Java “org.hibernate.PersistentObjectException：分离实体传递给持久化”当我尝试在数据库中插入数据时
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时间：2020-08-14 14:27:25 来源:igfitidea点击:
"org.hibernate.PersistentObjectException: detached entity passed to persist" when I try insert data in the database
提问by Kleber Mota
I am trying persist an entity class in database, and for that I try several differents implementations for my classes, and still facing errors (but different errors). My entity class is right now like this:
我正在尝试在数据库中保留一个实体类，为此我为我的类尝试了几种不同的实现，但仍然面临错误（但不同的错误）。我的实体类现在是这样的：
@Entity
@Table(name="pagina")
public class Pagina extends Entidade {
@Id
@Column(name = "id")
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer Id;
@Column(name = "nome", unique=true)
private String nome;
@Column(name = "titulo")
private String titulo;
@Column(name = "descricao")
private String descricao;
@OneToOne( cascade = {CascadeType.ALL}, fetch = FetchType.EAGER )
@JoinColumn(name="parent_page")
@Cascade(org.hibernate.annotations.CascadeType.ALL)
private Pagina pagina;
@OneToOne( cascade = {CascadeType.ALL}, fetch = FetchType.EAGER )
@JoinColumn(name="parent_product")
@Cascade(org.hibernate.annotations.CascadeType.ALL)
private Produto produto;
}
In my Dao class, I try this two implementations for my method persist(...):
在我的 Dao 类中，我为我的方法尝试了这两种实现persist(...)：
@Transactional
public boolean persist(E transientInstance) {
try {
sessionFactory.getCurrentSession().persist(transientInstance);
return true;
} catch (RuntimeException e) {
e.printStackTrace();
return false;
}
}
and
和
@Transactional
public boolean persist(E transientInstance) {
try {
sessionFactory.getCurrentSession().save(transientInstance);
return true;
} catch (RuntimeException e) {
e.printStackTrace();
return false;
}
}
with both options, if I try save an entity without no atribute Pagina or Produto, it's stored in the database with no problems. But if I try submit data with this atributes, I face problems.
使用这两个选项，如果我尝试保存没有属性 Pagina 或 Produto 的实体，它会毫无问题地存储在数据库中。但是，如果我尝试使用此属性提交数据，则会遇到问题。
with the first option, an exception org.hibernate.PersistentObjectException: detached entity passed to persistis triggered, and with the second option, the data is stored in the database, but with error, since a extra row with no values are stored in the database, and the line with the data I inserted points to that line.
使用第一个选项，org.hibernate.PersistentObjectException: detached entity passed to persist触发异常，使用第二个选项，数据存储在数据库中，但出现错误，因为数据库中存储了一个没有值的额外行，而我插入的数据行指向到那条线。
Anyone knows what's happening here? Because I have no clue.
有谁知道这里发生了什么？因为我没有头绪。
PS:
PS：
I have this view to insert data in that table:
我有这个视图在该表中插入数据：
<html lang="en">
<head>
<title>Pagina</title>
</head>
<body>
<h1>Cadastro de Pagina</h1>
<form id="command" role="form" class="form" action="Pagina/cadastra" method="post">
<div class="panel panel-default">
<div class="panel-heading">
</div>
<div class="panel-body">
<p>
<label for="nome" class="form-control">nome</label>
<input id="nome" name="nome" class="form-control" type="text" value=""/>
</p>
<p>
<label for="titulo" class="form-control">titulo</label>
<input id="titulo" name="titulo" class="form-control" type="text" value=""/>
</p>
<p>
<label for="descricao" class="form-control">descricao</label>
<textarea id="descricao" name="descricao" class="form-control"></textarea>
</p>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
Pagina
</div>
<div class="panel-body">
<input type="checkbox" name="Pagina.id" value="2">two<br>
<input type="checkbox" name="Pagina.id" value="1">one<br>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
Produto
</div>
<div class="panel-body">
</div>
</div>
<p>
<button type="submit" class="btn btn-lg btn-primary">Cadastrar</button>
</p>
</form>
<div id="yes" class="alert alert-success" style="display: none;">
<strong>Pronto!</strong> Solicitação efetuada com sucesso.
</div>
<div id="not" class="alert alert-danger" style="display: none;">
<strong>Erro!</strong> Não foi possivel efetivar a sua solicitação.
</div>
</body>
</html>
which is handled by this methods:
这是由这个方法处理的：
in the controller class
在控制器类中
@RequestMapping(value="cadastra", method=RequestMethod.POST)
@ResponseBody
public String cadastra(@ModelAttribute("object") E object, BindingResult result) {
if(serv.cadastra(object))
return "yes";
else
return "not";
}
in the service class
在服务类
@PreAuthorize("hasPermission(#user, 'cadastra_'+#this.this.name)")
@Transactional
public boolean cadastra(E e) {
return dao.persist(e);
}
UPDATE
更新
stacktrace with the error which happens when I try insert an entity:
堆栈跟踪与我尝试插入实体时发生的错误：
org.hibernate.PersistentObjectException: detached entity passed to persist: com.spring.loja.model.pagina.persistence.model.Pagina
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:139)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:801)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:794)
at org.hibernate.engine.spi.CascadingActions.cascade(CascadingActions.java:314)
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:350)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:293)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:161)
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:118)
at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:432)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:265)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:194)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149)
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789)
at com.spring.loja.config.generic.persistence.Dao.persist(Dao.java:33)
at com.spring.loja.config.generic.persistence.Dao$$FastClassBySpringCGLIB$$ddbbe880.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:711)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.spring.loja.model.pagina.persistence.PaginaHome$$EnhancerBySpringCGLIB$cc5cae5.persist(<generated>)
at com.spring.loja.config.generic.service.service.cadastra(service.java:28)
at com.spring.loja.config.generic.service.service$$FastClassBySpringCGLIB$$c92a3159.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:711)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.spring.loja.model.pagina.service.PaginaService$$EnhancerBySpringCGLIB$a378e.cadastra(<generated>)
at com.spring.loja.config.generic.controller.controller.cadastra(controller.java:69)
at com.spring.loja.config.generic.controller.controller$$FastClassBySpringCGLIB$$c8cc444b.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:640)
at com.spring.loja.model.pagina.controller.PaginaController$$EnhancerBySpringCGLIB$79f278_2.cadastra(<generated>)
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:936)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
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:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Jul 13, 2014 9:07:48 PM org.hibernate.AssertionFailure <init>
ERROR: HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: null id in com.spring.loja.model.pagina.persistence.model.Pagina entry (don't flush the Session after an exception occurs)
Jul 13, 2014 9:07:48 PM org.apache.catalina.core.StandardWrapperValve invoke
Grave: Servlet.service() for servlet [jsp_dispatcher] in context with path [/loja] threw exception [Request processing failed; nested exception is org.hibernate.AssertionFailure: null id in com.spring.loja.model.pagina.persistence.model.Pagina entry (don't flush the Session after an exception occurs)] with root cause
org.hibernate.AssertionFailure: null id in com.spring.loja.model.pagina.persistence.model.Pagina entry (don't flush the Session after an exception occurs)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:77)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:192)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:152)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:231)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:102)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:55)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1222)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:555)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:757)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:726)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:272)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.spring.loja.model.pagina.service.PaginaService$$EnhancerBySpringCGLIB$a378e.cadastra(<generated>)
at com.spring.loja.config.generic.controller.controller.cadastra(controller.java:69)
at com.spring.loja.config.generic.controller.controller$$FastClassBySpringCGLIB$$c8cc444b.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:640)
at com.spring.loja.model.pagina.controller.PaginaController$$EnhancerBySpringCGLIB$79f278_2.cadastra(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.web.FilterChainProxy$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$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
采纳答案by Tobb
org.hibernate.PersistentObjectException: detached entity passed to persist
org.hibernate.PersistentObjectException: detached entity passed to persist
This error can be explained like this (ouf, how do I do this without describing the entire object lifecycle of Hibernate/JPA..?):
这个错误可以这样解释（ouf，我该怎么做而不描述 Hibernate/JPA 的整个对象生命周期..？）：
With JPA/Hibernate you define classes to be Entitys. What this means is that objects of this class can be managed by Hibernate, and thus be stored in the database.
使用 JPA/Hibernate，您可以将类定义为Entitys。这意味着该类的对象可以由 Hibernate 管理，从而存储在数据库中。
@Entity
public class Entity { /** ... */ }
When you create a new object of a class that is an Entity(new Entity()), Hibernate knows nothing about it. It is not stored in the database, and is not under the control of Hibernate in any way. If we want these things to happen, we need to persistour object (em.persist(entity)). When we do this, the object state is stored in the database, but also, the object itself becomes managed by Hibernate, which means that Hibernate will keep track of the object's state. In addition, if you have assigned Hibernate to generate id's, the object will be assigned an id.
当您创建一个Entity( new Entity())类的新对象时，Hibernate 对此一无所知。它不存储在数据库中，也不以任何方式受 Hibernate 控制。如果我们希望这些事情发生，我们需要persist我们的对象 ( em.persist(entity))。当我们这样做时，对象状态存储在数据库中，而且对象本身由 Hibernate 管理，这意味着 Hibernate 将跟踪对象的状态。此外，如果您已分配 Hibernate 来生成 id，则该对象将被分配一个 id。
When you load an object from the database through Hibernate, this object will also be managed by Hibernate. A newly persisted, or a loaded object will both have an id, and will both be managed by Hibernate. But, the connection between the object and Hibernate can be broken! When this happens, the object becomes detached. A detachedobject is really just an object of an entityclass, that has its id set, but is not managed by Hibernate.
当你通过 Hibernate 从数据库加载一个对象时，这个对象也会被 Hibernate 管理。新持久化或加载的对象都有一个 id，并且都由 Hibernate 管理。但是，对象和 Hibernate 之间的连接可以被打破！发生这种情况时，对象变为detached。一个detached对象实际上只是一个entity类的对象，它有它的 id 集，但不受 Hibernate 管理。
The options we have when it comes to a detachedobject are different from the ones we have with a managed object, or a new object. Unlike managed objects, detachedobjects are not allowed to be passed to the persist-method, since they already have an id, which means that they must have been persisted already! When one wants to take a detachedobject and make it managed, the merge-method is the one to use. (http://docs.oracle.com/javaee/7/api/javax/persistence/EntityManager.html#merge(T))
This will merge the state of the detached object with the database state corresponding to the objects id.
我们在detached对象方面的选择与我们对托管对象或新对象的选择不同。与托管对象不同，detached不允许将对象传递给persist-method，因为它们已经有一个 id，这意味着它们必须已经被持久化了！当人们想要获取一个detached对象并对其进行管理时，merge可以使用 - 方法。( http://docs.oracle.com/javaee/7/api/javax/persistence/EntityManager.html#merge(T))
这会将分离对象的状态与对象 id 对应的数据库状态合并。
Calling mergewith a new object (without id) will assign an id to it and save it, but beware that it will not do anything with the object pass as a parameter, rather it will return the managed object.
merge使用新对象（没有 id）调用将为它分配一个 id 并保存它，但要注意它不会对作为参数传递的对象执行任何操作，而是返回托管对象。
public Entity saveDetached(final Entity entity) {
return em.merge(entity);
}
In your case, the solution will depend on a few factors, but if the referred Paginawill always be one already existing in the database I would just remove the cascading of the persistoperation from it, and keep using em.persist()(mergehas its weaknesses..) If it might be new sometimes you would additionally need to add some logic to figure out whether or not to persist it (before persisting the owning object). (I also think it might work to load the Paginaand Produtofrom the database and assigning them to the new Paginabefore persist.)
在您的情况下，解决方案将取决于几个因素，但如果引用的Pagina始终是数据库中已经存在的一个，我只会persist从中删除操作的级联，并继续使用em.persist()（merge有其弱点......）如果它有时可能是新的，有时您还需要添加一些逻辑来确定是否要持久化它（在持久化拥有的对象之前）。（我也觉得可能工作加载Pagina并Produto从数据库中，并将它们分配给新的Pagina面前persist。）
TL;DR
TL; 博士
When reintroducing a detachedobject to the persistence-context, use the merge-method of the EntityManager, and not the persist-method.
将detached对象重新引入持久性上下文时，请使用 的merge-method EntityManager，而不是persist-method。
