小编Sel*_* Ok的帖子

根据文档, spring批处理管理员很容易嵌入到现有的应用程序中.只需复制web.xml和index.jsp,然后添加所需的依赖项就足以让它工作.

但是,如果我想在现有的春季启动项目中使用它,它会变得更糟.根据这个例子,配置有点hacky但它​​的工作原理.我尝试@EnableBatchProcessing在配置bean中使用注释.然后我得到以下异常.

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobBuilders' defined in class path resource [org/springframework/batch/core/configuration/annotation/SimpleBatchConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.batch.core.configuration.annotation.JobBuilderFactory org.springframework.batch.core.configuration.annotation.AbstractBatchConfiguration.jobBuilders() throws java.lang.Exception] threw exception; nested exception is java.lang.ClassCastException: org.springframework.batch.core.repository.support.JobRepositoryFactoryBean$$EnhancerBySpringCGLIB$$49fa0273 cannot be cast to org.springframework.batch.core.repository.JobRepository
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:597)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1095)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:990)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691) …

在我们的项目中，我们遇到一个奇怪的问题，即日志文件中存在重复的日志条目。

• 我们有多个附加程序，但只有一个记录器。
• 如果使用 java -jar 在本地计算机上启动 spring boot 应用程序，则问题无法重现。
• 仅当应用程序作为服务启动时才会出现此问题。

我该如何解决这个问题。