ora-00001

1.背景：T表F字段唯一索引，保存F字段重复的数据后台异常(附后)，不做处理MVC框架包装异常后，前台显示"Could not execute JDBC batch update; nested exception is org.hibernate.exception..."，报错信息不友好，故主动捕获后跑出友好业务相关信息"XXXXXXXXXX重复"。 2.框架：Hibernate+Spring+公司MVC。 3.异常详情： Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update at org.springframework.orm

I'm using Oracle provider for Entity framework (beta), and I'm facing a problem. Our tables have Id columns, which are set to be Identity in StoreGeneratedPattern. I thought that EF will automatically do "underlying works", such as create sequences, and get new identity for each record I add to the table. But when I run code to add a new record, such as: var comment = new Comment { ComplaintId = _currentComplaintId, Content = CommentContent.Text, CreatedBy = CurrentUser.UserID, CreatedDate = DateTime.Now }; context.Comments.AddObject(comment); context.SaveChanges(); an Exception still throws,

I need to check if an exception is caused by some database problem. I receive an Exception and check if its cause contains the "ORA" string and return that (something like "ORA-00001"). The problem here is that the exception I receive is nested inside other exceptions, so if I don't find out if it's an oracle exception, I have to check into the cause of that exception and so on. Is there a cleaner way to do this? Is there a way to know the first cause (the deep-nested exception) of a given exception? My current code looks like this: private String getErrorOracle(Throwable e){ final String