java - FreeMarker : Displaying a custom 404 page without redirection -

i have static 404 page fancy stuff in it. in case user enters wrong url of page not exist, him see 404 page , keep url in order user see mistake s/he has done typing url .

the page entered , not exist : http://localhost:10039/my.website/my/halp.html

the 404 page : http://localhost:10039/my.website/my/notfound.html

briefly, instead of using "sendredirect" here, "get content" of pagenotfoundurl , show while url still http://localhost:10039/my.website/my/halp.html

instead of redirect, tried "forward" kayaman suggested in case " cannot forward. response committed."

testservlet defined in web.xml , , class extends utilfreemarkerservlet extends freemarkerservlet.

utilfreemarkerservlet

public abstract class utilfreemarkerservlet extends freemarkerservlet {     private static final long serialversionuid = 1l;      public static final string request_object_name = "requestobject";      private logger logger = loggerfactory.getlogger(getclass());      @override     public void init() throws servletexception {         logger.info("init started");         super.init();         configuration cfg = getconfiguration();         cfg.setlocalizedlookup(false);      }      @override     protected objectwrapper createobjectwrapper() {         return objectwrapper.beans_wrapper;     }      @override     protected httprequestparametershashmodel createrequestparametershashmodel(httpservletrequest request) {         request.setattribute(request_object_name, request);         return super.createrequestparametershashmodel(request);     }     } 

testservlet

public class testservlet extends utilfreemarkerservlet{     private static final long serialversionuid = 1l;         private string website;      @override     public void init(servletconfig config) throws servletexception {         super.init(config);     }      @override     protected void service(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {              super.service(req, resp);                boolean handleresult = handlerforrequest(req, resp);                 }      protected boolean handlerforrequest(httpservletrequest req, httpservletresponse resp) throws servletexception, ioexception {          if (resp.getstatus() == 404) {             string pagenotfoundurl = "http://localhost:10039/my.website/my/notfound.html";                       requestdispatcher rd = req.getrequestdispatcher(url);             rd.forward(req, resp);             // resp.sendredirect(url);         }          return true;     }  } 

do forward instead of redirect wanted resource, , url stay same.

requestdispatcher rd = request.getrequestdispatcher("my_404.html"); rd.forward(request, response);