Spring Boot 应用程序中的“IllegalArgumentException：不是托管类型”

Posted 2023-02-26

【中文标题】Spring Boot 应用程序中的“IllegalArgumentException：不是托管类型”

【英文标题】："IllegalArgumentException: Not a managed type" in Spring Boot application

【发布时间】：2018-02-25 00:45:38

【问题描述】：

我正在使用 Spring Boot 和 JPA。是here

我有一个看起来像这样的域。此外，Entity 注释似乎已被弃用，所以我改用@DynamicUpdate。

@Data
@AllArgsConstructor
@NoArgsConstructor
@DynamicUpdate
public class Person 
    private String id;
    private String name;

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"));
        ;
    

@Repository 类看起来像这样

@Repository
public interface PersonRepository extends JpaRepository<Person, String> 

使用这个类的@Service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;
    

但是当我启动应用程序时，我得到了这个错误：

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

有什么问题？

【问题讨论】：

您在哪里找到@Entity 已弃用的声明？因为“不是托管类型”基本上意味着缺少@Entity。

entity 注释 hibernate - 不是 javax.persistence 已弃用

但Hibernates @Entity 只是JPA 的扩展。因此，如果您将 JPA 添加到 Person 应该没问题。

nested exception is java.lang.IllegalArgumentException: Not a managed type: class的可能重复

【参考方案1】：

也许Person 需要Entity 注释，因为您使用的是JPA。

@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
@DynamicUpdate
public class Person 
    private String id;
    private String name;

【讨论】：

确实，Entity 不见了。由于某些原因，我排除了javax.persistence，所以我没有javax.persistence.Entity 可用

你还需要在你的id字段上添加@Id注解

【参考方案2】：

您需要在您的模型/POJO 类中添加@Entity，如下所示，

@Entity
public class Person 
  //your model goes here

【参考方案3】：

在 Spring Boot 中，您的 repo 包的基本名称必须与您的实体包的基本名称匹配。

【讨论】：

用一个简单的例子回答会更好

【参考方案4】：

虽然这个问题已经超过 3 年了，但我想告诉我对我有用的解决方案。

将所有类/接口/存储库/模型等放在同一个包中。这会起作用。

【参考方案5】：

我在我的 Spring Boot 项目中遇到了同样的错误。 我添加了一个新包，但我没有编辑 componentScan。

就这样，我得到了错误：

com.okan.entity

我只是在添加时进行了更改：

com.okan.model.entity

【参考方案6】：

import javax.persistence.Entity;

@Entity 加入到类中就可以了

【参考方案7】：

为将来会搜索的人撰写文章：

在LocalContainerEntityManagerFactoryBean 的实体管理器方法中，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;

为我工作！

（我的 POJO 在模型包中）。

【讨论】：

嗨卡尼卡！我编辑了您的答案并添加了一些降价格式。您可以通过单击“已编辑”链接查看差异。如果您要在此网站上活跃，最好了解它！

感谢 Lii，我很欣赏所做的修改，以使其对观众更具可读性。

好提示。当@EntityScan 和@EnableJpaRepositories 都包含一个包列表并且其中只有一个在开发过程中得到更新时，我遇到了同样的问题。这样，新的存储库可见，但实体不被识别为一个。

【参考方案8】：

您的实体是否已映射到您的 persistence.xml 中？因为我遇到了同样的错误，然后我意识到我没有在那里映射实体