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 ...
原文：a different object with the same identifier value was already associated with the session解決方案
觸發場景，解決方案： . show業務操作，開啟一個session ，從中查出一些實體，這時某個實體是存在於session中的持久化對象。通過業務邏輯將此實體用於頁面展示。此時這個session並未關閉。 . 這時執行一步save業務邏輯，將上一步獲得的實體id傳回后台 。這時通過new的方式創建了一個臨時對象，並且我將傳回的id作為主鍵賦值給了臨時對象。然后調用了session.save ob ...
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