<logic:forward name="welcome"/>

// Read points from database here.
ArrayList points = new ArrayList();
points.add(new Point("-11.95908", "-51.855469"));
points.add(new Point("-23.816841","-45.365124"));
points.add(new Point("-27.586999","-48.423014"));
// Store them on session
request.getPortletSession().setAttribute("points", points);

package googlemapshelloworld.beans;
 
public class Point {
	private String latitude;
	private String longitude;
 
	public Point(String latitude, String longitude){
		this.latitude = latitude;
		this.longitude = longitude;
	}
 
	public String getLatitude() {
		return latitude;
	}
 
	public void setLatitude(String latitude) {
		this.latitude = latitude;
	}
 
	public String getLongitude() {
		return longitude;
	}
 
	public void setLongitude(String longitude) {
		this.longitude = longitude;
	}
 
}

<script type="text/javascript" src="<%= request.getContextPath() %>/js/jquery-1.3.2.min.js"></script> 
<script type="text/javascript" src="<%= request.getContextPath() %>/js/jquery.pngFix.js"></script>
 
<script type="text/javascript"> 
    $(document).ready(function(){ 
        $(document).pngFix(); 
    }); 
</script>

<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=true_or_false&amp;key=[YOUR KEY HERE]" type="text/javascript"></script>
 
<script type="text/javascript">
setTimeout("loadMap()",1000);
 
var map;
function loadMap(){
	if (GBrowserIsCompatible()) {
		map = new GMap2(document.getElementById("map"));
		map.setCenter(new GLatLng(-11.959, -51.8554), 4);
		map.setUIToDefault();
		loadPoints();
	}
}
 
//Function loadPoints goes here.
 
</script>
 
<div id="map" style="height:500px; width:500px"></div>

function loadPoints(){ <%
	out.print("\nvar point;\nvar marker;");
	ArrayList points = (ArrayList) session.getAttribute("points");
	for (int i=0; i<points.size(); i++){
		out.println("		point = new GLatLng(" + ((Point)points.get(i)).getLatitude() + ", " + ((Point)points.get(i)).getLongitude() + ");");
		out.println("		marker = createMarker(point, 'We are here!');");
		out.println("		map.addOverlay(marker);");
	} %>
}
 
function createMarker(point, html){
	var marker = new GMarker(point);
	GEvent.addListener(marker, "click", function() { 
		marker.openInfoWindowHtml(html);
	});
	return marker;
}