1、注册google账号（开发文档地址：https://developers.google.com/maps/gmp-get-started）
通过上面文档地址可以创建apikey,及添加自己的使用接口
2、真实示例
1、打开页面获取当前用户地理位置
js代码：
var map, infoWindow;
function initMap() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
console.log(position);
var pos = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
$.ajax({
type : "post",
url : "{:__URL('APP_MAIN/Index/nearShop')}",
data : pos,
success : function(data) {
console.log(data);
$("#shopname").html(data.shopname);
}
})
// console.log(pos);
// infoWindow.setPosition(pos);
// infoWindow.setContent('Location found.');
// infoWindow.open(map);
// map.setCenter(pos);
}, function (error) {
//处理错误
console.log(error);
switch (error.code) {
case 1:
alert("位置服务被拒绝。");
break;
case 2:
alert("暂时获取不到位置信息。");
break;
case 3:
alert("获取信息超时。");
break;
default:
alert("未知错误。");
break;
}
});
} else {
// Browser doesn't support Geolocation
handleLocationError(false, infoWindow, map.getCenter());
}
}引入js文件：
<script async defer
src="https://maps.googleapis.com/maps/api/js?key={$googlekey}&callback=initMap">
</script>2、通过输入的地址获取经纬度
html代码：
<input type="hidden" name="address_lng" value="" id="address_lng">
<input type="hidden" name="address_lat" value="" id="address_lat">js代码：
<script type="text/javascript">
var lngtxt = "-79.33701880000001";
var lattxt = "343.85610020000001";
var addresstxt = "万锦安大略省加拿大";
var map;
var marker;
var infowindow;
var geocoder;
var markersArray = [];
function initAutocomplete() {
var input = document.getElementById('pac-input');
var searchBox = new google.maps.places.SearchBox(input);
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function() {
var places = searchBox.getPlaces();
if(places.length == 0) {
return;
}
// Clear out the old markers.
markers.forEach(function(marker) {
marker.setMap(null);
});
markers = [];
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function(place) {
if(!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
mapClick(place.geometry.location.lng(), place.geometry.location.lat(), place.name);
});
});
}
function mapClick(lng, lat, address) {
window.parent.document.getElementById("address_lng").value = lng;
window.parent.document.getElementById("address_lat").value = lat;
window.parent.document.getElementById("pac-input").value = address;
var shop_name = address;
var address_lng = lng;
var address_lat = lat;
window.location.href="/wap/Index/select_community?shop_name="+shop_name+'&address_lng='+address_lng+'&address_lat='+address_lat;
}
</script>引入js文件：
<script src="https://maps.googleapis.com/maps/api/js?key={$googlekey}&libraries=places&callback=initAutocomplete" async defer></script>后台显示地图及根据地址获取经纬度：
html代码：
<dl>
<dt><i class="required">*</i>门店地址：</dt>
<dd>
<input class="productname input-common" id="pac-input" type='text' name="shop_address_two" value=""
placeholder="Search Box"/>
<input type="hidden" id="address">
<div id="map" style="width:700px; height:400px"></div>
</dd>
</dl>
<dl>
<dt> <i class="required">*</i>经纬度：</dt>
<dd>
<input id="address_lng" name="shop_lonlat2" type="text" placeholder="" value="" class="input-common harf">
<input id="address_lat" name="shop_lonlat1" type="text" placeholder="" value="" class="input-common harf">
</dd>
</dl>js代码：
<script type="text/javascript">
// var lngtxt = "101.686855";
// var lattxt = "3.139003";
// var addresstxt = "吉隆坡";
var lngtxt = "{$data['shop_lon']}";
var lattxt = "{$data['shop_lat']}";
var addresstxt = "{$data['shop_address']}";
var map;
var marker;
var infowindow;
var geocoder;
var markersArray = [];
function initAutocomplete() {
var latlng = new google.maps.LatLng(lattxt, lngtxt);
var myOptions = {
zoom: 13,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById('map'), myOptions);
geocoder = new google.maps.Geocoder(); //实例化地址解析
//监听点击地图事件
google.maps.event.addListener(map, 'click', function(event) {
placeMarker(event.latLng);
});
// Create the search box and link it to the UI element.
var input = document.getElementById('pac-input');
var searchBox = new google.maps.places.SearchBox(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
// Bias the SearchBox results towards current map's viewport.
map.addListener('bounds_changed', function() {
searchBox.setBounds(map.getBounds());
});
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function() {
var places = searchBox.getPlaces();
if(places.length == 0) {
return;
}
// Clear out the old markers.
markers.forEach(function(marker) {
marker.setMap(null);
});
markers = [];
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function(place) {
if(!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
var icon = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
//console.log(place.geometry.location.lat());
mapClick(place.geometry.location.lng(), place.geometry.location.lat(), place.name);
// Create a marker for each place.
markers.push(new google.maps.Marker({
map: map,
icon: icon,
title: place.name,
position: place.geometry.location
}));
if(place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
});
}
function placeMarker(location) {
clearOverlays(infowindow); //清除地图中的标记
marker = new google.maps.Marker({
position: location,
map: map
});
markersArray.push(marker);
//根据经纬度获取地址
if(geocoder) {
geocoder.geocode({
'location': location
}, function(results, status) {
if(status == google.maps.GeocoderStatus.OK) {
if(results[0]) {
attachSecretMessage(marker, results[0].geometry.location, results[0].formatted_address);
}
} else {
alert("Geocoder failed due to: " + status);
}
});
}
}
//在地图上显示经纬度地址
function attachSecretMessage(marker, piont, address) {
var message = "<b>坐标:</b>" + piont.lat() + " , " + piont.lng() + "<br />" + "<b>地址:</b>" + address;
var infowindow = new google.maps.InfoWindow({
content: message,
size: new google.maps.Size(50, 50)
});
infowindow.open(map, marker);
if(typeof(mapClick) == "function") mapClick(piont.lng(), piont.lat(), address);
}
//删除所有标记阵列中消除对它们的引用
function clearOverlays(infowindow) {
if(markersArray && markersArray.length > 0) {
for(var i = 0; i < markersArray.length; i++) {
markersArray[i].setMap(null);
}
markersArray.length = 0;
}
if(infowindow) {
infowindow.close();
}
}
function setiInit() {
// 页面加载显示默认lng lat address---begin
if(lattxt != '' && lngtxt != '' && addresstxt != '') {
var latlng = new google.maps.LatLng(lattxt, lngtxt);
marker = new google.maps.Marker({
position: latlng,
map: map
});
markersArray.push(marker);
attachSecretMessage(marker, latlng, addresstxt);
}
}
function mapClick(lng, lat, address) {
window.parent.document.getElementById("address_lng").value = lng;
window.parent.document.getElementById("address_lat").value = lat;
window.parent.document.getElementById("address").value = address;
}
window.onload = function() {
setiInit();
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=key&libraries=places&callback=initAutocomplete" async defer></script>1、地理位置请求接口：
地址：https://developers.google.com/maps/documentation/geolocation/intro
地理定位请求使用POST发送到以下URL：https://www.googleapis.com/geolocation/v1/geolocate?key=YOUR_API_KEY
根据输入的地址获取经纬度信息：
https://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&key=YOUR_API_KEY
