a different object with the same identifier value was already associated with the session
The with object session value was already same
2023-09-27 14:24:39 时间
错误场景：
文章修改的时候，先使用id把原来的旧文章查出来，然后，获得作者信息，和当前提交修改的session中的用户的用户名进行比对
然后进行验证控制
参考这篇文章，比较老了，
https://blog.csdn.net/u012230055/article/details/40423903
hibernate 4这样用 session.clear();
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