我使用Spring 4，Hibernate 4和JSF 2.2开发webapp。我正在尝试使用OpenSessionInViewFilter来避免LazyInitializationException但我失败了。我的班级顾问有这样的字段：
@OneToMany(fetch = FetchType.LAZY, mappedBy = "consultant")
private List<Product> products;
现在在我的顾问对象的其他课程中，我正在尝试使用上述字段获取产品：
List<Product> products = consultant.getProducts();
然后抛出LazyInitializationException。这是我的日志（我看不到任何可疑的东西）：
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.]
在 web.xml 中，我添加了（在任何其他过滤器之前）：
<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>
如何获得异常以及如何避免这种情况？我也尝试过OpenSessionInViewInterceptor但是没有用，或者我做错了。
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。