spring 当service中空指针异常，事务不回滚？
<!-- 配置事务特性 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="del*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="deploy*" propagation="REQUIRED" /> <tx:method name="submit*" propagation="REQUIRED" /> <tx:method name="get*" read-only="true" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="daoMethods" expression="execution(* net.hlj.kj.dao.*.*.*(..))" /> <!-- 定义了将采用何种拦截操作，这里引用到 txAdvice --> <aop:advisor advice-ref="txAdvice" pointcut-ref="daoMethods" /> </aop:config> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />action public void activeUser(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { long id = UtilTool.str2Long(request.getParameter("id")); TdUser tu = userService.getUserById(id); if (tu.getState() == 0) {// 判断是否激活 try { bouns(tu.getId(), tu.getSuperid(), 1); TdUser agent = userService.getUserById(tu.getAgentid()); agent.setMb(5d); userService.update(agent); //激活账户 userService.activeUser(id); //购买股票 userService.buyStock(tu); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } response.sendRedirect("doUser.do?method=getUserListByAgent"); }