Spring学习-day11

package com.atguigu.spring.aop.impl;

public interface ArithmeticCalculator {
    //加减乘除
    int add(int i, int j);
    int sub(int i, int j);

    int mul(int i, int j);
    int div(int i, int j);
}

package com.atguigu.spring.aop.impl;

import org.springframework.stereotype.Component;

@Component
public class ArithmeticCalculatorImpl implements ArithmeticCalculator {

    @Override
    public int add(int i, int j) {

        int result = i + j;
        return result;
    }

    @Override
    public int sub(int i, int j) {

        int result = i - j;
        return result;
    }

    @Override
    public int mul(int i, int j) {

        int result = i * j;
        return result;
    }

    @Override
    public int div(int i, int j) {

        int result = i / j;
        return result;
    }

}

package com.atguigu.spring.aop.impl;
import java.util.Arrays;
import java.util.List;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
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: 需要把这个类放入到 IOC 容器中, 在声明为一个切面
@Aspect
@Component
public class LoggingAspect {
    //声明该方法是一个前置通知: 在目标方法开始之前开始执行
    @Before("execution(public int com.atguigu.spring.aop.impl.ArithmeticCalculatorImpl.*(int, int))")
    public void beforeMethod(JoinPoint joinPoint) {

        String methodName = joinPoint.getSignature().getName();
        List