在SpringMVC 4我得到石英调度运行两次一次

Question

在我的Spring MVC项目中，一个石英调度器，它将一次运行两次，如何修复它并一次执行一次。

@WebListener
public class QuartzListener extends QuartzInitializerListener {
@Override
public void contextInitialized(ServletContextEvent sce) {
    super.contextInitialized(sce);
    ServletContext ctx = sce.getServletContext();
    StdSchedulerFactory factory = (StdSchedulerFactory) ctx.getAttribute(QUARTZ_FACTORY_KEY);
    try {
        Scheduler scheduler = factory.getScheduler();
        JobDetail jobDetail = JobBuilder.newJob(TestJob.class).build();
        Trigger trigger = TriggerBuilder.newTrigger().withIdentity("simple").withSchedule(
                CronScheduleBuilder.cronSchedule("0 0/1 * 1/1 * ? *")).startNow().build();
        scheduler.scheduleJob(jobDetail, trigger);
        scheduler.start();
    } catch (Exception e) {
        ctx.log("There was an error scheduling the job.", e);
    }
  }
}

和测试类，

   public class TestJob implements Job {
@Override
public void execute(final JobExecutionContext ctx) throws 
 JobExecutionException {
    System.out.println("Executing Job");
  }
 }

网络初始化器类，

   public class WebAppInitializer extends 
      AbstractAnnotationConfigDispatcherServletInitializer{
    @Override
    protected Class<?>[] getRootConfigClasses(){
        return new Class[]{WebSecurityConfig.class};
    }
    @Override
    protected Class<?>[] getServletConfigClasses(){
        return new Class[]{WebAppConfig.class, HibernateConfiguration.class};
    }
    @Override
    protected String[] getServletMappings(){
        return new String[]{"/"};
    }
  }

我的网络配置是，

@Configuration
@EnableWebMvc
@ComponentScan(basePackages="com.neron")
public class WebAppConfig extends WebMvcConfigurerAdapter {

@Bean
public ViewResolver resourceViewResolver(){
    ResourceBundleViewResolver viewResolver = new 
    ResourceBundleViewResolver();
    viewResolver.setOrder(0);
    viewResolver.setBasename("views");
    return viewResolver;
}
............
 ...............
@Scheduled(cron = "0 0/1 * 1/1 * ?")
public void schedulerCall()
{
    System.out.println("Calling");
}

在这里，我每分钟有两次“执行作业”，但我希望每分钟只有一次“执行作业”。有人能解决吗？提前谢谢！

Answer 1

更多信息查找GitHub链接https://github.com/faizakram/Spring_Base_Exmaple_Annotation_Based

 //Configuration class
    @Configuration
    @EnableWebMvc
    @EnableScheduling
    @ComponentScan(basePackages = { CommonConstants.BASE_PACKAGE })
    public class WebMvcConfig {


            }

    //create a service method like this
     @Scheduled(cron = "0 0/1 * 1/1 * ?")
            public void schedulerCall()
            {
                System.out.println("Calling");
            }

Answer 2

在这里，您的解决方案将此注释添加到job类的顶部

import org.quartz.DisallowConcurrentExecution;// import this
   @DisallowConcurrentExecution

如果您在集群环境中工作，那么就需要不同的实现。如果你需要在这里发表评论。或者，如果你的问题解决了，那就接受它。