qq931399960的专栏

一、org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1    原因：这个异常是由于主键设置为自增长，而在我们插入记录的时候设置了ID的值导致的。    解决方式：          

异常信息如下：org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.MANUAL):Turn your Session into FlushMode.COMMIT/AUTO or remove 'rea

一、数据库create table if not exists t_student(student_id int primary key not null auto_increment,student_name varchar(30),student_age int ,student_address varchar(100),student_qq varchar(20)) engi