通过使用 Spring Data，我正在开发一个 java 项目，该项目定义规则、存储库和服务，以便按照 JPA 规范执行数据访问。
这是我的源代码:
DAL配置:
@Configuration
@ComponentScan(basePackages = { "my.project.dal" })
@PropertySource("classpath:dbconnection.properties")
@EnableJpaRepositories("my.project.dal.repository")
@EnableTransactionManagement
public class DALConfig {
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver_class";
private static final String PROPERTY_NAME_DATABASE_PASSWORD = "db.password";
private static final String PROPERTY_NAME_DATABASE_URL = "db.url";
private static final String PROPERTY_NAME_DATABASE_USERNAME = "db.username";
private static final String PROPERTY_NAME_POOL_INITIAL_SIZE = "pool.initialsize";
private static final String PROPERTY_NAME_POOL_MAX_IDLE = "pool.maxidle";
private static final String PROPERTY_NAME_DAL_CLASSES_PACKAGE = "entities.packages_to_scan";
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.showsql";
private static final String PROPERTY_NAME_HIBERNATE_FORMAT_SQL = "hibernate.format_sql";
@Autowired
private Environment environment;
/**
* Method which handles the <i>dataSource</i> bean creation.
* @return Returns a {@link DataSource} class instance which connects to the PRISMA platform DB.
*/
@Bean
public DataSource dataSource() {
Properties props = new Properties();
props.put("driverClassName", environment.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER));
props.put("url", environment.getRequiredProperty(PROPERTY_NAME_DATABASE_URL));
props.put("username", environment.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME));
props.put("password", environment.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD));
props.put("initialSize", environment.getRequiredProperty(PROPERTY_NAME_POOL_INITIAL_SIZE));
props.put("maxIdle", environment.getRequiredProperty(PROPERTY_NAME_POOL_MAX_IDLE));
BasicDataSource bds = null;
try {
bds = BasicDataSourceFactory.createDataSource(props);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return bds;
}
/**
* Method which handles the <i>persistenceExceptionTranslationPostProcessor</i> bean creation.
* @return Returns a {@link PersistenceExceptionTranslationPostProcessor} class instance.
*/
@Bean
public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
return new PersistenceExceptionTranslationPostProcessor();
}
/**
* Method which handles the <i>hibernateExceptionTranslator</i> bean creation.
* @return Returns a {@link HibernateExceptionTranslator} class instance which manages the Hibernate Exceltions translation into Spring's ones.
*/
@Bean
public HibernateExceptionTranslator hibernateExceptionTranslator(){
return new HibernateExceptionTranslator();
}
/**
* Method which handles the <i>transactionManager</i> bean creation.
* @return Returns a {@link PlatformTransactionManager} class instance.
* @throws ClassNotFoundException
*/
@Bean
public PlatformTransactionManager transactionManager() throws ClassNotFoundException {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
return transactionManager;
}
/**
* Method which handles the <i>entityManagerFactory</i> bean creation.
* @return Returns a {@link LocalContainerEntityManagerFactoryBean} class instance.
* @throws ClassNotFoundException
*/
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws ClassNotFoundException {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean.setPackagesToScan(environment.getRequiredProperty(PROPERTY_NAME_DAL_CLASSES_PACKAGE));
entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
Properties jpaProperties = new Properties();
jpaProperties.put(PROPERTY_NAME_HIBERNATE_DIALECT, environment.getRequiredProperty(PROPERTY_NAME_HIBERNATE_DIALECT));
jpaProperties.put(PROPERTY_NAME_HIBERNATE_FORMAT_SQL, environment.getRequiredProperty(PROPERTY_NAME_HIBERNATE_FORMAT_SQL));
jpaProperties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, environment.getRequiredProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));
entityManagerFactoryBean.setJpaProperties(jpaProperties);
return entityManagerFactoryBean;
}
}
IUserRepository:
@Repository
public interface IUserRepository extends CrudRepository<User, String> { }
用户服务:
@Service
public class UserService {
@Autowired
private IUserRepository repository;
@PersistenceContext
EntityManager em;
/**
* Method which finds a {@link User} by the provided <i>username</i>.
*
* @param username
* The username of the {@link User} to be found.
* @return Returns the found {@link User}.
* @throws DataRetrievalFailureException
* If the User doesn't exist in the DB.
* @throws IllegalArgumentException
* If the <i>username</i> is <i>null</i>
*/
public User find(String username) throws DataRetrievalFailureException,
IllegalArgumentException {
User user = repository.findOne(username);
if (user == null)
throw new DataRetrievalFailureException("User with username = \""
+ username + "\" not found");
return user;
}
/**
* Method which inserts the provided {@link User}.
*
* @param user
* The {@link User} to be inserted.
* @return Returns the inserted {@link User}. Use the returned instance for
* further operations as the insert operation might have changed the
* entity instance completely.
* @throws DuplicateKeyException
* If the <i>user</i> already exists in the DB.
* @throws IllegalArgumentException
* If the username of the <i>user</i> is <i>null</i>
* @throws JpaSystemException
* If a unique field is already in the DB.
*/
public User insert(User user) throws DuplicateKeyException,
JpaSystemException {
if (repository.exists(user.getUsername()))
throw new DuplicateKeyException("User with username = \""
+ user.getUsername() + "\" already exists");
return repository.save(user);
}
/**
* Method which deletes the {@link User} identifiedy by <i>username</i>.
*
* @param username
* The username of the {@link User} to be deleted.
* @throws EmptyResultDataAccessException
* If a {@link User} with the provided <i>username</i> doesn't
* exist in the DB.
* @throws IllegalArgumentException
* If the <i>username</i> is <i>null</i>
*/
public void delete(String username) throws EmptyResultDataAccessException,
IllegalArgumentException {
repository.delete(username);
}
/**
* Method which updates the provided {@link User} <i>user</i> in the DB.
*
* @param user
* The updated {@link User}.
* @return Returns the updated {@link User}. Use the returned instance for
* further operations as the insert operation might have changed the
* entity instance completely.
* @throws DataRetrievalFailureException
* If the <i>user</i> doesn't exist in the DB.
* @throws IllegalArgumentException
* If the username of the <i>user</i> is <i>null</i>
*/
public User update(User user) throws DataRetrievalFailureException {
if (!repository.exists(user.getUsername()))
throw new DataRetrievalFailureException("User with username = \""
+ user.getUsername() + "\" not found");
return repository.save(user);
}
}
通过使用 Maven，我生成了 jar，然后将其添加到另一个 Spring boot 项目中。
在编译时，它返回此错误:
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.project.dal.service.UserService it.project.businesslayer.UserManagement.userService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private it.project.dal.repository.IUserRepository it.project.dal.service.UserService.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': Cannot create inner bean '(inner bean)#2c19cee5' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2c19cee5': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 106 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private it.project.dal.repository.IUserRepository it.project.dal.service.UserService.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': Cannot create inner bean '(inner bean)#2c19cee5' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2c19cee5': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 108 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private it.project.dal.repository.IUserRepository it.project.dal.service.UserService.repository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': Cannot create inner bean '(inner bean)#2c19cee5' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2c19cee5': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 119 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserRepository': Cannot create inner bean '(inner bean)#2c19cee5' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2c19cee5': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:290)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:129)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1456)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1197)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 121 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2c19cee5': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:336)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:632)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:442)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
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.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:276)
... 134 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [it/project/dal/config/DALConfig.class]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
... 142 common frames omitted
Caused by: java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
at org.hibernate.jpa.boot.internal.PersistenceUnitInfoDescriptor.getValidationMode(PersistenceUnitInfoDescriptor.java:99)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.mergePropertySources(EntityManagerFactoryBuilderImpl.java:567)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:212)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:186)
at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:45)
at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:57)
at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:150)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:336)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
... 149 common frames omitted
如何修复此错误？
注意:实体类位于另一个项目中。
最佳答案
将 javax.persistence 依赖项更改为
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency
getValidationMode() exists only in JPA 2
关于java - Spring Data 和 JPA 的编译时错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23674788/