Spring+Quartz 'jobLauncher' is not serializable

                                                                 Sring + Quartz出现  java.io.NotSerializableException: 

         Unable to serialize JobDataMap for insertion into database because the value of property 'jobLauncher' is not serializable

1.问题：quartz启用数据库管理模式，启动时报异常

【java.io.NotSerializableException: Unable to serialize JobDataMap for insertion into database because the value of property 'jobLauncher' is not serializable: org.springframework.batch.core.launch.support.SimpleJobLauncher】‍‍

 

2.原因：quartz使用数据库管理模式，需要将配置信息进行序列化，保存到数据库，而spring的SimpleJobLauncher是不支持序列化的.

配置如下：      

        <bean id="automatchJobDetail" class="org.springframework.scheduling.quartz.JobDetailBean"><property name="jobClass" value="com.kiosk.datacollect.quartz.QuartzJob" /><property name="group" value="quartz-batch-auto" /><property name="jobDataAsMap"><map>    <entry key="jobName" value="" />    <entry key="jobLocator" value-ref="jobRegistry" />          <entry key="jobLauncher" value-ref="jobLauncher" /></map></property></bean>

3.解决：

在spring的SchedulerFactoryBean类的源码里，有这样一段注释，大意是 当使用持久化的job，将jobdetail保存到数据库中，不要将spring管理的bean或是ApplicationContext的引用配置到JobDataMap中，而是通过schedulerContextAsMap参数将其配置到SchedulerContext（也就是Scheduler的上下文）

<bean id="scheduler" lazy-init="true" autowire="no"class="org.springframework.scheduling.quartz.SchedulerFactoryBean"><property name="autoStartup" value="true" /><property name="triggers"><list><bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean"><property name="jobDetail" ref="collectDataJobDetail" /><property name="cronExpression" value="10,20,30 * * * * ?" /></bean> </list></property>        <!-- 解决：quartz启用数据库管理模式，启动时报异常【java.io.NotSerializableException:           Unable to serialize JobDataMap for insertion into database because the value of          property 'jobLauncher' is not serializable: org.springframework.batch.core.launch.support.SimpleJobLauncher】‍‍ --><property name="schedulerContextAsMap"><map><entry key="jobLocator" value-ref="jobRegistry" /><entry key="jobLauncher" value-ref="jobLauncher" /></map></property><!--可选，QuartzScheduler 启动时更新己存在的Job，这样就不用每次修改targetObject后删除qrtz_job_details表对应记录了 -->                <property name="overwriteExistingJobs" value="true"/><!-- 属性 --><property name="quartzProperties"><props><!-- 集群要求必须使用持久化存储 --><prop key="org.quartz.jobStore.class">org.quartz.impl.jdbcjobstore.JobStoreCMT</prop>                <prop key="org.quartz.scheduler.instanceName">EventScheduler</prop><!-- 每个集群节点要有独立的instanceId --><prop key="org.quartz.scheduler.instanceId">AUTO</prop><!-- Configure ThreadPool --><prop key="org.quartz.threadPool.class">org.quartz.simpl.SimpleThreadPool</prop><prop key="org.quartz.threadPool.threadCount">50</prop><prop key="org.quartz.threadPool.threadPriority">5</prop><prop key="org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread">true</prop><!-- Configure JobStore --><prop key="org.quartz.jobStore.misfireThreshold">60000</prop><prop key="org.quartz.jobStore.driverDelegateClass">org.quartz.impl.jdbcjobstore.StdJDBCDelegate</prop><prop key="org.quartz.jobStore.tablePrefix">qrtz_</prop><prop key="org.quartz.jobStore.maxMisfiresToHandleAtATime">10</prop><!-- 开启集群 --><prop key="org.quartz.jobStore.isClustered">true</prop><prop key="org.quartz.jobStore.clusterCheckinInterval">5000</prop><prop key="org.quartz.jobStore.dontSetAutoCommitFalse">true</prop><prop key="org.quartz.jobStore.txIsolationLevelSerializable">false</prop><prop key="org.quartz.jobStore.dataSource">myDS</prop><prop key="org.quartz.jobStore.nonManagedTXDataSource">myDS</prop><prop key="org.quartz.jobStore.useProperties">false</prop><!-- Configure Datasources --><prop key="org.quartz.dataSource.myDS.driver">com.mysql.jdbc.Driver</prop><prop key="org.quartz.dataSource.myDS.URL">jdbc:mysql://192.168.28.128:3307/quartz</prop><prop key="org.quartz.dataSource.myDS.user">admin</prop><prop key="org.quartz.dataSource.myDS.password">admin</prop><prop key="org.quartz.dataSource.myDS.maxConnections">10</prop><prop key="org.quartz.dataSource.myDS.validationQuery">select 0 from qrtz_locks</prop></props></property><property name="applicationContextSchedulerContextKey" value="applicationContext" /></bean>

4.第二种解决方式：

1、jobLauncher创建新类，继承

org.springframework.batch.core.launch.support.SimpleJobLauncher，并实现接口Serializable

 

jobRegistry创建新类继承org.springframework.batch.core.configuration.support.MapJobRegistry，并实现接口Serializable