使用spring aop实现日志记录功能

红太狼 2022-04-15 06:59 244阅读 0赞

在[https://blog.csdn.net/qq\_41534115/article/details/84329611][https_blog.csdn.net_qq_41534115_article_details_84329611]这一篇文章中，大家对spring已经有了一定的认识

那么接下来，我来讲解AOP的相关操作

在上一篇文章的基础上配置spring.xml文件

<bean id="log" class="com.jie.util.LogManager"></bean>
        
        <aop:config proxy-target-class="true">
            
            <aop:pointcut id="pt" expression="execution(* com.jie.service.impl.*.*(..))"></aop:pointcut>
            
            <aop:advisor advice-ref="log" pointcut-ref="pt"></aop:advisor>
        </aop:config>
    
    
        <bean id="myLog" class="com.jie.util.Log"></bean>
        <aop:config>
            
            <aop:pointcut id="pt1" expression="execution(* com.jie.dao.impl.*.*(..))"></aop:pointcut>
            
            <aop:aspect  ref="myLog">
                
                <aop:before method="before" pointcut-ref="pt1"></aop:before>
                
                <aop:after-returning method="after" pointcut-ref="pt1"></aop:after-returning>
                
                <aop:around method="around" pointcut-ref="pt1"></aop:around>
            </aop:aspect>
        </aop:config>

然后添加util包

LogManger类是使用的spring的切面

package com.jie.util;
    /**
     * 日至切面
     * */
    import org.springframework.aop.AfterReturningAdvice;
    import org.springframework.aop.MethodBeforeAdvice;
    
    import java.lang.reflect.Method;
    
    public class LogManager implements MethodBeforeAdvice, AfterReturningAdvice {
    
        @Override
        public void before(Method method, Object[] objects, Object o) throws Throwable {
            System.out.println(method.getName()+"方法执行前日志--------"+System.currentTimeMillis());
        }
    
        @Override
        public void afterReturning(Object o, Method method, Object[] objects, Object o1) throws Throwable {
            System.out.println(method.getName()+"方法执行后日志--------"+System.currentTimeMillis());
        }
    }

Log类，自定义切面

package com.jie.util;
    
    import org.aspectj.lang.ProceedingJoinPoint;
    
    public class Log {
        public void before(){
    
            System.out.println("这是方法之前执行的！");
        }
    
        public void after(){
    
            System.out.println("这是方法之后执行的！");
        }
    
        public void afterThrowing(){
            System.out.println("这是方法之后执行的异常日志！");
        }
    
        public void around(ProceedingJoinPoint joinPoint){
            System.out.println("这是方法之前执行的环绕通知！");
            try {
                joinPoint.proceed();
            }catch (Throwable throwable){
                throwable.printStackTrace();
            }
    
            System.out.println("这是方法之后执行的环绕通知！");
        }
    }

TestUser测试类

package com.jie;
    
    import com.jie.domain.User;
    import com.jie.service.UserService;
    import com.jie.service.impl.UserServiceImpl;
    import org.junit.Test;
    import org.springframework.beans.factory.BeanFactory;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import java.util.List;
    
    public class TestUser {
    
        @Test
        public void test1(){
            BeanFactory factory=new ClassPathXmlApplicationContext("/spring.xml");
            UserServiceImpl userService=(UserServiceImpl) factory.getBean("userService");
    //        UserService userService1=(UserService)factory.getBean("userService");
            userService.hello();
    //        userService1.hello();
    //        userService.hello(22);
    //        User user=(User)factory.getBean("user");
    //        userService.hello(user);
    //        List list  =  userService.getList();
    //        userService1.hello(list);
        }
    }

结果

![20181122212016134.png][]

[https_blog.csdn.net_qq_41534115_article_details_84329611]: https://blog.csdn.net/qq_41534115/article/details/84329611
[20181122212016134.png]: /images/20220415/95de6a4e5b354db0ad308ee9f88d8152.png