1.spring事务不会回滚，网上的方法都试过了，没有效果。
2.配置如下：

1.spring.xml:

2.springmvc.xml

3.spring-hibernate.xml

4.controller

 @RequestMapping(value = "/Save" , method= RequestMethod.POST)
    public void departmentSave(Department department, HttpServletResponse response){
            departmentService.save(department);
            throw new RuntimeException("抛出异常");
    }

5.service

@Service
@Transactional
public class DepartmentServiceImpl extends BaseServiceImpl implements DepartmentService {
    
    @Autowired
    private DepartmentDao deptDao;

    ......

    public void save(Department entity) {
        deptDao.save(entity);
    }
}

6.baseDao

public class BaseDaoImpl implements BaseDao {

    private SessionFactory sessionFactory;
    protected Class entityClass;

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    @Resource
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    public Session getCurrentSession() {
        return this.sessionFactory.getCurrentSession();
    }

    @SuppressWarnings("rawtypes")
    protected Class getEntityClass() {
        if (entityClass == null) {
            entityClass = (Class) ((ParameterizedType) getClass()
                    .getGenericSuperclass()).getActualTypeArguments()[0];
        }
        return entityClass;
    }

    @Transactional
    public Serializable save(T entity) {
        return this.getCurrentSession().save(entity);

    }
    ......
}

目录结构：

求大神帮忙看看，调了一天了，感激不尽。