Spring之XML 配置AOP 事务管理
【摘要】
目录
XML中配置AOP
XML中配置事务管理
XML中配置AOP
切面类 正常写通知 不用加注解
public class MyAspect { //前置通知 public void mybefore(){ System.out.pri...
目录
XML中配置AOP
切面类 正常写通知 不用加注解
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public class MyAspect {
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//前置通知
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public void mybefore(){
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System.out.println("前置通知");
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}
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//后置通知
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public void myaftereturning(Object obj){
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System.out.println("后置通知");
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}
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//环绕通知
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public void myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
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System.out.println("环绕通知11");
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Object proceed = proceedingJoinPoint.proceed();
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System.out.println("环绕通知11");
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}
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//最终通知
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public void myafter(){
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System.out.println("最终通知");
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}
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//异常通知
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public void myafterThrowing(Throwable e){
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System.out.println("异常通知");
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System.out.println(e.getMessage());
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}
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}
目标类
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public class UserServiceImpl implements UserService {
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public void eat(){
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int i = 1 / 0;
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System.out.println("吃饭");
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}
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}
xml：
步骤：
1.配置UserServiceImpl 将UserServcieImpl放入Spring容器
2.配置切面类
3.配置切面 切入点 通知
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:p="http://www.springframework.org/schema/p"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:aop="http://www.springframework.org/schema/aop"
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xmlns:mvc="http://www.springframework.org/schema/mvc"
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xmlns:tx="http://www.springframework.org/schema/tx"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/mvc
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http://www.springframework.org/schema/mvc/spring-mvc.xsd
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http://www.springframework.org/schema/aop
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http://www.springframework.org/schema/aop/spring-aop.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context.xsd
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http://www.springframework.org/schema/tx
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http://www.springframework.org/schema/tx/spring-tx.xsd">
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<!--配置userService 将UserServiceImpl放入SpringIoc容器-->
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<bean id = "userService" class = "com.czxy.demo04.service.impl.UserServiceImpl"></bean>
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<!--配置切面类-->
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<bean id = "myAspect" class="com.czxy.demo04.aspect.MyAspect"></bean>
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<!--配置切面-->
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<aop:config>
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<aop:aspect ref = "myAspect">
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<!--切入点-->
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<aop:pointcut id = "myPointcut" expression = "execution(* com.czxy.demo04.service.impl.UserServiceImpl.*(..))"></aop:pointcut>
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<aop:before method = "mybefore" pointcut-ref = "myPointcut"></aop:before>
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<aop:after-returning method="myaftereturning" pointcut-ref="myPointcut" returning="obj"></aop:after-returning>
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<aop:around method="myAround" pointcut-ref="myPointcut"></aop:around>
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<aop:after method="myafter" pointcut-ref="myPointcut"></aop:after>
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<aop:after-throwing method="myafterThrowing" pointcut-ref="myPointcut" throwing="e"></aop:after-throwing>
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</aop:aspect>
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</aop:config>
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</beans>
测试类
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@RunWith(SpringRunner.class)
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@ContextConfiguration(locations = {"classpath:demo04.xml"})
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public class TestA {
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@Resource(name = "userService")
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private UserService userService;
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@Test
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public void test01(){
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userService.eat();
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}
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}
XML中配置事务管理
转账 当出现错误的时候 转账失败 并且余额不变
xml配置类步骤：
1.加载属性配置文件
2.配置连接池
3.配置sessionFactory
4.扫描dao的包
5.配置service
6.定义事务管理器
7.配置事务属性
8.配置事务切入点
domain：
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@Entity(name = "account")
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public class Account {
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@Id
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private Integer id;
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private String name;
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private Float money;
mapper：
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public interface AccountMapper extends Mapper<Account> {
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}
转账类：
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public class AccountServiceImpl implements AccountService {
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private AccountMapper accountMapper;
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public void setAccountMapper(AccountMapper accountMapper) {
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this.accountMapper = accountMapper;
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}
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public void change(Integer outId, Integer inId, Float money) {
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Account outAccount = accountMapper.selectByPrimaryKey(outId);
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outAccount.setMoney(outAccount.getMoney() - money);
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accountMapper.updateByPrimaryKey(outAccount);
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int i = 1 / 0;
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Account inAccount = accountMapper.selectByPrimaryKey(inId);
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inAccount.setMoney(inAccount.getMoney() + money);
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accountMapper.updateByPrimaryKey(inAccount);
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}
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}
测试类：
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@RunWith(SpringRunner.class)
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@ContextConfiguration(locations = "classpath:demo05.xml")
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public class TestA {
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@Resource(name = "accountService")
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private AccountService accountService;
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@Test
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public void testDemo(){
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accountService.change(1,2,3f);
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System.out.println("转账成功");
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}
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}
xml配置类：
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:p="http://www.springframework.org/schema/p"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:aop="http://www.springframework.org/schema/aop"
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xmlns:mvc="http://www.springframework.org/schema/mvc"
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xmlns:tx="http://www.springframework.org/schema/tx"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/mvc
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http://www.springframework.org/schema/mvc/spring-mvc.xsd
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http://www.springframework.org/schema/aop
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http://www.springframework.org/schema/aop/spring-aop.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context.xsd
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http://www.springframework.org/schema/tx
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http://www.springframework.org/schema/tx/spring-tx.xsd">
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<!-- 1.1 指定配置文件的位置-->
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<context:property-placeholder location="classpath:db.properties"/>
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<!-- 1.2 配置数据源 -->
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<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
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<property name="driverClassName" value="${jdbc.driver}"/>
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<property name="url" value="${jdbc.url}"/>
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<property name="username" value="${jdbc.username}"/>
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<property name="password" value="${jdbc.password}"/>
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<!-- 配置初始化大小、最小、最大连连接数量 -->
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<property name="initialSize" value="5"/>
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<property name="minIdle" value="10"/>
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<property name="maxActive" value="20"/>
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</bean>
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<!-- 2.1 sessionFactory -->
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<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
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<property name="dataSource" ref="dataSource" />
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<property name="typeAliasesPackage" value="com.czxy.demo05.domain" />
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<property name="configuration">
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<bean class="org.apache.ibatis.session.Configuration">
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<property name="mapUnderscoreToCamelCase" value="true" />
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</bean>
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</property>
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<property name="plugins">
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<array>
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<bean class="com.github.pagehelper.PageHelper">
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<property name="properties">
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<props>
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<prop key="dialect">mysql</prop>
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<prop key="rowBoundsWithCount">true</prop>
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</props>
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</property>
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</bean>
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</array>
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</property>
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</bean>
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<!-- 2.2 扫描Dao的包 -->
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<bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
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<!--指定会话工厂 -->
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<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
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<!-- 指定 mybatis 接口所在的包 -->
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<property name="basePackage" value="com.czxy.demo05.mapper"/>
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</bean>
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<!-- 3 配置service -->
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<bean id="accountService" class="com.czxy.demo05.service.impl.AccountServiceImpl">
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<property name="accountMapper" ref="accountMapper" />
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</bean>
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<!-- 4 配置事务 -->
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<!-- 4.1 定义事务管理器-->
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<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
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<property name="dataSource" ref="dataSource"/>
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</bean>
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<!-- 4.2 配置事务属性 -->
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<tx:advice id="txAdvice" transaction-manager="transactionManager" >
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<tx:attributes>
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<tx:method name="change" propagation="REQUIRED"/>
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<tx:method name="*" read-only="true" />
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</tx:attributes>
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</tx:advice>
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<!-- 4.3 配置事务切入点 -->
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<aop:config>
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<aop:pointcut id="txPointCut" expression="execution(* com.czxy.demo05.service..*.*(..))"/>
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<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut" />
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</aop:config>
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</beans>
文章来源: blog.csdn.net，作者：陶然同学，版权归原作者所有，如需转载，请联系作者。
原文链接：blog.csdn.net/weixin_45481821/article/details/121763584
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