Java 使用分区器时没有上下文持有者
我是新来的，可能这就是为什么我有这样一个问题的原因，但无论如何。 我想使用partitioner，以便它在线程之间分割工作（每个线程的用户数）。我遵循了这本书（春季批次的权威指南），并获得了Java 使用分区器时没有上下文持有者,java,spring-boot,spring-batch,Java,Spring Boot,Spring Batch,我是新来的，可能这就是为什么我有这样一个问题的原因，但无论如何。 我想使用partitioner，以便它在线程之间分割工作（每个线程的用户数）。我遵循了这本书（春季批次的权威指南），并获得了 原因：java.lang.IllegalStateException:没有可用于步骤范围的上下文持有者 我尝试了各种各样的教程来解决这个问题，但是他们帮不了我。 我用的是代码 @SpringBootApplication @Slf4j @Import(BatchConfig.class) public cl
原因：java.lang.IllegalStateException:没有可用于步骤范围的上下文持有者@SpringBootApplication
@Slf4j
@Import(BatchConfig.class)
public class DemoApplication {
public static void main(String[] args) {
ApplicationContext context = SpringApplication.run(DemoApplication.class, args);
final JobLauncher jobLauncher = (JobLauncher) context.getBean("jobLauncher");
final Job job = (Job) context.getBean("partitionerJob");
log.info("Starting the batch job");
try {
final JobExecution execution = jobLauncher.run(job, new JobParametersBuilder().addString("userId", "123,456,789").toJobParameters());
log.info("Job Status : {}", execution.getStatus());
} catch (final Exception e) {
e.printStackTrace();
log.error("Job failed {}", e.getMessage());
}
}
}
public类UserPartitioner实现了Partitioner{
私有静态最终字符串分区\u KEY=“PARTITION”；
私有列表用户列表；
public void setUserList（List userList）{
this.userList=userList；
}
@凌驾
公共地图分区（int gridSize）{
Map partitionContext=新HashMap（gridSize）；
int i=0；
for（字符串userId:userList）{
ExecutionContext=新的ExecutionContext（）；
context.put（“userId”，userId）；
partitionContext.put（PARTITION_KEY+i，context）；
i++；
}
返回partitionContext；
}
}
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-11 13:53:46.474 INFO 28557 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication on sts with PID 28557 (/home/sts/IdeaProjects/demo/target/classes started by sts in /home/sts/IdeaProjects/demo)
2020-02-11 13:53:46.478 INFO 28557 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2020-02-11 13:53:47.352 INFO 28557 --- [ main] o.s.j.d.e.EmbeddedDatabaseFactory : Starting embedded database: url='jdbc:hsqldb:mem:testdb', username='sa'
2020-02-11 13:53:47.780 WARN 28557 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'partitionerJob' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
2020-02-11 13:53:47.781 INFO 28557 --- [ main] o.s.j.d.e.EmbeddedDatabaseFactory : Shutting down embedded database: url='jdbc:hsqldb:mem:testdb'
2020-02-11 13:53:47.799 INFO 28557 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-02-11 13:53:47.804 ERROR 28557 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'partitionerJob' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at com.example.demo.DemoApplication.main(DemoApplication.java:42) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 18 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:394) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:366) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.masterStep(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig.partitionerJob(BatchConfig.java:46) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.CGLIB$partitionerJob$0(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd$$FastClassBySpringCGLIB$$9cf674b6.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.partitionerJob(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 19 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 42 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:368) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.sun.proxy.$Proxy47.getName(Unknown Source) ~[na:na]
at com.example.demo.BatchConfig.masterStep(BatchConfig.java:53) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.CGLIB$masterStep$3(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd$$FastClassBySpringCGLIB$$9cf674b6.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.masterStep(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 43 common frames omitted
Caused by: java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.batch.core.scope.StepScope.getContext(StepScope.java:167) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.scope.StepScope.get(StepScope.java:99) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 58 common frames omitted
。\uuuuuuuuuuuu_
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
：：弹簧靴：：（v2.2.4.版本）
2020-02-11 13:53:46.474信息28557---[main]com.example.demo.DemoApplication:在sts上启动带有PID 28557的DemoApplication（/home/sts/IdeaProjects/demo/target/classes由sts在/home/sts/IdeaProjects/demo中启动）
2020-02-11 13:53:46.478信息28557---[main]com.example.demo.DemoApplication:未设置活动配置文件，返回默认配置文件：默认
2020-02-11 13:53:47.352信息28557---[main]o.s.j.d.e.嵌入式数据库工厂：启动嵌入式数据库：url='jdbc:hsqldb:mem:testdb'，username='sa'
2020-02-11 13:53:47.780警告28557---[main]s.c.a.AnnotationConfigApplicationContext:上下文初始化期间遇到异常-取消刷新尝试：org.springframework.beans.factory.beancreatitionException:创建在类路径资源中定义了名称为“partitionerJob”的bean时出错[com/example/demo/BatchConfig.class]：通过工厂方法实例化Bean失败；嵌套异常为org.springframework.beans.BeanInstantiationException:实例化[org.springframework.batch.core.Job]失败：工厂方法“partitionerJob”引发异常；嵌套异常为org.springframework.beans.Factory.BeanCreationException:创建名为“masterStep”的bean时出错，该bean在类路径资源[com/example/demo/BatchConfig.class]中定义：通过工厂方法实例化Bean失败；嵌套异常为org.springframework.beans.BeanInstantiationException:实例化[org.springframework.batch.core.Step]失败“工厂方法”MSTESTEP抛出异常；嵌套异常是Or.SrpRefFrkWork.BeANS.Fase.BeeCeCurrExcExc:用名称“SimeDebug StaveSavePeST”创建bean的错误：作用域“步骤”对于当前线程不活动；如果您打算从单点引用它，请考虑为该bean定义一个范围代理；嵌套异常是java。.lang.IllegalStateException:没有可用于步骤作用域的上下文持有者
2020-02-11 13:53:47.781信息28557---[main]o.s.j.d.e.嵌入式数据库工厂：关闭嵌入式数据库：url='jdbc:hsqldb:mem:testdb'
2020-02-11 13:53:47.799信息28557---[main]条件评估报告日志监听器：
启动ApplicationContext时出错。若要显示条件报告，请在启用“调试”的情况下重新运行应用程序。
2020-02-11 13:53:47.804错误28557---[main]o.s.boot.SpringApplication:应用程序运行失败
org.springframework.beans.factory.BeanCreationException:创建名为“partitionerJob”的bean时出错，该名称在类路径资源[com/example/demo/BatchConfig.class]中定义：通过工厂方法实例化bean失败；嵌套异常为org.springframework.beans.beanInstationException:实例化失败[org.springframework.batch.core.Job]：工厂方法“partitionerJob”引发异常；嵌套异常为org.springframework.beans.Factory.BeanCreationException:创建名为“masterStep”的bean时出错，该bean在类路径资源[com/example/demo/BatchConfig.class]中定义：通过工厂方法实例化Bean失败；嵌套异常为org.springframework.beans.BeanInstantiationException:实例化[org.springframework.batch.core.Step]失败“工厂方法”MSTESTEP抛出异常；嵌套异常是Or.SrpRefFrkWork.BeANS.Fase.BeeCeCurrExcExc:用名称“SimeDebug StaveSavePeST”创建bean的错误：作用域“步骤”对于当前线程不活动；如果您打算从单点引用它，请考虑为该bean定义一个范围代理；嵌套异常是java。.lang.IllegalStateException:没有可用于步骤作用域的上下文持有者
在org.springframework.beans.factory.support.ConstructorResolver.instantiate（ConstructorResolver.java:656）~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
在org.springframework.beans.factory.support.ConstructorResolver.InstanceUsingFactoryMethod（ConstructorResolver.java:484）~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.InstanceUsingFactoryMethod（AbstractAutowireCapableBeanFactory.java:1338）~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.c
public class UserPartitioner implements Partitioner {
private static final String PARTITION_KEY = "partition";
private List<String> userList;
public void setUserList(List<String> userList) {
this.userList = userList;
}
@Override
public Map<String, ExecutionContext> partition(int gridSize) {
Map<String, ExecutionContext> partitionContext = new HashMap<>(gridSize);
int i = 0;
for (String userId: userList) {
ExecutionContext context = new ExecutionContext();
context.put("userId", userId);
partitionContext .put(PARTITION_KEY + i, context);
i++;
}
return partitionContext;
}
}
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-11 13:53:46.474 INFO 28557 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication on sts with PID 28557 (/home/sts/IdeaProjects/demo/target/classes started by sts in /home/sts/IdeaProjects/demo)
2020-02-11 13:53:46.478 INFO 28557 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2020-02-11 13:53:47.352 INFO 28557 --- [ main] o.s.j.d.e.EmbeddedDatabaseFactory : Starting embedded database: url='jdbc:hsqldb:mem:testdb', username='sa'
2020-02-11 13:53:47.780 WARN 28557 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'partitionerJob' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
2020-02-11 13:53:47.781 INFO 28557 --- [ main] o.s.j.d.e.EmbeddedDatabaseFactory : Shutting down embedded database: url='jdbc:hsqldb:mem:testdb'
2020-02-11 13:53:47.799 INFO 28557 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-02-11 13:53:47.804 ERROR 28557 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'partitionerJob' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE]
at com.example.demo.DemoApplication.main(DemoApplication.java:42) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'partitionerJob' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 18 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterStep' defined in class path resource [com/example/demo/BatchConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:394) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:366) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.masterStep(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig.partitionerJob(BatchConfig.java:46) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.CGLIB$partitionerJob$0(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd$$FastClassBySpringCGLIB$$9cf674b6.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.partitionerJob(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 19 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'masterStep' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 42 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.slaveStep': Scope 'step' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:368) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.sun.proxy.$Proxy47.getName(Unknown Source) ~[na:na]
at com.example.demo.BatchConfig.masterStep(BatchConfig.java:53) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.CGLIB$masterStep$3(<generated>) ~[classes/:na]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd$$FastClassBySpringCGLIB$$9cf674b6.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.example.demo.BatchConfig$$EnhancerBySpringCGLIB$$3396cdcd.masterStep(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 43 common frames omitted
Caused by: java.lang.IllegalStateException: No context holder available for step scope
at org.springframework.batch.core.scope.StepScope.getContext(StepScope.java:167) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.scope.StepScope.get(StepScope.java:99) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
... 58 common frames omitted
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
@Bean
@StepScope
public Step slaveStep(@Value("#{stepExecutionContext[userId]}") String userId) {
return this.stepBuilderFactory.get("partStep").tasklet(((contribution, chunkContext) -> {
log.info("Current thread=" + Thread.currentThread().getName() + " and i process userId=" + userId);
return RepeatStatus.FINISHED;
})).build();
}
@Bean
public Step slaveStep() {
return this.stepBuilderFactory.get("partStep").tasklet(tasklet(null)).build();
}
@Bean
@StepScope
public Tasklet tasklet(@Value("#{stepExecutionContext[userId]}") String userId) {
return (contribution, chunkContext) -> {
log.info("Current thread=" + Thread.currentThread().getName() + " and i process userId=" + userId);
return RepeatStatus.FINISHED;
};
}