Question

我已经使用spring-boot-starter-data-jpa用Spring Boot和JPA创建了POC，我的解决方案运行得很好。当我尝试向使用 Spring 4 和 hibernate JPA 2.1 版本的旧项目中添加相同的解决方案时，就会出现我的问题。当我在weblogic中部署战争时，遇到的第一个错误是无法自动装配存储库，因此我添加了@EnableJpaRepositories。我什至尝试添加spring.datasource.jndi-name=EXAMPLE_Data_Source，其中EXAMPLE_Data_Source是我的weblogic数据源，但是没有运气。

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;

存储库类：

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中部署的旧的Spring项目。

问题1：这种解决我的问题的方法是否适用于Spring框架或仅适用于Springboot？

问题2：我缺少哪些配置？

问题3：请给我指出一个可行的示例。我正在努力使这项工作。

Spring webmvc和spring-tx版本是4.0.6

请在您的说明中更加详细。我还很初级。

谢谢。

Answer 1

您必须配置Under Beans

DriverManagerDataSource
LocalContainerEntityManagerFactoryBean
JpaTransactionManager

请refer这个例子

Answer 2

我使用的是基于注释的配置，所以经过2天的使用以下配置，我解决了该问题：

@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;
}

在Weblogic中进行部署时，努力使JPA与Spring配合使用

2 个答案: