我正在使用 Google Maps API 指南进行自动完成：
https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete-addressform
但似乎无法检测到意大利各省。
例如：输入意大利地址“Caronno Pertusella, VA, Italia”，我无法检测到“VA”。
我尝试添加和更改参数：https://developers.google.com/maps/documentation/javascript/geocoding
但是我找不到省份参数。
【问题讨论】：
标签： jquery google-maps google-maps-api-3 autocomplete
这本来可以更容易。我认为您正在寻找administration_area_level_2。因为这个级别因国家/地区而异，您必须测试，哪个级别适合您的需要。附加了一个带有管理性区域级别_2（'short_name'）的示例。莱因哈德，你可以玩一点儿
<!DOCTYPE html>
<html>
<head>
<title>Place Autocomplete Address Form</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<style>
#locationField, #controls {
position: relative;
width: 480px;
}
#autocomplete {
position: absolute;
top: 0px;
left: 0px;
width: 99%;
}
.label {
text-align: right;
font-weight: bold;
width: 100px;
color: #303030;
}
#address {
border: 1px solid #000090;
background-color: #f0f0ff;
width: 480px;
padding-right: 2px;
}
#address td {
font-size: 10pt;
}
.field {
width: 99%;
}
.slimField {
width: 80px;
}
.wideField {
width: 200px;
}
#locationField {
height: 20px;
margin-bottom: 2px;
}
</style>
</head>
<body>
<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="wideField" colspan="2"><input class="field" id="route"
disabled="true"></input></td>
</tr>
<tr>
<td class="label">City</td>
<!-- Note: Selection of address components in this example is typical.
You may need to adjust it for the locations relevant to your app. See
https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete-addressform
-->
<td class="wideField" colspan="3"><input class="field" id="locality"
disabled="true"></input></td>
</tr>
<tr>
<td class="label">Region</td>
<td class="slimField"><input class="field"
id="administrative_area_level_2" disabled="true"></input></td>
<td class="label">Zip code</td>
<td class="wideField"><input class="field" id="postal_code"
disabled="true"></input></td>
</tr>
<tr>
<td class="label">State</td>
<td class="wideField" colspan="3"><input class="field"
id="administrative_area_level_1" disabled="true"></input></td>
</tr>
<tr>
<td class="label">Country</td>
<td class="wideField" colspan="3"><input class="field"
id="country" disabled="true"></input></td>
</tr>
</table>
<script>
// This example displays an address form, using the autocomplete feature
// of the Google Places API to help users fill in the information.
// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
administrative_area_level_2: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
function initAutocomplete() {
// Create the autocomplete object, restricting the search to geographical
// location types.
autocomplete = new google.maps.places.Autocomplete(
/** @type {!HTMLInputElement} */(document.getElementById('autocomplete')),
{types: ['geocode']});
// When the user selects an address from the dropdown, populate the address
// fields in the form.
autocomplete.addListener('place_changed', fillInAddress);
}
function fillInAddress() {
// Get the place details from the autocomplete object.
var place = autocomplete.getPlace();
for (var component in componentForm) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
// Get each component of the address from the place details
// and fill the corresponding field on the form.
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;
}
}
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?&libraries=places&callback=initAutocomplete"
async defer></script>
</body>
</html>【讨论】：
如果您搜索：“Caronno Pertusella VA, Italia”= 在 VA 之前没有逗号，您会得到它。 “Caronno Pertusella VA，它”也将起作用。在城市逗号之后，自动完成等待国家或国家代码。
顺便问一下，你为什么不直接选择自动完成的建议之一呢？如果您输入“Caronno”，您会得到建议：“Caronno Pertusella Varese, Italia”
【讨论】：