could not initialize proxy - no Sessionorg.hibernate.LazyInitializationException: failed to lazily
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hibernate lazy的问题
lazy的意义就是当你真正用的时候才会去数据库查询，而hibernate对数据库的查询依赖于hibernate的session，如果在查询之前session关闭了，就会有这个问题:)
两种方法，最笨，也是最方便的，将你的role设置lazy=false,这样的缺陷就是会有资源浪费
或者自己维护session的生命周期，也就是OpenSessionInFilter.
lazy的意义就是当你真正用的时候才会去数据库查询，而hibernate对数据库的查询依赖于hibernate的session，如果在查询之前session关闭了，就会有这个问题:)
两种方法，最笨，也是最方便的，将你的role设置lazy=false,这样的缺陷就是会有资源浪费
或者自己维护session的生命周期，也就是OpenSessionInFilter.
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