我使用了基于Java的配置。当我使用jpa存储库时,我得到了can not create inner bean exception of type shared entity manger creator
。
Spring contex config:
@Configuration
@ComponentScan(basePackages = { "com.sample.proj.controller" })
@EnableWebMvc
@EnableTransactionManagement
@EnableJpaRepositories("com.sample.proj.domain")
@PropertySource("classpath:application.properties")
public class ServletContextConfig {
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver";
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_DATABASE_PASSWORD = "db.password";
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_FORMAT_SQL = "hibernate.format_sql";
private static final String PROPERTY_NAME_HIBERNATE_NAMING_STRATEGY = "hibernate.ejb.naming_strategy";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
private static final String PROPERTY_NAME_HIBERNATE_HBN2DDL_SQL = "hibernate.hbm2ddl.auto";
@Resource
private Environment environment;
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER));
dataSource.setUrl(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_URL));
dataSource.setUsername(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME));
dataSource.setPassword(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD));
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean()
throws Exception {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean
.setPackagesToScan(new String[] { "com.sample.proj.domain" });
entityManagerFactoryBean
.setPersistenceProviderClass(HibernatePersistence.class);
Properties jproperties = new Properties();
jproperties.put("hibernate.dialect", environment
.getRequiredProperty(PROPERTY_NAME_HIBERNATE_DIALECT));
jproperties.put("hibernate.format_sql", environment
.getRequiredProperty(PROPERTY_NAME_HIBERNATE_FORMAT_SQL));
jproperties.put("hibernate.ejb.naming_strategy", environment
.getRequiredProperty(PROPERTY_NAME_HIBERNATE_NAMING_STRATEGY));
jproperties.put("hibernate.show_sql", environment
.getRequiredProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));
jproperties.put("hibernate.hbm2ddl.auto", environment
.getRequiredProperty(PROPERTY_NAME_HIBERNATE_HBN2DDL_SQL));
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
entityManagerFactoryBean.setJpaVendorAdapter(vendorAdapter);
entityManagerFactoryBean.setJpaProperties(jproperties);
return entityManagerFactoryBean;
}
}
Webintializer:
@Override
public void onStartup(ServletContext container) {
// Create the 'root' Spring application context
AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
rootContext.register(ServletContextConfig.class);
// Manage the lifecycle of the root application context
container.addListener(new ContextLoaderListener(rootContext));
// Create the dispatcher servlet's Spring application context
AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext();
dispatcherContext.register(ServletContextConfig.class);
// Register and map the dispatcher servlet
ServletRegistration.Dynamic dispatcher = container.addServlet(
"dispatcher", new DispatcherServlet(dispatcherContext));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping("/");
}
存储库:
public interface PersonRepository extends JpaRepository<Person, String> {
}
服务类:
@Service
@Transactional
public class PersonService {
@Autowired
PersonRepository personRepository;
public Person saveDetails(Person person) {
// System.out.println("Service Class:Person Name:"+
// person.getPersonName());
System.out.println("Executed");
return person;
}
}
控制器类:
@RequestMapping(value = "/addPerson", method = RequestMethod.POST)
public String addperson(@RequestParam("personName") String name,
@RequestParam("personAddress") String address, Model model) {
System.out.println("Name:" + name);
System.out.println("Address:" + address);
Person person = new Person();
person.setPersonId(1);
person.setPersonName(name);
person.setPersonAddress(address);
personService.saveDetails(person);
model.addAttribute("result", "Your record inserted successfully");
return HOME_VIEW;
}
域类:
@Entity
@Table(name = "PERSON")
public class Person implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
private Integer personId;
private String personName;
private String personAddress;
//getters and setters...
}
异常堆栈跟踪如下:
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personRepository': Cannot create inner bean '(inner bean)' 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)#1': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:282)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:126)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:589)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:650)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1582)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
答案 0 :(得分:4)
首先,如果仔细查看异常跟踪,您会发现ContextLoaderListner
实际上抱怨No bean named 'entityManagerFactory' is defined
是无法创建personRepository
的根本原因。< / p>
由于我不知道具体的项目结构是什么,您可以尝试将bean名称与LocalContainerEntityManagerFactoryBean
放在一起,以便Spring可以找到并注入它。
即。像这样:
@Bean(name = "entityManagerFactoryBean")
public LocalContainerEntityManagerFactoryBean ...
答案 1 :(得分:3)
使用
主Application.java文件中的@EnableJpaRepositories(&#34; some.package.ref.other.than.default&#34)
为我做了诀窍。
我的大部分文件都位于包
中com.example.cortifero
因此,我已经编写了我的代码(Application.java):
@EnableJpaRepositories(basePackages="com.example.cortifero.jpa.service") //notice this line
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
答案 2 :(得分:2)
最后,我得到了这个解决方案。我在配置文件中进行了此更改。
成功执行。
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = { "com.sample.proj.repo" })
@PropertySource("classpath:application.properties")
public class JpaConfig {
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver";
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_DATABASE_PASSWORD = "db.password";
@Resource
private Environment environment;
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER));
dataSource.setUrl(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_URL));
dataSource.setUsername(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME));
dataSource.setPassword(environment
.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD));
return dataSource;
}
@Bean
public PlatformTransactionManager transactionManager() {
EntityManagerFactory factory = entityManagerFactory();
return new JpaTransactionManager(factory);
}
@Bean
public EntityManagerFactory entityManagerFactory() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(Boolean.TRUE);
vendorAdapter.setShowSql(Boolean.TRUE);
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setJpaVendorAdapter(vendorAdapter);
factory.setPackagesToScan("com.sample.proj.domain");
factory.setDataSource(dataSource());
factory.afterPropertiesSet();
factory.setLoadTimeWeaver(new InstrumentationLoadTimeWeaver());
return factory.getObject();
}
@Bean
public HibernateExceptionTranslator hibernateExceptionTranslator() {
return new HibernateExceptionTranslator();
}