嗨，我从谷歌地图开发者网站上得到了这个代码。在这段代码中，它将使用Google API自动填充地址并完成地址表单。现在我想从地址获取'location'值和'placeId'。我怎样才能拿到呢?
<head>
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true&libraries=places"></script>
<script>
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
function initialize() {
autocomplete = new google.maps.places.Autocomplete(
(document.getElementById('autocomplete')),
{ types: ['geocode'] });
google.maps.event.addListener(autocomplete, 'place_changed', function() {
fillInAddress();
});
}
function fillInAddress() {
var place = autocomplete.getPlace();
for (var component in componentForm) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
document.getElementById(addressType).value = val;
} } }
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(
position.coords.latitude, position.coords.longitude);
var circle = new google.maps.Circle({
center: geolocation,
radius: position.coords.accuracy
});
autocomplete.setBounds(circle.getBounds());
});
}
}
</script>
</head>
<body onload="initialize()">
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address"
onFocus="geolocate()" type="text"></input>
</div>
<table id="address">
<tr>
<td class="label">Street address</td>
<td class="slimField"><input class="field" id="street_number"
disabled="true"></input></td>
.......
<td class="label">Country</td>
<td class="wideField" colspan="3"><input class="field"
id="country" disabled="true"></input></td>
</tr>
</table>
</body>
</html>
看第27行。
还看第33和42行:if(document.getElementById(component))…否则，如果组件丢失，脚本将抛出错误(您没有发布所有;我假定您拥有所有组件，但这仍然是一个好主意)。
<html>
<head>
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true&libraries=places"></script>
<script>
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
function initialize() {
autocomplete = new google.maps.places.Autocomplete(
document.getElementById('autocomplete'),
{ types: ['geocode']}
);
google.maps.event.addListener(autocomplete, 'place_changed', function() {
fillInAddress();
});
}
function fillInAddress() {
var place = autocomplete.getPlace();
// location & place_id
var location = place.geometry.location;
var place_id = place.place_id;
document.getElementById('log').innerHTML += 'location: ' + location.lat() + ',' + location.lng() + ' - place ID: ' + place_id + '<br>';
for (var component in componentForm) {
if(document.getElementById(component)) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
}
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
if(document.getElementById(addressType)) {
document.getElementById(addressType).value = val;
}
}
}
}
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
var circle = new google.maps.Circle({
center: geolocation,
radius: position.coords.accuracy
});
autocomplete.setBounds(circle.getBounds());
});
}
}
</script>
</head>
<body onload="initialize()">
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text"></input>
</div>
<table id="address">
<tr>
<td class="label">Street address</td>
<td class="slimField"><input class="field" id="street_number" disabled="true"></input></td>
<td class="label">Country</td>
<td class="wideField" colspan="3"><input class="field" id="country" disabled="true"></input></td>
</tr>
</table>
<div id="log"></div>
</body>
</html>