Adding WFS layer with OpenLayers

Question

I'm trying to add one of the included datasets with geoserver to an openlayers map. I've followed the opengeo tutorials, seen similar thread on here, but I can't seem to crack it. Can somebody take a glance at my code and geoserver setup and tell me where i'm going wrong?

Here's my code:

            //WMS map
            world = new OpenLayers.Layer.WMS("Global Imagery", "http://maps.opengeo.org/geowebcache/service/wms", {
                layers : "openstreetmap",
                format : "image/png"
            });
            map.addLayer(world);

            //WFS
            parks = new OpenLayers.Layer.Vector("WFS", {
                strategies : [new OpenLayers.Strategy.BBOX()],
                protocol : new OpenLayers.Protocol.WFS({
                    url : "http://localhost:8081/geoserver/wfs",
                    featureType : "medford:parks",
                    featureNS : "http://medford.opengeo.org/medford"
                })
            });

            map.addLayer(parks);

            map.zoomToMaxExtent();

GeoServer details: workspace name = medford, Namespace URI = http://medford.opengeo.org For the feature type I have tried "parks" and "medford:parks"

The layer is enabled, advertised and has a 30 feature return limit.

I'm struggling to put a simple map together

Thanks, James

olly_uk olly_uk · Accepted Answer · 2012-01-20T10:07:20

Firstly could you give some more info about any errors that are occuring by using a debugging tool like firebug. my first guess would be that the geoserver instance is not running on the same domain (this includes a different port on the same domain) and requests to the server are being blocked by the cross-site scripting restrictions.

If this is the case OpenLayers comes with some example CGI proxy scripts to allow you to proxy the call to geoserver. have a look here for more info.

hope that helps, if not maybe post some more info relating to any errors you see.

Adding WFS layer with OpenLayers

1 Answers