【spring】AOP切面注解学习（二）

文接上篇：【spring】AOP切面注解学习（一）

AOP切面注解测试示例代码

示例代码 一

maven的pom文件导入

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>

AspectDemoController类

package com.yang.SpringTest.annotation.aopLearn.controller;

import org.springframework.stereotype.Controller;

/**
 * <p>AspectDemoController类</p>
 *
 * @author By: chengxuyuanshitang
 * Package com.yang.SpringTest.annotation.aopLearn
 * Ceate Time 2024-04-13 16:28
 */
@Controller
public class AspectDemoController {

    public void demo () {
        System.out.println ("-------- Aspect Test... -----------");
    }
}

AspectDemoLog类

package com.yang.SpringTest.annotation.aopLearn;

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

/**
 * <p>AspectDemoLog类</p>
 *
 * @author By: chengxuyuanshitang
 * Package com.yang.SpringTest.annotation.aopLearn
 * Ceate Time 2024-04-13 16:31
 */
@Aspect
@Component
public class AspectDemoLog {
    @Pointcut("execution(* com.yang.SpringTest.annotation.aopLearn.controller.*.*(..))")
    private void pointCut(){}

    @Before("pointCut()")
    public void beforeLog(){
        System.out.println(" ====== @Before Executing...");
    }

    @After("pointCut()")
    public void afterLog(){
        System.out.println(" ====== @After Executing...");
    }

    @AfterReturning("pointCut()")
    public void afterReturningLog(){
        System.out.println(" ====== @AfterReturning Executing...");
    }

    @AfterThrowing("pointCut()")
    public void afterThrowingLog(){
        System.out.println(" ====== @AfterThrowing Executing...");
    }

    @Around("pointCut()")
    public Object aroundLog(ProceedingJoinPoint pjp){

        Object resultValue = null;

        try{
            System.out.println(" ====== @Around  Executing Starting... ");
            Object[] args = pjp.getArgs();
            resultValue = pjp.proceed(args);
            System.out.println(" ====== @Around  Executing ending... ");
        }catch (Throwable t){
            System.out.println(" ====== @Around  Executing  Exception ... ");
        }finally {
            System.out.println(" ====== @Around  Executing  Finally... ");
        }
        return resultValue;
    }
}

AspectDemoConfig配置类

package com.yang.SpringTest.annotation.aopLearn;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;

/**
 * <p>AspectDemoConfig配置类</p>
 *
 * @author By: chengxuyuanshitang
 * Package com.yang.SpringTest.annotation.aopLearn
 * Ceate Time 2024-04-13 16:41
 */
@Configuration
@EnableAspectJAutoProxy
@ComponentScan(value = {"com.yang.SpringTest.annotation.aopLearn"})
public class AspectDemoConfig {
}

AspectDemoTest测试类

package com.yang.SpringTest.annotation.aopLearn;

import com.yang.SpringTest.annotation.aopLearn.controller.AspectDemoController;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

/**
 * <p>AspectDemoTest测试类</p>
 *
 * @author By: chengxuyuanshitang
 * Package com.yang.SpringTest.annotation.aopLearn
 * Ceate Time 2024-04-13 16:42
 */
public class AspectDemoTest {

    public static void main (String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext (AspectDemoConfig.class);
        AspectDemoController aspectDemoController = context.getBean (AspectDemoController.class);
        aspectDemoController.demo ();
        context.close ();
    }
}

运行结果

示例代码 二

测试异常在AspectDemoController类的demo方法添加异常代码。

 int num = 1 / 0;

运行结果