我试图从自动完成的api谷歌地图获取经度和经度，而不显示地图。在我的脚本中，自动完成功能很好但我无法获得经度和纬度。
<script type="text/javascript">
function initialize() {
var options = {
types: ['(cities)']
};
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input, options);
}
google.maps.event.addDomListener(window, 'load', initialize);
var geocoder = new google.maps.Geocoder();
var address = autocomplete;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var latitude = results[0].geometry.location.lat();
var longitude = results[0].geometry.location.lng();
alert(latitude);
}
});
</script>
答案 0 :(得分：115)
您可以使用以下代码。
<script src="http://maps.googleapis.com/maps/api/js?libraries=places" type="text/javascript"></script>
<script type="text/javascript">
function initialize() {
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input);
google.maps.event.addListener(autocomplete, 'place_changed', function () {
var place = autocomplete.getPlace();
document.getElementById('city2').value = place.name;
document.getElementById('cityLat').value = place.geometry.location.lat();
document.getElementById('cityLng').value = place.geometry.location.lng();
//alert("This function is working!");
//alert(place.name);
// alert(place.address_components[0].long_name);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
此部分位于您的表单中：
<input id="searchTextField" type="text" size="50" placeholder="Enter a location" autocomplete="on" runat="server" />
<input type="hidden" id="city2" name="city2" />
<input type="hidden" id="cityLat" name="cityLat" />
<input type="hidden" id="cityLng" name="cityLng" />
我希望它有所帮助。
答案 1 :(得分：25)
只需要：
var place = autocomplete.getPlace();
// get lat
var lat = place.geometry.location.lat();
// get lng
var lng = place.geometry.location.lng();
答案 2 :(得分：4)
您无法从自动填充API获取纬度/经度，因为Google从该API生成的数据不包含纬度和逻辑字段。 例如： -
{
"predictions" : [
{
"description" : "IIT Mumbai, Mumbai, Maharashtra, India",
"id" : "ac3235cda973818a89b5fe21ad0f5261ac9b6723",
"matched_substrings" : [
{
"length" : 10,
"offset" : 0
}
],
"reference" : "CkQ0AAAAHWg-RSngiYHHdz_yqyFKmfSoBwT-_PW0k8qQDhsbiVrk7BlPHCyJb58OthledMUTGYS5Vhec1Zj2L7w9Rq0zDxIQrbn05RX1QgWHkSXsmTk1TRoU45APW2BBRIUsA3t6XBy_8s0BPPA",
"terms" : [
{
"offset" : 0,
"value" : "IIT Mumbai"
},
{
"offset" : 12,
"value" : "Mumbai"
},
{
"offset" : 20,
"value" : "Maharashtra"
},
{
"offset" : 33,
"value" : "India"
}
],
"types" : [ "establishment", "geocode" ]
}
],
"status" : "OK"
}
您可以使用Google API从您的地址获取经度和纬度。正如您所说，您应该实现一个隐藏字段，其中应插入结果。然后，您可以将位置与坐标一起保存。
我最近在我的一个项目中实现了这个功能：
function getLatLngFromAddress(city, country){
var address = city +", "+ country;
var geocoder = new google.maps.Geocoder();
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
$('#latitude').val(results[0].geometry.location.Pa);
$('#longitude').val(results[0].geometry.location.Qa);
} else {
console.log("Geocode was not successful for the following reason: " + status);
}
});
}
答案 3 :(得分：4)
是的，你可以：
var place = autocomplete.getPlace();
document.getElementById('lat').value = place.geometry.location.lat();
document.getElementById('lon').value = place.geometry.location.lng();
答案 4 :(得分：4)
您可以从放置对象（例如，
）获取经度var place = autocomplete.getPlace();
var latitude = place.geometry.location.lat();
var longitude = place.geometry.location.lng();
答案 5 :(得分：1)
Google Places API还提供REST api，包括地方自动填充功能。 https://developers.google.com/places/documentation/autocomplete
但是从服务中检索的数据必须用于地图。
答案 6 :(得分：1)
你可以从同一个api获得，无需任何额外的api或url电话。
HTML
<input class="wd100" id="fromInput" type="text" name="grFrom" placeholder="From" required/>
Javascript
var input = document.getElementById('fromInput');
var defaultBounds = new google.maps.LatLngBounds(
new google.maps.LatLng(-33.8902, 151.1759),
new google.maps.LatLng(-33.8474, 1512631)
)
var options = {
bounds: defaultBounds
}
var autocomplete = new google.maps.places.Autocomplete(input, options);
var searchBox = new google.maps.places.SearchBox(input, {
bounds: defaultBounds
});
google.maps.event.addListener(searchBox, 'places_changed', function() {
var places = searchBox.getPlaces();
console.log(places[0].geometry.location.G); // Get Latitude
console.log(places[0].geometry.location.K); // Get Longitude
//Additional information
console.log(places[0].formatted_address); // Formated Address of Place
console.log(places[0].name); // Name of Place
if (places.length == 0) {
return;
}
var bounds = new google.maps.LatLngBounds();
console.log(bounds);
});
}
答案 7 :(得分：0)
HTML：
<input type="text" id="address" name="address" value=""> //Autocomplete input address
<input type="hidden" name="s_latitude" id="s_latitude" value="" /> //get latitude
<input type="hidden" name="s_longitude" id="s_longitude" value="" /> //get longitude
JavaScript：
<script src="https://maps.googleapis.com/maps/api/js?key=API_KEY&libraries=places&callback=initMap"
async defer></script>
<script>
var input = document.getElementById('address');
var originLatitude = document.getElementById('s_latitude');
var originLongitude = document.getElementById('s_longitude');
var originAutocomplete = new google.maps.places.Autocomplete(input);
originAutocomplete.addListener('place_changed', function(event) {
var place = originAutocomplete.getPlace();
if (place.hasOwnProperty('place_id')) {
if (!place.geometry) {
// window.alert("Autocomplete's returned place contains no geometry");
return;
}
originLatitude.value = place.geometry.location.lat();
originLongitude.value = place.geometry.location.lng();
} else {
service.textSearch({
query: place.name
}, function(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
originLatitude.value = results[0].geometry.location.lat();
originLongitude.value = results[0].geometry.location.lng();
}
});
}
});
</script>
答案 8 :(得分：0)
到2020年末，这很容易做到。
要使geometry键显示在从位置下拉列表中选择的位置上，应使用geometry方法在Autocomplete对象实例上设置字段setFields()。 / p>
代码应如下所示。
加载API库：
<script src="https://maps.googleapis.com/maps/api/js?key=API_KEY&libraries=places&callback=initAutocomplete"
启动自动完成功能并处理所选的地点数据，通常与上述所有答案相同。但是请使用autocomplete.setFields(['geometry'])来返回坐标；
const autocomplete;
// Init the autocomplete object
function initAutocomplete() {
autocomplete = new window.google.maps.places.Autocomplete(
document.getElementById('current_location'), { types: ["geocode"] }
);
// !!! This is where you set `geometry` field to be returned with the place.
autocomplete.setFields(['address_component', 'geometry']); // <--
autocomplete.addListener("place_changed", fillInAddress);
}
// Process the address selected by user
function fillInAddress() {
const place = autocomplete.getPlace();
// Here you can get your coordinates like this
console.log(place.geometry.location.lat());
console.log(place.geometry.location.lng());
}
Autocomplete.setFields和geometry option上的Google API文档。
答案 9 :(得分：0)
<!DOCTYPE html>
<html>
<head>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=places"></script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDB1ujwvkFEo87xhHyHhHP52iJ6zMlbB_w&libraries=places&callback=initMap" async defer></script>
</head>
<body>
<input id="searchTextField" type="text" size="50" placeholder="Enter a location" autocomplete="on" runat="server" />
<input type="text" id="Lat" />
<input type="text" id="Lng" />
</body>
<script type="text/javascript">
function initialize() {
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input);
google.maps.event.addListener(autocomplete, 'place_changed', function () {
var place = autocomplete.getPlace();
document.getElementById('Lat').value = place.geometry.location.lat();
document.getElementById('Lng').value = place.geometry.location.lng();
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</html>
答案 10 :(得分：0)
YouTube 视频：https://youtu.be/8QYiGuq5LG4 这将有助于在不显示 gmap 的情况下获得纬度/经度。
<!DOCTYPE html>
<html>
<head>
<title>Place Autocomplete With Latitude & Longitude </title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
#pac-input {
background-color: #fff;
padding: 0 11px 0 13px;
width: 400px;
font-family: Roboto;
font-size: 15px;
font-weight: 300;
text-overflow: ellipsis;
}
#pac-input:focus {
border-color: #4d90fe;
margin-left: -1px;
padding-left: 14px; /* Regular padding-left + 1. */
width: 401px;
}
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=places&key=[YOUR-KEY]"></script>
<script>
function initialize() {
var address = (document.getElementById('pac-input'));
var autocomplete = new google.maps.places.Autocomplete(address);
autocomplete.setTypes(['geocode']);
google.maps.event.addListener(autocomplete, 'place_changed', function() {
var place = autocomplete.getPlace();
if (!place.geometry) {
return;
}
var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}
/*********************************************************************/
/* var address contain your autocomplete address *********************/
/* place.geometry.location.lat() && place.geometry.location.lat() ****/
/* will be used for current address latitude and longitude************/
/*********************************************************************/
document.getElementById('lat').innerHTML = place.geometry.location.lat();
document.getElementById('long').innerHTML = place.geometry.location.lng();
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<input id="pac-input" class="controls" type="text"
placeholder="Enter a location">
<div id="lat"></div>
<div id="long"></div>
</body>
</html>