spring 事务操作 声明方式

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">    <bean id="dateSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>        <property name="url" value="jdbc:mysql://localhost:3306/kaoqin"></property>        <property name="username" value="root"></property>        <property name="password" value="1234"></property>    </bean>    <!--声明方式-->    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">        <property name="dataSource" ref="dateSource"></property>    </bean>    <bean id="userDao1" class="com.sanmao.dao.UserDao1">        <property name="jdbcTemplate" ref="jdbcTemplate"></property>    </bean> <bean id="userDao2" class="com.sanmao.dao.UserDao2">     <property name="jdbcTemplate" ref="jdbcTemplate"></property> </bean>    <!--=============================================-->    <!--声明方式配置多个类-->    <bean id="user1" parent="transactionProxy">        <property name="target" ref="userDao1"></property>    </bean>    <bean id="user2" parent="transactionProxy">        <property name="target" ref="userDao2"></property>    </bean>    <!--===================================================-->    <!--声明方式需要配置代理-->    <bean id="transactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">        <property name="transactionManager" ref="transactionManager"></property>        <!--目标 === 要管理的bean   要处理多个bean的时候，将不这样，而是把代理设置为父类        目标 bean 在子类中声明-->        <!--<property name="target" ref="userDao1"></property>-->        <!--事物的传播属性-->        <property name="transactionAttributes">            <props>                <!--有事物就调用事物，否则就新建一个事物-->                <prop key="add">PROPAGATION_REQUIRED</prop>                <prop key="update">PROPAGATION_REQUIRED</prop>            </props>        </property>    </bean>    </beans>

public class UserDao1 {    JdbcTemplate jdbcTemplate;    public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {        this.jdbcTemplate = jdbcTemplate;    }    public void add(){        jdbcTemplate.update("insert into  sanmao (name,pass)  VALUES ('u1','u1')");    }    public void update(){        jdbcTemplate.update("insert into  sanmao (name,pass)  VALUES ('2','2')");    }}

public class UserDao2 {    JdbcTemplate jdbcTemplate;    public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {        this.jdbcTemplate = jdbcTemplate;    }    public void add(){        jdbcTemplate.update("insert into  sanmao (name,pass)  VALUES ('u2','u2')");    }}

public class test {    public static void main(String[] args) {        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("spring-config.xml");        UserDao1 userDao=(UserDao1)applicationContext.getBean("userDao1");        userDao.add();        UserDao2 userDao2=(UserDao2)applicationContext.getBean("userDao2");        userDao2.add();    }}