Метод выдал исключение «org.hibernate.LazyInitializationException» ⇐ JAVA

[Anonymous]

Я получаю LazyInitializationException при использовании методов createQuery(), load() или get(). Конфигурация основана на аннотациях.

Это исключение, которое я получаю:

Код: Выделить всё

Method threw 'org.hibernate.LazyInitializationException' exception.  Cannot evaluate lt.package.to.Setting_$$_jvstfff_0.toString()

Структура схемы:

Код: Выделить всё

CREATE TABLE IF NOT EXISTS `Settings` (
`key` varchar(255) COLLATE utf8_lithuanian_ci NOT NULL,
`value` varchar(255) COLLATE utf8_lithuanian_ci DEFAULT NULL,
PRIMARY KEY (`key`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci;

PersistenceConfig.java

Код: Выделить всё

@Configuration
@ComponentScan(basePackages= {"lt.setkus.sandbox.persistence"})
@EnableTransactionManagement
@PropertySource({"/WEB-INF/properties/configuration.properties"})
public class PersistenceConfig {

@Autowired
private Environment environment;

private Properties getHibernateProperties() {
Properties properties = new Properties();

properties.setProperty("hibernate.hbm2ddl.auto", environment.getProperty("hibernate.hbm2ddl.auto"));
properties.setProperty("hibernate.dialect", environment.getProperty("hibernate.dialect"));
properties.setProperty("hibernate.globally_quoted_identifiers", "true");

return properties;
}

@Bean
public LocalSessionFactoryBean provideSessionFactoryBean() {
LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean();

localSessionFactoryBean.setDataSource(getDataSource());
localSessionFactoryBean.setPackagesToScan("lt.setkus.sandbox.persistence.domain");
localSessionFactoryBean.setHibernateProperties(getHibernateProperties());

return localSessionFactoryBean;
}

@Bean
public DataSource getDataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();

dataSource.setDriverClassName(environment.getProperty("jdbc.driver"));
dataSource.setUrl(environment.getProperty("jdbc.url"));
dataSource.setUsername(environment.getProperty("jdbc.user"));
dataSource.setPassword(environment.getProperty("jdbc.password"));

return dataSource;
}

@Bean
@Autowired
public HibernateTransactionManager provideTransactionManager(SessionFactory sessionFactory) {
HibernateTransactionManager hibernateTransactioManager = new HibernateTransactionManager();
hibernateTransactioManager.setSessionFactory(sessionFactory);

return hibernateTransactioManager;
}

@Bean
public PersistenceExceptionTranslationPostProcessor provideExceptionTranslationPostProcessor() {
return new PersistenceExceptionTranslationPostProcessor();
}

@Bean
public PostItemRepository postItemRepository() {
return new FacebookPostRepository();
}

@Bean
public PostPersistenceService postPersistenceService(PostItemRepository postItemRepository) {
return new PostPersistenceEventHandler(postItemRepository);
}

@Bean
public SettingRepository provideSettingRepository() {
return new SettingDatabaseRepository();
}

@Bean
public SettingPersistenceService provideSettingPersistenceService(SettingRepository settingRepository) {
return new SettingPersistenceEventHandler(settingRepository);
}
}

Класс модели предметной области

Код: Выделить всё

@Entity
@Table(name = "settings")
public class Setting implements Serializable {
@Id
@Column(name = "key", unique = true)
private String key;

@Column(name = "value")
private String value;

public String getKey() {
return key;
}

public void setKey(String key) {
this.key = key;
}

public String getValue() {
return value;
}

public void setValue(String value) {
this.value = value;
}

public SettingDetails toSettingDetails() {
SettingDetails settingDetails = new SettingDetails();
BeanUtils.copyProperties(this, settingDetails);

return settingDetails;
}

public static Setting fromSettingDetails(SettingDetails settingDetails) {
Setting setting = new Setting();
BeanUtils.copyProperties(settingDetails,  setting);

return setting;
}
}

Уровень обслуживания

Код: Выделить всё

public class SettingDatabaseRepository implements SettingRepository {

@Autowired
private SessionFactory sessionFactory;

@Override
@Transactional
public Setting get(final String key) {
return (Setting)sessionFactory.getCurrentSession().get(Setting.class, key);
}
}

Я действительно не могу найти ошибку, вызывающую эти исключения. Что я делаю не так?

Подробнее здесь: https://stackoverflow.com/questions/255 ... -exception