Handling GET and POST request in wicket

Checking the Request is GET or Post

final HttpServletRequest request = (HttpServletRequest) getRequest().getContainerRequest();
   if (request.getMethod().equalsIgnoreCase("POST")){
// handle Post Request
} else {
// handle Get Request
}


//Access the Get Parameters

// pageParameters object will get in Constructor

if(pageParameters.getNamedKeys().contains("parameterName")&& parameters.get("parameterName") != null)
{
       value= parameters.get("parameterName").toString();
}

//Access the Post Parameters

IRequestParameters requestParameters = getRequest().getPostParameters();
if (requestParameters != null && requestParameters.getParameterNames().contains( "parameterName" )
     & requestParameters.getParameterValue( "parameterName" ) != null){
        value = requestParameters.getParameterValue( "parameterName" ).toString();
}