我几乎得到它,但它并不完全有效。我正在尝试通过 ajax 加载内容,它确实加载了正确的内容,我可以看到它在 firebug 中加载,但是它给了我一个错误:未定义信息窗口。我有一些不合适的地方load_content
在 load_content 加载一个带有一些文本的小窗口之前,这两行注释掉了。
function initialize() {
  var myLatlng = new google.maps.LatLng(<%= @location_for_map.average(:lat) %>, <%= @location_for_map.average(:lng) %>);
  var myOptions = {
   zoom: 13,
   center: myLatlng,
   mapTypeControl: false,
   navigationControl: true,
   navigationControlOptions: {
    style: google.maps.NavigationControlStyle.SMALL
   },
     mapTypeId: google.maps.MapTypeId.ROADMAP
   }
  var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
  //var infowindow = new google.maps.InfoWindow();
  setMarkers(map, places);
 }
 function setMarkers(map, locations) {
   // Add markers to the map
  for (var i = 0; i < locations.length; i++) {
      var place = locations[i];
      var myLatLng = new google.maps.LatLng(place.lat, place.lng);
      var marker = new google.maps.Marker({
          position: myLatLng,
          map: map,
          icon: '/images/google_maps/numbers/'+(i+1)+'.png',
    html: place.name,
    id: place.id,
          title: place.name
      });
   var infowindow = new google.maps.InfoWindow();
   google.maps.event.addListener(marker, 'click', function() {
     //infowindow.setContent(this.html);
     //infowindow.open(map,this);
     load_content(marker, this.id);
   });
  }
 }
 function load_content(marker, id){
   $.ajax({
     url: '/places/' + id + '.js',
     success: function(data){
       infowindow.setContent(data);
       infowindow.open(map, marker);
     }
   });
 } 
 function loadScript() {
     var script = document.createElement("script");
     script.type = "text/javascript";
     script.src = "http://maps.google.com/maps/api/js?sensor=false&callback=initialize";
     document.body.appendChild(script);
 }