1 /* 2 * JBoss, Home of Professional Open Source 3 * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual 4 * contributors by the @authors tag. See the copyright.txt in the 5 * distribution for a full listing of individual contributors. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.jboss.as.quickstarts.cdi.alternative; 18 19 import java.io.IOException; 20 21 import javax.inject.Inject; 22 import javax.servlet.RequestDispatcher; 23 import javax.servlet.ServletException; 24 import javax.servlet.annotation.WebServlet; 25 import javax.servlet.http.HttpServlet; 26 import javax.servlet.http.HttpServletRequest; 27 import javax.servlet.http.HttpServletResponse; 28 29 /** 30 * <p> 31 * Servlet implementation class Demo 32 * </p> 33 * 34 * @author Nevin Zhu 35 * 36 */ 37 @WebServlet("/") 38 public class Demo extends HttpServlet { 39 private static final long serialVersionUID = 1L; 40 41 /* 42 * Attribute will be injected during run time. If beans.xml has alternative defined, then that class will be injected. 43 * Otherwise, the default is injected. 44 */ 45 @Inject 46 private Tax tax; 47 48 /** 49 * handles the incoming servlet request 50 */ 51 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 52 53 try { 54 request.setAttribute("type", tax.getRate()); 55 RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/result.jsp"); 56 dispatcher.forward(request, response); 57 } catch (Exception e) { 58 e.printStackTrace(); 59 } 60 } 61 62 }