Generate WMS GetFeatureInfo URL manually

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I am going to use wms getfeatureinfo to get information of a layer without any liberary..

In fact I am using Android and Could not find anything to do that for me,So I have to get information from a manually generated URL.

I have seen WMS refrence and could find requiered parameters to request from geoserver.Here is the refrence I tried to build an example url for a feature that is located in position of

7547018.12374 -3645681.16486 in

ESPG 3857 My layer name is Hazardoint_4326 and I set the bbox and height and width as

bbox=-2.002637639E7,-2.00489661E7,2.002637639E7,2.00489661E7&width=767&height=768 but It gives me

no features were found I think the problem is with setting bbox..Here is the url that I used

http://151.80.201.170/geoserver/Hazard/wms?request=GetFeatureInfo&service=WMS&version=1.1.1&layers=Hazardoint_4326&styles=&srs=EPSG%3A3875&format=image%2Fpng&bbox=-2.002637639E7,-2.00489661E7,2.002637639E7,2.00489661E7&width=767&height=768&query_layers=Hazardoint_4326&info_format=text%2Fplain&feature_count=50&x=0&y=0&exceptions=application%2Fvnd.ogc.se_xmland this is working openlayer url

Can you please help me find out where I am doing wrong?thank you so much



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