using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Security;
using System.Web.Script.Serialization;
using sohovan.com.wxapi;

namespace WXKF
{
    public class JsApi
    {
        JavaScriptSerializer Jss = new JavaScriptSerializer();

        public JsApi() { }

        #region 验证JsApi权限配置 
        /// <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.CommonMethod.ConvertDateTimeInt(DateTime.Now).ToString();//生成签名的时间戳
            string nonceStr = CommonMethod.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.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 + "\"}";
        }
        #endregion
    }
}

 public string appId;
        public string timestamp;
        public string nonceStr;
        public string signature;
        protected void Page_Load(object sender, EventArgs e)
        {
            JsApi jsapi = new JsApi();
            string data = jsapi.GetJsApiInfo("***", "***");
            JObject jo = (JObject)JsonConvert.DeserializeObject(data);
            appId = jo["appId"].ToString();
            timestamp = jo["timestamp"].ToString();
            nonceStr = jo["nonceStr"].ToString();
            signature = jo["signature"].ToString();
            //Response.Write("<script type=‘text/javascript‘>btn();</script>");
            // ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script>btn();</script>"); 

        }

    <title>请稍等,定位中。。。</title>
    <script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
    <script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
    <script src="Scripts/jquery-1.7.1.min.js"></script>
     <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=IWf1r4wh9pdpXUPOwGvkLxYW"></script>
    <script src="Scripts/cvi_busy_lib.js"></script>
 
    <script>
        function wxconfig() {
            wx.config({
                debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
                appId: ‘<% =appId%>‘, // 必填，公众号的唯一标识
                timestamp: ‘<% =timestamp%>‘, // 必填，生成签名的时间戳
                nonceStr: ‘<% =nonceStr%>‘, // 必填，生成签名的随机串
                signature: ‘<% =signature%>‘,// 必填，签名，见附录1
                jsApiList: [
                      ‘onMenuShareTimeline‘,
                       ‘onMenuShareAppMessage‘,
                       ‘onMenuShareQQ‘,
                       ‘onMenuShareWeibo‘,
                       ‘getLocation‘,
                       ‘openLocation‘

                ] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
            });
        }
        var getParam = function (name) {
            var search = document.location.search;
            var pattern = new RegExp("[?&]" + name + "\=([^&]+)", "g");
            var matcher = pattern.exec(search);
            var items = null;
            if (null != matcher) {
                try {
                    items = decodeURIComponent(decodeURIComponent(matcher[1]));
                } catch (e) {
                    try {
                        items = decodeURIComponent(matcher[1]);
                    } catch (e) {
                        items = matcher[1];
                    }
                }
            }
            return items;
        };
        wx.ready(function () {
            wx.getLocation({
                type: ‘wgs84‘, // 默认为wgs84的gps坐标，如果要返回直接给openLocation用的火星坐标，可传入‘gcj02‘  
                success: function (res) {
                    var latitude = res.latitude; // 纬度，浮点数，范围为90 ~ -90  
                    var longitude = res.longitude; // 经度，浮点数，范围为180 ~ -180。  
                    var speed = res.speed; // 速度，以米/每秒计  
                    var accuracy = res.accuracy; // 位置精度  
                  alert("维度：" + latitude + "     经度:" + longitude);
                
                },
                cancel: function (res) {
                    alert(res);
                    alert(‘用户拒绝授权获取地理位置‘);
                }
            });
        });
        wxconfig();


     
    </script>