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HTML5网页定位,并将位置绘在百度地图上

SDCMS模板堂 与 2018/6/9 0:21:48 发布此文章 人气:196   技术知识
<!DOCTYPE html> 
<html lang="en"> 
<head> 
    <meta charset="UTF-8"> 
    <title>HTML5定位</title> 
    <meta name="viewport" content="width=device-width, initial-scale=1" /> 
    <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.7.2/jquery.min.js"></script> 
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=wqBXfIN3HkpM1AHKWujjCdsi"></script> 
    <script type="text/javascript" src="http://developer.baidu.com/map/jsdemo/demo/convertor.js"></script> 
    <style type="text/css"> 
        * { margin: 0px; padding: 0px; } 
        body { font: normal 100% Helvetica, Arial, sans-serif; text-align: center; height: 100%; overflow: hidden; } 
        #allmap { width: 100%; height: 100%; position: absolute; } 
    </style> 
</head> 
<body> 
    <script type="text/javascript"> 
        $(function () { 
            // 单次位置请求执行的函数              
            function getLocation() { 
                if (navigator.geolocation) { 
                    navigator.geolocation.getCurrentPosition(showPosition, locationError); 
                } else { 
                    alert("你的浏览器不支持 GeoLocation."); 
                } 
            } 
    
            // 页面加载时执行getLocation函数 
            //window.onload = getLocation; 
    
            $("#btn").click(function () { 
                getLocation(); 
            }); 
    
            getLocation(); 
        }); 
    
        //定位成功时,执行的函数 
        function showPosition(position) { 
            var lon = position.coords.longitude; 
            var lat = position.coords.latitude; 
            // alert("您位置的经度是:"+lon+" 纬度是:"+lat); 
            var map = new BMap.Map("allmap"); 
            var point = new BMap.Point("" + lon + "", "" + lat + ""); 
            map.centerAndZoom(point, 19); 
            var gc = new BMap.Geocoder(); 
            translateCallback = function (point) { 
                var marker = new BMap.Marker(point); 
                map.addOverlay(marker); 
                map.setCenter(point); 
                gc.getLocation(point, function (rs) { 
                    var addComp = rs.addressComponents; 
                    if (addComp.province !== addComp.city) { 
                        var sContent = 
                                  "<div><h4 style='margin:0 0 5px 0;padding:0.2em 0'>你当前的位置是:</h4>" + 
                                  "<p style='margin:0;line-height:1.5;font-size:13px;text-indent:2em'>" + addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street + ", " + addComp.streetNumber + "</p>" + 
                                  "</div>"; 
                    } 
                    else { 
                        var sContent = 
                                  "<div><h4 style='margin:0 0 5px 0;padding:0.2em 0'>你当前的位置是:</h4>" + 
                                  "<p style='margin:0;line-height:1.5;font-size:13px;text-indent:2em'>" + addComp.city + ", " + addComp.district + ", " + addComp.street + ", " + addComp.streetNumber + "</p>" + 
                                  "</div>"; 
                    } 
                    var infoWindow = new BMap.InfoWindow(sContent); 
                    map.openInfoWindow(infoWindow, point); 
                }); 
            } 
            BMap.Convertor.translate(point, 0, translateCallback); 
        } 
        // 定位失败时,执行的函数 
        function locationError(error) { 
            switch (error.code) { 
                case error.PERMISSION_DENIED: 
                    alert("User denied the request for Geolocation."); 
                    break; 
                case error.POSITION_UNAVAILABLE: 
                    alert("Location information is unavailable."); 
                    break; 
                case error.TIMEOUT: 
                    alert("The request to get user location timed out."); 
                    break; 
                case error.UNKNOWN_ERROR: 
                    alert("An unknown error occurred."); 
                    break; 
            } 
        } 
    </script> 
    <input type="button" value="网页定位-获取我的位置" id="btn" style="padding: 10px 20px; font-size: 120%; 
        margin: 20px;" /> 
    <div id="allmap"> 
    </div> 
</body> 
</html>


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