今天更新数据时出现这个错误：

java.sql.SQLException: Connection is read-only. Queries leading to data modification are not allowed

原因是：我在service层设置了只读。@Transactional(readOnly = true)

而更新的方法没有把可读设置为FALSE。解决办法是在方法上加上readOnly=FALSE

注解如下：    @Transactional(readOnly = false, isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED)