String.Empty; ???????????????string expires_in = String.Empty; ???????????????_dic.TryGetValue("ticket", out ticket); ???????????????_dic.TryGetValue("expires_in", out expires_in); ???????????????atic.ticket = ticket; ???????????????atic.expires_in = expires_in; ???????????????Session["ticket"] = ticket; ???????????} ??????????????????????????} ???????????return atic; ???????????????????} ???????//获取签名 ???????[HttpGet] ???????public ?void Getsignature(string url) ???????{ ???????????Access_ticket Access_ticket = accessTicket(); ???????????string ticket = Access_ticket.ticket; ???????????????????????//这个是所有得到的东西拼接成一个字符串，1.jsapi_ticket：上面得到的ticket 2.noncestr:这个是随机的字符串，必须和上面（3）的那个一样 3.timestamp：这个是随机的字符串，必须和上面（3）的那个一样， ???????????//4.url:地址一定要详细，比如：http://baidu.com/1.html ?哪个页面需要调用 扫一扫，就使用哪个页面的地址 ???????????string string1 = "jsapi_ticket=" + ticket + "&noncestr=Wm3WZYTPz0wzccnW&timestamp=1414587457&url=" + url + ""; ???????????//使用sha1加密这个字符串 ??????????????????????Response.Write(SHA1(string1)); ???????????Response.End(); ???????} ??????????????/// <summary> ???????/// 32位小写 ???????/// </summary> ???????/// <returns></returns> ???????public static string SHA1(string s) ???????{ ???????????s = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(s, "SHA1").ToString(); ???????????return s.ToLower(); ???????} ???????/// <summary> ???????/// 获取token ???????/// </summary> ???????/// <param name="appID"></param> ???????/// <param name="secret"></param> ???????/// <returns></returns> ???????public static AccessToken GetAccessToken(string appID, string secret) ???????{ ???????????AccessToken at = new AccessToken(); ??????????string ?token = String.Empty; ??????????DateTime ?expressDate = DateTime.Now; ???????????string result = HttpGet(String.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", appID, secret)); ???????????if (result.Contains("errcode")) ???????????{ ???????????????at.expires_in = DateTime.Now; ???????????????at.access_token = ""; ???????????} ???????????else ???????????{ ???????????????JavaScriptSerializer Se = new JavaScriptSerializer(); ???????????????Dictionary<string, string> _dic = Se.Deserialize<Dictionary<string, string>>(result); ???????????????string access_token = String.Empty; ???????????????string expressTime = String.Empty; ???????????????_dic.TryGetValue("access_token", out access_token); ???????????????_dic.TryGetValue("expires_in", out expressTime); ???????????????token = access_token; ???????????????expressDate = DateTime.Now.AddSeconds(Convert.ToInt32(expressTime) - 100); ???????????????at.expires_in = expressDate; ???????????????at.access_token = token; ???????????} ???????????return at; ???????} ??????????????//后台get请求 ???????public static string HttpGet(string url) ???????{ ???????????HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); ???????????request.Method = "GET"; ???????????//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(); ???????????????????reader.Close(); ???????????????} ???????????} ???????????catch (Exception) ???????????{ ???????????????throw; ???????????} ???????????finally ???????????{ ???????????????request = null; ???????????????response = null; ???????????} ???????????return responseStr; ???????}

<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> ???<title></title> ???<script src=‘https://res.wx.qq.com/open/js/jweixin-1.2.0.js‘></script> 
 ????<script src="../Scripts/jquery/jquery-2.1.1.min.js"></script> ???<script type="text/JavaScript"> ???????//初始化 ???????$(document).ready(function () { ???????????scan(); ???????}) ???????function scan() { ???????????//alert(location.href.split(‘#‘)[0]); ???????????var signature = ""; ???????????//获取签名：通过后台方法； ???????????$.ajaxSetup({ ???????????????async: false, ???????????}); ???????????$.get(你自己的域名url+ "/weixinclient/Getsignature?url=https://weixin.xxx.com/wx/Pages/Scan.html", function (res) { ???????????????if (res != undefined) { ???????????????????signature = res; ?????????????????????????????????} ???????????}) ???????????wx.config({ ???????????????debug:false, ??//是否调试，true，会弹窗 ???????????????appId:‘你自己的appid‘, //得到这个东西，首先必须有一个公众号，或者企业号，如果已经拥有了，你可以就知道AppId在哪里了。 ???????????????timestamp:‘1414587457‘,//生成签名的时间戳，随机数，之后会用这个生成一个签名 ???????????????nonceStr: ‘Wm3WZYTPz0wzccnW‘,//生成签名的随机串，随机串，之后会用这个生成一个签名 ???????????????signature:signature,//这个就是签名了，在步骤4，我会详细讲解 ???????????????jsApiList:[‘scanQRCode‘] //开启扫一扫功能，这里还可以添加更多的功能，比如微信支付 ???????????????????????????}); ???????????????????????wx.ready(function () { ???????????????wx.scanQRCode({ ???????????????????desc:‘scanQRCode desc‘, ???????????????????needResult: 1, // 默认为0，扫描结果由微信处理，1则直接返回扫描结果， ???????????????scanType: ["qrCode", "barCode"], // 可以指定扫二维码还是一维码，默认二者都有 ???????????????success: function (res) { ???????????????????//获得二维码内容； ???????????????????var guid = res.resultStr; ??????????????????????????????????} ???????????}); ???????}); ????????} ????????????</script></head><body> ????</body></html>