Hibernate3 错误: could not initialize proxy - no Session

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Hibernate3 错误: could not initialize proxy - no Session
异常:
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111
)

原因:hibernate3 many-to-one的默认选项是 lazy = "proxy"
解决方法:<many-to-one>  & <set> 中设置 lazy="false"
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