Spring Batch的世界您好

我试图做this Spring batch tutorial Spring Batch的世界您好

但我发现了与该jobRepository以下错误。

我读过jobRepository在创建工作时是强制性的，但我不知道为什么它没有被创建。我已经按照教程加载了所有的依赖关系。

有人能帮我指点正确的方向吗？提前致谢。

Jun 03, 2017 8:13:18 PM 
    org.springframework.context.support.AbstractApplicationContext 
    prepareRefresh 
    INFO: Refreshing 
    org[email protected]579bb367: 
    startup date [Sat Jun 03 20:13:18 AEST 2017]; root of context hierarchy 
    Jun 03, 2017 8:13:18 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions 
INFO: Loading XML bean definitions from class path resource [spring/batch/jobs/job-hello-world.xml] 
Jun 03, 2017 8:13:18 PM org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition 
INFO: Overriding bean definition for bean 'helloWorldJob': replacing [Generic bean: class [org.springframework.batch.core.configuration.xml.SimpleFlowFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] with [Generic bean: class [org.springframework.batch.core.configuration.xml.JobParserJobFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] 
Jun 03, 2017 8:13:18 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons 
INFO: Pre-instantiating singletons in org.s[email protected]3532ec19: defining beans [report,itemProcessor,org.springframework.batch.core.scope.internalStepScope,org.springframework.beans.factory.config.CustomEditorConfigurer,org.springframework.batch.core.configuration.xml.CoreNamespacePostProcessor,step1,helloWorldJob,cvsFileItemReader,xmlItemWriter,reportMarshaller]; root of factory hierarchy 
Jun 03, 2017 8:13:18 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromClasses 
INFO: Creating JAXBContext with classes to be bound [class com.mkyong.model.Report] 
Jun 03, 2017 8:13:18 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons 
INFO: Destroying singletons in org.s[email protected]3532ec19: defining beans [report,itemProcessor,org.springframework.batch.core.scope.internalStepScope,org.springframework.beans.factory.config.CustomEditorConfigurer,org.springframework.batch.core.configuration.xml.CoreNamespacePostProcessor,step1,helloWorldJob,cvsFileItemReader,xmlItemWriter,reportMarshaller]; root of factory hierarchy 
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'step1': Cannot resolve reference to bean 'jobRepository' while setting bean property 'jobRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'jobRepository' is defined 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329) 
     at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:608) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) 
    at com.mkyong.App.main(App.java:18) 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'jobRepository' is defined 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:568) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1102) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:278) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323) 
    ... 15 more 

Process finished with exit code 1

来源

2017-06-03 Noobzoned

作为一个方面说明，该教程是*非常*过时。我建议使用spring.io提供的指南：https：//spring.io/guides/gs/batch-processing/ –

首先，这似乎是一个类别太复杂的教程 - “Hello World”。其次，如果你现在开始，你不应该使用基于XML的配置 - 使用基于注释的配置，除非你有非常有说服力的理由这样做 - 找到一个基于Java配置的教程。

关于你的错误，如果你走那个教程，在context.xml中，他被定义库，

<!-- stored job-meta in memory --> 
    <!-- 
    <bean id="jobRepository" 
     class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean"> 
     <property name="transactionManager" ref="transactionManager" /> 
    </bean> 
    --> 

    <!-- stored job-meta in database --> 
    <bean id="jobRepository" 
     class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="transactionManager" ref="transactionManager" /> 
     <property name="databaseType" value="mysql" /> 
    </bean>

您还没有表现出任何代码，所以我不能肯定你是什么失踪。

如果您没有使用任何数据库，请使用注释掉的bean - MapJobRepositoryFactoryBean，但您必须确保某些内存数据库（如HSQL，H2）在您的类路径中。这些依赖关系不存在。

如果您有一个mysql数据库，请使用现有bean，如context.xml中所示，并且包含mysql依赖项。

来源

2017-06-04 06:47:37

Spring Batch的世界您好

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