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Форумы / Java [игнор отключен] [закрыт для гостей] / could not initialize proxy - no Session Spring data jpa + Hibernate / 5 сообщений из 5, страница 1 из 1
15.07.2018, 17:02
    #39674192
Tsyklop
Tsyklop
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could not initialize proxy - no Session Spring data jpa + Hibernate
Проблема возникает тут:

Код: java
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Category category = categoryService.getById(id);

if(category!=null) {
    title = "Панель управления - Категория "+category.getName();
    ...
}



Уже пробовал разные решение которые предлагали:

hibernate.enable_lazy_load_no_trans=true убирать FetchType.LAZY , ставить EAGER

Не помогает ничего. в чем беда? При чем получается в сущности все поля null , Хотя до этого я нигде запросов не делал.

AppConfig:

Код: java
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@Configuration
@EnableTransactionManagement
@ComponentScans(value = {@ComponentScan("com.site.service")})
@EnableJpaRepositories("com.site.dao")
@PropertySource("classpath:database.properties")
public class AppConfig {

    @Autowired
    private Environment env;

    @Bean(name = "entityManagerFactory")
    public LocalContainerEntityManagerFactoryBean getEntityManagerFactoryBean() {
        LocalContainerEntityManagerFactoryBean lcemfb = new LocalContainerEntityManagerFactoryBean();
        lcemfb.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        lcemfb.setDataSource(getDataSource());
        lcemfb.setPersistenceUnitName("persistenceUnit");
        lcemfb.setPackagesToScan("com.site.entity");
        lcemfb.setJpaProperties(hibernateProperties());
        return lcemfb;
    }

    @Bean
    public DataSource getDataSource() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName(env.getProperty("database.driverClassName"));
        dataSource.setUrl(env.getProperty("database.url"));
        dataSource.setUsername(env.getProperty("database.username"));
        dataSource.setPassword(env.getProperty("database.password"));
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        return new JpaTransactionManager(getEntityManagerFactoryBean().getObject());
    }

    private Properties hibernateProperties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
        properties.put("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
        properties.put("hibernate.format_sql", env.getProperty("hibernate.format_sql"));
        properties.put("hibernate.id.new_generator_mappings", env.getProperty("hibernate.id.new_generator_mappings"));
        properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
        properties.put("hibernate.connection.CharSet", env.getProperty("hibernate.connection.CharSet"));
        properties.put("hibernate.connection.characterEncoding", env.getProperty("hibernate.connection.characterEncoding"));
        properties.put("hibernate.connection.useUnicode", env.getProperty("hibernate.connection.useUnicode"));
        properties.put("hibernate.enable.lazy.load.on.trans", env.getProperty("hibernate.enable_lazy_load_on_trans"));
        return properties;
    }[SRC java]


}[/SRC]

Controller:

@Controller
@Secured("hasRole('ADMIN')")
@RequestMapping(value = "/panel")
public class PanelController {

@Autowired
private ConfigService configService;

@Autowired
private ImageService imageService;

@Autowired
private CategoryService categoryService;

@GetMapping(value = {"", "/", "/index"})
private ModelAndView index(ModelAndView view, HttpServletRequest request) {
view.addObject("title", "Панель управления");
view.setViewName("panel/index");
return view;
}

@GetMapping(value = "/pages")
private ModelAndView main(ModelAndView view) {
view.addObject("title", "Панель управления - Страницы");
view.setViewName("panel/pages");
return view;
}

@GetMapping(value = {"/categories", "/categories/{id}"})
private ModelAndView categories(ModelAndView view, @PathVariable(required = false) Integer id) {

String title = "Панель управления - Категории";

if(id!=null) {

Category category = categoryService.getById(id);

if(category!=null) {
title = "Панель управления - Категория "+category.getName();
view.getModelMap().addAttribute("images", imageService.getAllByCategoryId(category.getId()));
} else {
title= "Панель управления - Категория не найдена";
}
}

view.getModelMap().addAttribute("title", title);

view.getModelMap().addAttribute("scripts", new String[]{"panel/categories.js"});
view.getModelMap().addAttribute("categories", categoryService.getAll());
view.setViewName("panel/categories");

return view;

}

}

Category:

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@Entity
@Table(name="category")
public class Category {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", unique = true, updatable = false)
    private int id;

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

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

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

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

    @OneToMany(mappedBy="category", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
    private List<Image> images = new ArrayList<>();

    public Category() { }

    public Category(String name, String description, String preview) {
        this.name = name;
        this.description = description;
        this.preview = preview;
    }

    // getters, setters
}



CategoryService:

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@Service
public class CategoryService {

    @Autowired
    private ServletContext servletContext;

    @Autowired
    private CategoryRepository categoryRepository;

    private static final Logger LOGGER = LogManager.getLogger(CategoryService.class);

    public List<Category> getAll() {
        return categoryRepository.findAll();
    }

    public Category getById(int id) {
        return categoryRepository.getOne(id);
    }

}



CategoryRepository:

Код: java
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@Repository
@Transactional
public interface CategoryRepository extends JpaRepository<Category, Integer> {

}
...
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15.07.2018, 17:06
    #39674194
Tsyklop
Tsyklop
Гость
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
could not initialize proxy - no Session Spring data jpa + Hibernate
Вся ошибка:

Код: java
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org.hibernate.LazyInitializationException: could not initialize proxy [com.site.entity.Category#1] - no Session
        at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:159) [hibernate-core-5.3.2.Final.jar:5.3.2.Final]
        at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:272) [hibernate-core-5.3.2.Final.jar:5.3.2.Final]
        at org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor.intercept(ByteBuddyInterceptor.java:52) [hibernate-core-5.3.2.Final.jar:5.3.2.Final]
        at org.hibernate.proxy.ProxyConfiguration$InterceptorDispatcher.intercept(ProxyConfiguration.java:95) [hibernate-core-5.3.2.Final.jar:5.3.2.Final]
        at com.site.entity.Category$HibernateProxy$eWyxRGT3.getName(Unknown Source) [classes/:?]
        at com.site.controller.PanelController.categories(PanelController.java:60) [classes/:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_172]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_172]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_172]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_172]
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [servlet-api.jar:?]
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [servlet-api.jar:?]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [catalina.jar:9.0.6]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.6]
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-websocket.jar:9.0.6]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.6]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.6]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
        at org.springframework.

security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.6]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.6]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [catalina.jar:9.0.6]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:9.0.6]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494) [catalina.jar:9.0.6]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) [catalina.jar:9.0.6]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [catalina.jar:9.0.6]
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651) [catalina.jar:9.0.6]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [catalina.jar:9.0.6]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [catalina.jar:9.0.6]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:407) [tomcat-coyote.jar:9.0.6]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-coyote.jar:9.0.6]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754) [tomcat-coyote.jar:9.0.6]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376) [tomcat-coyote.jar:9.0.6]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:9.0.6]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_172]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_172]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:9.0.6]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
...
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15.07.2018, 18:02
    #39674212
Tsyklop
Tsyklop
Гость
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
could not initialize proxy - no Session Spring data jpa + Hibernate
Попробовал сделать `REST` запрос и все работает на отлично. Магия. Но в чем причина того бага?

Код: java
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@PostMapping(value = "/category/load", consumes = MediaType.ALL_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
        private Response categoryLoad(Response response, @RequestBody CategoryLoadForm categoryLoad) {
    
            Category category = categoryService.getById(categoryLoad.getCategoryId());
    
            if(category!=null) {
                LOGGER.info(category);
                response.setSuccess("OK");
                response.addData("images", imageService.getAllByCategoryId(category.getId()));
            } else {
                response.setError("Китегория не найдена");
            }
    
            return response;
        }
...
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17.07.2018, 08:06
    #39674798
Hett
Hett
Участник
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
could not initialize proxy - no Session Spring data jpa + Hibernate
Где-то во вьюхе обращаешься к category.images() ?
...
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17.07.2018, 10:12
    #39674846
Tsyklop
Tsyklop
Гость
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
could not initialize proxy - no Session Spring data jpa + Hibernate
HettГде-то во вьюхе обращаешься к category.images() ?
он до нее даже не доходит. Валится на получении категории
...
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