cn.myapps.base.web.listener.StartupListener类学习

cn.myapps.base.web.listener.StartupListener是一个系统启动监听类，

 

让我们一起来看看它到底做了哪些事情：

public class StartupListener extends HttpServlet implements ServletContextListener {// Notification that the web application is ready to process requests/** * */private static final long serialVersionUID = 1L;private TaskProcess getTaskProcess() throws ClassNotFoundException {return (TaskProcess) ProcessFactory.createProcess(TaskProcess.class);}public void contextInitialized(ServletContextEvent sce) {try {// 关闭性能监控MonitorFactory.disable();// 初始化用户以及资源URLtry {PersistenceUtils.beginTransaction();InitSystem.init();PersistenceUtils.commitTransaction();} catch (Exception e) {PersistenceUtils.rollbackTransaction();e.printStackTrace();}// 初始化应用真实路径Environment evt = Environment.getInstance();evt.setApplicationRealPath(sce.getServletContext().getRealPath("/"));// 已废弃sce.getServletContext().setAttribute(Environment.class.getName(), evt);// 获取myApps的版本,初始化版本号String hostName = InetAddress.getLocalHost().getHostName();LicenseUtil.setAppVersion(sce.getServletContext().getRealPath("/"), hostName);// 获取所有任务Collection taskList = getTaskProcess().doSimpleQuery(null);for (Iterator iter = taskList.iterator(); iter.hasNext();) {Task task = (Task) iter.next();if (!(task.getStartupType() == TaskConstants.STARTUP_TYPE_AUTO)) {continue;}long delay = 60 * 1000;TimerRunner.registerJSService(task.getApplicationid());// 根据任务内容新建任务TimeRunnerAble job = TimerRunner.createTimeRunnerAble(task, getTaskProcess());// 把运行的任务放进runningList map中TimerRunner.runningList.put(task, job);TimerRunner.registerTimerTask(job, new Date(), delay);}// 流程催办提醒任务, 30分钟运行一次Schedule.registerJob(new NotificationJob(), NotificationConstant.JOB_PEIROD, NotificationConstant.JOB_PEIROD);// 流程自动节点任务初始化AutoAuditJobManager.initJobs();// 搜索测试//new SearchFiles().doSearchByField("title", "bar");//new SearchFiles().doSearchByField("title", "foo");// 启动索引创建//IndexBuilder.start();// 获取WebWork配置//Map configs = ConfigurationManager.getConfiguration().getRuntimeConfiguration().getActionConfigs();//for (Iterator iterator = configs.entrySet().iterator(); iterator.hasNext();) {//Entry entry = (Entry) iterator.next();//System.out.println("key: " + entry.getKey() + " value: " + entry.getValue());//}} catch (Exception e) {e.printStackTrace();} finally {try {PersistenceUtils.closeSessionAndConnection();} catch (Exception e) {e.printStackTrace();}}}public void contextDestroyed(ServletContextEvent sce) {}}

从以上代码以及注释可以看出：

1）初始化用户以及资源URL

2）初始化应用真实路径

3）获取所有任务

4）流程催办提醒任务, 30分钟运行一次

5）流程自动节点任务初始化