有没有一种服务或API,可以传入经度/纬度作为参数进行ping,并返回该经纬度所在的邮政编码?这仅适用于美国,因此我不必担心国际代码等问题。
我觉得Google Maps的反向地理编码对我来说太繁重了。如果可能的话,我更喜欢轻量级的东西。这将在javascript中完成。
我觉得Google Maps的反向地理编码对我来说太繁重了。如果可能的话,我更喜欢轻量级的东西。这将在javascript中完成。
它被称为反向地理编码(地址查找)。要获取纬度为40.714224,经度为-73.961452的地址,请使用参数latlng=40.714224,-73.961452&sensor=true
(例子)查询http://maps.googleapis.com/maps/api/geocode/json
,它会返回JSON对象或使用http://maps.googleapis.com/maps/api/geocode/xml
返回XML响应(例子)。这来自于谷歌且免费。
对于Google API,根据他们的网站,您需要在Google地图中使用它:
注意:Geocoding API只能与Google地图一起使用;禁止在不显示地图的情况下使用地理编码结果。
{
"postalCodes": [{
"adminCode3": "1631",
"distance": "2.2072",
"postalCode": "8775",
"countryCode": "CH",
"lng": 8.998679778165283,
"placeName": "Luchsingen",
"lat": 46.980169648620375
}]
}
//Reverse GeoCode position into Address and ZipCOde
function getZipCodeFromPosition(geocoder, map,latlng,userLocationInfoWindow) {
geocoder.geocode({'location': latlng}, function(result, status) {
if (status === 'OK') {
if (result[0]) {
console.log("GeoCode Results Found:"+JSON.stringify(result));
//Display Address
document.getElementById("address").textContent = "Address: " +result[0].formatted_address;
//Update Info Window on Server Map
userLocationInfoWindow.setPosition(latlng);
userLocationInfoWindow.setContent('<IMG BORDER="0" ALIGN="Left" SRC="https://media3.giphy.com/media/IkwH4WZWgdfpu/giphy.gif" style ="width:50px; height:50px"><h6 class ="pink-text">You Are Here</h4> <p class = "purple-text" style ="margin-left:30px;">'+result[0].formatted_address+'</p>');
userLocationInfoWindow.open(map);
map.setCenter(latlng);
//Try to Get Postal Code
var postal = null;
var city = null;
var state = null;
var country = null;
for(var i=0;i<result.length;++i){
if(result[i].types[0]=="postal_code"){
postal = result[i].long_name;
}
if(result[i].types[0]=="administrative_area_level_1"){
state = result[i].long_name;
}
if(result[i].types[0]=="locality"){
city = result[i].long_name;
}
if(result[i].types[0]=="country"){
country = result[i].long_name;
}
}
if (!postal) {
geocoder.geocode({ 'location': result[0].geometry.location }, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
//Postal Code Not found, Try to get Postal code for City
var result=results[0].address_components;
for(var i=0;i<result.length;++i){
if(result[i].types[0]=="postal_code"){
postal = result[i].long_name;
}
}
if (!postal) {
//Postal Code Not found
document.getElementById("postal").textContent = "No Postal Code Found for this location";
}else
{
//Postal Code found
document.getElementById("postal").textContent = "Zip Code: "+postal;
}
}
});
} else
{
//Postal Code found
document.getElementById("postal").textContent = "Zip Code: "+postal;
}
console.log("STATE: " + state);
console.log("CITY: " + city);
console.log("COUNTRY: " + country);
} else {
window.alert('No results found');
}
} else {
window.alert('Geocoder failed due to: ' + status);
}
});
}
</script>
//javascript function
function getZipFromLatLong() {
var url = "getzip.php";
var formData = new FormData();
formData.append("lat", current_lat);
formData.append("long", current_long);
var r = new XMLHttpRequest();
r.open("POST", url, true);
r.onreadystatechange = function () {
if (r.readyState != 4 || r.status != 200) {
return;
} else {
data = r.responseText;
var jdata = JSON.parse(data);
document.getElementById("zip").value = jdata.postalCodes[0].postalCode;
}
}
r.send(formData);
}
//getzip.php script
<?php
$lat = $_POST["lat"];
$long = $_POST["long"];
$url = "http://api.geonames.org/findNearbyPostalCodesJSON?username=demo&lat=" . $lat . "&lng=" . $long;
$content = file_get_contents($url);
//the output is json, so just return it as-is
die($content);
?>