Example of using WFS with a BBOX strategy.
This example loads new features from GeoServer WFS when the view extent changes.
<!DOCTYPE html> <html> <head> <title>WFS example</title> <script src="https://code.jquery.com/jquery-1.11.2.min.js"></script> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> <link rel="stylesheet" href="http://openlayers.org/en/3.8.1/css/ol.css" type="text/css"> <script src="http://openlayers.org/en/3.8.1/build/ol.js"></script> </head> <body> <div class="container-fluid"> <div class="row-fluid"> <div class="span12"> <div id="map" class="map"></div> </div> </div> </div> <script> // format used to parse WFS GetFeature responses var geojsonFormat = new ol.format.GeoJSON(); var vectorSource = new ol.source.Vector({ loader: function(extent, resolution, projection) { var url = 'http://demo.boundlessgeo.com/geoserver/wfs?service=WFS&' + 'version=1.1.0&request=GetFeature&typename=osm:water_areas&' + 'outputFormat=text/javascript&format_options=callback:loadFeatures' + '&srsname=EPSG:3857&bbox=' + extent.join(',') + ',EPSG:3857'; // use jsonp: false to prevent jQuery from adding the "callback" // parameter to the URL $.ajax({url: url, dataType: 'jsonp', jsonp: false}); }, strategy: ol.loadingstrategy.tile(ol.tilegrid.createXYZ({ maxZoom: 19 })) }); /** * JSONP WFS callback function. * @param {Object} response The response object. */ window.loadFeatures = function(response) { vectorSource.addFeatures(geojsonFormat.readFeatures(response)); }; var vector = new ol.layer.Vector({ source: vectorSource, style: new ol.style.Style({ stroke: new ol.style.Stroke({ color: 'rgba(0, 0, 255, 1.0)', width: 2 }) }) }); var raster = new ol.layer.Tile({ source: new ol.source.BingMaps({ imagerySet: 'Aerial', key: 'Ak-dzM4wZjSqTlzveKz5u0d4IQ4bRzVI309GxmkgSVr1ewS6iPSrOvOKhA-CJlm3' }) }); var map = new ol.Map({ layers: [raster, vector], target: document.getElementById('map'), view: new ol.View({ center: [-8908887.277395891, 5381918.072437216], maxZoom: 19, zoom: 12 }) }); </script> </body> </html>