org.springframework.dao.DuplicateKeyException: 問題
org.springframework.dao.DuplicateKeyException: a different object with the same identifier value was already associated with the session ...
原文：org.springframework.dao.DuplicateKeyException: a different object with the same identifier value was
在使用hibernate框架里面的:saveOrUpdate報錯： 意思就是另一個對象的id id同值 已經被session關聯了。 原因分析： 在第 步中中通過titleList.get 獲取一個對象duty ,在第 步中將duty的dutyId設置成duty 的dutyId,而duty 本來就是存在一級緩存session里面的，在第 步時saveOrUpdate duty 相當於內存中存在兩個 ...
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org.springframework.dao.DuplicateKeyException: 問題
轉自：https://blog.51cto.com/chengxuyuan/1786938 org.springframework.dao.DuplicateKeyException: a different object with the same identifier value ...
org.hibernate.NonUniqueObjectException: a different object with the same identifier value was alread---------程序報錯
今天遇到了這個問題： org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session:…… 找 ...
a different object with the same identifier value was already associated with the session
出來.org.springframework.orm.hibernate.HibernateSystemException: a dif ...
解決a different object with the same identifier value was already associated with the session錯誤 .
：a different object with the same identifier value was alrea ...
解決a different object with the same identifier value was already associated with the session錯誤
20:41:15 今天做一個saveorupdate操作報錯: org.springframework.orm.hibernate3.HibernateSystemException: a different object with the same identifier ...
org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier:
JSP 頁面保存操作報錯： org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier: ------------------------------------------------------------------------------------ ...