As this is in javax.portlet.ActionResponse, the deprecation is part of the new Portlet API 3.0, JSR 362. See the specification, or its javadoc (I found the first one here to a (new) superclass of ActionResponse)

Hi, I am new to liferay so may i know what function should i used to achive things, which we were using liferay 7. 

    @SuppressWarnings("deprecation")
    public void addBatch(ActionRequest actionrequest, ActionResponse actionresponse) throws IOException, PortalException {
        ServiceContext serviceContext = ServiceContextFactory.getInstance(Batch.class.getName(),actionrequest);
        String name = ParamUtil.getString(actionrequest, "batchname");
        String city = ParamUtil.getString(actionrequest, "batchcity");
        long id = Long.valueOf((ParamUtil.getString(actionrequest, "groupId")));
        BatchLocalServiceUtil.create_Batch(id, name, city, serviceContext);
        actionresponse.setRenderParameter( "mvcPath", "/batch_view.jsp");
   

I am calling this addBatch from front end using action url, now i want to render to a specific page after doing some database operation, may i know how to do that

Hi Manoi,

You can do it in following way

response.getRenderParameters().setValue("mvcPath", "view.jsp");

response.getRenderParameters().setValue("param name", "param value");