高程服务没有Google API键吗？

Question

我正在尝试执行 Elevation Service 样本。我使用 google 帐户创建了一个 API 密钥，然后单击 "JAVASCRIPT + HTML" 部分底部的 "YOUR_API_KEY" link，这对我有帮助 select 来自我的应用程序的 API 密钥，然后被插入。然后我将代码和运行示例复制并粘贴到我的机器上，但是我收到以下错误：

This page was unable to display a Google Maps element. The provided Google API key is invalid or this site is not authorized to use it. Error Code: InvalidKeyOrUnauthorizedURLMapError.

有没有人使用费用 API 密钥成功执行 Google 海拔服务请求？

这是我尝试执行的代码：

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Elevation service</title>
    <style>
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
      #map {
        height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script>
function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 8,
    center: {lat: 63.333, lng: -150.5},  // Denali.
    mapTypeId: 'terrain'
  });
  var elevator = new google.maps.ElevationService;
  var infowindow = new google.maps.InfoWindow({map: map});

  // Add a listener for the click event. Display the elevation for the LatLng of
  // the click inside the infowindow.
  map.addListener('click', function(event) {
    displayLocationElevation(event.latLng, elevator, infowindow);
  });
}

function displayLocationElevation(location, elevator, infowindow) {
  // Initiate the location request
  elevator.getElevationForLocations({
    'locations': [location]
  }, function(results, status) {
    infowindow.setPosition(location);
    if (status === google.maps.ElevationStatus.OK) {
      // Retrieve the first result
      if (results[0]) {
        // Open the infowindow indicating the elevation at the clicked position.
        infowindow.setContent('The elevation at this point <br>is ' +
            results[0].elevation + ' meters.');
      } else {
        infowindow.setContent('No results found');
      }
    } else {
      infowindow.setContent('Elevation service failed due to: ' + status);
    }
  });
}

    </script>
    <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&signed_in=true&callback=initMap"
        async defer></script>
  </body>
</html>

更新：

我创建了一个浏览器密钥，现在代码可以运行了！谢谢！

Answer 1

您需要使用带有 Google Maps Javascript API v3 Elevation Service 的浏览器密钥。这就是您发布的代码中海拔服务中使用的内容。

var elevator = new google.maps.ElevationService;
// Initiate the location request
elevator.getElevationForLocations({
  'locations': [location]
}, function(results, status) {
  infowindow.setPosition(location);
  if (status === google.maps.ElevationStatus.OK) {
    // Retrieve the first result
    if (results[0]) {
      // Open the infowindow indicating the elevation at the clicked position.
      infowindow.setContent('The elevation at this point <br>is ' +
          results[0].elevation + ' meters.');
    } else {
      infowindow.setContent('No results found');
    }
  } else {
    infowindow.setContent('Elevation service failed due to: ' + status);
  }
});

working example with browser key

如果您使用 Google Maps Elevation Web Service，那么您需要一个服务器密钥。

高程服务没有Google API键吗？

Is there not a Google API Key for Elevation Service?

javascript

google-maps

google-elevation-api