当我在weblogic中部署时，苦苦于让JPA使用Spring

Question

我使用spring-boot-starter-data-jpa创建了一个带有Spring Boot和JPA的POC，我的解决方案效果非常好。当我尝试将相同的解决方案添加到使用Spring 4和hibernate JPA 2.1版本的旧项目时，我的问题出现了。当我在weblogic中部署我的战争时，我得到的第一个错误是无法自动装配存储库所以我添加了@EnableJpaRepositories。我甚至试图添加spring.datasource.jndi-name=EXAMPLE_Data_Source，其中EXAMPLE_Data_Source是我的weblogic数据源，但没有运气。

应用程序类：

@Configuration
@EnableWs
@ComponentScan("com.example.package")
@EnableJpaRepositories(basePackages = {"com.example.repository","com.example.entity"})
public class AppConfig extends WsConfigurerAdapter { //WsConfigurerAdapter  is spring-ws-core 2.2.0 Release

@Autowire
MyRepository  repository; 

Repository类：

public interface MyRepository extends JpaRepository<EntityClass, EntityPKey> {

    @Query("select c from EntityClass c where ID = :param1 and  TYPE = :param2 and :param3 between FROM_DATE and TO_DATE ")
    EntityClass entityClass(@Param("param1") int param1, @Param("param2")
            char param2, @Param("param3") Date param3);
}

现在我得到以下错误：

org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean  named 'entityManagerFactory' is defined" weblogic.application.ModuleException: 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean   named 'entityManagerFactory' is defined
    at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:140)
    at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
    at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:233)
    at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:228)
    at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
    Truncated. see log file for complete stacktrace
Caused By: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:641)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1157)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:280)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
    Truncated. see log file for complete stacktrace

我必须让它处理在weblogic中部署的旧Spring项目。

问题1：这种解决我的问题的方式是适用于Spring框架还是仅适用于Springboot？

问题2：我缺少哪些配置？

问题3：请指出一个有效的例子。我正在努力使这项工作。

Spring webmvc和spring-tx是4.0.6版

请在解释中详细说明一下。我还很小。

提前致谢。

Answer 1

您必须配置Below Beans

DriverManagerDataSource
LocalContainerEntityManagerFactoryBean
JpaTransactionManager

请refer这个例子

Answer 2

我使用基于注释的配置，所以我使用以下配置在2天后解决了它：

@Bean
public DataSource jndiDataSource() {
    final JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
    dsLookup.setResourceRef(true);

    return dsLookup.getDataSource(dataSourceName); // where dataSourceName is your weblogic data source
}

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws NamingException {
    LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
    factoryBean.setDataSource(jndiDataSource());
    factoryBean.setJpaVendorAdapter(jpaVendorAdapter());
    factoryBean.setPackagesToScan("com.example.entity");
    return factoryBean;
}

@Bean
public JpaVendorAdapter jpaVendorAdapter() {
    HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
    hibernateJpaVendorAdapter.setShowSql(false);
    hibernateJpaVendorAdapter.setGenerateDdl(true);
    hibernateJpaVendorAdapter.setDatabase(Database.ORACLE);
    return hibernateJpaVendorAdapter;
}

@Bean
public PlatformTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
    JpaTransactionManager txManager = new JpaTransactionManager();
    txManager.setEntityManagerFactory(entityManagerFactory);
    return txManager;
}