在Spring中将bean引用注入到Quartz中？

Z时代
2024-01-10
分类：问答

我设法在Spring中使用JobStoreTX持久性存储来配置和调度Quartz作业。我不使用Spring的Quartz作业，因为我需要在运行时动态地调度它们，并且我发现的所有将Spring与Quartz集成的示例都是在Spring配置文件中对程序进行硬编码的。。。我安排工作：

JobDetail emailJob = JobBuilder.newJob(EMailJob.class)
.withIdentity("someJobKey", "immediateEmailsGroup")
.storeDurably()
.build();
SimpleTrigger trigger = (SimpleTrigger) TriggerBuilder.newTrigger() 
.withIdentity("someTriggerKey", "immediateEmailsGroup")
.startAt(fireTime)
.build();
// pass initialization parameters into the job
emailJob.getJobDataMap().put(NotificationConstants.MESSAGE_PARAMETERS_KEY,       messageParameters);
emailJob.getJobDataMap().put(NotificationConstants.RECIPIENT_KEY, recipient);
if (!scheduler.checkExists(jobKey) && scheduler.getTrigger(triggerKey) != null)     {                                       
// schedule the job to run
Date scheduleTime1 = scheduler.scheduleJob(emailJob, trigger);
}

EMailJob是一个简单的工作，它使用Spring的JavaMailSenderImpl类发送电子邮件。

public class EMailJob implements Job {
@Autowired
private JavaMailSenderImpl mailSenderImpl;
    public EMailJob() {
    }
    public void execute(JobExecutionContext context)
       throws JobExecutionException {
   ....
    try {
        mailSenderImpl.send(mimeMessage);
    } catch (MessagingException e) {
        ....
        throw new JobExecutionException("EMailJob failed: " +  jobKey.getName(), e);
    }
    logger.info("EMailJob finished OK");
}

问题是我需要在我的EMailJob类中获得对该类的实例（JavaMailSenderImpl）的引用。当我尝试像这样注入时：

@Autowired
private JavaMailSenderImpl mailSenderImpl;

它没有注入-引用为NULL。我假设发生这种情况是因为实例化EMailJob类的不是Spring，而是Quartz，而Quartz对依赖注入一无所知…

那么，有什么方法可以迫使这种注入发生？

谢谢！

更新1：@Aaron：这是启动时栈跟踪的相关部分，它显示EMailJob实例化了两次：

2019-08-15 14:16:38,687 [main] INFO org.springframework.context.support.GenericApplicationContext - Bean 'org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler#0' is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 2019-08-15 14:16:38,734 [main] INFO org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1328c7a: defining beans [...]; root of factory hierarchy 2019-08-15 14:16:39,734 [main] INFO com.cambridgedata.notifications.EMailJob - EMailJob() - initializing ... 2019-08-15 14:16:39,937 [main] INFO org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor - Validated configuration attributes 2019-08-15 14:16:40,078 [main] INFO org.springframework.security.web.access.intercept.FilterSecurityInterceptor - Validated configuration attributes 2019-08-15 14:16:40,296 [main] INFO org.springframework.jdbc.datasource.init.ResourceDatabasePopulator - Executing SQL script from class path resource ... 2019-08-15 14:17:14,031 [main] INFO com.mchange.v2.log.MLog - MLog clients using log4j logging. 2019-08-15 14:17:14,109 [main] INFO com.mchange.v2.c3p0.C3P0Registry - Initializing c3p0-0.9.1.1 [built 15-March-2007 01:32:31; debug? true; trace: 10] 2019-08-15 14:17:14,171 [main] INFO org.quartz.core.SchedulerSignalerImpl - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl 2019-08-15 14:17:14,171 [main] INFO org.quartz.core.QuartzScheduler - Quartz Scheduler v.2.0.1 created. 2019-08-15 14:17:14,187 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Using thread monitor-based data access locking (synchronization). 2019-08-15 14:17:14,187 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - JobStoreTX initialized. 2019-08-15 14:17:14,187 [main] INFO org.quartz.core.QuartzScheduler - Scheduler meta-data: Quartz Scheduler (v2.0.1) 'NotificationsScheduler' 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 3 threads. Using job-store 'org.quartz.impl.jdbcjobstore.JobStoreTX' - which supports persistence. and is not clustered. 2019-08-15 14:17:14,187 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler 'NotificationsScheduler' initialized from the specified file : 'spring/quartz.properties' from the class resource path. 2019-08-15 14:17:14,187 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler version: 2.0.1 2019-08-15 14:17:14,234 [main] INFO com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 2sajb28h1lcabf28k3nr1|13af084, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 2sajb28h1lcabf28k3nr1|13af084, idleConnectionTestPeriod -> 50, initialPoolSize -> 3, jdbcUrl -> jdbc:mysql://localhost:3306/2010rewrite2, lastAcquisitionFailureDefaultUser -> null, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 5, maxStatements -> 0, maxStatementsPerConnection -> 120, minPoolSize -> 1, numHelperThreads -> 3, numThreadsAwaitingCheckoutDefaultUser -> 0, preferredTestQuery -> select 0 from dual, properties -> {user=******, password=******}, propertyCycle -> 0, testConnectionOnCheckin -> true, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false ] 2019-08-15 14:17:14,312 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Freed 0 triggers from 'acquired' / 'blocked' state. 2019-08-15 14:17:14,328 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Recovering 0 jobs that were in-progress at the time of the last shut-down. 2019-08-15 14:17:14,328 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Recovery complete. 2019-08-15 14:17:14,328 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Removed 0 'complete' triggers. 2019-08-15 14:17:14,328 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Removed 0 stale fired job entries. 2019-08-15 14:17:14,328 [main] INFO org.quartz.core.QuartzScheduler - Scheduler NotificationsScheduler_$_NON_CLUSTERED started. 2019-08-15 14:17:14,515 [NotificationsScheduler_QuartzSchedulerThread] INFO com.cambridgedata.notifications.EMailJob - EMailJob() - initializing ...

谢谢！

更新＃2：@Ryan：

我尝试如下使用SpringBeanJobFactory：

    <bean id="jobFactoryBean" class="org.springframework.scheduling.quartz.SpringBeanJobFactory">
</bean>
<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="configLocation" value="classpath:spring/quartz.properties"/>
        <property name="jobFactory" ref="jobFactoryBean"/>
</bean>

而且我已经修改了我的主类，以便从该工厂而不是Quartz’获得Scheduler：

    @PostConstruct
public void initNotificationScheduler() {
    try {
        //sf = new StdSchedulerFactory("spring/quartz.properties");
        //scheduler = sf.getScheduler();
        scheduler = schedulerFactoryBean.getScheduler();
        scheduler.start();
            ....

但是，当我运行该应用程序时-出现错误，请参见下文。这是Spring启动时的堆栈跟踪。似乎Scheduler本身可以很好地创建，但是在尝试实例化我的EMailJob时出现错误：

2019-08-15 21:49:42,968 [main] INFO org.springframework.scheduling.quartz.SchedulerFactoryBean - Loading Quartz config from [class path resource [spring/quartz.properties]] 2019-08-15 21:49:43,031 [main] INFO com.mchange.v2.log.MLog - MLog clients using log4j logging. 2019-08-15 21:49:43,109 [main] INFO com.mchange.v2.c3p0.C3P0Registry - Initializing c3p0-0.9.1.1 [built 15-March-2007 01:32:31; debug? true; trace: 10] 2019-08-15 21:49:43,187 [main] INFO org.quartz.core.SchedulerSignalerImpl - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl 2019-08-15 21:49:43,187 [main] INFO org.quartz.core.QuartzScheduler - Quartz Scheduler v.2.0.1 created. 2019-08-15 21:49:43,187 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Using thread monitor-based data access locking (synchronization). 2019-08-15 21:49:43,187 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - JobStoreTX initialized. 2019-08-15 21:49:43,187 [main] INFO org.quartz.core.QuartzScheduler - Scheduler meta-data: Quartz Scheduler (v2.0.1) 'schedulerFactoryBean' 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 3 threads. Using job-store 'org.quartz.impl.jdbcjobstore.JobStoreTX' - which supports persistence. and is not clustered. 2019-08-15 21:49:43,187 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler 'schedulerFactoryBean' initialized from an externally provided properties instance. 2019-08-15 21:49:43,187 [main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler version: 2.0.1 2019-08-15 21:49:43,187 [main] INFO org.quartz.core.QuartzScheduler - JobFactory set to: org.springframework.scheduling.quartz.SpringBeanJobFactory@566633 2019-08-15 21:49:43,265 [main] INFO com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 1hge13f8h1lsg7py1rg0iu0|1956391, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge13f8h1lsg7py1rg0iu0|1956391, idleConnectionTestPeriod -> 50, initialPoolSize -> 3, jdbcUrl -> jdbc:mysql://localhost:3306/2010rewrite2, lastAcquisitionFailureDefaultUser -> null, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 5, maxStatements -> 0, maxStatementsPerConnection -> 120, minPoolSize -> 1, numHelperThreads -> 3, numThreadsAwaitingCheckoutDefaultUser -> 0, preferredTestQuery -> select 0 from dual, properties -> {user=******, password=******}, propertyCycle -> 0, testConnectionOnCheckin -> true, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false ] 2019-08-15 21:49:43,343 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Freed 0 triggers from 'acquired' / 'blocked' state. 2019-08-15 21:49:43,359 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Recovering 0 jobs that were in-progress at the time of the last shut-down. 2019-08-15 21:49:43,359 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Recovery complete. 2019-08-15 21:49:43,359 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Removed 0 'complete' triggers. 2019-08-15 21:49:43,359 [main] INFO org.quartz.impl.jdbcjobstore.JobStoreTX - Removed 0 stale fired job entries. 2019-08-15 21:49:43,359 [main] INFO org.quartz.core.QuartzScheduler - Scheduler schedulerFactoryBean_$_NON_CLUSTERED started. 2019-08-15 21:49:43,562 [schedulerFactoryBean_QuartzSchedulerThread] ERROR org.quartz.core.ErrorLogger - An error occured instantiating job to be executed. job= 'immediateEmailsGroup.DEFAULT.jobFor_1000new1' org.quartz.SchedulerException: Problem instantiating class 'com.cambridgedata.notifications.EMailJob' - [See nested exception: java.lang.AbstractMethodError: org.springframework.scheduling.quartz.SpringBeanJobFactory.newJob(Lorg/quartz/spi/TriggerFiredBundle;Lorg/quartz/Scheduler;)Lorg/quartz/Job;] at org.quartz.core.JobRunShell.initialize(JobRunShell.java:141) at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:381) Caused by: java.lang.AbstractMethodError: org.springframework.scheduling.quartz.SpringBeanJobFactory.newJob(Lorg/quartz/spi/TriggerFiredBundle;Lorg/quartz/Scheduler;)Lorg/quartz/Job; at org.quartz.core.JobRunShell.initialize(JobRunShell.java:134)

谢谢！

回答：

你可以使用它SpringBeanJobFactory来使用spring自动为石英对象自动接线：

import org.quartz.spi.TriggerFiredBundle;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.scheduling.quartz.SpringBeanJobFactory;
public final class AutowiringSpringBeanJobFactory extends SpringBeanJobFactory implements
    ApplicationContextAware {
    private transient AutowireCapableBeanFactory beanFactory;
    @Override
    public void setApplicationContext(final ApplicationContext context) {
        beanFactory = context.getAutowireCapableBeanFactory();
    }
    @Override
    protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
        final Object job = super.createJobInstance(bundle);
        beanFactory.autowireBean(job);
        return job;
    }
}

然后，将其附加到你的SchedulerBean（在这种情况下，使用Java-config）：

@Bean
public SchedulerFactoryBean quartzScheduler() {
    SchedulerFactoryBean quartzScheduler = new SchedulerFactoryBean();
    ...
    AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
    jobFactory.setApplicationContext(applicationContext);
    quartzScheduler.setJobFactory(jobFactory);
    ...
    return quartzScheduler;
}

使用spring-3.2.1和quartz-2.1.6为我工作。

以上是在Spring中将bean引用注入到Quartz中？的全部内容，来源链接： utcz.com/qa/427689.html