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.println("前置通知"); } //后置通知 public void myaftereturning(Object obj){ System.out.println("后置通知"); } //环绕通知 public void myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable { System.out.println("环绕通知11"); Object proceed = proceedingJoinPoint.proceed(); System.out.println("环绕通知11"); } //最终通知 public void myafter(){ System.out.println("最终通知"); } //异常通知 public void myafterThrowing(Throwable e){ System.out.println("异常通知"); System.out.println(e.getMessage()); } }
目标类
public class UserServiceImpl implements UserService { public void eat(){ int i = 1 / 0; System.out.println("吃饭"); } }
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
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.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"> <!--配置userService 将UserServiceImpl放入SpringIoc容器--> <bean id = "userService" class = "com.czxy.demo04.service.impl.UserServiceImpl"></bean> <!--配置切面类--> <bean id = "myAspect" class="com.czxy.demo04.aspect.MyAspect"></bean> <!--配置切面--> <aop:config> <aop:aspect ref = "myAspect"> <!--切入点--> <aop:pointcut id = "myPointcut" expression = "execution(* com.czxy.demo04.service.impl.UserServiceImpl.*(..))"></aop:pointcut> <aop:before method = "mybefore" pointcut-ref = "myPointcut"></aop:before> <aop:after-returning method="myaftereturning" pointcut-ref="myPointcut" returning="obj"></aop:after-returning> <aop:around method="myAround" pointcut-ref="myPointcut"></aop:around> <aop:after method="myafter" pointcut-ref="myPointcut"></aop:after> <aop:after-throwing method="myafterThrowing" pointcut-ref="myPointcut" throwing="e"></aop:after-throwing> </aop:aspect> </aop:config> </beans>
测试类
@RunWith(SpringRunner.class) @ContextConfiguration(locations = {"classpath:demo04.xml"}) public class TestA { @Resource(name = "userService") private UserService userService; @Test public void test01(){ userService.eat(); } }
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：
@Entity(name = "account") public class Account { @Id private Integer id; private String name; private Float money;
mapper：
public interface AccountMapper extends Mapper<Account> { }
转账类：
public class AccountServiceImpl implements AccountService { private AccountMapper accountMapper; public void setAccountMapper(AccountMapper accountMapper) { this.accountMapper = accountMapper; } public void change(Integer outId, Integer inId, Float money) { Account outAccount = accountMapper.selectByPrimaryKey(outId); outAccount.setMoney(outAccount.getMoney() - money); accountMapper.updateByPrimaryKey(outAccount); int i = 1 / 0; Account inAccount = accountMapper.selectByPrimaryKey(inId); inAccount.setMoney(inAccount.getMoney() + money); accountMapper.updateByPrimaryKey(inAccount); } }
测试类：
@RunWith(SpringRunner.class) @ContextConfiguration(locations = "classpath:demo05.xml") public class TestA { @Resource(name = "accountService") private AccountService accountService; @Test public void testDemo(){ accountService.change(1,2,3f); System.out.println("转账成功"); } }
xml配置类：
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.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"> <!-- 1.1 指定配置文件的位置--> <context:property-placeholder location="classpath:db.properties"/> <!-- 1.2 配置数据源 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="driverClassName" value="${jdbc.driver}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> <!-- 配置初始化大小、最小、最大连连接数量 --> <property name="initialSize" value="5"/> <property name="minIdle" value="10"/> <property name="maxActive" value="20"/> </bean> <!-- 2.1 sessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="typeAliasesPackage" value="com.czxy.demo05.domain" /> <property name="configuration"> <bean class="org.apache.ibatis.session.Configuration"> <property name="mapUnderscoreToCamelCase" value="true" /> </bean> </property> <property name="plugins"> <array> <bean class="com.github.pagehelper.PageHelper"> <property name="properties"> <props> <prop key="dialect">mysql</prop> <prop key="rowBoundsWithCount">true</prop> </props> </property> </bean> </array> </property> </bean> <!-- 2.2 扫描Dao的包 --> <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer"> <!--指定会话工厂 --> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 指定 mybatis 接口所在的包 --> <property name="basePackage" value="com.czxy.demo05.mapper"/> </bean> <!-- 3 配置service --> <bean id="accountService" class="com.czxy.demo05.service.impl.AccountServiceImpl"> <property name="accountMapper" ref="accountMapper" /> </bean> <!-- 4 配置事务 --> <!-- 4.1 定义事务管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!-- 4.2 配置事务属性 --> <tx:advice id="txAdvice" transaction-manager="transactionManager" > <tx:attributes> <tx:method name="change" propagation="REQUIRED"/> <tx:method name="*" read-only="true" /> </tx:attributes> </tx:advice> <!-- 4.3 配置事务切入点 --> <aop:config> <aop:pointcut id="txPointCut" expression="execution(* com.czxy.demo05.service..*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut" /> </aop:config> </beans>
