This is a bit of an odd one - the fix is to remove the spaces from your
bounding box - request.setBBox("-180,-85.0511287798,180,85.011287798");
and then it works fine.
However, I'm not sure who's fault it is - TBH geotools probably should only
take a proper envelope, I can't recall what the WMS spec says about spaces
in the bbox but I suspect they are ok if you encode them (which is why it
works from the browser) so it is probably a bug that the bbox is URL
encoded before being sent.
Can you raise a bug at https://osgeo-org.atlassian.net/projects/GEOT/issues
and assign it to me - I'll try to look at it when I get a chance.
Ian
On 11 July 2017 at 13:58, Raj Hans <r.h...@simfront.com> wrote:
> Hello,
>
>
>
> I have been trying to get the WMS feature of geotools to work and am
> having difficulty with the map request. It always throws an exception. When
> I take the same URL and paste into a web browser I get the image that I am
> expecting. I have tried a few different map servers with the same result.
> Any ideas? Output and code is below.
>
> Thanks,
>
> Raj
>
>
>
>
>
> Output:
>
>
>
> java.io.IOException: Server returned HTTP response code: 400 for URL:
> http://ows.terrestris.de/osm/service?SERVICE=WMS&LAYERS=
> TOPO-OSM-WMS,TOPO-WMS,OSM-Overlay-WMS,OSM-WMS&FORMAT=
> image%2Fpng&HEIGHT=600&TRANSPARENT=TRUE&REQUEST=GetMap&BBOX=-180,
> -85.0511287798, 180, 85.011287798&WIDTH=600&STYLES=
> ,,,&SRS=EPSG:4326&VERSION=1.1.1
>
> at sun.net.www.protocol.http.HttpURLConnection.
> getInputStream0(HttpURLConnection.java:1839)
>
> at sun.net.www.protocol.http.HttpURLConnection.
> getInputStream(HttpURLConnection.java:1440)
>
> at org.geotools.data.ows.SimpleHttpClient$
> SimpleHTTPResponse.<init>(SimpleHttpClient.java:171)
>
> at org.geotools.data.ows.SimpleHttpClient.get(
> SimpleHttpClient.java:102)
>
> at org.geotools.data.ows.AbstractOpenWebService.
> internalIssueRequest(AbstractOpenWebService.java:442)
>
> at org.geotools.data.wms.WebMapServer.issueRequest(
> WebMapServer.java:439)
>
>
>
>
>
> Code:
>
>
>
> WebMapServer wms = null;
>
> try {
>
> URL url = new URL("http://ows.terrestris.de/
> osm/service?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities");
>
>
>
> wms = new WebMapServer(url);
>
>
>
> WMSCapabilities capabilities = wms.getCapabilities();
>
>
>
> String serverName = capabilities.getService().getName();
>
> String serverTitle = capabilities.getService().getTitle();
>
> System.err.println("Capabilities retrieved from server: " +
> serverName + " (" + serverTitle + ")");
>
>
>
> //Get formats for GetMap operation
>
> List<String> formats = wms.getCapabilities().
> getRequest().getGetMap().getFormats();
>
> if (formats != null) {
>
> System.err.println("Formats:");
>
> for (int i = 0; i < formats.size(); i++) {
>
> System.err.println("Format:" + formats.get(i));
>
> }
>
> }
>
>
>
> List layers = capabilities.getLayerList();
>
> if (layers != null) {
>
> for (int i = 0; i < layers.size(); i++) {
>
> System.err.println("Layer:" +
> layers.get(i).toString());
>
> }
>
> }
>
>
>
> GetMapRequest request = wms.createGetMapRequest();
>
>
>
> request.setFormat("image/png");
>
> request.setDimensions("600", "600");
>
> request.setTransparent(true);
>
> request.setSRS("EPSG:4326");
>
> request.setBBox("-180, -85.0511287798, 180, 85.011287798");
>
> System.err.println("Named Layers __________");
>
> for (org.geotools.data.ows.Layer layer :
> WMSUtils.getNamedLayers(capabilities)) {
>
> System.err.println("Layer:" + layer.getName());
>
> request.addLayer(layer);
>
> }
>
> GetMapResponse response = null;
>
> try {
>
> System.err.println(request.getFinalURL());
>
> response = (GetMapResponse) wms.issueRequest(request); ß
> THROWS EXCEPTION HERE
>
> } catch (ServiceException e) {
>
> System.err.println("Server sendet eine ServiceException: "
> + e.getMessage());
>
> }
>
> } catch (MalformedURLException ex) {
>
> Logger.getLogger(GTMapViewer.class.getName()).log(Level.SEVERE,
> null, ex);
>
> } catch (IOException ex) {
>
> Logger.getLogger(GTMapViewer.class.getName()).log(Level.SEVERE,
> null, ex);
>
> } catch (ServiceException ex) {
>
> Logger.getLogger(GTMapViewer.class.getName()).log(Level.SEVERE,
> null, ex);
>
> }
>
> ------------------------------------------------------------
> ------------------
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>
>
--
Ian Turton
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