一、
問題:
t_user is not mapped
解決:
將
@Query("update t_user u set u.username = ?1 where u.id = ?2")
改成
@Query("update User u set u.username = ?1 where u.id = ?2")
二、
問題:
nested exception is javax.persistence.TransactionRequiredException: Executing an update/delete query
解決:
加上@Transactional註釋