Spring + Hibernate: Ошибка создания боб

Я занимаюсь разработкой веб-приложений Spring MVC + Hibernate и я застрял с этим исключением:Spring + Hibernate: Ошибка создания боб

Dec 07, 2015 11:52:51 AM org.springframework.web.context.ContextLoader 

initWebApplicationContext 
SEVERE: Context initialization failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mainRestController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.LoginService it.grimi.babel.controller.MainRestController.loginService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.dao.LoginDao it.grimi.babel.service.LoginServiceImpl.loginDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginDao' defined in file [C:\NSI\_progetti\EclipseWorkspace\BabelIface\target\BabelIface\WEB-INF\classes\it\grimi\babel\service\dao\LoginDaoImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5014) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) 
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) 
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) 
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:677) 
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:552) 
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1717) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301) 
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) 
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) 
    at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1516) 
    at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:912) 
    at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:371) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2476) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2465) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.LoginService it.grimi.babel.controller.MainRestController.loginService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.dao.LoginDao it.grimi.babel.service.LoginServiceImpl.loginDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginDao' defined in file [C:\NSI\_progetti\EclipseWorkspace\BabelIface\target\BabelIface\WEB-INF\classes\it\grimi\babel\service\dao\LoginDaoImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:571) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) 
    ... 58 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.dao.LoginDao it.grimi.babel.service.LoginServiceImpl.loginDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginDao' defined in file [C:\NSI\_progetti\EclipseWorkspace\BabelIface\target\BabelIface\WEB-INF\classes\it\grimi\babel\service\dao\LoginDaoImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1145) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1069) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:967) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:543) 
    ... 60 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.grimi.babel.service.dao.LoginDao it.grimi.babel.service.LoginServiceImpl.loginDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginDao' defined in file [C:\NSI\_progetti\EclipseWorkspace\BabelIface\target\BabelIface\WEB-INF\classes\it\grimi\babel\service\dao\LoginDaoImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:571) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) 
    ... 71 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginDao' defined in file [C:\NSI\_progetti\EclipseWorkspace\BabelIface\target\BabelIface\WEB-INF\classes\it\grimi\babel\service\dao\LoginDaoImpl.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1145) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1069) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:967) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:543) 
    ... 73 more 
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [it.grimi.babel.service.dao.LoginDaoImpl]: Constructor threw exception; nested exception is java.lang.ExceptionInInitializerError 
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:163) 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1098) 
    ... 84 more 
Caused by: java.lang.ExceptionInInitializerError 
    at it.grimi.babel.hibernate.utils.SingleSessionFactory.getInstance(SingleSessionFactory.java:42) 
    at it.grimi.babel.service.dao.LoginDaoImpl.<init>(LoginDaoImpl.java:20) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147) 
    ... 86 more 
Caused by: org.hibernate.MappingNotFoundException: resource: it/grimi/babel/model/Login.hbm.xml not found 
    at org.hibernate.cfg.Configuration.addResource(Configuration.java:746) 
    at org.hibernate.cfg.Configuration.addClass(Configuration.java:791) 
    at it.grimi.babel.hibernate.utils.SingleSessionFactory$SingleSessionHelper.getSingleSession(SingleSessionFactory.java:25) 
    at it.grimi.babel.hibernate.utils.SingleSessionFactory$SingleSessionHelper.<clinit>(SingleSessionFactory.java:13) 
    ... 93 more 

Dec 07, 2015 11:52:51 AM org.apache.catalina.core.StandardContext startInternal 
SEVERE: One or more listeners failed to start. Full details will be found in the appropriate container log file 
Dec 07, 2015 11:52:51 AM org.apache.catalina.core.StandardContext startInternal 
SEVERE: Context [/BabelIface] startup failed due to previous errors 
Dec 07, 2015 11:52:51 AM org.apache.catalina.startup.HostConfig deployDescriptor 
INFO: Deployment of configuration descriptor C:\NSI\_software\apache-tomcat-7.0.62\conf\Catalina\localhost\BabelIface.xml has finished in 1,790 ms

Мои извинения многословия ... но само исключение больше и этот отрывок должен (я предполагаю) быть самой важной его частью.

Я знаю, что что-то не так с декларацией LoginDao в LoginDaoImpl (не так ли?), Но я не могу понять, что (На самом деле мне также очень трудно понять это из-за моих ранних навыков с весной, Мне нужна помощь)

Я следовал примеру this, пытаясь что-то изменить из-за моих требований к проекту. Очевидно, что это действительно хорошо выполненный пример, действительно мое приложение в основном имеет ту же структуру, но у него также есть класс SingleSessionFactory (показано ниже), обертывающий все конфигурации, чтобы заставить Hibernate разговаривать с базой данных (потому что xml заставляет меня болеть).

справа, так что ... здесь известный класс:

public class SingleSessionFactory { 

    private SingleSessionFactory() { 
    } 

    private static class SingleSessionHelper { 

     private static final SessionFactory SESSION_FACTORY = getSingleSession(); 

     private static SessionFactory getSingleSession() { 

      if (SESSION_FACTORY == null) { 
       Configuration hConf = new Configuration(); 

       hConf.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect"); 
       hConf.setProperty("hibernate.connection.datasource", "jdbc:postgresql://127.0.0.1:5432/postgres"); 
       hConf.setProperty("hibernate.connection.username", "postgres"); 
       hConf.setProperty("hibernate.connection.password", "ziocamper"); 

       hConf.addClass(it.grimi.babel.model.Login.class); 
       hConf.addClass(it.grimi.babel.model.User.class); 

       try { 
        return hConf.buildSessionFactory(); 
       } catch (Throwable ex) { 
        System.out.println(ex.getMessage()); 
        throw new ExceptionInInitializerError(ex); 
       } 
      } 
      return SESSION_FACTORY; 
     } 
    } 

    public static SessionFactory getInstance() { 
     return SingleSessionHelper.SESSION_FACTORY; 
    } 

}

... и я хочу, чтобы получить возможность отправлять либо LoginDaoImpl, LoginServiceImpl классов и MainRestController класса как точка входа моего REST API.

LoginDaoImpl

@Repository("loginDao") 
public class LoginDaoImpl implements LoginDao { 

    private SessionFactory sessionFactory = SingleSessionFactory.getInstance(); 

    public User doLogin(User user) { 
     return (User) this.sessionFactory.getCurrentSession().createQuery("from users where username = :username and password =: password ") 
       .setParameter("username", user.getUsername()) 
       .setParameter("password", user.getPassword()).list().get(0); 
    } 

}

LoginServiceImpl

@Service("loginService") 
public class LoginServiceImpl implements LoginService { 

    @Autowired 
    LoginDao loginDao; 

    public User doLogin(User user) { 
     return loginDao.doLogin(user); 
    } 

}

MainRestController

@RestController 
public class MainRestController { 

    @Autowired 
    LoginService loginService; 

    @RequestMapping(
      value = "/login", 
      method = RequestMethod.POST, 
      produces = MediaType.APPLICATION_JSON_VALUE 
    ) 
    public ResponseEntity<User> doLogin(@RequestBody User user) { 
     User usr = this.loginService.doLogin(user); 
     if (usr != null) { 
      return new ResponseEntity<User>(usr, HttpStatus.OK); 
     } else { 
      return new ResponseEntity<User>(HttpStatus.BAD_REQUEST); 
     } 
    } 
}

Я знаю, есть глупая ошибка veeeeery, но я не мог ее найти, и мне нужны ваши сравнения.

Что случилось?

источник

2015-12-07 grimi

Вы должны использовать

hConf.addAnnotatedClass(Login.class).addAnnotatedClass(User.class);

вместо метода addClass.

От Hibernate Doc addAnnotatedClass

Исходный код из Configuration класса -

/** 
    * Read a mapping as an application resource using the convention that a class 
    * named <tt>foo.bar.Foo</tt> is mapped by a file <tt>foo/bar/Foo.hbm.xml</tt> 
    * which can be resolved as a classpath resource. 
    * 
    * @param persistentClass The mapped class 
    * @return this (for method chaining purposes) 
    * @throws MappingException Indicates problems locating the resource or 
    * processing the contained mapping document. 
    */ 
    public Configuration addClass(Class persistentClass) throws MappingException { 
     String mappingResourceName = persistentClass.getName().replace('.', '/') + ".hbm.xml"; 
     LOG.readingMappingsFromResource(mappingResourceName); 
     return addResource(mappingResourceName, persistentClass.getClassLoader()); 
    } 

    /** 
    * Read metadata from the annotations associated with this class. 
    * 
    * @param annotatedClass The class containing annotations 
    * 
    * @return this (for method chaining) 
    */ 
    @SuppressWarnings({ "unchecked" }) 
    public Configuration addAnnotatedClass(Class annotatedClass) { 
     XClass xClass = reflectionManager.toXClass(annotatedClass); 
     metadataSourceQueue.add(xClass); 
     return this; 
    }

Из приведенного выше кода, то очевидно, что метод addClass ищет файл отображения и addAnnotatedClass будет использовать Reflections для чтения метаданные с использованием класса annotations.

источник

2015-12-07 12:30:25

Удивительно, вы правы! Это потому, что я использую аннотированные бобы. Я знал, что было бы так легко. Благодаря! – grimi

Первопричина за исключением является:

MappingNotFoundException: ресурс: он/Грими/Babel/модель/Login.hbm.xml не найден

Пожалуйста, убедитесь, что это XML-файл существует.

Вы добавили класс входа в систему с «confiuration.addClass» документация спящего режима говорит «Hibernate будет искать отображения файлов с именами .../.... hbm.xml в пути к классам.»

Вместо это создать