原因:java.lang.IllegalStateException:EntityManagerFactory不能为null [英] Caused by: java.lang.IllegalStateException: EntityManagerFactory must not be null
本文介绍了原因:java.lang.IllegalStateException:EntityManagerFactory不能为null的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我以前使用的是Spring Boot 1.4.2.RELEASE 和Hibernate 5.0.11.Final ，这是我的数据库配置类:
I previously was using Spring Boot 1.4.2.RELEASE and Hibernate 5.0.11.Final, and this was my Database configuration class:
@Configuration
@EnableTransactionManagement
public class DataBaseConfiguration {
@Bean(name = "sessionFactory")
public HibernateJpaSessionFactoryBean sessionFactory() {
return new HibernateJpaSessionFactoryBean();
}
@Bean
public HibernateTransactionManager transactionManager() {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
}
这是 application.yml :
spring:
application:
name: test
profiles:
active: dev
datasource:
type: com.zaxxer.hikari.HikariDataSource
url: jdbc:mysql://localhost:3306/test?useUnicode=yes&characterEncoding=utf8&useSSL=false
username: test
password: test
hikari:
maximum-pool-size: 50
data-source-properties:
pool-name: test
cachePrepStmts: true
prepStmtCacheSize: 250
prepStmtCacheSqlLimit: 2048
useServerPrepStmts: true
jpa:
open-in-view: true
database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
database: MYSQL
show-sql: true
properties:
hibernate.enable_lazy_load_no_trans: true
hibernate.cache.use_second_level_cache: true
hibernate.cache.use_query_cache: false
hibernate.generate_statistics: true
hibernate.dialect: org.hibernate.dialect.MySQL5Dialect
hibernate.current_session_context_class: org.springframework.orm.hibernate5.SpringSessionContext
hibernate.hbm2ddl.auto: update
这是GenericRepository类:
@Repository
public abstract class GenericRepository<T extends BaseEntity, PK extends Serializable> implements IGenericRepository<T, PK> {
protected Class<T> domainClass = getDomainClass();
protected abstract Class<T> getDomainClass();
@Autowired
SessionFactory sessionFactory;
public Session getSession() {
try {
return sessionFactory.getCurrentSession();
}
catch (Exception e) {
log.error(e.getMessage());
}
return sessionFactory.openSession();
}
@Override
public void add(T entity) {
Session session = getSession();
session.save(entity);
}
// Other DAO layer methods here, removed for brevity
}
这是 pom.xml 的依赖项部分:
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
</dependencies>
然后，我将Spring Boot版本更改为 1.5.9.RELEASE ，将Hibernate版本更改为 5.2.12.Final ，然后在运行该应用程序时遇到此异常:
then, I changed Spring Boot version to 1.5.9.RELEASE and Hibernate version to 5.2.12.Final and then when I run the application, got this exception:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chargeRepository': Unsatisfied dependency expressed through field 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: EntityManagerFactory must not be null
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at com.rgh.Application.main(Application.java:28) [framework-0.0.1-releases.jar:0.0.1-releases]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_102]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_102]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_102]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_102]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.9.RELEASE.jar:1.5.9.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: EntityManagerFactory must not be null
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:127) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1634) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:220) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1018) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:345) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.orm.jpa.EntityManagerFactoryUtils.findEntityManagerFactory(EntityManagerFactoryUtils.java:143) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.orm.jpa.EntityManagerFactoryAccessor.setBeanFactory(EntityManagerFactoryAccessor.java:137) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1647) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1615) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
... 22 common frames omitted
Caused by: java.lang.IllegalStateException: EntityManagerFactory must not be null
at org.springframework.util.Assert.state(Assert.java:70) ~[spring-core-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.orm.jpa.vendor.HibernateJpaSessionFactoryBean.getObject(HibernateJpaSessionFactoryBean.java:70) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.orm.jpa.vendor.HibernateJpaSessionFactoryBean.getObject(HibernateJpaSessionFactoryBean.java:64) ~[spring-orm-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168) ~[spring-beans-4.3.13.RELEASE.jar:4.3.13.RELEASE]
... 43 common frames omitted
最后，当我在上述版本更改后检查DataBaseConfiguration类时，发现不推荐使用HibernateJpaSessionFactoryBean.
Finally, when I checked the DataBaseConfiguration class after above version changes, I saw that HibernateJpaSessionFactoryBean is deprecated.
然后，我检查了与该问题相同的其他问题，但未找到任何解决方案. 我应该如何更改配置才能启动应用程序?
Then I checked other question that was same this problem, but didn't find any solution. How should I change my configurations in order to get application started?
推荐答案
在这种配置下，我正在使用带有sessionfactory的Hibernate 5.2
I am using Hibernate 5.2 with sessionfactory with this configuration
@Configuration
@EnableTransactionManagement
public class DatabaseConfiguration {
@Inject
public JpaProperties prop;
@Bean
@Primary
@ConfigurationProperties("spring.datasource.hikari")
public DataSourceProperties dataSourceProperties() {
return new DataSourceProperties();
}
@Bean
@Primary
@ConfigurationProperties("spring.datasource.hikari")
public DataSource dataSource() {
return dataSourceProperties().initializeDataSourceBuilder().build();
}
@Bean("sessionFactory")
@Primary
public LocalSessionFactoryBean getSessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan("org.roshan");
sessionFactory.setAnnotatedPackages("org.roshan");
sessionFactory.setHibernateProperties(getHibernateProperties());
return sessionFactory;
}
private Properties getHibernateProperties() {
Properties p = new Properties();
p.putAll(prop.getProperties());
p.put(AvailableSettings.HBM2DDL_AUTO, prop.getHibernate().getDdlAuto());
return p;
}
@Bean
public HibernateTransactionManager transactionManager(@Autowired SessionFactory sessionFactory) {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory);
return transactionManager;
}
}
我的POM.xml属性
my POM.xml properties
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<hibernate.version>5.2.10.Final</hibernate.version>
</properties>
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