spring xml和 注解事务的实现

1首先创建
Yinhang 自定义实体类

package com.bin.bean;

public class Yinhang {
    private String  pname;
    private  Integer money;


    public String getPname() {
        return pname;
    }

    public void setPname(String pname) {
        this.pname = pname;
    }

    public Integer getMoney() {
        return money;
    }

    public void setMoney(Integer money) {
        this.money = money;
    }
}

2 创建dao层 接口 提供i银行添加和减少方法

package com.bin.dao;

public interface yinghangdao {

    void  in(String pname,int money);
    void  out(String pname,int money);
}

2.1和接口实现类

package com.bin.dao.Imp;

import com.bin.dao.yinghangdao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

@Repository
public class yinghangImp implements yinghangdao {
    @Autowired
    private JdbcTemplate JdbcTemplate;
    @Override
    public void in(String pname, int money) {
JdbcTemplate.update("update yinhang set money=money+? where yname=?",money,pname);
    }

    @Override
    public void out(String pname, int money) {
        JdbcTemplate.update("update yinhang set money=money-? where yname=?",money,pname);
    }
}

3.service层接口

public interface yinghangservice {
    /**
     * 从 from 转给 to 多少钱
     * @param from
     * @param to
     * @param money
     */
    void transfer(String from,String to,int money);
}

service接口实现类

package com.bin.service;

import com.bin.bean.Yinhang;
import com.bin.dao.yinghangdao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class yinghangserviceImp implements yinghangservice {
    @Autowired
    private yinghangdao yinghangdao;

    @Override
    public void transfer(String from, String to, int money) {


        yinghangdao.out(from,money);
         // System.out.println(1/0);
        yinghangdao.in(to,money);

    }


}

xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">


    <!--=================注解配置aop====================-->
    <!--配置动态代理 ,支持aop的注解-->
    <aop:aspectj-autoproxy/>

    <!--开启注解扫描-->
    <context:component-scan base-package="com.bin"/>

    <!--读取jdbc配置文件-->
    <context:property-placeholder location="jdbc.properties"/>

    <!--c3p0设置配置信息-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>


    <!--配置jdbcTemplate模板 -->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"/>
    </bean>


    <!--==============xml事务管理 (优势,只写1次,永久生效)===============-->
    <!--1.配置事务管理器平台 (无论是xml还是注解都需这个配置)-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--2.配置事务通知 , id :事务通知的名称 ,随意给名-->
    <tx:advice id="myAdvice">
        <tx:attributes>
     
            <tx:method name="*"/>
        </tx:attributes>
    </tx:advice>

    <!--3.aop的配置-->
    <aop:config>
        <!--表达式 指定 事务作用于哪一层-->
       <aop:pointcut id="pointcut1" expression="execution(* com.bin.service.*.*(..))"/>

        <!--<aop:pointcut id="pointcut1" expression="execution(* cn.hp.dao.*.*(..))"/>-->
        <!--advisor 和 aspect都是切面 , 前者一般只配置1个 切入点-->
        <aop:advisor advice-ref="myAdvice" pointcut-ref="pointcut1"/>
    </aop:config>

</beans>