deleted object would be re-saved by cascade (remove deleted object from asso錯誤
方法1 刪除Set方的cascade
方法2 解決關聯關係後,再刪除 :
方法3 在many-to-one方增加cascade 但值不能是none
以one-To-many為例:
1.如果Many端存在於One端的集合中,直接刪除Many,就會丟擲"deleted object would be re-saved by
cascade"的異常,解決辦法是在One端的集合中先刪除Many端(先把他們之間的聯絡割斷),然後再在Hibernate
中刪除Many端。
但在JDBC下直接刪除Many端是可以的。
2.如果直接刪除One端:
A.如果One端中沒有設定Cascade為delete或者all,就會丟擲“Cannot delete or update a parent row: a
foreign key constraint fails”的異常。在JDBC下也是不行的(在建表時設定 ON DELETE CASCADE除外),因
為Hibernate只是把JDBC下的異常封裝而已。
B.如果One端中設定Cascade為delete或者all,刪除的時候就會把所有Many端都刪除。
其他參考:
在刪除的方法中加入這樣幾句程式碼就可以了
Orders od=(Orders)session.load(Orders.class,item.getOrderId());
od.getOrderItems().remove(item);
相關推薦
解決hibernate 刪除異常: deleted object would be re-saved by cascade (remove deleted ob
解決辦法: 方法1 刪除Set方的cascade 方法2 解決關聯關係後,再刪除 : 方法3 在many-to-one方增加cascade 但值不能是none 以one-To-many為例: 1.如果Many端存在於One端的集合中,直接刪除Many,就會丟擲"deleted object would be
解決org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations)
相關程式碼:===============================================public class VoteQuestion { private Set options = new HashSet(); 。。。 /** * @h
deleted object would be re-saved by cascade (remove deleted object from asso錯誤
方法1 刪除Set方的cascade 方法2 解決關聯關係後,再刪除 : 方法3 在many-to-one方增加cascade 但值不能是none 以one-To-many為例: 1.如果Many端存在於One端的集合中,直接刪除Many,就會丟擲"deleted object would be re-sa
解決hibernate 刪除異常: deleted object would be re-saved by cascade (remove deleted object from associations)
在hibernate 刪除關聯時會出現eleted object would be re-saved by cascade (remove deleted object from associations)的異常,結合別人的和自己的經驗通常有三種解決的方案: 方法1 刪除Se
Hibernate之deleted object would be re-saved by cascade 異常的解決
在Hibernate中,通過級聯刪除存在關聯關係的一個物件時,會出現 org.hibernate.ObjectDeletedException: deleted object would be re-
Hibernate中ManyToOne刪除Many的一方出現 deleted object would be re-saved by cascade
最近在寫SSH整合時出現了 deleted object would be re-saved by cascade這個錯誤 我的Hibernate關係對映檔案如下 <many-
git pull報error: Untracked working tree file 'public/images/icon.gif' would be overwritten by merge
需要 written git pull 命令 work har nbsp ima merge error: Untracked working tree file ‘public/images/icon.gif‘ would be overwritten by merge.
git pull遇到錯誤:error: Your local changes to the following files would be overwritten by merge:
覆蓋 eset class 代碼更新 hang err ast div clas 今天用git pull將服務器的代碼拉到本地時,遇到錯誤,Your local changes to the following files would be overwritten by
git pull 錯誤:The following untracked working tree files would be overwritten by merge
seekbar change ora uil KS dex output con 方法 錯誤描述: $ git pull origin alphaFrom https://github.com/shirley-wu/HeartTrace * branch
在Linux上git pull線上倉庫代碼時,出現error: Your local changes to the following files would be overwritten by merge
chan 導致 系統權限 over local tar erro 關閉 oca 在Windows上工作時未出現過該問題,於是通過命令: git diff 查看差異,得到結果: diff --git a/start_crons.sh b/start_crons.sh o
The following untracked working tree files would be overwritten by checkout
win article files art com ima The img 分享圖片 sourcetree拉取分支出現這個錯: The following untracked working tree files would be overwritten by checko
git merge 報錯:error: Your local changes to the following files would be overwritten by m
error log: error: Your local changes to the following files would be overwritten by merge: app/Http/Controllers/User/UserIndexController.php Plea
IDEA使用git報錯LF would be replaced by CRLF in .gitignore (moments ago)
1.首先使用,如果還是報錯,則使用2的方法 2.提示CRLF和LF的換行處理問題LF will be replaced by CRLF $git config --global core.autocrlf true core.autocrlf是git
Git Pull Failed :Your local changes would be overwritten by merge. Commit, stash or revert them
在使用git進行程式碼pull’的時候,出現下面的問題: Git Pull Failed :Your local changes would be overwritten by merge. Commit, stash or revert them ①如果你想保留剛自己寫的沒有
Git之checkout到別的分支提示Your local changes to the following files would be overwritten by checkout:
1 問題 在我自己的分支,然後切換到主分支,提示錯誤如下 Your local changes to the following files would be overwritten by checkout: ****file ****file 2
git pull遇到錯誤:error: Your local changes to the following files would be overwritten by merge:解決方法
error: Your local changes to the following files would be overwritten by merge: 意思是我桌上型電腦上新修改的程式碼的檔案,將會被git伺服器上的程式碼覆蓋;我當然不想剛剛寫的程式碼被覆蓋掉,看了git的手
fatal: LF would be replaced by CRLF 問題解決
在windows平臺下git add 的時候經常會出現如下錯誤 先說問題怎麼解決,執行命令即可解決 git config --global core.autocrlf false 問題原因: git在windows下,預設是CRLF作為換行符,git add 提交
git解決error: The following untracked working tree files would be overwritten by checkout
git解決error: The following untracked working tree files would be overwritten by checkout 2017年12月27日 12:09:50 閱讀數:1792 在IDEA中進行分支切換時,出現如此錯誤,導致無法正
Py第十九問 Your local changes would be overwritten by merge. Commit, stash or revert them to proceed.
Your local changes would be overwritten by merge. Commit, stash or revert them to proceed. 2和3分別是截圖中的兩個紅框
【Debug-git】error:. local changes to the following files would be overwritten by merge:.idea/misc.xml
公司、個人編譯環境可能是有某些不為人知的差異,每次用git命令pull的時候,總會遇到一些奇葩問題,比如: ...done. Resolving deltas: 100% (55/55), completed with 29 local objects. From http