[OpenLayers-Users] Nodelist Info / GetFeatureInfo not working
boxplot
tolpxob at googlemail.com
Mon May 10 15:14:53 EDT 2010
Hi Roald,
I made a complete new setup and found out that the enconding of one file was not the right one. Now I can use the GS example anywhere on my site and it works. But when I try to copy the code in my index.html it's not working anymore (the map is loading but after a click there is no request). So here is my code:
index.html
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
>
> <html xmlns="http://www.w3.org/1999/xhtml">
>
> <head>
> <title>Map</title>
> <link rel="stylesheet" href="style.css" type="text/css" />
>
> <script src="http://maps.google.com/maps?file=api&v=2&key=[Google API Key]"></script>
> <script src="OL/OpenLayers.js"></script>
> <script src="javascript/karte2.js" type="text/javascript"></script>
> </head>
>
> <body onload="init()">
>
> <div id="header">
> <div id="ueberschrift"><h2>Map</h2></div>
> <p id="subtitle">Map</p>
> </div>
>
> <div id="inhalt">
>
> <div id="map" class="smallmap"></div>
>
> <div id="seitenleiste">
> </div>
>
> <div id="nodelist">
> <em>Click on the map to get feature info</em>
> </div>
> </div>
> </body>
> </html>
Karte2.js
> function init(){
>
> var options = {
> controls: [],
> };
>
> var map = new OpenLayers.Map('map', options);
>
> var gphy = new OpenLayers.Layer.Google(
> "Google Physical",
> {type: G_PHYSICAL_MAP}
> );
> var gmap = new OpenLayers.Layer.Google(
> "Google Streets",
> {numZoomLevels: 20}
> );
> var ghyb = new OpenLayers.Layer.Google(
> "Google Hybrid",
> {type: G_HYBRID_MAP, numZoomLevels: 20}
> );
> var satellite = new OpenLayers.Layer.Google(
> "Google Satellite",
> {type: G_SATELLITE_MAP}
> );
> var wms = new OpenLayers.Layer.WMS(
> "My Map",
> "http://myownhomepage.xyz/geoserver/wms",
> {
> srs: 'EPSG:4326',
> layers: 'Map2:Layer',
> transparent: 'TRUE'
> },
> {
> 'reproject': true
> }
> );
>
> map.addLayers([satellite, wms, gphy, gmap, ghyb]);
> map.setCenter(new OpenLayers.LonLat(12.5000,47.5000), 15);
>
> map.addControl(new OpenLayers.Control.LayerSwitcher() );
> map.addControl(new OpenLayers.Control.Navigation());
> map.addControl(new OpenLayers.Control.MousePosition({element: $('location')}));
> map.addControl(new OpenLayers.Control.Permalink('permalink'));
> map.addControl(new OpenLayers.Control.PanZoomBar({
> position: new OpenLayers.Pixel(2, 15)
> }));
>
> map.events.register('click', map, function (e) {
> document.getElementById('nodelist').innerHTML = "Loading... please wait...";
> var params = {
> REQUEST: "GetFeatureInfo",
> EXCEPTIONS: "application/vnd.ogc.se_xml",
> BBOX: map.getExtent().toBBOX(),
> X: e.xy.x,
> Y: e.xy.y,
> INFO_FORMAT: 'text/html',
> QUERY_LAYERS: map.layers[0].params.LAYERS,
> FEATURE_COUNT: 50,
> Srs: 'EPSG:4326',
> Layers: 'Map2:Layer',
> Styles: '',
> WIDTH: map.size.w,
> HEIGHT: map.size.h,
> format: format};
> OpenLayers.loadURL("http://myownhomepage.xyz/geoserver/wms", params, this, setHTML, setHTML);
> OpenLayers.Event.stop(e);
> });
> }
> function setHTML(response){
> document.getElementById('nodelist').innerHTML = response.responseText;
> };
It is strange now but there is no request in Firebug. When I click on the map the text switches to "Loading please wait" and that's it. Maybe the problem is because of the different layers?
Thank you very much for your help!
Pascal
Am 10.05.2010 um 00:06 schrieb Roald de Wit:
> Hi Pascal,
>
> You should pretty much always get at least *something* back: either an error or an empty reponse (FireBug would tell you). Have you really got ":80" in your settings like below?
>
> OpenLayers.loadURL("http://myownhomepage.xyz:80/geoserver/wms", params, this, setHTML, setHTML);
>
> If your Tomcat runs on port 80 then you can leave out the port number. That might do the trick (and yes, it would then have been a proxy issue). Like this:
>
> OpenLayers.loadURL("http://myownhomepage.xyz/geoserver/wms <http://myownhomepage.xyz:80/geoserver/wms>", params, this, setHTML, setHTML);
>
> And since your OL is on the same server as your GS, you could even do this:
>
> OpenLayers.loadURL("/geoserver/wms <http://myownhomepage.xyz:80/geoserver/wms>", params, this, setHTML, setHTML);
>
> And to deal with errors in your AJAX request, why not use a separate function like this:
>
> OpenLayers.loadURL("/geoserver/wms <http://myownhomepage.xyz:80/geoserver/wms>", params, this, setHTML, *onAjaxError*);
>
> Regards, Roald
>
> On 10/05/10 05:45, boxplot wrote:
>> Hi,
>>
>> maybe a made a small progress. As I have written in my last mail I get no response when using GetFeatureInfo (I do get a response when using the GeoServer OpenLayers example which I can access through "Layer Preview" => see code below). So I copied both requests directly into my browser and both got a response:
>>
>>> http://myownhomepage.xyz/geoserver/wms?REQUEST=GetFeatureInfo&EXCEPTIONS=application%2Fvnd.ogc.se_xml&BBOX=12.327023%2C47.673%2C12.362977%2C47.777&X=79&Y=375&INFO_FORMAT=text%2Fhtml&QUERY_LAYERS=Workspace%3ALayer&FEATURE_COUNT=50&Srs=EPSG%3A4326&Layers=Workspace%3ALayer&Styles=&WIDTH=177&HEIGHT=512&format=image%2Fpng <http://myownhomepage.xyz/geoserver/wms?REQUEST=GetFeatureInfo&EXCEPTIONS=application%2Fvnd.ogc.se_xml&BBOX=12.327023%2C47.673%2C12.362977%2C47.777&X=79&Y=375&INFO_FORMAT=text%2Fhtml&QUERY_LAYERS=Workspace%3ALayer&FEATURE_COUNT=50&Srs=EPSG%3A4326&Layers=Workspace%3ALayer&Styles=&WIDTH=177&HEIGHT=512&format=image%2Fpng>
>>
>> GeoServer runs as a .war within Tomcat and OpenLayers is on the same server. I really can't believe why the same code with the same request on the same server is once getting a response and the other time it is not. Is there a possibility that it is a proxy-issue or maybe a problem with the encoding?
>>
>> Thanks, Pascal
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