Spring面向切面编程AOP基于注解所有通知类型-----Spring框架

桃扇骨 2024-03-24 18:21 43阅读 0赞

>     <?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"
>            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
>            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
>            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
>     
>         <context:component-scan base-package="com.powernode.spring6.service"></context:component-scan>
>     
>         <aop:aspectj-autoproxy proxy-target-class="true"/>
>     
>     </beans>
> 
>     <?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"
>            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
>            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
>            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
>     
>         <context:component-scan base-package="com.powernode.spring6.service"></context:component-scan>
>     
>         <aop:aspectj-autoproxy proxy-target-class="true"/>
>     
>     </beans>

>     package com.powernode.spring6.service;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class OrderService//目标类
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderService.class);
>         public void generate()//目标方法
>         {
>             logger.info("正在生成订单");
>             if(1 == 1)
>             {
>                 throw new RuntimeException("啊!我出异常了");
>             }
>         }
>     }
> 
>     package com.powernode.spring6.service;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class OrderService//目标类
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderService.class);
>         public void generate()//目标方法
>         {
>             logger.info("正在生成订单");
>             if(1 == 1)
>             {
>                 throw new RuntimeException("啊!我出异常了");
>             }
>         }
>     }

>     package com.powernode.spring6.service;
>     
>     import org.aspectj.lang.ProceedingJoinPoint;
>     import org.aspectj.lang.annotation.*;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Component;
>     
>     @Component
>     //切面类是需要使用@Aspect注解标注的,标注了就是一个切面
>     @Aspect
>     public class LogAspect //切面
>     {
>         private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);
>         //切面等于通知加上切点
>         //通知等于增强,就是说要编写的增强代码
>         //这里的Advice以方法的形式出现(因为方法里面写代码)
>         //Before注解只要标注,就是一个前置通知,内部写切点表达式
>         @Before("execution(* com.powernode.spring6.service..*(..))")
>         public void Before()
>         {
>             logger.info("我是一段前置通知");
>         }
>         //后置通知
>         @AfterReturning("execution(* com.powernode.spring6.service..*(..))")
>         public void AfterReturning()
>         {
>             logger.info("我是一段后置通知");
>         }
>         //环绕通知
>         @Around("execution(* com.powernode.spring6.service..*(..))")
>         public void Around(ProceedingJoinPoint joinPoint) throws Throwable {
>             //前面的代码
>             logger.info("前环绕通知");
>             //执行目标
>             joinPoint.proceed();//用来执行目标
>             //后面的代码
>             logger.info("后环绕通知");
>         }
>         //最终通知
>         //finally语句块中的通知
>         @After("execution(* com.powernode.spring6.service..*(..))")
>         public void After()
>         {
>             logger.info("最终通知");
>         }
>         //异常通知
>         @AfterThrowing("execution(* com.powernode.spring6.service..*(..))")
>         public void AfterThrowing()
>         {
>             logger.info("异常通知");
>         }
>     }
> 
>     package com.powernode.spring6.service;
>     
>     import org.aspectj.lang.ProceedingJoinPoint;
>     import org.aspectj.lang.annotation.*;
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Component;
>     
>     @Component
>     //切面类是需要使用@Aspect注解标注的,标注了就是一个切面
>     @Aspect
>     public class LogAspect //切面
>     {
>         private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);
>         //切面等于通知加上切点
>         //通知等于增强,就是说要编写的增强代码
>         //这里的Advice以方法的形式出现(因为方法里面写代码)
>         //Before注解只要标注,就是一个前置通知,内部写切点表达式
>         @Before("execution(* com.powernode.spring6.service..*(..))")
>         public void Before()
>         {
>             logger.info("我是一段前置通知");
>         }
>         //后置通知
>         @AfterReturning("execution(* com.powernode.spring6.service..*(..))")
>         public void AfterReturning()
>         {
>             logger.info("我是一段后置通知");
>         }
>         //环绕通知
>         @Around("execution(* com.powernode.spring6.service..*(..))")
>         public void Around(ProceedingJoinPoint joinPoint) throws Throwable {
>             //前面的代码
>             logger.info("前环绕通知");
>             //执行目标
>             joinPoint.proceed();//用来执行目标
>             //后面的代码
>             logger.info("后环绕通知");
>         }
>         //最终通知
>         //finally语句块中的通知
>         @After("execution(* com.powernode.spring6.service..*(..))")
>         public void After()
>         {
>             logger.info("最终通知");
>         }
>         //异常通知
>         @AfterThrowing("execution(* com.powernode.spring6.service..*(..))")
>         public void AfterThrowing()
>         {
>             logger.info("异常通知");
>         }
>     }

>     package com.powernode.spring6.service;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class UserService
>     {
>         private static final Logger logger = LoggerFactory.getLogger(UserService.class);
>         public void Login()
>         {
>             logger.info("系统正在进行Login");
>         }
>         public void Add()
>         {
>             logger.info("系统正在进行add");
>         }
>         public void LogOut()
>         {
>             logger.info("系统正在进行LogOut");
>         }
>         public void Delete()
>         {
>             logger.info("系统正在进行Delete");
>         }
>     }
> 
>     package com.powernode.spring6.service;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Service;
>     
>     @Service
>     public class UserService
>     {
>         private static final Logger logger = LoggerFactory.getLogger(UserService.class);
>         public void Login()
>         {
>             logger.info("系统正在进行Login");
>         }
>         public void Add()
>         {
>             logger.info("系统正在进行add");
>         }
>         public void LogOut()
>         {
>             logger.info("系统正在进行LogOut");
>         }
>         public void Delete()
>         {
>             logger.info("系统正在进行Delete");
>         }
>     }

>     package com.powernode.spring6.test;
>     
>     import com.powernode.spring6.service.OrderService;
>     import com.powernode.spring6.service.UserService;
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     public class SpringAOPTest
>     {
>         @Test
>         public void TestBefore()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
>     //        UserService userService = applicationContext.getBean("userService", UserService.class);
>     //        userService.Login();
>     //        userService.LogOut();
>             OrderService orderService = applicationContext.getBean("orderService", OrderService.class);
>             orderService.generate();
>         }
>     }
> 
>     package com.powernode.spring6.test;
>     
>     import com.powernode.spring6.service.OrderService;
>     import com.powernode.spring6.service.UserService;
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     public class SpringAOPTest
>     {
>         @Test
>         public void TestBefore()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
>     //        UserService userService = applicationContext.getBean("userService", UserService.class);
>     //        userService.Login();
>     //        userService.LogOut();
>             OrderService orderService = applicationContext.getBean("orderService", OrderService.class);
>             orderService.generate();
>         }
>     }