我使用Spring boot+JPA,在启动服务时遇到了一个问题。

Caused by: java.lang.IllegalArgumentException: Not an managed type: class com.nervytech.dialer.domain.PhoneSettings
    at org.hibernate.jpa.internal.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:219)
    at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:68)
    at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getMetadata(JpaEntityInformationSupport.java:65)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:145)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:89)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:69)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:177)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:239)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:225)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)

这是Application.java文件,

@Configuration
@ComponentScan
@EnableAutoConfiguration(exclude = { DataSourceAutoConfiguration.class })
@SpringBootApplication
public class DialerApplication {

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

我使用UCp进行连接池,数据源配置如下:

@Configuration
@ComponentScan
@EnableTransactionManagement
@EnableAutoConfiguration
@EnableJpaRepositories(entityManagerFactoryRef = "dialerEntityManagerFactory", transactionManagerRef = "dialerTransactionManager", basePackages = { "com.nervy.dialer.spring.jpa.repository" })
public class ApplicationDataSource {

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory
            .getLogger(ApplicationDataSource.class);

    /** The Constant TEST_SQL. */
    private static final String TEST_SQL = "select 1 from dual";

    /** The pooled data source. */
    private PoolDataSource pooledDataSource;

UserDetailsService实现,

@Service("userDetailsService")
@SessionAttributes("user")
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private UserService userService;

服务层实现,

@Service
public class PhoneSettingsServiceImpl implements PhoneSettingsService {

}

存储库类,

@Repository
public interface PhoneSettingsRepository extends JpaRepository<PhoneSettings, Long> {

}

实体类,

@Entity
@Table(name = "phone_settings", catalog = "dialer")
public class PhoneSettings implements java.io.Serializable {

WebSecurityConfig类,

@Configuration
@EnableWebMvcSecurity
@ComponentScan
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsServiceImpl userDetailsService;

    /**
     * Instantiates a new web security config.
     */
    public WebSecurityConfig() {

        super();
    }

    /**
     * {@inheritDoc}
     * @see org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter#configure(org.springframework.security.config.annotation.web.builders.HttpSecurity)
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.authorizeRequests()
            .antMatchers("/login", "/logoffUser", "/sessionExpired", "/error", "/unauth", "/redirect", "*support*").permitAll()
            .anyRequest().authenticated().and().rememberMe().and().httpBasic()
            .and()
            .csrf()
            .disable().logout().deleteCookies("JSESSIONID").logoutSuccessUrl("/logoff").invalidateHttpSession(true);
    }


    @Autowired
    public void configAuthentication(AuthenticationManagerBuilder auth) throws Exception {

      auth.userDetailsService(userDetailsService).passwordEncoder(new BCryptPasswordEncoder());
    }

}

包装如下:

应用程序类在- com. nerve .dialer中 数据源类在- com. nerver .dialer.common中 实体类在- com. nerver .dialer.domain 服务类在- com.nervy.dialer.domain.service.impl 控制器在- com.nervy.dialer.spring.controller 存储库类在- com.nervy.dialer.spring.jpa.repository中 WebSecurityConfig在- com.nervy.dialer.spring.security

谢谢


当前回答

如果你配置了你自己的EntityManagerFactory Bean,或者如果你从另一个项目复制粘贴了这样一个持久性配置,你必须在EntityManagerFactory的配置中设置或调整包:

@Bean
public EntityManagerFactory entityManagerFactory() throws PropertyVetoException {
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    vendorAdapter.setGenerateDdl(true);
    LocalContainerEntityManagerFactoryBean factory;
    factory = new LocalContainerEntityManagerFactoryBean();
    factory.setPackagesToScan("!!!!!!package.path.to.entities!!!!!");
    //...
}

注意“多重”需求,你需要一个String数组作为传递给setPackagesToScan的参数(而不是一个逗号分隔的单字符串值)。下面说明了这个问题。

    String[] packagesArray = "com.mypackage1,com.mypackage2".split(",");
    em.setPackagesToScan(packagesArray);

其他回答

不要像我一样犯明显的错误,让模板类型的顺序不正确。确保你在模板声明中没有把id放在前面,比如:

public interface CapacityBasedProductRepository extends JpaRepository<Long, CapacityBasedProduct> {
}

JPA类是第一个,id列类型是第二个,如下所示:

public interface CapacityBasedProductRepository extends JpaRepository<CapacityBasedProduct, Long> {
}

否则,它会抱怨java.lang.Long是一个未知的实体类型。它使用第一项查找要使用的实体。

在我的案例中,将package添加到@EntityScan并没有帮助,因为有一个工厂bean指定了包,所以必须在那里添加一个额外的条目。然后它开始工作了。

我得到这个错误是因为我愚蠢地写了

公共接口FooBarRepository扩展CrudRepository<FooBarRepository, Long>{…

A brief explanation: One typically creates a FooBarRepository class to manage FooBar objects (often representing data in a table called something like foo_bar.) When extending the CrudRepository to create the specialized repository class, one needs to specify the type that's being managed -- in this case, FooBar. What I mistakenly typed, though, was FooBarRepository rather than FooBar. FooBarRepository is not the type (the class) I'm trying to manage with the FooBarRepository. Therefore, the compiler issues this error.

我用粗体突出显示了输入错误的地方。在我的示例中删除突出显示的单词Repository,代码将被编译。

你要么错过了类定义上的@Entity,要么你有显式的组件扫描路径,而这个路径不包含你的类

我已经复制了类似的问题w/不是管理类型。

更具体地说:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'stockPriceRepository' defined in com.example.stockclient.repository.StockPriceRepository defined in @EnableJpaRepositories declared on StockUiApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.example.stockclient.StockPrice

由于我有多模块项目,我需要为Spring Data JPA启用自动配置支持,以了解JPA存储库的路径,因为默认情况下,它将只扫描主应用程序包及其子包来检测JPA存储库。

因此,在我的特定用例中,我已经使用@ enablejparepository来启用包含在必要包中的JPA存储库,但没有@EntityScan。

使用@EntityScan与使用@ enablejparepository情况相同,因为由于多模块项目,实体类没有放在主应用程序包中。

要了解更多细节,您可以参考这篇文章。