Java Spring框架AOP註解

一、導入Spring的xml文件

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.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">
        <!--配置Sping 要掃描的包-->
    <context:component-scan base-package="com"/>

<!--配置自動完成創建代理織入切面的工作-->
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>

</beans>

註解的使用

package com.utils;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;

@Component("logUtil")
@Aspect   //配置織入@Aspectj切面
public class ServiceInfo {
    @Pointcut("execution(* com.service.impl.*.*(..))")
    public void getcut(){}

    @Before("getcut()")
    public void before(){
        System.out.println("before");
    }
    @After("getcut()")
    public void after(){
        System.out.println("after");
    }
    @AfterThrowing("getcut()")
    public void error(){
        System.out.println("error");
    }
    @AfterReturning("getcut()")
    public void normal(){
        System.out.println("normal");
    }
  //  @Around("getcut()")  // 環繞寫法
    public void aroundPingLog(ProceedingJoinPoint joinPoint){
        Object rValue =null;
        try {
            Object [] args=joinPoint.getArgs();
            System.out.println("前·····");
            rValue=joinPoint.proceed(args);/*業務層，切入點方法*/
            System.out.println("正常後·····");
        } catch (Throwable throwable) {
            throwable.printStackTrace();
            System.out.println("異常後·····");

        }finally {
            System.out.println("結束·····");

        }
    }
}