為什么我的代碼會拋出“bean未托管例外”？

在我開始在我的資料源配置類中添加更多存盤庫和物體包之前，我的代碼一直可以正常使用單個存盤庫包。代碼失敗，例外：... Error creating bean with name 'waecChemistryObjRepo' defined in com.example.resource.akademiks.waec.obj.dao.WaecChemistryObjRepo defined in @EnableJpaRepositories declared on AkademiksDbConfig: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.example.resource.akademiks.waec.obj.entity.WaecChemistryObj

主資料源配置類：

@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {"com.example.resource.akademiks.waec.obj.dao",
        "com.example.resource.akademiks.waec.theory.dao", "com.example.resource.akademiks.waec.theory.answer.dao"},
 entityManagerFactoryRef = "akademiksEntityManagerFactory",
 transactionManagerRef = "akademiksTransactionManager")
public class AkademiksDbConfig {
    
    @Bean
    @Primary
    @ConfigurationProperties("spring.datasource.waecakademiks")
    public DataSourceProperties akademiksDataSourceProperties() {
        
        return new DataSourceProperties();
    }
    
    @Primary
    @Bean
    @ConfigurationProperties("spring.datasource.waecakademiks")
    public DataSource akademiksDataSource() {
        
        return akademiksDataSourceProperties().initializeDataSourceBuilder()
                .type(HikariDataSource.class).build();
        
    }
    
    
    @Primary
    @Bean(name = "akademiksEntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean 
    akademiksEntityManagerFactory(EntityManagerFactoryBuilder builder) {
        
        return builder
                .dataSource(akademiksDataSource())
                .packages("com.example.resource.akademiks.waec.obj.entity")
                .packages("com.example.resource.akademiks.waec.theory.questions.entity")
                .packages("com.example.resource.akademiks.waec.theory.answer.entity")
                .build();
                
    }
    
    @Primary
    @Bean
    public PlatformTransactionManager akademiksTransactionManager(
            @Qualifier("akademiksEntityManagerFactory")
            LocalContainerEntityManagerFactoryBean akademiksEntityManagerFactory
            ) {
        return new JpaTransactionManager(akademiksEntityManagerFactory.getObject());
    }
    
}

存盤庫：

package com.example.resource.akademiks.waec.obj.dao;

@Repository
@RepositoryRestResource(collectionResourceRel = "chemistry", path = "chemistry")
public interface WaecChemistryObjRepo extends JpaRepository<WaecChemistryObj, Integer> {

服務層：

 package com.example.resource.akademiks.waec.theory.chemistry.service;

public interface WaecChemistryTheoryService {}

服務實施：

 @Service
   public class WaecChemistryObjServiceImpl implements WaecChemistryObjService {
  @Autowired
 private WaecChemistryObjOptionRepo chemistryOptionRepo;

物體類：

package com.example.resource.akademiks.waec.obj.entity;

@Entity
@Table(name = "WaecChemistryObjAnswer")
public class WaecChemistryObjAnswer {

其他物體和存盤庫已被排除在外。

uj5u.com熱心網友回復：

該packages方法采用 varargs 引數：

EntityManagerFactoryBuilder.Builder packages(String... packagesToScan)

您呼叫它 3 次，而不是在一次呼叫中傳遞 3 個包。

更一般地說：如評論中所建議的那樣，利用自動配置并遵循配置方法的約定。

標籤：爪哇 弹簧靴 jpa 弹簧数据-jpa 弹簧数据

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