<aop:config>

方法1：

<aop:pointcut expression="切入点表达式" id="">

<aop:advisor advice-ref="通知引用" pointcut-ref="切入点的引用">

?

方法2：

<aop:advisor advice-ref="通知引用" pointcut="切入点表达式">

<aop:config>

<aop:aspect ref="切面类">

<aop:pointcut>

<aop:before> 前置

<aop:afterReturning returning="第二个参数名称"> 后置

<aop:around> 环绕

<aop:afterThrowing throwing="第二。。。"> 抛出异常

<aop:after> 最终

ABCD四个操作 一个事务

Connection conn = null;

try{

//1 获得连接

conn = ...;

//2 开启事务

conn.setAutoCommit(false);

A

B

C

D

//3 提交事务

conn.commit();

} catche(){

//4 回滚事务

conn.rollback();

}?

需求：AB（必须），CD（可选）

Connection conn = null;

Savepoint savepoint = null; //保存点，记录操作的当前位置，之后可以回滚到指定的位置。（可以回滚一部分）

try{

//1 获得连接

conn = ...;

//2 开启事务

conn.setAutoCommit(false);

A

B

savepoint = conn.setSavepoint();

C

D

//3 提交事务

conn.commit();

} catche(){

if(savepoint != null){ //CD异常

// 回滚到CD之前

conn.rollback(savepoint);

// 提交AB

conn.commit();

} else{ //AB异常

// 回滚AB

conn.rollback();

}

}?

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‘);

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);

????}

?

}

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);

????}

?

}

????<!-- 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="1234"></property>

????</bean>

????

????<!-- 2 dao -->

????<bean id="accountDao" class="com.itheima.dao.impl.AccountDaoImpl">

????????<property name="dataSource" ref="dataSource"></property>

????</bean>

????<!-- 3 service -->

????<bean id="accountService" class="com.itheima.service.impl.AccountServiceImpl">

????????<property name="accountDao" ref="accountDao"></property>

????</bean>

????@Test

????public void demo01(){

????????String xmlPath = "applicationContext.xml";

????????ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPath);

????????AccountService accountService = (AccountService) applicationContext.getBean("accountService");

????????accountService.transfer("jack", "rose", 1000);

????}

????//需要spring注入模板

????private TransactionTemplate transactionTemplate;

????public void setTransactionTemplate(TransactionTemplate transactionTemplate) {

????????this.transactionTemplate = transactionTemplate;

????}

????@Override

????public void transfer(final String outer,final String inner,final Integer money) {

????????transactionTemplate.execute(new TransactionCallbackWithoutResult() {

????????????

????????????@Override

????????????protected void doInTransactionWithoutResult(TransactionStatus arg0) {

????????????????accountDao.out(outer, money);

????????????????//断电

//????????????????int i = 1/0;

????????????????accountDao.in(inner, money);

????????????}

????????});

?

????}

<!-- 3 service -->

????<bean id="accountService" class="com.itheima.service.impl.AccountServiceImpl">

????????<property name="accountDao" ref="accountDao"></property>

????????<property name="transactionTemplate" ref="transactionTemplate"></property>

????</bean>

????

????<!-- 4 创建模板 -->

????<bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">

????????<property name="transactionManager" ref="txManager"></property>

????</bean>

????

????<!-- 5 配置事务管理器 ,管理器需要事务，事务从Connection获得，连接从连接池DataSource获得 -->

????<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

????????<property name="dataSource" ref="dataSource"></property>

????</bean>

<!-- 4 service 代理对象

????????4.1 proxyInterfaces 接口

????????4.2 target 目标类

????????4.3 transactionManager 事务管理器

????????4.4 transactionAttributes 事务属性（事务详情）

????????????prop.key ：确定哪些方法使用当前事务配置

????????????prop.text:用于配置事务详情

????????????????格式：PROPAGATION,ISOLATION,readOnly,-Exception,+Exception

????????????????????传播行为????????隔离级别????是否只读????????异常回滚????????异常提交

????????????????例如：

????????????????????<prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop> 默认传播行为，和隔离级别

????????????????????<prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop> 只读

????????????????????<prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,+java.lang.ArithmeticException</prop> 有异常扔提交

????-->

????<bean id="proxyAccountService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

????????<property name="proxyInterfaces" value="com.itheima.service.AccountService"></property>

????????<property name="target" ref="accountService"></property>

????????<property name="transactionManager" ref="txManager"></property>

????????<property name="transactionAttributes">

????????????<props>

????????????????<prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop>

????????????</props>

????????</property>

????</bean>

?

?

????<!-- 5 事务管理器 -->

????<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

????????<property name="dataSource" ref="dataSource"></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(* com.itheima.service..*.*(..))"/>

????</aop:config>

<!-- 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"/>

@Transactional

public class AccountServiceImpl implements AccountService {

@Transactional(propagation=Propagation.REQUIRED , isolation = Isolation.DEFAULT)

public class AccountServiceImpl implements AccountService {

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations="classpath:applicationContext.xml")

public class TestApp {

????

????@Autowired //与junit整合，不需要在spring xml配置扫描

????private AccountService accountService;

????

????@Test

????public void demo01(){

//????????String xmlPath = "applicationContext.xml";

//????????ApplicationContext applicationContext = new ClassPathXmlApplicationContext(xmlPath);

//????????AccountService accountService = (AccountService) applicationContext.getBean("accountService");

????????accountService.transfer("jack", "rose", 1000);

????}

?

}

<!-- 确定配置文件位置 -->

<context-param>

????<param-name>contextConfigLocation</param-name>

????<param-value>classpath:applicationContext.xml</param-value>

</context-param>

?

<!-- 配置spring 监听器，加载xml配置文件 -->

<listener>

????<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

????// 从application作用域（ServletContext）获得spring容器

????????//方式1： 手动从作用域获取

????????ApplicationContext applicationContext =

????????????????(ApplicationContext) this.getServletContext().getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);

????????//方式2：通过工具获取

????????ApplicationContext apppApplicationContext2 =

????????????????WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());

????????

create table t_user(

id int primary key auto_increment,

username varchar(50),

password varchar(32),

age int

);

public class User {

????private Integer id;

????private String username;

????private String password;

????private Integer age;

<!DOCTYPE hibernate-mapping PUBLIC

"-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

????<class name="com.itheima.domain.User" table="t_user">

????????<id name="id">

????????????<generator class="native"></generator>

????????</id>

????????<property name="username"></property>

????????<property name="password"></property>

????????<property name="age"></property>

????</class>

?

</hibernate-mapping>

public class UserDaoImpl implements UserDao {

????

????//需要spring注入模板

????private HibernateTemplate hibernateTemplate;

????public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {

????????this.hibernateTemplate = hibernateTemplate;

????}

?

????@Override

????public void save(User user) {

????????this.hibernateTemplate.save(user);

????}

?

}

?

public class UserServiceImpl implements UserService {

?

????private UserDao userDao;

????public void setUserDao(UserDao userDao) {

????????this.userDao = userDao;

????}

????@Override

????public void register(User user) {

????????userDao.save(user);

????}

?

}

<session-factory>

????????<!-- 1基本4项 -->

????????<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

????????<property name="hibernate.connection.url">jdbc:mysql:///ee19_spring_day03</property>

????????<property name="hibernate.connection.username">root</property>

????????<property name="hibernate.connection.password">1234</property>

????????

????????<!-- 2 配置方言 -->

????????<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

????????

????????<!-- 3 sql语句 -->

????????<property name="hibernate.show_sql">true</property>

????????<property name="hibernate.format_sql">true</property>

????????

????????<!-- 4 自动生成表(一般没用) -->

????????<property name="hibernate.hbm2ddl.auto">update</property>

????????

????????<!-- 5本地线程绑定 -->

????????<property name="hibernate.current_session_context_class">thread</property>

????????

????????<!-- 导入映射文件 -->

????????<mapping resource="com/itheima/domain/User.hbm.xml"/>

????

????</session-factory>

<?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:aop="http://www.springframework.org/schema/aop"

xmlns:tx="http://www.springframework.org/schema/tx"

xmlns:context="http://www.springframework.org/schema/context"

xsi:schemaLocation="http://www.springframework.org/schema/beans

???????????????????? http://www.springframework.org/schema/beans/spring-beans.xsd

???????????????????? http://www.springframework.org/schema/tx

???????????????????? http://www.springframework.org/schema/tx/spring-tx.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">

<!-- 1 加载hibenrate.cfg.xml 获得SessionFactory

????????* configLocation确定配置文件位置

????-->

????<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

????????<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>

????</bean>

????

????<!-- 2创建模板

????????* 底层使用session，session 由sessionFactory获得

????-->

????<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">

????????<property name="sessionFactory" ref="sessionFactory"></property>

????</bean>

<!-- 3 dao -->

????<bean id="userDao" class="com.itheima.dao.impl.UserDaoImpl">

????????<property name="hibernateTemplate" ref="hibernateTemplate"></property>

????</bean>

????

????<!-- 4 service -->

????<bean id="userService" class="com.itheima.service.impl.UserServiceImpl">

????????<property name="userDao" ref="userDao"></property>

????</bean>

<!-- 5 事务管理 -->

????<!-- 5.1 事务管理器 ：HibernateTransactionManager -->

????<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager" >

????????<property name="sessionFactory" ref="sessionFactory"></property>

????</bean>

????<!-- 5.2 事务详情 ，给ABC进行具体事务设置 -->

????<tx:advice id="txAdvice" transaction-manager="txManager">

????????<tx:attributes>

????????????<tx:method name="register"/>

????????</tx:attributes>

????</tx:advice>

????<!-- 5.3 AOP编程，ABCD 筛选 ＡＢＣ -->

????<aop:config>

????????<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.itheima.service..*.*(..))"/>

????</aop:config>

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations="classpath:applicationContext.xml")

public class TestApp {

????

????@Autowired

????private UserService userService;

????

????@Test

????public void demo01(){

????????User user = new User();

????????user.setUsername("jack");

????????user.setPassword("1234");

????????user.setAge(18);

????????

????????userService.register(user);

????}

}

<!-- 1.1加载properties文件 -->

????<!-- 1.2 配置数据源 -->

????<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

????????<property name="driverClass" value="com.mysql.jdbc.Driver"></property>

????????<property name="jdbcUrl" value="jdbc:mysql:///ee19_spring_day03"></property>

????????<property name="user" value="root"></property>

????????<property name="password" value="1234"></property>

????</bean>

????

????<!-- 1.3配置 LocalSessionFactoryBean，获得SessionFactory

????????* configLocation确定配置文件位置

????????????<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>

????????1)dataSource 数据源

????????2)hibernateProperties hibernate其他配置项

????????3) 导入映射文件

????????????mappingLocations ，确定映射文件位置，需要"classpath:" ,支持通配符 【】

????????????????<property name="mappingLocations" value="classpath:com/itheima/domain/User.hbm.xml"></property>

????????????????<property name="mappingLocations" value="classpath:com/itheima/domain/*.hbm.xml"></property>

????????????mappingResources ，加载执行映射文件，从src下开始 。不支持通配符*

????????????????<property name="mappingResources" value="com/itheima/domain/User.hbm.xml"></property>

????????????mappingDirectoryLocations ，加载指定目录下的，所有配置文件

????????????????<property name="mappingDirectoryLocations" value="classpath:com/itheima/domain/"></property>

????????????mappingJarLocations ， 从jar包中获得映射文件

????-->

????<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

????????<property name="dataSource" ref="dataSource"></property>

????????<property name="hibernateProperties">

????????????<props>

????????????????<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>

????????????????<prop key="hibernate.show_sql">true</prop>

????????????????<prop key="hibernate.format_sql">true</prop>

????????????????<prop key="hibernate.hbm2ddl.auto">update</prop>

????????????????<prop key="hibernate.current_session_context_class">thread</prop>

????????????</props>

????????</property>

????????<property name="mappingLocations" value="classpath:com/itheima/domain/*.hbm.xml"></property>

????</bean>

// 底层需要SessionFactory，自动创建HibernateTemplate模板

public class UserDaoImpl extends HibernateDaoSupport implements UserDao {

?

????@Override

????public void save(User user) {

????????this.getHibernateTemplate().save(user);

????}

?

}

????<!-- 3 dao -->

????<bean id="userDao" class="com.itheima.dao.impl.UserDaoImpl">

????????<property name="sessionFactory" ref="sessionFactory"></property>

????</bean>

public class UserAction extends ActionSupport implements ModelDriven<User> {

?

????//1 封装数据

????private User user = new User();

?

????@Override

????public User getModel() {

????????return user;

????}

????

????//2 service

????private UserService userService;

????public void setUserService(UserService userService) {

????????this.userService = userService;

????}

/**

???? * 注册

???? * @return

???? */

????public String register(){

????????userService.register(user);

????????return "success";

????}

<!-- 6 配置action -->

????<bean id="userAction" class="com.itheima.web.action.UserAction" scope="prototype">

????????<property name="userService" ref="userService"></property>

????</bean>

<struts>

????<!-- 开发模式 -->

<constant name="struts.devMode" value="true" />

?

<package name="default" namespace="/" extends="struts-default">

????<!-- 底层自动从spring容器中通过名称获得内容， getBean("userAction") -->

????<action name="userAction_*" class="userAction" method="{1}">

????????<result name="success">/messag.jsp</result>

????</action>

</package>

</struts>

<form action="${pageContext.request.contextPath}/userAction_register" method="post">

????????用户名：<input type="text" name="username"/> <br/>

????????密码：<input type="password" name="password"/> <br/>

????????年龄：<input type="text" name="age"/> <br/>

????????<input type="submit" />

????</form>

<!-- 1 确定spring xml位置 -->

<context-param>

????<param-name>contextConfigLocation</param-name>

????<param-value>classpath:applicationContext.xml</param-value>

</context-param>

<!-- 2 spring监听器 -->

<listener>

????<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<!-- 3 struts 前端控制器 -->

<filter>

????<filter-name>struts2</filter-name>

????<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

</filter>

<filter-mapping>

????<filter-name>struts2</filter-name>

????<url-pattern>/*</url-pattern>

</filter-mapping>

<package name="default" namespace="/" extends="struts-default">

????<!-- 底层自动从spring容器中通过名称获得内容， getBean("userAction") -->

????<action name="userAction_*" class="com.itheima.web.action.UserAction" method="{1}">

????????<result name="success">/messag.jsp</result>

????</action>

</package>