[OpenLayers-Users] json respose to a wms get feature info
Hugo
hfpmartins at gmail.com
Tue Jun 8 09:09:47 EDT 2010
Hello again,
as you can see in your request the output format of your request is
INFO_FORMAT=text%2Fhtml<http://10.0.80.41:7004/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Anetworkcoverage&QUERY_LAYERS=topp%3Anetworkcoverage&STYLES=&BBOX=72.96062%2C33.634027%2C73.097949%2C33.737024&FEATURE_COUNT=10&HEIGHT=600&WIDTH=800&FORMAT=image%2Fgif&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=130&Y=208>.
To get the info in json format you just need to make a template which will
return text/html but formatted in the JSON way. You'll need to put this
template in the folder of your layer inside data_dir folder of geoserver.
After that, you'll have your response in JSON.
This is my experience and i don't know if you have another way of achieving
what you are trying to achieve. I've been working with Geoserver 1.7.6 and
so i really don't know if more recent release have other options to do this.
Cheers,
Hugo
On Tue, Jun 8, 2010 at 1:59 PM, Imran Rajjad <rajjad at gmail.com> wrote:
> Hi,
>
> thanks for your reply, actually I had the json response working with
> geoserver in my previous client , which did not use any API , since
> now I`m using Openlayers. I made this wmsgetfeatureInfo object. Fire
> Bug shows a url like
>
>
> http://10.0.80.41:7004/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Anetworkcoverage&QUERY_LAYERS=topp%3Anetworkcoverage&STYLES=&BBOX=72.96062%2C33.634027%2C73.097949%2C33.737024&FEATURE_COUNT=10&HEIGHT=600&WIDTH=800&FORMAT=image%2Fgif&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=130&Y=208
>
> when i copy paste this url seperately in a browser I get the response.
> I have gone through the docs. There is no example on how to query a
> wms layer with Json response. Do I need to specify some function in
> wmsgetfeatureinfo where the response should be received. However I
> will check this links, thanks a lot
>
> regards,
> Imran
>
> On Tue, Jun 8, 2010 at 5:54 PM, Hugo <hfpmartins at gmail.com> wrote:
> > Hello Imran,
> >
> > The problem you are facing has nothing to do with openlayers, it is
> though
> > related with geoserver. I'm not sure if current releases of geoserver
> > already present the json output format but you can always program a
> template
> > to return your results in json format. Check the following sites and if
> you
> > have further questions i think you'll have better chances of getting an
> > answer to this problem in the geoserver list.
> >
> > http://geoserver.org/display/GEOSDOC/GetFeatureInfo+templates
> > http://geoserver.org/display/GEOSDOC/Freemarker+templates
> >
> http://docs.geoserver.org/stable/en/user/googleearth/tutorials/kmlplacemark/index.html
> > http://freemarker.sourceforge.net/docs/index.html
> >
> > Hope this can help.
> > Cheers,
> >
> > Hugo Martins
> >
> > On Tue, Jun 8, 2010 at 1:42 PM, Imran Rajjad <rajjad at gmail.com> wrote:
> >>
> >> firebug is showing the following request parameters
> >>
> >> BBOX 72.925254,33.54194,73.199912,33.747933
> >> FEATURE_COUNT 10
> >> FORMAT image/gif
> >> HEIGHT 600
> >> INFO_FORMAT text/html
> >> LAYERS topp:networkcoverage
> >> QUERY_LAYERS topp:networkcoverage
> >> REQUEST GetFeatureInfo
> >> SERVICE WMS
> >> SRS EPSG:4326
> >> STYLES
> >> VERSION 1.1.1
> >> WIDTH 800
> >> X 690
> >> Y 295
> >>
> >> On Tue, Jun 8, 2010 at 5:18 PM, Imran Rajjad <rajjad at gmail.com> wrote:
> >> > Hi ,
> >> >
> >> > my WMSGetFeatureInfo control is not returning any json,, my code is as
> >> > below
> >> >
> >> > basicControl = {
> >> > click : new OpenLayers.Control.WMSGetFeatureInfo({
> >> > url: 'http://10.0.80.41:7004/geoserver/wms',
> >> > title: 'Identify features by clicking',
> >> > layers: [network_wms],
> >> > queryVisible: true,
> >> > vendorParams: {
> >> > version: "1.1.1",
> >> > info_format: "text/plain",
> >> > },
> >> > format : new OpenLayers.Format.GeoJSON()})
> >> > };
> >> >
> >> >
> >> > basicControl.click.events.register("getfeatureinfo",
> >> > this, showInfo);
> >> > map.addControl(basicControl.click);
> >> >
> >> > function showInfo(evt) {
> >> > alert(evt); //
> >> > }
> >> >
> >> >
> >> > when I check in FireBug. the request is sent but there is no
> >> > responseTexT, what am i doing wrong here
> >> >
> >> > regards,
> >> > Imran
> >> >
> >> >
> >> > On Tue, Jun 8, 2010 at 1:20 PM, Imran Rajjad <rajjad at gmail.com>
> wrote:
> >> >> Hi,
> >> >>
> >> >> I`m trying to create a box selection that selects features from a wms
> >> >> overlay , I need the response to be in JSON and I also want to append
> >> >> my cql filter to this request.
> >> >>
> >> >> Can anyone point me to the documentation closer to this task?
> >> >>
> >> >> regarsd,
> >> >> Imran
> >> >>
> >> >> --
> >> >> I.R
> >> >>
> >> >
> >> >
> >> >
> >> > --
> >> > I.R
> >> >
> >>
> >>
> >>
> >> --
> >> I.R
> >> _______________________________________________
> >> Users mailing list
> >> Users at openlayers.org
> >> http://openlayers.org/mailman/listinfo/users
> >
> >
> >
> > --
> > Hugo Martins
> > FMV-UTL
> > CIISA-Epidemiologia e Saúde Pública Veterinária
> > Av. da Universidade Técnica
> > 1300-477 Lisboa
> > N 38°42'49.54", W 9°11'43.42"
> >
>
>
>
> --
> I.R
>
--
Hugo Martins
FMV-UTL
CIISA-Epidemiologia e Saúde Pública Veterinária
Av. da Universidade Técnica
1300-477 Lisboa
N 38°42'49.54", W 9°11'43.42"
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