阿帕奇骆驼石英2

Question

我正在尝试使用 Apache Camel Quartz2 实现一个调度程序，它每分钟执行一次路由并按预期执行一些任务。 我正在使用 spring DSL 来实现与 apache camel 相关的路由，如下所示：

<camelContext
        xmlns="http://camel.apache.org/schema/spring">
        <propertyPlaceholder id="properties"
            location="classpath:application.properties" />
        <route>
            <from uri="quartz2://spring?cron=0+*+*+?+*+*" />
            <multicast parallelProcessing="true">
                <to uri="direct:DomainsWithFTPUsers" />
                <to uri="direct:DomainsWithoutFTPUsers" />
            </multicast>

调度程序在执行时会给出正确的时间，即根据日志安排在下一分钟，但是正如我希望它在 Linux 系统上表现得像一个 cronjob，应用程序正在退出而不继续作为调度程序工作并且确实甚至根本不执行多播路由。

如果我对 WINDOWS 操作系统的 Quartz 调度程序的理解不正确，请纠正我，因为我试图先在我的 Windows 系统上执行它。

下面是apache骆驼执行的日志供参考：

14:33:50.725 [main] INFO  org.springframework.context.support.ClassPathXmlApplicationContext  - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@7a46a697: startup date [Wed Feb 13 14:33:50 IST 2019]; root of context hierarchy
14:33:50.788 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from class path resource [applicationContext.xml]
14:33:52.523 [main] INFO  org.springframework.jdbc.datasource.DriverManagerDataSource  - Loaded JDBC driver: org.h2.Driver
14:33:52.842 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) is starting
14:33:52.842 [main] INFO  org.apache.camel.management.ManagedManagementStrategy  - JMX is enabled
14:33:52.998 [main] INFO  org.apache.camel.impl.converter.DefaultTypeConverter  - Loaded 183 type converters
14:33:53.076 [main] INFO  org.apache.camel.component.quartz2.QuartzComponent  - Create and initializing scheduler.
14:33:53.076 [main] INFO  org.apache.camel.component.quartz2.QuartzComponent  - Setting org.quartz.scheduler.jmx.export=true to ensure QuartzScheduler(s) will be enlisted in JMX.
14:33:53.108 [main] INFO  org.quartz.impl.StdSchedulerFactory  - Using default implementation for ThreadExecutor
14:33:53.123 [main] INFO  org.quartz.simpl.SimpleThreadPool  - Job execution threads will use class loader of thread: main
14:33:53.139 [main] INFO  org.quartz.core.SchedulerSignalerImpl  - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl
14:33:53.139 [main] INFO  org.quartz.core.QuartzScheduler  - Quartz Scheduler v.2.2.1 created.
14:33:53.139 [main] INFO  org.quartz.simpl.RAMJobStore  - RAMJobStore initialized.
14:33:53.139 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler meta-data: Quartz Scheduler (v2.2.1) 'DefaultQuartzScheduler-camel-1' with instanceId 'NON_CLUSTERED'
  Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.
  NOT STARTED.
  Currently in standby mode.
  Number of jobs executed: 0
  Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 10 threads.
  Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered.

14:33:53.139 [main] INFO  org.quartz.impl.StdSchedulerFactory  - Quartz scheduler 'DefaultQuartzScheduler-camel-1' initialized from an externally provided properties instance.
14:33:53.139 [main] INFO  org.quartz.impl.StdSchedulerFactory  - Quartz scheduler version: 2.2.1
14:33:53.186 [main] INFO  org.apache.camel.component.quartz2.QuartzEndpoint  - Job Camel_camel-1.spring (triggerType=CronTriggerImpl, jobClass=CamelJob) is scheduled. Next fire date is Wed Feb 13 14:34:00 IST 2019
14:33:53.405 [main] INFO  org.apache.camel.spring.SpringCamelContext  - AllowUseOriginalMessage is enabled. If access to the original message is not needed, then its recommended to turn this option off as it may improve performance.
14:33:53.405 [main] INFO  org.apache.camel.spring.SpringCamelContext  - StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
14:33:53.521 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Route: route1 started and consuming from: Endpoint[quartz2://spring?cron=0+*+*+%3F+*+*]
14:33:53.524 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Route: route2 started and consuming from: Endpoint[direct://DomainsWithFTPUsers]
14:33:53.528 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Route: route3 started and consuming from: Endpoint[direct://DomainsWithoutFTPUsers]
14:33:53.532 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Route: route4 started and consuming from: Endpoint[direct://scpToDBServer]
14:33:53.533 [main] INFO  org.apache.camel.component.quartz2.QuartzComponent  - Starting scheduler.
14:33:53.533 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler DefaultQuartzScheduler-camel-1_$_NON_CLUSTERED started.
14:33:53.533 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Total 4 routes, of which 4 is started.
14:33:53.535 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) started in 0.691 seconds
14:33:53.535 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) is starting
14:33:53.535 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Total 4 routes, of which 4 is started.
14:33:53.535 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) started in 0.000 seconds
14:33:56.538 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) is shutting down
14:33:56.540 [main] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Starting to graceful shutdown 4 routes (timeout 300 seconds)
14:33:56.540 [Camel (camel-1) thread #0 - ShutdownTask] INFO  org.apache.camel.component.quartz2.QuartzEndpoint  - Pausing trigger Camel_camel-1.spring
14:33:56.556 [Camel (camel-1) thread #0 - ShutdownTask] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Route: route4 shutdown complete, was consuming from: Endpoint[direct://scpToDBServer]
14:33:56.556 [Camel (camel-1) thread #0 - ShutdownTask] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Route: route3 shutdown complete, was consuming from: Endpoint[direct://DomainsWithoutFTPUsers]
14:33:56.556 [Camel (camel-1) thread #0 - ShutdownTask] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Route: route2 shutdown complete, was consuming from: Endpoint[direct://DomainsWithFTPUsers]
14:33:56.556 [Camel (camel-1) thread #0 - ShutdownTask] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Route: route1 shutdown complete, was consuming from: Endpoint[quartz2://spring?cron=0+*+*+%3F+*+*]
14:33:56.556 [main] INFO  org.apache.camel.impl.DefaultShutdownStrategy  - Graceful shutdown of 4 routes completed in 0 seconds
14:33:56.571 [main] INFO  org.apache.camel.component.quartz2.QuartzEndpoint  - Deleting job Camel_camel-1.spring
14:33:56.571 [main] INFO  org.apache.camel.component.quartz2.QuartzComponent  - Shutting down scheduler. (will wait for all jobs to complete first.)
14:33:56.571 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler DefaultQuartzScheduler-camel-1_$_NON_CLUSTERED shutting down.
14:33:56.571 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler DefaultQuartzScheduler-camel-1_$_NON_CLUSTERED paused.
14:33:56.681 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler unregistered from name 'quartz:type=QuartzScheduler,name=DefaultQuartzScheduler-camel-1,instance=NON_CLUSTERED' in the local MBeanServer.
14:33:56.681 [main] INFO  org.quartz.core.QuartzScheduler  - Scheduler DefaultQuartzScheduler-camel-1_$_NON_CLUSTERED shutdown complete.
14:33:56.681 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) uptime 3.146 seconds
14:33:56.681 [main] INFO  org.apache.camel.spring.SpringCamelContext  - Apache Camel 2.15.1 (CamelContext: camel-1) is shutdown in 0.143 seconds

根据日志，它不会进一步记录为路由记录的消息，即 direct:DomainsWithFTPUsers 等。 请指导如何实现这一目标。

Answer 1

根据克劳斯的建议，我对我的主要方法进行了以下更改，它现在按预期工作。 以前我使用下面的代码来初始化我的上下文并启动路由，因此 JVM 正在停止它的执行：

public static void main(String[] args) throws Exception {
        ApplicationContext appContext = new ClassPathXmlApplicationContext(
                "applicationContext.xml");
        CamelContext camelContext = SpringCamelContext.springCamelContext(
                appContext, false);
    }

保持 JVM 运行的正确方法：

public static void main(String[] args) throws Exception {
    Main main = new Main();
    main.enableHangupSupport();
    main.setFileApplicationContextUri("classpath:applicationContext.xml");
    main.run();
}