Spring JPA: транзакция не выполняется

Question

У меня проблемы с сохраняющимися объектами в приложении Spring. Просто делать em.merge() заканчивается без ошибок, но не обновляет базу данных, и пытается em.flush() вызывает это исключение:

2015-12-19 18:01:40 DEBUG DispatcherServlet: 976 - Не удалось выполнить запрос org.springframework. dao.InvalidDataAccessApiUsageException: no транзакция выполняется; вложенное исключение javax.persistence.TransactionRequiredException: сделка не в прогресса

Это моя конфигурация:

@Configuration 
@EnableWebMvc 
@ComponentScan 
@Import({ SecurityConfig.class }) 
@PropertySource("classpath:application.properties") 
@EnableJpaRepositories 
@EnableTransactionManagement 
public class ApplicationContext extends WebMvcConfigurerAdapter { 

    @Bean 
    public DataSource dataSource() { 
     DriverManagerDataSource datasource = new DriverManagerDataSource(); 
     datasource.setDriverClassName("org.postgresql.Driver"); 
     datasource.setUrl("jdbc:postgresql://localhost/expert"); 
     datasource.setUsername("expert"); 
     datasource.setPassword("expert"); 
     return datasource; 
    } 

    @Bean 
    public JdbcTemplate jdbcTemplate() { 
     return new JdbcTemplate(dataSource()); 
    } 

    @Bean 
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() { 
     LocalContainerEntityManagerFactoryBean factoryBean 
       = new LocalContainerEntityManagerFactoryBean(); 
     factoryBean.setDataSource(dataSource()); 
     factoryBean.setPackagesToScan(new String[ ] { "test.model" }); 
     JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter(); 
     factoryBean.setJpaVendorAdapter(vendorAdapter); 
     factoryBean.setJpaProperties(this.additionalProperties()); 
     return factoryBean; 
    } 

    @Bean 
    public PlatformTransactionManager transactionManager() { 
     JpaTransactionManager transactionManager = new JpaTransactionManager(); 
     transactionManager.setEntityManagerFactory(entityManagerFactory().getObject()); 
     return transactionManager; 
    } 

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

    Properties additionalProperties() { 
     Properties properties = new Properties(); 
     properties.setProperty("hibernate.show_sql", "true"); 
     properties.setProperty("hibernate.format_sql", "false"); 
     properties.setProperty("hibernate.hbm2ddl.auto", "update"); 
     properties.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect"); 
     return properties; 
    } 

} 

Моя служба:

@Service 
@Transactional 
public class ApiProjectServiceImpl implements ApiProjectService { 

    @Autowired 
    private ApiProjectRepository apiProjectRepository; 

    public Project getProject(Integer id) { 
     return apiProjectRepository.getProject(id); 
    } 

    public Project save(Project project) { return apiProjectRepository.save(project); } 

} 

И репозиторий:

@Repository 
public class ApiProjectRepositoryImpl implements ApiProjectRepository { 

    @PersistenceContext 
    private EntityManager em; 

    public Project getProject(Integer id) { 
     Project project = em.createQuery("select p from Project p where id = " + id, Project.class) 
       .getSingleResult(); 
     return project; 
    } 

    public Project save(Project project) { 
     project = em.merge(project); 
     em.flush(); 
     return project; 
    } 

} 

StackTrace при попытке save():

2015-12-19 18:15:05 DEBUG FilterSecurityInterceptor:215 - Authorization successful 
2015-12-19 18:15:05 DEBUG FilterSecurityInterceptor:227 - RunAsManager did not change Authentication object 
2015-12-19 18:15:05 DEBUG FilterChainProxy:323 - /api/project reached end of additional filter chain; proceeding with original chain 
2015-12-19 18:15:05 DEBUG OpenEntityManagerInViewFilter:160 - Opening JPA EntityManager in OpenEntityManagerInViewFilter 
2015-12-19 18:15:05 DEBUG DispatcherServlet:823 - DispatcherServlet with name 'dispatcher' processing POST request for [/api/project] 
2015-12-19 18:15:05 DEBUG RequestMappingHandlerMapping:229 - Looking up handler method for path /api/project 
2015-12-19 18:15:05 DEBUG RequestMappingHandlerMapping:234 - Returning handler method [public test.model.Project test.api.ApiController.saveProject(test.model.Project)] 
2015-12-19 18:15:05 DEBUG DefaultListableBeanFactory:246 - Returning cached instance of singleton bean 'apiController' 
2015-12-19 18:15:05 DEBUG RequestResponseBodyMethodProcessor:140 - Reading [class test.model.Project] as "application/json;charset=UTF-8" using [org.springframework.http.converter.json.MappingJacksonHttpMessageConverter@71528048] 
2015-12-19 18:15:05 DEBUG Loader:2136 - Loading entity: [test.model.Project#16623] 
2015-12-19 18:15:05 DEBUG SQL:109 - select project0_.id as id1_6_1_, project0_.awarded as awarded2_6_1_, project0_.broker as broker3_6_1_, project0_.brokerEmail as brokerEm4_6_1_, project0_.brokerPhone as [...] 
2015-12-19 18:15:05 DEBUG LogicalConnectionImpl:226 - Obtaining JDBC connection 
2015-12-19 18:15:05 DEBUG DriverManagerDataSource:162 - Creating new JDBC DriverManager Connection to [jdbc:postgresql://localhost/expert] 
2015-12-19 18:15:05 DEBUG LogicalConnectionImpl:232 - Obtained JDBC connection 
2015-12-19 18:15:05 DEBUG Loader:951 - Result set row: 0 
2015-12-19 18:15:05 DEBUG Loader:1485 - Result row: null, EntityKey[test.model.Project#16623] 
2015-12-19 18:15:05 DEBUG Loader:1336 - Result set contains (possibly empty) collection: [test.model.Project.assignedExperts#16623] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:160 - Resolving associations for [test.model.Project#16623] 
2015-12-19 18:15:05 DEBUG Loader:2136 - Loading entity: [test.model.Company#3] 
2015-12-19 18:15:05 DEBUG SQL:109 - select company0_.id as id1_1_0_, company0_.email as email2_1_0_, company0_.name as name3_1_0_ from Company company0_ where company0_.id=? 
2015-12-19 18:15:05 DEBUG Loader:951 - Result set row: 0 
2015-12-19 18:15:05 DEBUG Loader:1485 - Result row: EntityKey[test.model.Company#3] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:160 - Resolving associations for [test.model.Company#3] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:286 - Done materializing entity [test.model.Company#3] 
2015-12-19 18:15:05 DEBUG Loader:2160 - Done entity load 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:286 - Done materializing entity [test.model.Project#16623] 
2015-12-19 18:15:05 DEBUG CollectionLoadContext:232 - 1 collections were found in result set for role: test.model.Project.assignedExperts 
2015-12-19 18:15:05 DEBUG CollectionLoadContext:280 - Collection fully initialized: [test.model.Project.assignedExperts#16623] 
2015-12-19 18:15:05 DEBUG CollectionLoadContext:240 - 1 collections initialized for role: test.model.Project.assignedExperts 
2015-12-19 18:15:05 DEBUG Loader:2160 - Done entity load 
2015-12-19 18:15:05 DEBUG Loader:2136 - Loading entity: [test.model.Logging#35672] 
2015-12-19 18:15:05 DEBUG SQL:109 - select logging0_.id as id1_4_0_, logging0_.date as date2_4_0_, logging0_.message as message3_4_0_, logging0_.project_id as project_5_4_0_, logging0_.username as username4_4_0_ from [...] 
2015-12-19 18:15:05 DEBUG Loader:951 - Result set row: 0 
2015-12-19 18:15:05 DEBUG Loader:1485 - Result row: EntityKey[test.model.Logging#35672] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:160 - Resolving associations for [test.model.Logging#35672] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:286 - Done materializing entity [test.model.Logging#35672] 
2015-12-19 18:15:05 DEBUG Loader:2160 - Done entity load 
2015-12-19 18:15:05 DEBUG Loader:2136 - Loading entity: [test.model.Logging#35673] 
2015-12-19 18:15:05 DEBUG SQL:109 - select logging0_.id as id1_4_0_, logging0_.date as date2_4_0_, logging0_.message as message3_4_0_, logging0_.project_id as project_5_4_0_, logging0_.username as username4_4_0_ from [...] 
2015-12-19 18:15:05 DEBUG Loader:951 - Result set row: 0 
2015-12-19 18:15:05 DEBUG Loader:1485 - Result row: EntityKey[test.model.Logging#35673] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:160 - Resolving associations for [test.model.Logging#35673] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:286 - Done materializing entity [test.model.Logging#35673] 
2015-12-19 18:15:05 DEBUG Loader:2160 - Done entity load 
2015-12-19 18:15:05 DEBUG Loader:2136 - Loading entity: [test.model.Party#4903] 
2015-12-19 18:15:05 DEBUG SQL:109 - select party0_.id as id1_5_0_, party0_.addressCity as addressC2_5_0_, party0_.addressStreet as addressS3_5_0_, party0_.addressZip as addressZ4_5_0_, party0_.email as email5_5_0_, party0_.expert as [...] 
2015-12-19 18:15:05 DEBUG Loader:951 - Result set row: 0 
2015-12-19 18:15:05 DEBUG Loader:1485 - Result row: EntityKey[test.model.Party#4903] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:160 - Resolving associations for [test.model.Party#4903] 
2015-12-19 18:15:05 DEBUG TwoPhaseLoad:286 - Done materializing entity [test.model.Party#4903] 
2015-12-19 18:15:05 DEBUG Loader:2160 - Done entity load 
2015-12-19 18:15:05 DEBUG ExceptionHandlerExceptionResolver:132 - Resolving exception from handler [public test.model.Project test.api.ApiController.saveProject(test.model.Project)]: org.springframework.dao.InvalidDataAccessApiUsageException: no transaction is in progress; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress 
2015-12-19 18:15:05 DEBUG ResponseStatusExceptionResolver:132 - Resolving exception from handler [public test.model.Project test.api.ApiController.saveProject(test.model.Project)]: org.springframework.dao.InvalidDataAccessApiUsageException: no transaction is in progress; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress 
2015-12-19 18:15:05 DEBUG DefaultHandlerExceptionResolver:132 - Resolving exception from handler [public test.model.Project test.api.ApiController.saveProject(test.model.Project)]: org.springframework.dao.InvalidDataAccessApiUsageException: no transaction is in progress; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress 
2015-12-19 18:15:05 DEBUG DispatcherServlet:976 - Could not complete request 
org.springframework.dao.InvalidDataAccessApiUsageException: no transaction is in progress; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress 
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:413) 
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:157) 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:417) 
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58) 
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) 
    at com.sun.proxy.$Proxy48.save(Unknown Source) 
    at test.api.ApiProjectServiceImpl.save(ApiProjectServiceImpl.java:24) 
    at test.api.ApiController.saveProject(ApiController.java:58) 
    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.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:177) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) 
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482) 
    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: javax.persistence.TransactionRequiredException: no transaction is in progress 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.checkTransactionNeeded(AbstractEntityManagerImpl.java:1171) 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:1332) 
    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.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:342) 
    at com.sun.proxy.$Proxy39.flush(Unknown Source) 
    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.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:262) 
    at com.sun.proxy.$Proxy39.flush(Unknown Source) 
    at test.api.ApiProjectRepositoryImpl.save(ApiProjectRepositoryImpl.java:35) 
    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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155) 
    ... 79 more 
2015-12-19 18:15:05 DEBUG OpenEntityManagerInViewFilter:185 - Closing JPA EntityManager in OpenEntityManagerInViewFilter 
2015-12-19 18:15:05 DEBUG EntityManagerFactoryUtils:435 - Closing JPA EntityManager 
2015-12-19 18:15:05 DEBUG LogicalConnectionImpl:246 - Releasing JDBC connection 
2015-12-19 18:15:05 DEBUG LogicalConnectionImpl:264 - Released JDBC connection 
2015-12-19 18:15:05 DEBUG SecurityContextPersistenceFilter:97 - SecurityContextHolder now cleared, as request processing completed 

Спасибо!

Обновление 1 Видимо проблема была решена путем обновления с Spring 3.2.8 до Spring 4.2.0. Я не вносил никаких изменений в код, я знаю, что транзакция необходима, но реализация службы аннотируется @Transactional. Спасибо всем.

Answer 1

Как и @Neil Stockton, некоторые функции EntityManager требуют, чтобы Транзакция существовала. see the doc

Вот doc о flush функции:

недействительных заподлицо() Синхронизировать контекст сохранения в базовой базы данных. Броски: TransactionRequiredException - если нет сделки или если управляющий объект не присоединился к текущему PersistenceException транзакции - если флеш не удается

То же самое касается Merge функции, а также:

T merge (объект T) Объединить состояние данного объекта в контексте текущей константы сохранения . Параметры: entity-entity-экземпляр Возвраты: управляемый экземпляр, в котором состояние было объединено с Throws: IllegalArgumentException - если экземпляр не является сущностью или является удаленным объектом TransactionRequiredException - если нет транзакции при вызове в управляемой контейнером лицо менеджер этой имеет тип PersistenceContextType.TRANSACTION

Поэтому в основном то, что вы хотите создать new transaction или использовать exists один.Так как вы используете @EnableTransactionManagement аннотацию вы можете просто аннотировать вам метод для того, чтобы сделать это

@Transactional(propagation=Propagation.REQUIRED) 
public Project save(Project project) { 
     project = em.merge(project); 
     em.flush(); 
     return project; 
    } 

Подробнее о Spring Сделки могут быть найдены на spring docs. Более transactions в java можно найти at ibm, который настоятельно рекомендуется.