百度地图api定位，并根据经纬度转换为地址

方法一

 1 //浏览器定位，并根据定位经纬度转换为地址描述。
 2 var positionOptions = {
 3     enableHighAccuracy: true,
 4     timeout: 3000,
 5     maximumAge: 0
 6 };
 7 var geolocation = new BMap.Geolocation();
 8 geolocation.getCurrentPosition(function(geolocationResult){
 9     if(geolocationResult!=null){
10         alert(geolocationResult.point.lng)
11         // alert(geolocationResult.accuracy)
12         console.log(geolocationResult.point)
13         var myGeo = new BMap.Geocoder();
14         // 根据坐标得到地址描述
15         myGeo.getLocation(new BMap.Point(geolocationResult.point.lng,geolocationResult.point.lat), function(result){
16             console.log(result.addressComponents)
17             console.log(result)
18             console.log(geolocationResult.point)
19             if (result){
20                 location = result.address
21                 alert(location);
22             }
23         });
24     }
25 }, positionOptions);

方法二

 1 var geolocation = new BMap.Geolocation();
 2 geolocation.getCurrentPosition(function(r){
 3     if(this.getStatus() == BMAP_STATUS_SUCCESS){
 4         //根据定位经纬度添加标记
 5         var mk = new BMap.Marker(r.point);
 6         map.addOverlay(mk);
 7         console.log(r.point)
 8         map.panTo(r.point);
 9         alert('您的位置：'+r.point.lng+','+r.point.lat);
10         //根据坐标获取地理位置
11         map.centerAndZoom(new BMap.Point(r.point.lng,r.point.lat), 10);
12         // 创建地理编码实例
13         var myGeo = new BMap.Geocoder();
14         // 根据坐标得到地址描述
15         myGeo.getLocation(new BMap.Point(r.point.lng,r.point.lat), function(result){
16             console.log(result.addressComponents);
17             console.log(result)
18             console.log(r.point)
19             if (result){
20                 location = result.address
21                 alert(location);
22             }
23         });
24     }
25     else {
26         alert('failed'+this.getStatus());
27     }
28 });