NoSuchBeanDefinitionException：没有找到依赖项的 JpaVendorAdapter 类型的合格 bean
NoSuchBeanDefinitionException: No qualifying bean of type JpaVendorAdapter found for dependency
我正在尝试在内存数据库中设置基于 Java 的 hibernate 并从测试开始使用它，但是当加载 Hibernate bean 时应用程序上下文失败。这个练习的重点是使用 CrudRepository 和 WRITE
来设置带有 CRUD 操作的简单服务
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.orm.jpa.JpaVendorAdapter] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 72 more
相关配置及源码：
hibernate.properties
jdbc.driverClassName = org.hsqldb.jdbcDriver
jdbc.url = jdbc:hsqldb:mem:press
jdbc.username = user
jdbc.password =
hibernate.dialect=org.hibernate.dialect.HSQLDialect
hibernate.show_sql = false
hibernate.format_sql = false
HibernateConfig.java - 加载失败
@Configuration
@EnableTransactionManagement
@PropertySource(value = { "classpath:hibernate.properties" })
public class HibernateConfig {
@Autowired
private Environment environment;
@Bean
public EntityManagerFactory entityManagerFactory(DataSource dataSource, JpaVendorAdapter jpaVendorAdapter) {
LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
lef.setDataSource(dataSource);
lef.setJpaVendorAdapter(jpaVendorAdapter);
lef.setPackagesToScan("net.agilob.press.entity");
return lef.getNativeEntityManagerFactory();
}
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan(new String[] { "net.agilob.press.entity" });
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
return dataSource;
}
private Properties hibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
properties.put("hibernate.hbm2ddl.auto", environment.getRequiredProperty("create-drop"));
return properties;
}
@Bean
@Autowired
public HibernateTemplate getHibernateTemplate(SessionFactory sessionFactory) {
HibernateTemplate hibernateTemplate = new HibernateTemplate(sessionFactory);
return hibernateTemplate;
}
@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory s) {
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(s);
return txManager;
}
}
AppConfig.java - 作为测试配置加载的文件
@Configuration
@ComponentScan(basePackages = "net.agilob.press.entity")
@EnableJpaRepositories(basePackages = "net.agilob.press.entity.repository")
@Import(HibernateConfig.class)
public class AppConfig {
@Bean
public PostService getPostService() {
return new PostService();
}
}
PostServiceTest.java - 这个应该创建 Post 的实例，将其保存在内存数据库中并稍后提取（只是为了看看它是否有效):
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = AppConfig.class, loader = AnnotationConfigContextLoader.class)
@Transactional
public class PostDAOTest {
@Autowired
private PostService postService;
@Before
public void setUp() {
Post post = new Post();
post.setContent("body");
post.setDescription("description");
post.setIntroduction("introduction");
post.setTitle("title");
post.setTitleBrowser("title browser");
postRepository.save(post);
}
@Test
public void testList() {
// checks if spring wiring was correct
assertNotNull("Problem with spring beans", postRepository);
assertFalse(postRepository.findTop10ByTitleOrderByIdAsc().isEmpty());
}
}
Post服务：
@Service("postService")
@Transactional
public class PostService {
@Autowired
private PostRepository postRepository;
...
}
Post存储库：
public interface PostRepository extends BaseRepository<Post, Long> {
}
我试图在 HibernateConfig 中再创建一个 @Beans 注释方法，该方法正在构建 JpaVendorAdapter 实例，但是当我 运行 测试失败时：
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.persistence.EntityManager]: Factory method 'createSharedEntityManager' 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)
... 59 more
Caused by: java.lang.NullPointerException
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.initProxyClassLoader(SharedEntityManagerCreator.java:199)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.<init>(SharedEntityManagerCreator.java:191)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:163)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:120)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:92)
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)
... 60 more
我的pom.xml
所以我认为设置中还有其他问题。
非常感谢任何有关如何以更好的方式设计和设置它的帮助。
您确定您拥有所有必需的依赖项吗？
HibernateJpaVendorAdapter 在你的类路径上可用吗？
尝试添加依赖：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
为了让您的 entityManagerFactory 知道提供者 class 以及 jpa 方言，您需要在您的 entityManagerFactory bean 上设置 jpaVendorAdaptor。这可以作为
@Bean
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
jpaVendorAdapter.setShowSql(true);
jpaVendorAdapter.setDatabase(Database.HSQL);
jpaVendorAdapter.setDatabasePlatform(MySQL5Dialect.class.getName());
jpaVendorAdapter.setGenerateDdl(false);
return jpaVendorAdapter;
}
并在您的 entityManagerFactory 中调用此方法，如下所示：
lef.setJpaVendorAdapter(jpaVendorAdapter());
我正在尝试在内存数据库中设置基于 Java 的 hibernate 并从测试开始使用它，但是当加载 Hibernate bean 时应用程序上下文失败。这个练习的重点是使用 CrudRepository 和 WRITE
来设置带有 CRUD 操作的简单服务
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.orm.jpa.JpaVendorAdapter] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 72 more
相关配置及源码：
hibernate.properties
jdbc.driverClassName = org.hsqldb.jdbcDriver
jdbc.url = jdbc:hsqldb:mem:press
jdbc.username = user
jdbc.password =
hibernate.dialect=org.hibernate.dialect.HSQLDialect
hibernate.show_sql = false
hibernate.format_sql = false
HibernateConfig.java - 加载失败
@Configuration
@EnableTransactionManagement
@PropertySource(value = { "classpath:hibernate.properties" })
public class HibernateConfig {
@Autowired
private Environment environment;
@Bean
public EntityManagerFactory entityManagerFactory(DataSource dataSource, JpaVendorAdapter jpaVendorAdapter) {
LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
lef.setDataSource(dataSource);
lef.setJpaVendorAdapter(jpaVendorAdapter);
lef.setPackagesToScan("net.agilob.press.entity");
return lef.getNativeEntityManagerFactory();
}
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan(new String[] { "net.agilob.press.entity" });
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
return dataSource;
}
private Properties hibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
properties.put("hibernate.hbm2ddl.auto", environment.getRequiredProperty("create-drop"));
return properties;
}
@Bean
@Autowired
public HibernateTemplate getHibernateTemplate(SessionFactory sessionFactory) {
HibernateTemplate hibernateTemplate = new HibernateTemplate(sessionFactory);
return hibernateTemplate;
}
@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory s) {
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(s);
return txManager;
}
}
AppConfig.java - 作为测试配置加载的文件
@Configuration
@ComponentScan(basePackages = "net.agilob.press.entity")
@EnableJpaRepositories(basePackages = "net.agilob.press.entity.repository")
@Import(HibernateConfig.class)
public class AppConfig {
@Bean
public PostService getPostService() {
return new PostService();
}
}
PostServiceTest.java - 这个应该创建 Post 的实例，将其保存在内存数据库中并稍后提取（只是为了看看它是否有效):
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = AppConfig.class, loader = AnnotationConfigContextLoader.class)
@Transactional
public class PostDAOTest {
@Autowired
private PostService postService;
@Before
public void setUp() {
Post post = new Post();
post.setContent("body");
post.setDescription("description");
post.setIntroduction("introduction");
post.setTitle("title");
post.setTitleBrowser("title browser");
postRepository.save(post);
}
@Test
public void testList() {
// checks if spring wiring was correct
assertNotNull("Problem with spring beans", postRepository);
assertFalse(postRepository.findTop10ByTitleOrderByIdAsc().isEmpty());
}
}
Post服务：
@Service("postService")
@Transactional
public class PostService {
@Autowired
private PostRepository postRepository;
...
}
Post存储库：
public interface PostRepository extends BaseRepository<Post, Long> {
}
我试图在 HibernateConfig 中再创建一个 @Beans 注释方法，该方法正在构建 JpaVendorAdapter 实例，但是当我 运行 测试失败时：
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.persistence.EntityManager]: Factory method 'createSharedEntityManager' 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)
... 59 more
Caused by: java.lang.NullPointerException
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.initProxyClassLoader(SharedEntityManagerCreator.java:199)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.<init>(SharedEntityManagerCreator.java:191)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:163)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:120)
at org.springframework.orm.jpa.SharedEntityManagerCreator.createSharedEntityManager(SharedEntityManagerCreator.java:92)
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)
... 60 more
我的pom.xml
所以我认为设置中还有其他问题。
非常感谢任何有关如何以更好的方式设计和设置它的帮助。
您确定您拥有所有必需的依赖项吗？
HibernateJpaVendorAdapter 在你的类路径上可用吗？
尝试添加依赖：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
为了让您的 entityManagerFactory 知道提供者 class 以及 jpa 方言，您需要在您的 entityManagerFactory bean 上设置 jpaVendorAdaptor。这可以作为
@Bean
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
jpaVendorAdapter.setShowSql(true);
jpaVendorAdapter.setDatabase(Database.HSQL);
jpaVendorAdapter.setDatabasePlatform(MySQL5Dialect.class.getName());
jpaVendorAdapter.setGenerateDdl(false);
return jpaVendorAdapter;
}
并在您的 entityManagerFactory 中调用此方法，如下所示：
lef.setJpaVendorAdapter(jpaVendorAdapter());