Spring事务管理详解-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_29951983/article/details/87895469

文章目录

Spring XML方式进行事务管理
Spring 注解方式进行事务管理

Spring XML方式进行事务管理

jar包

sql语句

create database ee19_spring_day03;
use ee19_spring_day03;
create table account(
  id int primary key auto_increment,
  username varchar(50),
  money int
);
insert into account(username,money) values('jack','10000');
insert into account(username,money) values('rose','10000');

工程目录

在这里插入图片描述

配置文件

applicationContext.xml

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       					   http://www.springframework.org/schema/beans/spring-beans.xsd
       					   http://www.springframework.org/schema/aop
       					   http://www.springframework.org/schema/aop/spring-aop.xsd
       					   http://www.springframework.org/schema/context
       					   http://www.springframework.org/schema/context/spring-context.xsd
       					   http://www.springframework.org/schema/tx
       					   http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 1 datasource -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ee19_spring_day03"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123"></property>
    </bean>

    <!-- 2 dao  -->
    <bean id="accountDao" class="dao.impl.AccountDaoImpl">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 3 service -->
    <bean id="accountService" class="server.impl.AccountServiceImpl">
        <property name="accountDao" ref="accountDao"></property>
    </bean>


    <!-- 4 事务管理 -->
    <!-- 4.1 事务管理器 -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 4.2 事务详情（事务通知）  ， 在aop筛选基础上，对ABC三个确定使用什么样的事务。例如：AC读写、B只读 等
        <tx:attributes> 用于配置事务详情（属性属性）
            <tx:method name=""/> 详情具体配置
                propagation 传播行为 ， REQUIRED：必须；REQUIRES_NEW:必须是新的
                isolation 隔离级别
    -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="transfer" propagation="REQUIRED" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>
    <!-- 4.3 AOP编程，目标类有ABCD（4个连接点），切入点表达式 确定增强的连接器，从而获得切入点：ABC -->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* server..*.*(..))"/>
    </aop:config>

</beans>

代码

package dao;

public interface AccountDao {
    /**
     * 汇款
     * @param outer
     * @param money
     */
    public void out(String outer , Integer money);

    /**
     * 收款
     * @param inner
     * @param money
     */
    public void in(String inner , Integer money);

}

package dao.impl;

import dao.AccountDao;
import org.springframework.jdbc.core.support.JdbcDaoSupport;


public class AccountDaoImpl extends JdbcDaoSupport implements AccountDao {

    @Override
    public void out(String outer, Integer money) {
        this.getJdbcTemplate().update("update account set money = money - ? where username = ?", money,outer);
    }

    @Override
    public void in(String inner, Integer money) {
        this.getJdbcTemplate().update("update account set money = money + ? where username = ?", money,inner);
    }

}

package server;

public interface AccountService {

    /**
     * 转账
     * @param outer
     * @param inner
     * @param money
     */
    public void transfer(String outer ,String inner ,Integer money);

}

package server.impl;


import dao.AccountDao;
import server.AccountService;

public class AccountServiceImpl implements AccountService {

    private AccountDao accountDao;
    public void setAccountDao(AccountDao accountDao) {
        this.accountDao = accountDao;
    }
    @Override
    public void transfer(String outer, String inner, Integer money) {
        accountDao.out(outer, money);
        //断电
        int i = 1/0;
        accountDao.in(inner, money);
    }

}

测试文件

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import server.AccountService;


public class TestApp {

    @Test
    public void demo01(){
        String xmlPath = "resource/applicationContext";
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPath);
        AccountService accountService =  (AccountService) applicationContext.getBean("accountService");
        accountService.transfer("jack", "rose", 1000);
    }

}

结果展示

Spring 注解方式进行事务管理

jar

sql语句

create database ee19_spring_day03;
use ee19_spring_day03;
create table account(
  id int primary key auto_increment,
  username varchar(50),
  money int
);
insert into account(username,money) values('jack','10000');
insert into account(username,money) values('rose','10000');

工程目录

在这里插入图片描述

配置文件

applicationContext.xml

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       					   http://www.springframework.org/schema/beans/spring-beans.xsd
       					   http://www.springframework.org/schema/aop
       					   http://www.springframework.org/schema/aop/spring-aop.xsd
       					   http://www.springframework.org/schema/context
       					   http://www.springframework.org/schema/context/spring-context.xsd
       					   http://www.springframework.org/schema/tx
       					   http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 1 datasource -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ee19_spring_day03"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123"></property>
    </bean>

    <!-- 2 dao  -->
    <bean id="accountDao" class="dao.impl.AccountDaoImpl">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 3 service -->
    <bean id="accountService" class="server.impl.AccountServiceImpl">
        <property name="accountDao" ref="accountDao"></property>
    </bean>


    <!-- 4 事务管理 -->
    <!-- 4.1 事务管理器 -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 4.2 将管理器交予spring
        * transaction-manager 配置事务管理器
        * proxy-target-class
            true ： 底层强制使用cglib 代理
    -->
    <tx:annotation-driven transaction-manager="txManager"/>
</beans>

代码

package dao;

public interface AccountDao {
    /**
     * 汇款
     * @param outer
     * @param money
     */
    public void out(String outer , Integer money);

    /**
     * 收款
     * @param inner
     * @param money
     */
    public void in(String inner , Integer money);

}

package dao.impl;

import dao.AccountDao;
import org.springframework.jdbc.core.support.JdbcDaoSupport;


public class AccountDaoImpl extends JdbcDaoSupport implements AccountDao {

    @Override
    public void out(String outer, Integer money) {
        this.getJdbcTemplate().update("update account set money = money - ? where username = ?", money,outer);
    }

    @Override
    public void in(String inner, Integer money) {
        this.getJdbcTemplate().update("update account set money = money + ? where username = ?", money,inner);
    }

}

package server;

public interface AccountService {

    /**
     * 转账
     * @param outer
     * @param inner
     * @param money
     */
    public void transfer(String outer ,String inner ,Integer money);

}

package server.impl;


import dao.AccountDao;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import server.AccountService;


@Transactional(propagation=Propagation.REQUIRED , isolation = Isolation.DEFAULT)
public class AccountServiceImpl implements AccountService {

    private AccountDao accountDao;
    public void setAccountDao(AccountDao accountDao) {
        this.accountDao = accountDao;
    }
    @Override

    public void transfer(String outer, String inner, Integer money) {
        accountDao.out(outer, money);
        //断电
//        int i = 1/0;
        accountDao.in(inner, money);
    }

}

测试文件

public class TestApp {

    @Test
    public void demo01(){
        String xmlPath = "resource/applicationContext";
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPath);
        AccountService accountService =  (AccountService) applicationContext.getBean("accountService");
        accountService.transfer("jack", "rose", 1000);
    }

}