摘要：
今天做个项目是批量上传功能，上传文件的名称需要有顺序的排列下去，想做个事务避免序号出错。于是我按照平时的习惯写好方法进行测试，tomcat报错：net.sf.hibernate.TransactionException: Commit failed with SQL exception: : Can't call commit when autocommit=truenet.sf.hibernate.TransactionException: Rollback failed with SQL exception: : Can't call rollback when autoc 阅读全文