首先，自然是加載一個地圖服務了，利用的是官方示例代碼，加載一個ArcGIS地圖服務，示例如下：
<!DOCTYPE html>
<html>
<head>
<title>Tiled ArcGIS MapServer</title>
<link rel="stylesheet" href="http://openlayers.org/en/v3.17.1/css/ol.css" type="text/css">
<script src="http://openlayers.org/en/v3.17.1/build/ol.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<script>
var url = 'http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/' +
'Specialty/ESRI_StateCityHighway_USA/MapServer';
var layers = [
new ol.layer.Tile({
source: new ol.source.OSM()
}),
new ol.layer.Tile({
extent: [-13884991, 2870341, -7455066, 6338219],
source: new ol.source.TileArcGISRest({
url: url
})
})
];
var map = new ol.Map({
layers: layers,
target: 'map',
view: new ol.View({
center: [-10997148, 4569099],
zoom: 4
})
});
</script>
</body>
</html>
