Spring LazyInitializationException，尽管存在OpenSessionInViewFilter

我使用Spring4、Hibernate4和JSF2.2开发webapp。我试图使用OpenSessionInViewFilter来避免LazyInitializationException，但失败了。我有一个顾问班，这个领域：

@OneToMany(fetch = FetchType.LAZY, mappedBy = "consultant")
private List<Product> products;

在web.xml中，我添加了（在任何其他过滤器之前）：

冬眠过滤器
org.springframework.orm.hibernate4.support.OpenSessionInViewFilter
sessionFactoryBeanName
会话工厂
冬眠过滤器
/*
要求
向前地

如何获取异常以及如何避免此异常？我还尝试了OpenSessionInviewWinterCeptor，但没有成功，或者我做错了什么

我花了很多时间试图解决这个问题，阅读了很多主题和教程，但没有任何帮助

---

提前感谢您的帮助。

请求一进来，

OpenSessionInViewFilter

就会打开会话，并在请求处理完毕后关闭会话。现在，如果收到新请求，它不会重新附加任何内容，因此，如果您首先检索您的

顾问
，并期望它在下一个请求期间仍处于活动状态，您将失败，因为情况并非如此，过滤器也不是这样工作的。谢谢您的评论。然后，我将不得不再次从数据库中检索我的顾问，对吗？这是唯一的方法还是我可以做得更好呢？您的控制器（我在本例中怀疑是您的JSFbean）应该为视图准备数据，因此如果需要，可以在手之前检索数据。否则，为下一个请求再次检索对象（或将其重新附加到新会话）。谢谢，它可以正常工作。无论如何，不存在任何方法（使用AOP、过滤器或其他方法）来避免手动检索（刷新）实体？我的意思是自动重新连接hibernate会话或类似的东西。
List<Product> products = consultant.getProducts();

Using SessionFactory 'sessionFactory' for OpenSessionInViewFilter
Returning cached instance of singleton bean 'sessionFactory'
Opening Hibernate Session in OpenSessionInViewFilter
/consultant/products.xhtml at position 1 of 11 in additional filter chain; firing Filter: 'SecurityContextPersistenceFilter'
Obtained a valid SecurityContext from SPRING_SECURITY_CONTEXT: 'org.springframework.security.core.context.SecurityContextImpl@f8b7e57f: Authentication: org.springframework.security.authentication.UsernamePasswordAuthenticationToken@f8b7e57f: Principal: User{userId=1, username=doradca@doradca.pl, password=$2a$10$ALqnZKxx9anO/4XnBjtt1Ocm4GC1KDfrAlIz/iV66RWANklk31WqW, authorities=[Authority{role=CONSULTANT}], accountNonExpired=true, accountNonLocked=true, credentialsNonExpired=true, enabled=true}; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@2cd90: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: 9ED9D61F10507CAF3B77109D465B9AD6; Granted Authorities: Authority{role=CONSULTANT}'
/consultant/products.xhtml at position 2 of 11 in additional filter chain; firing Filter: 'WebAsyncManagerIntegrationFilter'
/consultant/products.xhtml at position 3 of 11 in additional filter chain; firing Filter: 'LogoutFilter'
/consultant/products.xhtml at position 4 of 11 in additional filter chain; firing Filter: 'UsernamePasswordAuthenticationFilter'
/consultant/products.xhtml at position 5 of 11 in additional filter chain; firing Filter: 'BasicAuthenticationFilter'
/consultant/products.xhtml at position 6 of 11 in additional filter chain; firing Filter: 'RequestCacheAwareFilter'
pathInfo: both null (property equals)
queryString: both null (property equals)
requestURI: arg1=/EuroBroker/consultant/products.xhtml; arg2=/EuroBroker/consultant/products.xhtml (property equals)
serverPort: arg1=8080; arg2=8080 (property equals)
requestURL: arg1=http://localhost:8080/EuroBroker/consultant/products.xhtml; arg2=http://localhost:8080/EuroBroker/consultant/products.xhtml (property equals)
scheme: arg1=http; arg2=http (property equals)
serverName: arg1=localhost; arg2=localhost (property equals)
contextPath: arg1=/EuroBroker; arg2=/EuroBroker (property equals)
servletPath: arg1=/consultant/products.xhtml; arg2=/consultant/products.xhtml (property equals)
Removing DefaultSavedRequest from session if present
/consultant/products.xhtml at position 7 of 11 in additional filter chain; firing Filter: 'SecurityContextHolderAwareRequestFilter'
/consultant/products.xhtml at position 8 of 11 in additional filter chain; firing Filter: 'AnonymousAuthenticationFilter'
SecurityContextHolder not populated with anonymous token, as it already contained: 'org.springframework.security.authentication.UsernamePasswordAuthenticationToken@f8b7e57f: Principal: User{userId=1, username=doradca@doradca.pl, password=$2a$10$ALqnZKxx9anO/4XnBjtt1Ocm4GC1KDfrAlIz/iV66RWANklk31WqW, authorities=[Authority{role=CONSULTANT}], accountNonExpired=true, accountNonLocked=true, credentialsNonExpired=true, enabled=true}; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@2cd90: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: 9ED9D61F10507CAF3B77109D465B9AD6; Granted Authorities: Authority{role=CONSULTANT}'
/consultant/products.xhtml at position 9 of 11 in additional filter chain; firing Filter: 'SessionManagementFilter'
/consultant/products.xhtml at position 10 of 11 in additional filter chain; firing Filter: 'ExceptionTranslationFilter'
/consultant/products.xhtml at position 11 of 11 in additional filter chain; firing Filter: 'FilterSecurityInterceptor'
Checking match of request : '/consultant/products.xhtml'; against '/consultant/**'
Secure object: FilterInvocation: URL: /consultant/products.xhtml; Attributes: [hasRole('CONSULTANT')]
Previously Authenticated: org.springframework.security.authentication.UsernamePasswordAuthenticationToken@f8b7e57f: Principal: User{userId=1, username=doradca@doradca.pl, password=$2a$10$ALqnZKxx9anO/4XnBjtt1Ocm4GC1KDfrAlIz/iV66RWANklk31WqW, authorities=[Authority{role=CONSULTANT}], accountNonExpired=true, accountNonLocked=true, credentialsNonExpired=true, enabled=true}; Credentials: [PROTECTED]; Authenticated: true; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@2cd90: RemoteIpAddress: 0:0:0:0:0:0:0:1; SessionId: 9ED9D61F10507CAF3B77109D465B9AD6; Granted Authorities: Authority{role=CONSULTANT}
Voter: org.springframework.security.web.access.expression.WebExpressionVoter@16ed6204, returned: 1
Authorization successful
RunAsManager did not change Authentication object
/consultant/products.xhtml reached end of additional filter chain; proceeding with original chain
Entering JSF Phase: RESTORE_VIEW 1
Entering JSF Phase: RENDER_RESPONSE 6
Returning cached instance of singleton bean 'org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler#0'
Returning cached instance of singleton bean 'org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler#0'
Returning cached instance of singleton bean 'org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler#0'
Returning cached instance of singleton bean 'accountManager'
Returning cached instance of singleton bean 'insuranceService'
Returning cached instance of singleton bean 'insuranceService'
Chain processed normally
SecurityContextHolder now cleared, as request processing completed
Closing Hibernate Session in OpenSessionInViewFilter
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@373d727a -- Running DeadlockDetector[Exiting. No pending tasks.]
Returning cached instance of singleton bean 'transactionManager'
Creating new transaction with name [com.efsf.eurobroker.user.logic.TokenCleanerCron.deleteOldTokens]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
Opened new Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])] for Hibernate transaction
Preparing JDBC Connection of Hibernate Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])]
trace com.mchange.v2.resourcepool.BasicResourcePool@6383a319 [managed: 5, unused: 4, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@4c7576d0)
Exposing Hibernate transaction as JDBC transaction [com.mchange.v2.c3p0.impl.NewProxyConnection@330b16dd]
Returning cached instance of singleton bean 'transactionManager'
Found thread-bound Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])] for Hibernate transaction
Participating in existing transaction
com.mchange.v2.c3p0.stmt.GlobalMaxOnlyStatementCache ----> CACHE HIT
checkoutStatement: com.mchange.v2.c3p0.stmt.GlobalMaxOnlyStatementCache stats -- total size: 4; checked out: 1; num connections: 1; num keys: 4
checkinStatement(): com.mchange.v2.c3p0.stmt.GlobalMaxOnlyStatementCache stats -- total size: 4; checked out: 0; num connections: 1; num keys: 4
Initiating transaction commit
Committing Hibernate transaction on Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])]
Closing Hibernate Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])] after transaction
checkinAll(): com.mchange.v2.c3p0.stmt.GlobalMaxOnlyStatementCache stats -- total size: 4; checked out: 0; num connections: 1; num keys: 4
com.mchange.v2.async.ThreadPoolAsynchronousRunner@7f0b008a: Adding task to queue -- com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@5149a61d
trace com.mchange.v2.resourcepool.BasicResourcePool@6383a319 [managed: 5, unused: 4, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@4c7576d0)
checkinAll(): com.mchange.v2.c3p0.stmt.GlobalMaxOnlyStatementCache stats -- total size: 4; checked out: 0; num connections: 1; num keys: 4
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@373d727a -- Running DeadlockDetector[Exiting. No pending tasks.]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@373d727a -- Running DeadlockDetector[Exiting. No pending tasks.]

<filter>
    <filter-name>hibernateFilter</filter-name>
    <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
    <init-param>
        <param-name>sessionFactoryBeanName</param-name>
        <param-value>sessionFactory</param-value>
    </init-param>      
</filter>

<filter-mapping>
    <filter-name>hibernateFilter</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>FORWARD</dispatcher>
</filter-mapping>