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.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>
  
 

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