调用微信JsAPI端获取位置 

   public partial class test : BasePage
    {
        protected test()
        {
            AccessPage = PageWebType.WX;
        }

        protected string app_Id
        {
            get { return ViewState["app_Id"].ToString(); }
            set { ViewState["app_Id"] = value; }
        }

        protected string timestamp
        {
            get { return ViewState["timestamp"].ToString(); }
            set { ViewState["timestamp"] = value; }
        }

        protected string nonceStr
        {
            get { return ViewState["nonceStr"].ToString(); }
            set { ViewState["nonceStr"] = value; }
        }

        protected string signature
        {
            get { return ViewState["signature"].ToString(); }
            set { ViewState["signature"] = value; }
        }

        protected string ticket
        {
            get { return ViewState["ticket"].ToString(); }
            set { ViewState["ticket"] = value; }
        }

        protected string open_id
        {
            get { return ViewState["open_id"].ToString(); }
            set { ViewState["open_id"] = value; }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                InitData();

                lblInfo.Text = GetPointDistance(22.724623, 113.31403, 22.72464, 113.31404).ToString();
            }
        }

        private void InitData()
        {
            //绑定js接口调用参数
            var url = System.Configuration.ConfigurationManager.AppSettings["RootUrl"].ToString();
            if (url.Length > 0)
            {
                var query = Request.Url.Query;
                var strUrl = url + "/app/css/test.aspx" + query;
                JsSignatureModel jsModel = new JsAPIOprate().GetJsApiSignature(CssUnionID, strUrl);
                if (jsModel != null)
                {
                    app_Id = jsModel.app_id;
                    signature = jsModel.signature;
                    nonceStr = jsModel.noncestr;
                    timestamp = jsModel.timestamp;
                    ticket = jsModel.ticket;
                }
            }
            open_id = GetQueryString("open_id");
            hideOpen_id.Value = open_id;
        }

        private const double EARTH_RADIUS = 6378.137;//地球半径
        private static double Rad(double d)
        {
            return d * Math.PI / 180.0;
        }
        /// <summary>
        /// 返回两经纬度距离(千米)
        /// </summary>
        /// <param name="lat1">纬度1</param>
        /// <param name="lng1">经度1</param>
        /// <param name="lat2">纬度2</param>
        /// <param name="lng2">经度2</param>
        /// <returns></returns>
        private double GetPointDistance(double lat1, double lng1, double lat2, double lng2)
        {
            double radLat1 = Rad(lat1);
            double radLat2 = Rad(lat2);
            double a = radLat1 - radLat2;
            double b = Rad(lng1) - Rad(lng2);

            double s = 2 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin(a / 2), 2) +
             Math.Cos(radLat1) * Math.Cos(radLat2) * Math.Pow(Math.Sin(b / 2), 2)));
            s = s * EARTH_RADIUS;
            s = Math.Round(s * 10000) / 10000;
            return s;
        }
    }
<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server"><title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no;" /> 
<script type="text/javascript" src="../../js/jquery.1.11.1.min.js"></script>
<script type="text/javascript" src="../../js/jweixin-1.0.0.js"></script>
<script type="text/javascript">   
    $(function () {
        wx.config({
            debug: false,
            appId: '<%=app_Id%>',
            timestamp: <%=timestamp%>,
            nonceStr: '<%=nonceStr%>',
            signature: '<%=signature%>',
            jsApiList: [
              'checkJsApi',             
              'getLocation'
            ]
        });
        wx.ready(function () {
            var isCheck=false;
            wx.checkJsApi({
                jsApiList: [
                  'checkJsApi',  
                  'getLocation'
                ],
                success: function (res) {
                    //alert(JSON.stringify(res));
                    isCheck=res.checkResult.getLocation;
                }
            });
            document.querySelector('#btnLocation').onclick = function () {
                if(!isCheck){
                    msgtip("您的微信版本不支持获取位置！");
                    return;
                }
                wx.getLocation({
                    success: function (res) {
                        alert(JSON.stringify(res));
                    },
                    cancel: function (res) {
                        alert('发生错误');
                    }
                });
            };
        });
        wx.error(function (res) {
            alert(res.errMsg);
        });

    });
   
</script>
</head>
<body>
    <form id="form1" runat="server">
        <header class="ui-header ui-header-positive ui-border-b">
            <i class="ui-icon-return" onclick="history.back()"></i><h1>获取地址位置</h1><a href="Default.aspx?open_id=" class="sp-back sp-home"></a> 
        </header>
        <div class="panel-body" style="margin-top:45px;">
             <input type="button" id="btnLocation" value="取得位置" />
            <asp:Literal ID="lblInfo" runat="server"></asp:Literal>
           </div>
        <div class="ui-poptips ui-poptips-warn" id="divInfo" style="display:none;">
            <div class="ui-poptips-cnt"><i></i><span id="spntool"></span></div><input type="hidden" id="hideCard_no" />
        </div><div id="datePlugin"></div><asp:HiddenField ID="hideOpen_id" runat="server" />            
    </form>
</body>
</html>

 

posted @ 2015-08-15 16:01  --宁静以致远--  阅读(4778)  评论(0)    收藏  举报