[mapserver-users] C# mapscripts and WFS Service , xml-encoded Post Request with openlayers

[Fuming Li]

Hi, I 'm currently deploying a WFS Server with C# mapscripts.  The 
Request issued by openlayers is xml-encoded post request.

When I 
tried to use "loadparam", it exited abnormally.  So I had to parse 
parameter by myself.  So my question is: do I have to parse the 
xml-encoded post request manually?

is there a function I can use to 
parse the post request?



WFS Service：



public class MapWFS : IHttpHandler {

   

    public void ProcessRequest 
(HttpContext context) {

        try

        {

            OWSRequest req = 
new OWSRequest();



            
System.Collections.Specialized.NameValueCollection queryStr = 
context.Request.Params;



            
//req.loadParams();  can't call this function, it will exit immediately.

            
req.setParameter("service", "WFS");

            
req.setParameter("version", "1.0.0");

            
req.setParameter("request", "getFeature");

 

            for (int i = 0; i 
< queryStr.Count; ++i)

            {

                
req.setParameter(queryStr.GetKey(i), queryStr.Get(i));

           }

            

            string mapFileName =
 ConfigurationManager.AppSettings["MapFilePath"];

            mapObj map = new 
mapObj(context.Server.MapPath(mapFileName));

    ...

            

            
mapscript.msIO_installStdoutToBuffer();



            
map.OWSDispatch(req);



            
context.Response.ContentType = 
mapscript.msIO_stripStdoutBufferContentType();

            
context.Response.BinaryWrite(mapscript.msIO_getStdoutBufferBytes());

            
mapscript.msIO_resetHandlers();



OpenLayers：

            var wfs = new 
OpenLayers.Layer.Vector("WFSCELL", {

                    strategies:
 [new OpenLayers.Strategy.BBOX()],

                    
isBaseLayer: true,

                    styleMap: 
styleMap,

                    service: 
wfs,

                    Version: 
"1.0.0",

                    
TypeName:"cell",

                    protocol: 
new OpenLayers.Protocol.WFS({

                        url: 
"MapWFS.ashx",

                        
featureType: "cell",

                        
featurePrefix: "cs" ,

                        
featureNS: "http://www.openplans.org/topp",

                        
geometryName: 'msGeometry'





                    })

                });

        wfs.isBaseLayer = true;

        map.addLayer(wfs);





content of the post-request:

  

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" 
service="WFS" version="1.0.0" 
xsi:schemaLocation="http://www.opengis.net/wfs 
http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

    <wfs:Query typeName="cs:cell" 
xmlns:cosunet="http://www.openplans.org/topp">

          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">

               <ogc:BBOX>

                   
<ogc:PropertyName>msGeometry</ogc:PropertyName>

                   <gml:Box xmlns:gml="http://www.opengis.net/gml" 
srsName="EPSG:4326"><gml:coordinates decimal="." cs="," ts=" 
">110.298828125,28.1875 
127.701171875,33.8125</gml:coordinates></gml:Box>

               </ogc:BBOX>

          </ogc:Filter>

</wfs:Query>

  

  

  

</wfs:GetFeature>



From: wingicelee at hotmail.com
To: mapserver-users at lists.osgeo.org
Date: Thu, 9 Sep 2010 00:44:30 +0000
Subject: [mapserver-users] C# mapscripts and WFS Service , xml-encoded Post Request with openlayers








Hi, I 'm currently deploying a WFS Server with C# mapscripts.  The Request issued by openlayers is xml-encoded post request.
When I tried to use "loadparam", it exited abnormally.  So I had to parse parameter by myself.  So my question is: do I have to parse the xml-encoded post request manually?
is there a function I can use to parse the post request?


Thanks and Best Request,
William

 		 	   		  

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