spring - 在我的 Spring 批处理中添加 maven 依赖项会出现特定错误

Question

我正在处理一个批次，但遇到了一个问题。我已经确定了我的问题的原因，但我无法解决它。

一旦我在我的 pom 中添加了一个依赖项，我就会开始收到一个错误

Maven 依赖项是

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-jpa</artifactId>
</dependency>

我的pom如下图

    <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 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>
  <groupId>com.edf.fr.batch</groupId>
  <artifactId>edf-batch</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
   </parent>

    <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.hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
        </dependency>
        <dependency>
            <groupId>postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.1-901-1.jdbc4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

我得到的错误是这个

java.lang.NoClassDefFoundError: javax/persistence/EntityManagerFactory at org.springframework.data.jpa.util.BeanDefinitionUtils.(BeanDefinitionUtils.java:53) ~[spring-data-jpa-1.11.6.RELEASE.jar:na] at org.springframework.data.jpa.repository.support.EntityManagerBeanDefinitionRegistrarPostProcessor.postProcessBeanFactory(EntityManagerBeanDefinitionRegistrarPostProcessor.java:54) ~[spring-data-jpa-1.11.6.RELEASE.jar:na] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:281) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:176) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:525) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10) [classes/:na] Caused by: java.lang.ClassNotFoundException: javax.persistence.EntityManagerFactory at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_60] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_60] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_60] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_60] ... 12 common frames omitted

2017-08-14 16:18:43.676 INFO 11676 --- [ main] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@48a242ce: startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context hierarchy 2017-08-14 16:18:43.677 WARN 11676 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception thrown from LifecycleProcessor on context close

java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.context.annotation.AnnotationConfigApplicationContext@48a242ce: startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context hierarchy at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:427) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:999) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:958) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:750) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10) [classes/:na]

2017-08-14 16:18:43.678 ERROR 11676 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception

java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.context.annotation.AnnotationConfigApplicationContext@48a242ce: startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context hierarchy at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:414) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.destroySingletons(FactoryBeanRegistrySupport.java:230) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968) [spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1030) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1006) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:958) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:750) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10) [classes/:na]

Answer 1

从给定的堆栈跟踪中，您可以看到未找到某些类，因为您使用的是 spring boot，spring boot 使用包含多个依赖项的元依赖项，如 spring-boot-cookbook 中所述

Spring Boot aims to simplify the process of getting started with an application creation. Spring Boot starters are bootstrap libraries that contain a collection of all the relevant transitive dependencies that are needed to start a particular functionality

spring-data-jpa 不够用，你还需要一些其他的依赖，使用 spring-boot-starter-data-jpa

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>