英文:
Spring DATA JPA: How to get success/failures while database constraint (Unique key violation) on saving a nested entity
问题
我想在特定情况下保存具有“一对多”关系的实体，其中嵌套实体引发唯一约束异常，而不回滚事务。
我希望保存嵌套实体仍然是唯一的，并且对于重复实体会得到异常。
示例：实体A具有包含X个重复记录的实体B类型的列表/集合。在将其持久化到数据库中时，如果数据库中已经存在记录，我想知道从列表/集合中未能持久化的哪个记录，并且记录能够成功持久化。
以下是与同一问题相关的一些参考：
- https://stackoverflow.com/questions/32691128
- https://stackoverflow.com/questions/15731297
- https://stackoverflow.com/questions/3502279
- https://stackoverflow.com/questions/54343137
英文:
I want to save an entity having one to many relationship in specific case where the nested entity throws unique constraint exception without rolling back the transaction.
I want to save the nested entity which is still unique and get an exception for duplicate entity.
Example: Entity A has list/set of entity B type containing X amount of duplicate records. While persisting in the database if the record exists already in database I want to know which record failed to persist from the list/set and the records to be successfully persisted.
Below are some reference for the same problem but no concrete solution.
- [https://stackoverflow.com/questions/32691128][1]
- [https://stackoverflow.com/questions/15731297][1]
- [https://stackoverflow.com/questions/3502279][1]
- [https://stackoverflow.com/questions/54343137][1]
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