百度地图api定位，并根据经纬度转换为地址

方法一

//浏览器定位，并根据定位经纬度转换为地址描述。
var positionOptions = {
    enableHighAccuracy: true,
    timeout: 3000,
    maximumAge: 0
};
var geolocation = new BMap.Geolocation();
geolocation.getCurrentPosition(function(geolocationResult){
    if(geolocationResult!=null){
        alert(geolocationResult.point.lng)
        // alert(geolocationResult.accuracy)
        console.log(geolocationResult.point)
        var myGeo = new BMap.Geocoder();
        // 根据坐标得到地址描述
        myGeo.getLocation(new BMap.Point(geolocationResult.point.lng,geolocationResult.point.lat), function(result){
            console.log(result.addressComponents)
            console.log(result)
            console.log(geolocationResult.point)
            if (result){
                location = result.address
                alert(location);
            }
        });
    }
}, positionOptions);

方法二

var geolocation = new BMap.Geolocation();
geolocation.getCurrentPosition(function(r){
    if(this.getStatus() == BMAP_STATUS_SUCCESS){
        //根据定位经纬度添加标记
        var mk = new BMap.Marker(r.point);
        map.addOverlay(mk);
        console.log(r.point)
        map.panTo(r.point);
        alert('您的位置：'+r.point.lng+','+r.point.lat);
        //根据坐标获取地理位置
        map.centerAndZoom(new BMap.Point(r.point.lng,r.point.lat), 10);
        // 创建地理编码实例
        var myGeo = new BMap.Geocoder();
        // 根据坐标得到地址描述
        myGeo.getLocation(new BMap.Point(r.point.lng,r.point.lat), function(result){
            console.log(result.addressComponents);
            console.log(result)
            console.log(r.point)
            if (result){
                location = result.address
                alert(location);
            }
        });
    }
    else {
        alert('failed'+this.getStatus());
    }
});