小编Iap*_*rim的帖子

我在查看页面时收到这些错误日志

ERROR [TP-Processor11] (LazyInitializationException.java:42) - could not initialize proxy - no Session
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
    at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:132)
    at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:174)
    at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
    at org.osmoz.contents.model.enm.ContentType_$$_javassist_71.getDefaultShortMode(ContentType_$$_javassist_71.java)
    at org.osmoz.contents.web.tapestry.components.EnmContentZone.getTemplate(EnmContentZone.java:67)
    at org.osmoz.contents.web.tapestry.base.AbstractRawContentZone.getContent(AbstractRawContentZone.java:67)
    at $PropertyConduit_1276091af82.get($PropertyConduit_1276091af82.java)
    at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.java:58)
    at org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl$1.read(InternalComponentResourcesImpl.java:510)
    at org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl$1.read(InternalComponentResourcesImpl.java:496)
    at org.apache.tapestry5.corelib.components.OutputRaw._$read_parameter_value(OutputRaw.java)
    at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputRaw.java:43)
    at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputRaw.java)
    at

我知道问题是Session已经关闭了.但我真的不知道为什么这个错误不会经常发生,为什么我不知道根本原因.

环境:

Tapestry5,JPA,Hibernate 3.3.2.GA

我已经定了

<filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>

在web.xml中也是

我想通过安装audittrail 模块来管理OpenERP 用户的活动。
创建一些规则后（定义将监视哪个用户、哪个对象和哪个活动（创建、更新..））。我更新了产品以查看其是否有效。
当我尝试更新产品时，出现系统错误。看到日志，我得到
[2010-08-31 12:53:35,042] 游标未显式关闭
[2010-08-31 12:53:35,043] 游标是在 /home/pilgrim/working/sources/addons/audittrail 创建的/audittrail.py:204
这是导致错误的行
cr = pooler.get_db(db).cursor()
查看 sql_db.py，我得到了评论

def __del__(self):
    if not self.__closed:
        # Oops. 'self' has not been closed explicitly.
        # The cursor will be deleted by the garbage collector,
        # but the database connection is not put back into the connection
        # pool, preventing some operation on the database like dropping it.
        # This can also lead to a server overload.
        msg = "Cursor not closed explicitly\n" …