Quartz.net官方开发指南 第一课：使用Quartz.net 
2007-08-16 18:12:00
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使用scheduler之前应首先实例化它。使用SchedulerFactory可以完成scheduler的实例化。用户可直接地实例化这个工厂类并且直接使用工厂的实例（例如下面的例子）。
一旦一个scheduler被实例化，它就可以被启动(start),并且处于驻留模式，直到被关闭(shutdown)。注意，一旦scheduler被关闭（shutdown）,则它不能再重新启动，除非重新实例化它。除非scheduler 被启动或者不处于暂停状态，否则触发器不会被触发(任务也不能被执行)。
下面是一个代码片断，这个代码片断实例化并且启动了一个scheduler，接着将一个要执行的任务纳入了进程。
 using Common.Logging;namespace Quartz.Examples.Example1 {  /// <summary> /// This is just a simple job that says "Hello" to the world. /// </summary> /// <author>Bill Kratzer</author> public class HelloJob : IJob { private static ILog _log = LogManager.GetLogger(typeof(HelloJob)); /// <summary> /// Empty constructor for job initilization /// <p> /// Quartz requires a public empty constructor so that the /// scheduler can instantiate the class whenever it needs. /// </p> /// </summary> public HelloJob() { } /// <summary> /// Called by the <see cref="IScheduler" /> when a /// <see cref="Trigger" /> fires that is associated with /// the <see cref="IJob" />. /// </summary> public virtual void Execute(JobExecutionContext context) { // Say Hello to the World and display the date/time _log.Info(string.Format("Hello World! - {0}", System.DateTime.Now.ToString("r"))); } } } ILog log = LogManager.GetLogger(typeof(SimpleExample)); log.Info("------- Initializing ----------------------"); // First we must get a reference to a scheduler ISchedulerFactory sf = new StdSchedulerFactory(); IScheduler sched = sf.GetScheduler(); log.Info("------- Initialization Complete -----------"); log.Info("------- Scheduling Jobs -------------------"); // computer a time that is on the next round minute DateTime runTime = TriggerUtils.GetEvenMinuteDate(new NullableDateTime(DateTime.Now)); // define the job and tie it to our HelloJob class JobDetail job = new JobDetail("job1", "group1", typeof(HelloJob)); // Trigger the job to run on the next round minute SimpleTrigger trigger = new SimpleTrigger("trigger1", "group1", runTime); // Tell quartz to schedule the job using our trigger sched.ScheduleJob(job, trigger); log.Info(string.Format("{0} will run at: {1}", job.FullName, runTime.ToString("r"))); // Start up the scheduler (nothing can actually run until the // scheduler has been started) sched.Start(); log.Info("------- Started Scheduler -----------------"); // wait long enough so that the scheduler as an opportunity to // run the job! log.Info("------- Waiting 90 seconds -------------"); // wait 90 seconds to show jobs Thread.Sleep(90 * 1000); // shut down the scheduler log.Info("------- Shutting Down ---------------------"); sched.Shutdown(true); log.Info("------- Shutdown Complete -----------------");如您所见，使用quartz相当简单，在第二课中，我们将给出一个Job和Trigger的快速预览，这样就能够充分理解这个例子。 自由、创新、研究、探索…… 本文出自 “张善友” 博客，请务必保留此出处http://shanyou.blog.51cto.com/363653/74131 本文出自 51CTO.COM技术博客 |
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