Question

Openlayers 运用WFS添加到数据库一个点，怎样才能显示在页面

Answer 1

这个是官方例子：
var map, layer;
function init(){
OpenLayers.ProxyHost="/proxy/?url=";
map = new OpenLayers.Map('map');
layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );

map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0, 0), 0);

var newl = new OpenLayers.Layer.Text( "text", { location:"./textfile.txt"} );
map.addLayer(newl);

var markers = new OpenLayers.Layer.Markers( "Markers" );
map.addLayer(markers);

var size = new OpenLayers.Size(21,25);
var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
var icon = new OpenLayers.Icon('http://www.openlayers.org/dev/img/marker.png',size,offset);
markers.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(0,0),icon));

var halfIcon = icon.clone();
markers.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(0,45),halfIcon));

marker = new OpenLayers.Marker(new OpenLayers.LonLat(90,10),icon.clone());
marker.setOpacity(0.2);
marker.events.register('mousedown', marker, function(evt) { alert(this.icon.url); OpenLayers.Event.stop(evt); });