java.lang.IllegalArgumentException問題：不是托管類型

Question

我知道我在問其他用戶之前問過同樣的問題，但我想知道Stack Overflow中是否有任何頁面可以解決我的問題。

我有一個像這樣定義的Database Configuration類：

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {AppConfig.CLASS_REPOSITORIES})
public class DatabaseConfig {

    private static final Logger LOG = Log.getLog(AppConfig.class);

    @Autowired
    AppConfig config;

    //Bean methods
}

常量AppConfig.CLASS_REPOSITORIES在Application Configuration類中定義，定義如下：

@Configuration
@ComponentScan({AppConfig.CLASS_SERVICES,AppConfig.CLASS_WEB, AppConfig.CLASS_WEBCORE}) 
@Import({DatabaseConfig.class, WebConfig.class, DBIccidsConfig.class, DBOabiConfig.class})
public class AppConfig  {
    private static final Logger LOG = Log.getLog(AppConfig.class);
    /**************************************************/

    /**************************************************/
    public static final  String CONS_APP_CONFIG      =  Constants.NAME.toUpperCase();    
    public static final  String CLASS_SERVICES       = "cl.claro.berrws.business.services";
    public static final  String CLASS_WEB            = "cl.claro.berrws.soap.controllers";
    public static final  String CLASS_WEBCORE        = "cl.claro.berrws.soap.core";
    public static final  String CLASS_REPOSITORIES   = "cl.claro.berrws.persistence.repositories";
    public static final  String CLASS_ENTITIES       = "cl.claro.berrws.persistence.entities";
    public static final  String CLASS_ICCIDS_REPOSITORIES   = "cl.claro.berrws.persistence.iccids.repositories";
    public static final  String CLASS_ICCIDS_ENTITIES       = "cl.claro.berrws.persistence.iccids.entities";   
    public static final  String CLASS_OABI_REPOSITORIES   = "cl.claro.berrws.persistence.imeioabi.repositories";
    public static final  String CLASS_OABI_ENTITIES       = "cl.claro.berrws.persistence.imeioabi.entities";   

//Bean methods that are not relevant for this problem

常量CLASS_REPOSITORIES指向包含兩個存儲庫接口的包cl.claro.berrws.persistence.iccids.repositories 。 其中一個是EstadoRepository ，定義如下：

package cl.claro.berrws.persistence.repositories;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

import cl.claro.berrws.persistence.entities.Estado;

@Repository
public interface EstadoRepository extends JpaRepository<Estado, String>{
    @Query("SELECT e FROM Estado e WHERE e.imei=:imei")
    public Estado obtieneEstado(@Param("imei") String imei);
}

類Estado存在於包cl.claro.berrws.persistence.entities由恆定引用CLASS_ENTITIES在AppConfig類。 Estado類定義如下：

@Data
@Entity
@Table(name = "TBL_ESTADOS")
@XmlRootElement
public class Estado implements Serializable {
    //Some attributes
    @Id
    @Column(name = "IMEI", length=20)
    @Basic(optional = false)
    private String imei;

    //More attributes
}

屬性的順序在數據庫中建立（Oracle數據庫）

DatabaseConfig類定義使用實體類的Bean方法，如下所示：

@Bean
    LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource, Environment env) {
        if (LOG.isInfoEnabled()) LOG.info("Configurando ENTITY MANAGER");
        LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactoryBean.setDataSource(dataSource);
        entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        entityManagerFactoryBean.setPackagesToScan(AppConfig.CLASS_ENTITIES);
        Properties jpaProperties = new Properties();
        jpaProperties.put("hibernate.dialect",Config.getConfig("hibernate.dialect"));        
        jpaProperties.put("hibernate.show_sql",Config.getConfig("hibernate.showSql"));
        jpaProperties.put("hibernate.format_sql",Config.getConfig("hibernate.format_sql")); 
        jpaProperties.put("hibernate.hbm2ddl.auto",Config.getConfig("hibernate.hbm2ddl")); 
        jpaProperties.put("hibernate.enable_lazy_load_no_trans",true); 
        entityManagerFactoryBean.setJpaProperties(jpaProperties);        
        return entityManagerFactoryBean;
    }    

但是，當我執行我的應用程序時，我得到以下異常： java.lang.IllegalArgumentException: Not a managed type: class cl.claro.berrws.persistence.entities.Estado

我錯過了什么嗎？ 伙計們，提前謝謝。

PD：該應用程序也使用Maven。 我不知道它是否相關。

Answer 1

也許問題出現是因為你的類cl.claro.berrws.persistence.entities.Estado的bean沒有被創建。 在DatabaseConfig .class中，您只指定要掃描的包AppConfig.CLASS_REPOSITORIES ，請嘗試添加以下內容：

@ComponentScan("cl.claro.berrws.persistence.entities")

這樣實體類也會在春天被選中。 所以你的配置應該是這樣的：

@Configuration
@EnableTransactionManagement
@ComponentScan("cl.claro.berrws.persistence.entities")
@EnableJpaRepositories(basePackages = {AppConfig.CLASS_REPOSITORIES})
public class DatabaseConfig {

    private static final Logger LOG = Log.getLog(AppConfig.class);

    @Autowired
    AppConfig config;

    //Bean methods
}

或者您可以嘗試使用@EntityScan注釋指定實體類包，如：

@EntityScan( basePackages = {"domain"} )