transactionAdviser中的NullPointerException（Spring啟動應用程序）

Question

在開發Spring Boot應用程序時，我遇到了一個奇怪的異常。 我瀏覽了很多，但找不到多少救援。 這是我有的：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embeddedServletContainerCustomizerBeanPostProcessor': BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.config.internalTransactionAdvisor' defined in class path resource [org/springframework/transaction/annotation/ProxyTransactionManagementConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor]: Factory method 'transactionAdvisor' threw exception; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:478) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:240) ~[spring-context-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:697) ~[spring-context-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:526) ~[spring-context-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT]
        at com.webstore.web.WebstoreWebApplication.main(WebstoreWebApplication.java:9) [classes/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_101]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_101]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101]
        at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.4.0.BUILD-20160727.140415-584.jar:1.4.0.BUILD-SNAPSHOT]
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.config.internalTransactionAdvisor' defined in class path resource [org/springframework/transaction/annotation/ProxyTransactionManagementConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor]: Factory method 'transactionAdvisor' threw exception; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:92) ~[spring-aop-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:101) ~[spring-aop-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.findCandidateAdvisors(AnnotationAwareAspectJAutoProxyCreator.java:85) ~[spring-aop-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:103) ~[spring-aop-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:249) ~[spring-aop-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:988) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:959) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:472) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        ... 19 common frames omitted
    Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor]: Factory method 'transactionAdvisor' threw exception; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        ... 35 common frames omitted
    Caused by: java.lang.NullPointerException: null
        at org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration.transactionAdvisor(ProxyTransactionManagementConfiguration.java:46) ~[spring-tx-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$612e1225.CGLIB$transactionAdvisor$2(<generated>) ~[spring-tx-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$612e1225$$FastClassBySpringCGLIB$$85e1d6f0.invoke(<generated>) ~[spring-tx-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) ~[spring-context-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$612e1225.transactionAdvisor(<generated>) ~[spring-tx-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_101]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_101]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101]
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.2.BUILD-20160727.145112-33.jar:4.3.2.BUILD-SNAPSHOT]
        ... 36 common frames omitted

該項目運行沒有錯誤，並正常工作。 我沒有對代碼進行任何更改，然后在一瞬間我得到了這個例外。

這是我的JpaConfig：

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories({
        "com.webstore.common.repository.jpa",
        "com.webstore.web.repository.jpa"
})
public class JpaConfig implements TransactionManagementConfigurer {

    @Value("${dataSource.url}")
    private String datasourceUrl;
    @Value("${dataSource.username}")
    private String datasourceUsername;
    @Value("${dataSource.password}")
    private String datasourcePassword;
    @Value("${dataSource.driverClassName}")
    private String datasourceDriverClassName;
    @Value("${hibernate.dialect}")
    private String hibernateDialect;
    @Value("${hibernate.hbm2ddl.auto}")
    private String hibernateHbm2ddlAuto;

    @Bean
    public DataSource configureDataSource() {
        HikariConfig hikariConfig = new HikariConfig();
        hikariConfig.setDriverClassName(datasourceDriverClassName);
        hikariConfig.setJdbcUrl(datasourceUrl);
        hikariConfig.setUsername(datasourceUsername);
        hikariConfig.setPassword(datasourcePassword);
        return new HikariDataSource(hikariConfig);
    }

    @Bean(name = "entityManagerFactory")
    public LocalContainerEntityManagerFactoryBean configureEntityManagerFactory() {
        LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactoryBean.setDataSource(configureDataSource());
        entityManagerFactoryBean.setPackagesToScan("com.webstore");
        entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());

        Properties jpaProperties = new Properties();
        jpaProperties.put(org.hibernate.cfg.Environment.DIALECT, hibernateDialect);
        jpaProperties.put(org.hibernate.cfg.Environment.HBM2DDL_AUTO, hibernateHbm2ddlAuto);
        entityManagerFactoryBean.setJpaProperties(jpaProperties);

        return entityManagerFactoryBean;
    }

    @Bean
    @Override
    public PlatformTransactionManager annotationDrivenTransactionManager() {
        return new JpaTransactionManager();
    }
}

這是我的回購鏈接： https ： //github.com/oler117/oler-web-store

提前致謝！

Answer 1

我發現你在你的pom.xml中依賴於快照版本控制。這意味着你將提取任何最近可能沒有完全無bug的版本。 如果您查看錯誤消息，您將看到

spring-boot-1.4.0.BUILD-20160727.140415-585.jar:1.4.0.BUILD-SNAPSHOT

這是今天構建的版本，可能不完全穩定。 而是更改您的pom以使用當前的一般可用性版本來獲得穩定性

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.6.RELEASE</version>
</parent>