Spring-boot JPA 多个数据源不更新或创建表

Question

我在使用带有 spring-boot 的 JPA 时遇到问题multiple data-sources。这是我一直设法做到的事情。但这次我不明白为什么不起作用？

在 gradle build 或 bootRun 之后，不会创建或更新任何表。启动时没有编译或运行时错误。我快失去理智了。

您可以找到我所附的代码。

P2BDatabaseConfig.groovy

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "p2bEntityManagerFactory",
        transactionManagerRef = "p2bTransactionManager",
        basePackages = {"it.project.sol.sharpapi.repo.p2b"}
)
public class P2BDatabaseConfig {

    @Bean(name = "p2bDataSource")
    @ConfigurationProperties(prefix = "spring.p2b")
    @Primary
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @PersistenceContext(unitName = "p2bPU")
    @Bean(name = "p2bEntityManagerFactory")
    @Primary
    public LocalContainerEntityManagerFactoryBean p2bEntityManagerFactory(EntityManagerFactoryBuilder builder,
                                                                          @Qualifier("p2bDataSource") DataSource dataSource) {
        return builder.dataSource(dataSource).packages("it.project.sol.sharpapi.entity.p2b").build();
    }

    @Bean(name = "p2bTransactionManager")
    @Primary
    public PlatformTransactionManager p2bTransactionManager(
            @Qualifier("p2bEntityManagerFactory") EntityManagerFactory p2bEntityManagerFactory) {
        return new JpaTransactionManager(p2bEntityManagerFactory);
    }
}

SharpDatabaseConfig.groovy

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "sharpEntityManagerFactory",
        transactionManagerRef = "sharpTransactionManager",
        basePackages = {"it.project.sol.sharpapi.repo.sharp"}
)
public class SharpDatabaseConfig {

    @Bean(name = "sharpDataSource")
    @ConfigurationProperties(prefix = "spring.sharp")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @PersistenceContext(unitName = "sharpPU")
    @Bean(name = "sharpEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean sharpEntityManagerFactory(EntityManagerFactoryBuilder builder,
                                                                          @Qualifier("sharpDataSource") DataSource dataSource) {
        return builder.dataSource(dataSource).packages("it.project.sol.sharpapi.entity.sharp").build();
    }

    @Bean(name = "sharpTransactionManager")
    public PlatformTransactionManager sharpTransactionManager(
            @Qualifier("sharpEntityManagerFactory") EntityManagerFactory sharpEntityManagerFactory) {
        return new JpaTransactionManager(sharpEntityManagerFactory);
    }
}

应用程序.yml

spring:
  profiles:
    active: Developement

  jpa:
    show-sql: true
    database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
    hibernate:
      ddl-auto: update
      naming-strategy: org.hibernate.cfg.ImprovedNamingStrategy
      dialect: org.hibernate.dialect.MySQL5Dialect

  p2b:
    url: jdbc:mysql://localhost:3306/p2bv2?autoReconnect=true
    username: xxxx
    password: xxxx!
    testWhileIdle: true
    maxActive: 5
    validationQuery: SELECT 1
    driver-class-name: com.mysql.jdbc.Driver

  sharp:
    url: jdbc:mysql://localhost:3306/sharp?autoReconnect=true
    username: xxxx
    password: xxxx!
    testWhileIdle: true
    maxActive: 5
    validationQuery: SELECT 1
    driver-class-name: com.mysql.jdbc.Driver

P2BDevice.groovy

@Entity(name = "P2BDevice")
@Table(name = "device")
class P2BDevice implements Serializable{

    @Id
    @GeneratedValue
    Long id

    @Column(name = "version")
    Long version

    @Column(name = "date_created")
    Date dateCreated

    @Column(name = "deleted")
    int deleted

    @Column(name = "description")
    String description

    ...

}

用户.groovy

@Entity(name = "User")
@Table(name = "caccapupu")
class User implements Serializable{

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    Long id

    @Column(name = "version")
    Long version

    @Column(name = "username")
    String username

    @Column(name = "password")
    Long password

    @Column(name = "date_created")
    Date dateCreated

    @Column(name = "status")
    int status

    ...

}

我可以向您保证，存储库是正确的，甚至我的课程的包位置也是正确的。

Answer 1

尝试显式设置 JPA 属性

    LocalContainerEntityManagerFactoryBean em = 
builder.dataSource(dataSource).packages("it.project.sol.sharpapi.entity.sharp").build();
            HashMap<String, Object> properties = new HashMap<>();
            properties.put("hibernate.hbm2ddl.auto", "update");
            properties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
            em.setJpaPropertyMap(properties);