为什么多对一的关系在hbm.xml文件中必须把class标签的lazy属性值必须设置成false才可以,还有返回查询返回List对象结果集时必须将hbm.xml文件的hibernate-mapping的属性default-lazy值设置成false否则就会出现下面的错误啊
08:42:43,546 ERROR LazyInitializationException:19 - could not initialize proxy - the owning Session was closed
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:60)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:172)