抓取国家从谷歌地理代码jquery

Grabbing country from google geocode jquery

本文关键字：代码 jquery 谷歌 国家 抓取      更新时间：2023-09-26

我已经帮助得到一个jquery脚本，将地理编码一个键入的位置通过谷歌地理编码系统。

我需要国家值的short_name放入国家字段。无论如何，我都不知道该如何积分，我所尝试的一切都没有返回值。谁能给一些见解，以实现这一正确的方式，请?

JSFIDDLE: http://jsfiddle.net/spadez/jCB4s/2/

$(function () {
  var input = $("#loc"),
      lat   = $("#lat"),
      lng   = $("#lng"),
      lastQuery  = null,
      lastResult = null, // new!
      autocomplete;
  function processLocation(callback) { // accept a callback argument
    var query = $.trim(input.val()),
        geocoder;
    // if query is empty or the same as last time...
    if( !query || query == lastQuery ) {
      callback(lastResult); // send the same result as before
      return; // and stop here
    }
    lastQuery = query; // store for next time
    geocoder = new google.maps.Geocoder();
    geocoder.geocode({ address: query }, function(results, status) {
      if( status === google.maps.GeocoderStatus.OK ) {
        lat.val(results[0].geometry.location.lat());
        lng.val(results[0].geometry.location.lng());
        lastResult = true; // success!
      } else {
        alert("Sorry - We couldn't find this location. Please try an alternative");
        lastResult = false; // failure!
      }
      callback(lastResult); // send the result back
    });
  }
  autocomplete = new google.maps.places.Autocomplete(input[0], {
    types: ["geocode"],
    componentRestrictions: {
      country: "uk"
    }
  });
  google.maps.event.addListener(autocomplete, 'place_changed', processLocation);
  $('#searchform').on('submit', function (event) {
    var form = this;
    event.preventDefault(); // stop the submission
    processLocation(function (success) {
      if( success ) { // if the geocoding succeeded, submit the form
        form.submit()
      }
    });
  });
});

根据API，我需要这个:

results[]: {
 types[]: string,
 formatted_address: string,
 address_components[]: {
   short_name: string,
   long_name: string,
   types[]: string
 },
 geometry: {
   location: LatLng,
   location_type: GeocoderLocationType
   viewport: LatLngBounds,
   bounds: LatLngBounds
 }
}

解析结果，查找类型为"country"的

查找类型为"postal_code"的结果的示例

像这样的东西应该可以工作(未测试):

geocoder.geocode({ address: query }, function(results, status) {
  if( status === google.maps.GeocoderStatus.OK ) {
    lat.val(results[0].geometry.location.lat());
    lng.val(results[0].geometry.location.lng());
    var address = results[0].address_components;
    for (var p = address.length-1; p >= 0; p--) {
      if (address[p].types.indexOf("country") != -1) {
      // do something useful with the country...
      // document.getElementById('postcode').innerHTML= address[p].long_name;
      }
    }
    lastResult = true; // success!
  } else {
    alert("Sorry - We couldn't find this location. Please try an alternative");
    lastResult = false; // failure!
  }
  callback(lastResult); // send the result back
});
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