出现‘transactionManager‘ while setting bean property ‘transactionManager‘错误 可以参考下

在学习Spring中编写XMl事务出现这个问题可以做一下参考’transactionManager’ while setting bean property ‘transactionManager’

警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService' defined in file [D:\Codeworkstation\IDEAGuigu\Spring5\spring5_tedemo1\out\production\spring5_tedemo1\com\atgui\spring\service\UserService.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txadvice': Cannot resolve reference to bean 'transactionManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager' available

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService' defined in file [D:\Codeworkstation\IDEAGuigu\Spring5\spring5_tedemo1\out\production\spring5_tedemo1\com\atgui\spring\service\UserService.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txadvice': Cannot resolve reference to bean 'transactionManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager' available

XML配置事务的代码

 <!-- 创建事务管理器-->
    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--        注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--2 配置通知-->
    <tx:advice id="txadvice">
        <!--配置事务参数-->
        <tx:attributes>
            <!--指定哪种规则的方法上面添加事务-->
            <tx:method name="account" propagation="REQUIRED"/>
            <!--<tx:method name="account*"/>-->
        </tx:attributes>
    </tx:advice>

    <!--3 配置切入点和切面-->
    <aop:config>
        <!--配置切入点-->
        <aop:pointcut id="pt" expression="execution(* com.atgui.spring.service.UserService.*(..))"/>
        <!--配置切面-->
        <aop:advisor advice-ref="txadvice" pointcut-ref="pt"/>
    </aop:config>

服务层编写代码

@Service
//@Transactional
public class UserService {

    @Autowired
    private UserDao userDao;

    public void account(){

        //减少钱
        userDao.reducemo();
        int i=13/0;
        //增加钱
        userDao.addmo();
    }
}

运行起来哟吼出现上面的错误

可以在XML：中修改 错误代码部分

 <!-- 创建事务管理器-->
    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--        注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>

把上面的id=“dataSourceTransactionManager” 进行修改 改为id=“transactionManager”\

就可以了

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--        注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>
``

这样就可以解决上面的问题  当然了 这只是我练习的时候出现问题 仅供参考`