EC2具有开放层3的开放街道地图服务器

晚上好:

我想用开放层3连接到我的EC2开放街道地图服务器。

http://ec2-34-240-39-198.eu-west-1.compute.amazonaws.com/openlayers-example.html

但是,如果显示源代码(Ctrl-U),则我的代码不会显示地址:

var newL = new OpenLayers.Layer.OSM("Default", "/osm_tiles/${z}/${x}/${y}.png", {numZoomLevels: 19});

这是我的代码:

var map = new ol.Map({
          target: 'map', 
          renderer: 'canvas', 
          layers: [
             new ol.layer.Tile({
                 source: new ol.source.OSM({
                   crossOrigin: null,
                   url: 'http://ec2-34-240-39-198.eu-west-1.compute.amazonaws.com/osm_tiles/${z}/${x}/${y}.png',
                    }),
                 }),
                vectorLayer,
           ],
 // Create a view centered on the specified location and zoom level
 view: new ol.View({
         center: ol.proj.transform([2.1833, 41.3833], 'EPSG:4326', 'EPSG:3857'),
         zoom: 3
         }),
       interactions: ol.interaction.defaults().extend([
         new ol.interaction.DragRotateAndZoom()
          ])
        });