我实现了 Spring Cloud 任务示例中给出的示例批处理作业示例。其中使用的 Spring Boot 版本是 2.0.1.RELEASE。由于我必须移植另一项工作，所以我必须启动云任务，我想找到兼容的最旧版本。使用 1.3.2.RELEASE 创建的批处理作业 jar 作为 spring-boot 版本运行成功。但是，当我将其添加为应用程序后从 Spring Cloud Dataflow 的 UI 运行它时，出现以下错误:
2018-09-18 11:51:02.755 WARN 12368 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'taskLifecycleListener'; nested exception is java.lang.IllegalArgumentException: Invalid TaskExecution, ID 1 not found
2018-09-18 11:51:02.759 INFO 12368 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
2018-09-18 11:51:02.763 ERROR 12368 --- [ main] o.s.c.t.listener.TaskLifecycleListener : An event to end a task has been received for a task that has not yet started.
2018-09-18 11:51:02.767 INFO 12368 --- [ main] o.s.j.d.e.EmbeddedDatabaseFactory : Shutting down embedded database: url='jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=false'
2018-09-18 11:51:02.781 ERROR 12368 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.context.ApplicationContextException: Failed to start bean 'taskLifecycleListener'; nested exception is java.lang.IllegalArgumentException: Invalid TaskExecution, ID 1 not found
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:176) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:852) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.2.RELEASE.jar!/:1.3.2.RELEASE]
at io.spring.BatchJobApplication.main(BatchJobApplication.java:14) [batch-job-2.0.1.BUILD-SNAPSHOT.jar!/:2.0.1.BUILD-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54) [batch-job-2.0.1.BUILD-SNAPSHOT.jar!/:2.0.1.BUILD-SNAPSHOT]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
Caused by: java.lang.IllegalArgumentException: Invalid TaskExecution, ID 1 not found
at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
at org.springframework.cloud.task.listener.TaskLifecycleListener.doTaskStart(TaskLifecycleListener.java:233) ~[spring-cloud-task-core-2.0.1.BUILD-SNAPSHOT.jar!/:2.0.1.BUILD-SNAPSHOT]
at org.springframework.cloud.task.listener.TaskLifecycleListener.start(TaskLifecycleListener.java:355) ~[spring-cloud-task-core-2.0.1.BUILD-SNAPSHOT.jar!/:2.0.1.BUILD-SNAPSHOT]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
... 18 common frames omitted
最佳答案
大部分任务没有在给定的数据库中注册。因此，当我遇到无效的 TaskexecutionID 问题时，我将数据库凭据传递给数据流服务器，并在启动任务时传递相同的 [数据库详细信息]。一般来说，它们都应该位于具有数据库凭据的接收器中。最后，所有任务执行都在提供的数据库中记录了任务ID、执行开始时间、执行结束时间等。
task launch taskTimestmp2 --arguments "--spring.datasource.url=jdbc:mysql://localhost:3306/mydb --spring.datasource.username=root --spring.datasource.driver-class-name=org.mariadb.jdbc.Driver"
关于java - Spring Cloud任务taskLifecycleListener在数据流服务器中运行时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52380432/