1 jar:

aopalliance-1.0.0.jar

aspectjweaver-1.6.8.jar

commons-logging-1.2.jar

spring-aop-4.3.3.RELEASE.jar

spring-aspects-4.3.3.RELEASE.jar

spring-beans-4.3.3.RELEASE.jar

spring-context-4.3.3.RELEASE.jar

spring-core-4.3.3.RELEASE.jar

spring-expression-4.3.3.RELEASE.jar

2 在配置文件中加入aop命名空间 基于注解的方式

3 

 

package com.sgcc.aop.impl;public interface ArithmeticCalculator {    public int add(int i,int j);        public int sub(int i,int j);        public int mul(int i,int j);        public int div(int i,int j);}

package com.sgcc.aop.impl;import org.springframework.stereotype.Component;@Componentpublic class ArithmeticCalculatorImpl implements ArithmeticCalculator{    @Override    public int add(int i, int j) {        // TODO Auto-generated method stub        int result = i + j;        return result;    }    @Override    public int sub(int i, int j) {        // TODO Auto-generated method stub        int result = i - j;        return result;    }    @Override    public int mul(int i, int j) {        // TODO Auto-generated method stub        int result = i * j;        return result;    }    @Override    public int div(int i, int j) {        // TODO Auto-generated method stub        int result = i / j;        return result;    }}

package com.sgcc.aop.impl;import java.util.Arrays;import java.util.List;import org.aspectj.lang.JoinPoint;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;import org.springframework.stereotype.Component;//把这个类声明为一个切面，把该类放入到IOC容器中，再声明一个切面@Component@Aspectpublic class LoggingAspect {    //声明该方法是一个前置通知：在目标方法开始之前执行    @Before("execution( * com.sgcc.aop.impl.*.*(int , int ))")    public void beforeMethod(JoinPoint joinPoint){        String methodName = joinPoint.getSignature().getName();        List

package com.sgcc.aop.impl;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Main {    public static void main(String[] args) {        ApplicationContext ctx = new ClassPathXmlApplicationContext("appliicationContext.xml");                ArithmeticCalculator arithmeticCalculator = ctx.getBean(ArithmeticCalculator.class);                int result = arithmeticCalculator.add(3, 6);        System.out.println("result:"+result);        result = arithmeticCalculator.div(5, 5);        System.out.println("result:"+result);    }}