如何在执行代码时第一次停止弹出批量预定作业？

Question

我正在使用带有石英的弹簧批2.2.4在某个时间运行一些工作

问题是作业总是在第一次执行代码后运行,然后根据计划的时间运行.我想停止第一次运行,让它只根据预定的时间运行.

我的cron表达式是"0 0 0**？" 我也试过"0 0 0 1/1*？*",但它仍然会在应用程序启动时执行一次

如何在应用程序启动时停止第一次执行？

这是作业上下文文件:

<batch:job id="exceptionLogJob">
        <batch:step id="exceptionLogReadWriteStep">
            <batch:tasklet >
                <batch:chunk reader="exceptionLogReader" writer="exceptionLogWriter"
                    commit-interval="1000" />
            </batch:tasklet>
        </batch:step>
    </batch:job>


    <!-- ======================================================= -->
    <!-- READER -->
    <!-- ======================================================= -->
    <bean id="exceptionLogReader"
        class="org.springframework.batch.item.database.JdbcCursorItemReader">
        <property name="dataSource" ref="dataSource" />
        <property name="sql" value="SELECT a.*,a.rowid FROM SF_EXCEPTION_LOG a WHERE DATETIME  > SYSDATE - 1" />
        <property name="rowMapper" ref="ExceptionLogRowMapper" />
    </bean>
    <!-- ======================================================= -->
    <!-- Writer -->
    <!-- ======================================================= -->
    <bean id="exceptionLogWriter"
        class="com.mobily.sf.batchprocessor.exceptionlog.ExceptionLogWriter" />

            <bean id="jobDetailExceptionLog" class="org.springframework.scheduling.quartz.JobDetailBean">
        <property name="jobClass"
            value="com.sf.batchprocessor.commons.JobLauncherDetails" />
        <property name="jobDataAsMap">
            <map>
                <entry key="jobName" value="exceptionLogJob" />
                <entry key="jobLocator" value-ref="jobRegistry" />
                <entry key="jobLauncher" value-ref="jobLauncher" />
            </map>
        </property>
    </bean>

    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <bean id="cronTrigger"
                class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
                <property name="jobDetail" ref="jobDetailExceptionLog" />
                <property name="cronExpression" value="0 0 0 1/1 * ? *" />
            </bean>
        </property>
    </bean>

</beans>

Answer 1

我有同样的问题,并确定它是由Spring boot的自动配置服务引起的.默认情况下,它将在应用程序启动后运行所有已配置的作业Bean.

有两个属性会影响此行为:

• spring.batch.job.enabled
• spring.batch.job.names

第一个阻止在设置为false时启动所有作业.第二个接受将以逗号分隔的作业名称列表.

这两个属性可以通过Spring启动文档中指定的各种方式设置:

1. 命令行(--spring.batch.job.enabled=false)
2. Java系统属性(-Dspring.batch.job.enabled=false)
3. OS环境变量
4. @PropertySource注释
5. jar目录中的application.properties文件
6. jar中的application.properties文件
7. SpringApplication.setDefaultProperties

Answer 2

我猜是一些配置问题。这是我使用相同的 cron 表达式测试的配置。我已经使用以下配置启动了 context.xml 。

<bean class="org.springframework.batch.core.configuration.support.AutomaticJobRegistrar">
    <property name="applicationContextFactories">
        <bean
            class="org.springframework.batch.core.configuration.support.ClasspathXmlApplicationContextsFactoryBean">

            <property name="resources">
                <list>
                    <value>classpath*:configurations/kp-batch.xml</value>
                </list>
            </property>

        </bean>
    </property>

    <property name="jobLoader" >
        <bean
            class="org.springframework.batch.core.configuration.support.DefaultJobLoader">
            <property name="jobRegistry" ref="jobRegistry" />
        </bean>
    </property>
</bean>

<bean id="jobRegistry"
    class="org.springframework.batch.core.configuration.support.MapJobRegistry" />

<bean id="schedule"
    class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="triggers">
        <list>
            <ref bean="cronTrigger1"/>
        </list>
    </property>
</bean>

<bean id="cronTrigger1"
    class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
    <property name="jobDetail" ref="kpJobDetail" />
    <property name="cronExpression" value="0 0 0 1/1 * ? *"/>
</bean>

<bean id="kpJobDetail" class="org.springframework.scheduling.quartz.JobDetailBean">
    <property name="jobClass"
        value="com.viasat.nbn.nms.webservices.util.SpringBatchQuartzJobLauncher" />
    <property name="jobDataAsMap">
        <map>
            <entry key="jobName" value="Trigger Job for 12AM" />
            <entry key="jobLocator" value-ref="jobRegistry" />
            <entry key="jobLauncher" value-ref="jobLauncher" />
        </map>
    </property>
</bean>

<bean id="batchTransactionManager"
    class="org.springframework.batch.support.transaction.ResourcelessTransactionManager">
    <property name="rollbackOnCommitFailure" value="false" />
</bean>

<bean id="jobLauncher"
    class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
    <property name="jobRepository" ref="jobRepository" />
</bean>

<bean id="jobRepository"
    class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean">
    <property name="transactionManager" ref="batchTransactionManager" />
</bean>

在 kp-batch.xml 中，我定义了作业、itemreader、itemwriter 等。