那些遇到过的问题

java.lang.IllegalArgumentException:不是托管类型

lap*_*ots 19 java spring-data-jpa spring-boot

我正在使用Spring boot和jpa.它就在这里

我有一个看起来像这样的域名.此外,它似乎Entity已被弃用,因此我正在使用DynamicUpdate.

@Data
@AllArgsConstructor
@NoArgsConstructor
@DynamicUpdate
public class Person {
    private String id;
    private String name;
}
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我的SpringBootApplication班级看起来像这样

@SpringBootApplication
@ComponentScan("com.lapots.breed.platform.cloud.boot")
@EnableJpaRepositories("com.lapots.breed.platform.cloud.boot.repository")
@EntityScan("com.lapots.breed.platform.cloud.boot.domain")
public class JavaCloudSampleApplication {

    public static void main(String[] args) {
        SpringApplication.run(JavaCloudSampleApplication.class, args);
    }

    // executed after all beans instantiated
    @Bean
    public CommandLineRunner data(PersonRepository repository) {
        return (args) -> {
            repository.save(new Person(UUID.randomUUID().toString(), "Nike"));
        };
    }
}
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repository 类看起来像这样

@Repository
public interface PersonRepository extends JpaRepository<Person, String> {
}
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service 使用这个类看起来像这样

@Service
@Transactional
public class PersonService implements IPersonService {

    @Autowired
    private PersonRepository personRepository;

    @Override
    public Person findPerson(String id) {
        return personRepository.findOne(id);
    }

    @Override
    public Person generatePerson() {
        Person person = new Person();
        person.setId(UUID.randomUUID().toString());
        person.setName("Nike");
        return person;
    }
}
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但是当我开始应用程序时,我得到了错误

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personService': Unsatisfied dependency expressed through field 'personRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error
 creating bean with name 'personRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.lapots.breed.platform.cloud.boot.domain.Person
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar!/:1.5.6.RELEASE]
        at com.lapots.breed.platform.cloud.boot.app.JavaCloudSampleApplication.main(JavaCloudSampleApplication.java:23) [classes!/:0.0.1-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_121]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_121]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_121]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.lapots.breed.platform.cl
oud.boot.domain.Person
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        ... 27 common frames omitted
Caused by: java.lang.IllegalArgumentException: Not a managed type: class com.lapots.breed.platform.cloud.boot.domain.Person
        at org.hibernate.jpa.internal.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:210) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final]
        at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:70) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:68) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:153) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:100) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:82) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:199) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na]
        at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na]
        at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na]
        at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:101) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.10.RELEASE.jar!/:4.3.10.RELEASE]
        ... 37 common frames omitted
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问题是什么？

Ind*_*sak 28

因为您使用的是JPA,所以可能Person需要Entity注释.

@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
@DynamicUpdate
public class Person {
    private String id;
    private String name;
}
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  • 您还需要在id字段上添加@Id批注 (4认同)

Fab*_*aru 21

对于那些正在使用Spring Data 3并拼命搜索的人，经过大量研究和尝试，我意识到大多数较旧的建议对于以前版本的 Spring Data 有效，但不适用于 version 3.0.0。所以我所有的尝试都失败了。我尝试过了：

\n
    \n
  • 在包名称中添加一些带或不带星号的注释（@EnableJpaRepositories、@ComponentScan、 ）。我在程序启动时@EntityScan仍然遇到致命错误。Not a managed type: class [\xe2\x80\xa6]
    • \n
  • 添加一个entityManagerFactory()豆子。我遇到循环引用错误。
    • \n
\n

最后，我找到了这个官方指南，其中给出了这个示例项目作为示例。这个使用Jakarta 的注释（例如：\xc2\xa0 jakarta.persistence.Entity）而不是javax.persistence. 通过 Jakarta 注释，我的项目开始工作。

\n

小智 7

您需要添加@Entity如下所示的模型/POJO 类，

@Entity
public class Person {
  //your model goes here
}
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fro*_*dot 7

在 Spring Boot 中，存储库包的基本名称必须与实体包的基本名称匹配。

示例：
给定基本名称：

com.abc.mcm
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实体包名：

com.abc.mcm.entities
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回购包名称：

com.abc.mcm.repositories
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小智 6

写给将来会搜索的人：

在您的实体管理器方法中LocalContainerEntityManagerFactoryBean，将具有 DTO/POJO 类的包设置为setPackagesToScan

例子：

@Bean
@Primary
public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws Exception {
    LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(dataSource());
    em.setPackagesToScan(new String[] {"com.abc.mainRepository.model"});
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    HashMap<String, Object> properties = new HashMap<>();
    properties.put("hibernate.dialect", dialect);
    em.setJpaPropertyMap(properties);
    return em;
}
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为我工作！

（我的 POJO 在模型包内）。

  • 好提示。当“@EntityScan”和“@EnableJpaRepositories”都包含软件包列表并且在开发过程中只有其中一个更新时，我遇到了同样的问题。这样，新存储库可见，但实体不被识别为一个。 (2认同)

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