Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.another.extension.portlet; import com.liferay.portal.kernel.portlet.PortletResponseUtil; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet; import com.liferay.sample.portlet.service.PingPongService; import java.io.IOException; import javax.portlet.Portlet; import javax.portlet.PortletException; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Marcellus Tavares */ @Component(immediate = true, property = { "com.liferay.portlet.display-category=category.sample", "com.liferay.portlet.instanceable=true", "javax.portlet.display-name=another_sample_portlet", "javax.portlet.init-param.template-path=/", "javax.portlet.init-param.view-template=/view.jsp", "javax.portlet.name=another_sample_portlet", "javax.portlet.resource-bundle=content.Language", "javax.portlet.security-role-ref=power-user,user" }, service = Portlet.class) public class AnotherSamplePortlet extends MVCPortlet { @Override public void render(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException { PortletResponseUtil.write(renderResponse, pingPongService.ping()); } @Reference private PingPongService pingPongService; }