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弹簧护套2.0.0。M4和休眠5.2.11。Final找不到EntityManagerFactoryBuilder类型的bean

hibernate-5.x spring-boot

6

eztinkerdreams · 技术社区 · 9 年前

我发现的例子中没有一个表明必须为EntityManagerFactoryBuilder创建bean,那么问题是什么呢。

我试图配置完全独立的数据源,包括不同的实体管理器等。。

我的错误:

应用程序启动失败

说明:

方法entityManagerFactory的参数0需要“org”类型的bean。springframework。靴子orm。jpa。找不到EntityManagerFactoryBuilder“”。

行动:

考虑定义“org”类型的bean。springframework。靴子orm。jpa。EntityManagerFactoryBuilder”。

我的数据源配置

package ...;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

@Configuration
@EnableTransactionManagement
public class DataSourceConfiguration {


    @Primary
    @Bean()
    @ConfigurationProperties(prefix="spring.my.datasource")
    public DataSource myDataSource() {
        return DataSourceBuilder.create().build();
    }



    @Primary
    @Bean(name = "myEntityManager")
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(EntityManagerFactoryBuilder factoryBuilder,
                                                                       @Qualifier("myEntityManager") DataSource bds) {
        ...
    }
}

我的申请

@SpringBootApplication(exclude = {
        DataSourceAutoConfiguration.class,
        HibernateJpaAutoConfiguration.class,
        JpaRepositoriesAutoConfiguration.class,
        DataSourceTransactionManagerAutoConfiguration.class
})

我的Pom

2 回复 | 直到 9 年前

1

15

Snarkovski 8 年前

通过排除 HibernateJpaAutoConfiguration EntityManagerFactoryBuilder 豆

EntityManagerFactoryBuilder 豆子是由 JpaBaseConfiguration#entityManagerFactoryBuilder(JpaVendorAdapter, ObjectProvider) .

只有一个 JpaBaseConfiguration 实施- HibernateJpaConfiguration ,在以下情况下激活:

只有一个 DataSource 候选人(或其中一人被标记为 @Primary
HibernateJPA自动配置 条件为真-检查班

您应该在没有生成器的情况下创建和配置LocalContainerEntityManagerFactoryBean(就像您在自己的答案中所做的那样),或者在配置中手动创建EntityManagerFactoryBuilder,如下所示:

@Bean
public EntityManagerFactoryBuilder entityManagerFactoryBuilder() {
    return new EntityManagerFactoryBuilder(new HibernateJpaVendorAdapter(), new HashMap<>(), null);
}

2

eztinkerdreams 8 年前

在回答@Albert Bos的问题时。。。

我想这是怎么回事。

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        basePackageClasses = { MyEntityRepository.class },
        repositoryBaseClass = EntityRepositoryImpl.class,
        transactionManagerRef = "myTransactionManager",
        entityManagerFactoryRef = "myEntityManagerFactory"
)
public class MyDataSourceConfiguration { ...

@Bean(name = DATASOURCE_NAME + "DataSource")
public DataSource dataSource(@Qualifier(DATASOURCE_NAME + "DataSourceProperties") DataSourceProperties dataSourceProperties) 
{
    return DataSourceBuilder.create()
            .url(dataSourceProperties.getUrl())
            .username(dataSourceProperties.getUsername())
            .password(dataSourceProperties.getPassword())
            .driverClassName(dataSourceProperties.getDriverClassName())
            .build();
}

@Bean(name = DATASOURCE_NAME + "EntityManagerFactory")
@PersistenceContext(unitName = DATASOURCE_NAME + "PersistenceUnit")
public EntityManagerFactory entityManagerFactory(
        @Qualifier(DATASOURCE_NAME + "JpaProperties") Properties jpaProperties,
        @Qualifier(DATASOURCE_NAME + "DataSource") DataSource dataSource,
        @Qualifier(DATASOURCE_NAME + "JpaVendorAdapter") JpaVendorAdapter jpaVendorAdapter) 
{
    LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
    factoryBean.setDataSource(dataSource);
    factoryBean.setJpaProperties(jpaProperties);
    factoryBean.setJpaVendorAdapter(jpaVendorAdapter);
    factoryBean.setPackagesToScan(MyEntity.class.getPackage().getName());
    factoryBean.setPersistenceUnitName(DATASOURCE_NAME + "PersistenceUnit");
    factoryBean.afterPropertiesSet();
    return factoryBean.getObject();
}

@Bean(name = DATASOURCE_NAME + "TransactionManager")
public PlatformTransactionManager transactionManager(@Qualifier(DATASOURCE_NAME + "EntityManagerFactory") EntityManagerFactory entityManagerFactory) 
{
    JpaTransactionManager txManager = new JpaTransactionManager();
    txManager.setEntityManagerFactory(entityManagerFactory);
    return txManager;
}

和应用程序配置

@SpringBootApplication(exclude = {
        LiquibaseAutoConfiguration.class,
        DataSourceAutoConfiguration.class,
        ValidationAutoConfiguration.class,
        HibernateJpaAutoConfiguration.class,
        JpaRepositoriesAutoConfiguration.class,
        DataSourceTransactionManagerAutoConfiguration.class
})