我已将Spring Data Neo4j 4
个应用程序移植到Spring Boot 1.5.1
。在Embedded Tomcat 8.5.11
,一切正常但在Standalone Tomcat 8.5.11
失败,但有以下异常:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [com/example/domain/api/configuration/Neo4jConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.neo4j.ogm.session.SessionFactory]: Factory method 'sessionFactory' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 117 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.neo4j.ogm.session.SessionFactory]: Factory method 'sessionFactory' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
... 126 common frames omitted
Caused by: java.lang.NullPointerException: null
at org.neo4j.ogm.metadata.DomainInfo.registerDefaultMethodConverters(DomainInfo.java:379)
at org.neo4j.ogm.metadata.DomainInfo.postProcessMethods(DomainInfo.java:215)
at org.neo4j.ogm.metadata.DomainInfo.finish(DomainInfo.java:159)
at org.neo4j.ogm.scanner.ClassPathScanner.scan(ClassPathScanner.java:148)
at org.neo4j.ogm.metadata.DomainInfo.load(DomainInfo.java:338)
at org.neo4j.ogm.metadata.DomainInfo.<init>(DomainInfo.java:62)
at org.neo4j.ogm.MetaData.<init>(MetaData.java:48)
at org.neo4j.ogm.session.SessionFactory.<init>(SessionFactory.java:62)
at com.example.domain.api.configuration.Neo4jConfig.sessionFactory(Neo4jConfig.java:26)
at com.example.domain.api.configuration.Neo4jConfig$$EnhancerBySpringCGLIB$$59f65b77.CGLIB$sessionFactory$0(<generated>)
at com.example.domain.api.configuration.Neo4jConfig$$EnhancerBySpringCGLIB$$59f65b77$$FastClassBySpringCGLIB$$f50f6aaa.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356)
at com.example.domain.api.configuration.Neo4jConfig$$EnhancerBySpringCGLIB$$59f65b77.sessionFactory(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 127 common frames omitted
这是我的Neo4Config:
@Configuration
@EnableNeo4jRepositories(basePackages = "com.example.domain.repository")
@EnableTransactionManagement
public class Neo4jConfig {
final static Logger logger = LoggerFactory.getLogger(Neo4jConfig.class);
@Bean
public Neo4jTransactionManager transactionManager() throws Exception {
return new Neo4jTransactionManager(sessionFactory());
}
@Bean
public SessionFactory sessionFactory() {
return new SessionFactory("com.example.domain.model");
}
}
这可能是什么原因以及如何解决?
已更新
看起来这是Eclipse增量构建问题。从控制台(通过Maven命令)一切正常。