解决a different object with the same identifier value was already associated with the session错误 .
：a different object with the same identifier value was alrea ...
原文：a different object with the same identifier value was already associated with the session解决方案
触发场景，解决方案： . show业务操作，开启一个session ，从中查出一些实体，这时某个实体是存在于session中的持久化对象。通过业务逻辑将此实体用于页面展示。此时这个session并未关闭。 . 这时执行一步save业务逻辑，将上一步获得的实体id传回后台 。这时通过new的方式创建了一个临时对象，并且我将传回的id作为主键赋值给了临时对象。然后调用了session.save ob ...
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