mybatis(六)--mybatis事物回滚

今天药忘吃喽~ 2022-04-23 03:38 224阅读 0赞

在使用springmvc+mybatis的过程中，发现spring中的配置如下：

spring-mybatis.xml中的配置如下:
    
        <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                <tx:method name="add*" propagation="REQUIRED" />
                <tx:method name="append*" propagation="REQUIRED" />
                <tx:method name="insert*" propagation="REQUIRED" />
                <tx:method name="save*" propagation="REQUIRED" />
                <tx:method name="update*" propagation="REQUIRED" />
                <tx:method name="modify*" propagation="REQUIRED" />
                <tx:method name="edit*" propagation="REQUIRED" />
                <tx:method name="delete*" propagation="REQUIRED" />
                <tx:method name="remove*" propagation="REQUIRED" />
                <tx:method name="repair" propagation="REQUIRED" />
                <tx:method name="delAndRepair" propagation="REQUIRED" />
                <tx:method name="get*" propagation="SUPPORTS" />
                <tx:method name="find*" propagation="SUPPORTS" />
                <tx:method name="load*" propagation="SUPPORTS" />
                <tx:method name="search*" propagation="SUPPORTS" />
                <tx:method name="datagrid*" propagation="SUPPORTS" />
     
                <tx:method name="*" propagation="SUPPORTS" />
            </tx:attributes>
        </tx:advice>
    
    springmvc.xml配置如下：
    
    
        <context:component-scan base-package="com.ms.controller" />
    
    <context:component-scan base-package="com.njzaizao"> 
            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" /> 
        </context:component-scan>

但是事实上 只是对controller类中进行了扫描 service层中并不能进行扫描，这样service层中就能自动开启事物了，但是在service层中不能使用try catch，若实在是要在service层中捕获到异常 则需要使用注解@Transactional   具体是示例如下：

@Transactional
        @ApiOperation("上移")
        @RequestMapping(value = "/upExamLib", method = RequestMethod.PUT)
        public Result upExamLib(@Valid @RequestBody HomeUpForm homeForm) {
            ExamLib examLib = examLibService.getExamLibById(homeForm.getId());
            ExamLib examLib1 = examLibService.getExamLibById(homeForm.getUid());
            if (null == examLib || null == examLib1) {
                return ResultUtil.sendErrorMessage("上移失败！");
            }
            boolean flag = examLibService.updateExamLibSort(examLib1.getId(), examLib.getSort());
            boolean flag1 = examLibService.updateExamLibSort(examLib.getId(), examLib1.getSort());
            if (flag && flag1) {
                return ResultUtil.sendSuccessMessage("上移成功！");
            } else {
                TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
                return ResultUtil.sendErrorMessage("上移失败！");
            }
        }