/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package async; import java.io.IOException; import javax.servlet.AsyncContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.juli.logging.Log; import org.apache.juli.logging.LogFactory; public class Async2 extends HttpServlet { private static final long serialVersionUID = 1L; private static final Log log = LogFactory.getLog(Async2.class); @Override protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { final AsyncContext actx = req.startAsync(); actx.setTimeout(30*1000); Runnable run = new Runnable() { @Override public void run() { try { Thread.currentThread().setName("Async2-Thread"); log.info("Putting AsyncThread to sleep"); Thread.sleep(2*1000); log.info("Writing data."); actx.getResponse().getWriter().write("Output from background thread. Time:"+System.currentTimeMillis()+"\n"); actx.complete(); }catch (InterruptedException x) { log.error("Async2",x); }catch (IllegalStateException x) { log.error("Async2",x); }catch (IOException x) { log.error("Async2",x); } } }; Thread t = new Thread(run); t.start(); } }