Finding a way to retrieve WFS at a later time using GeoExt can be

Could you assist me with setting up WFS on GEOExt? I have gone through a tutorial and found this code snippet.

proxy: new GeoExt.data.ProtocolProxy({
    protocol: new OpenLayers.Protocol.WFS({
        url: "/geoserver/ows",
        version: "1.1.0",
        featureType: "parks",
        featureNS: "http://medford.opengeo.org",
        srsName: "EPSG:4326"
    })
})

Following this, I encountered the line: 

var vectorLayer = new OpenLayers.Layer.Vector("Editable features");
However, I am unsure how to create a layer. This has raised some questions for me:
1. How do I obtain the URL to access WFS? (I am using Geoserver)
2. What does the featureType option signify?
3. Most importantly, is this code accurate? I came across it here:

javascript

Answer №1

Hopefully this solution will benefit someone

             //WFS
                        var myStyle = OpenLayers.Util.extend({},
                            OpenLayers.Feature.Vector.style['default']);
                        myStyle.strokeWidth = 1.5;
                        myStyle.strokeColor = "#ff0000";
                        myStyle.fillOpacity = 0.1;
                        OpenLayers.ProxyHost = "proxy.cgi?url=";
                        var renderer = OpenLayers.Util.getParameters(window.location.href).renderer;
                        renderer = (renderer) ? [renderer] : OpenLayers.Layer.Vector.prototype.renderers;           
                        myVecLayer = new OpenLayers.Layer.Vector("Editable Area", {
                            strategies: [new OpenLayers.Strategy.BBOX(), new OpenLayers.Strategy.Save()],
                            style: myStyle,
                            protocol: new OpenLayers.Protocol.WFS({
                                version: "1.0.0",
                                srsName:"EPSG:900913",
                                url: "http://localhost:8080/geoserver/wfs",
                                featureType: "filedata",
                                featureNS: "http://www.opengeospatial.net/cite"
                            }),
                            renderers: renderer
                        })  
                        app.mapPanel.map.addLayers([myVecLayer]);

featureType refers to the name of the layer in geoserver
featureType indicates the path to the workspace (also accessible in geoserver)

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