34.6、 Spring

package com.hhh.aspect.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;

public class MyAspect {
    
    public void myBefore(JoinPoint joinPoint){

//        joinPoint.getTarget(); 获取目标对象
//        joinPoint.getSignature().getName(); 获取目标方法名
//        joinPoint.getArgs(); 获取目标方法参数列表
//        joinPoint.getThis(); 获取代理对象
        System.out.println("Before..."+joinPoint.getSignature().getName());
    }

    
    public void myAfterReturning(JoinPoint joinPoint){
        System.out.println("After..."+joinPoint.getSignature());
    }

    
    public Object myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable{
        System.out.println("Around Before"+proceedingJoinPoint.getSignature().getName());
        Object obj = proceedingJoinPoint.proceed();
        System.out.println("Around After环绕通知"+proceedingJoinPoint);
        return obj;
    }

    
    public void myAfterThrowing(Exception e){
        System.out.println("Exception  "+e);
    }

    
    public void myAfter(){
        System.out.println("最终通知");
    }
}

 修改业务层：创建接口及实现类

 配置切面：

 测试：

package com.hhh.schema_based.aop;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.AfterReturningAdvice;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.ThrowsAdvice;

import java.lang.reflect.Method;

public class basedMyAspect implements MethodBeforeAdvice, AfterReturningAdvice, MethodInterceptor, ThrowsAdvice {
    
    @Override
    public Object invoke(MethodInvocation methodInvocation) throws Throwable {
        System.out.println("Around Before");
        Object obj = methodInvocation.proceed();
        System.out.println("Around After");
        return obj;
    }

    
    @Override
    public void afterReturning(Object o, Method method, Object[] objects, Object o1) throws Throwable {
        System.out.println("After...");
    }

    
    @Override
    public void before(Method method, Object[] objects, Object o) throws Throwable {
        System.out.println("Before....");
    }

    
    public void afterThrowing(Exception ex){
        System.out.println("异常通知");
    }
}

 配置多切面：

package com.hhh.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;

@Aspect //指定当前对象为切面对象
public class MyAspect {
    
    @Pointcut("execution(* com.hhh.service.*.*(..)")
    public void myPointcut(){

    }
    
//    @Before(value = "execution(* com.hhh.service.*.*(..)")
    @Before(value = "myPointcut")

    public  void myBefore(JoinPoint joinPoint){
        System.out.println("Before..."+joinPoint.getSignature().getName());
    }

    
//    @After(value = "execution(* com.hhh.service.*.*(..)")
    @After(value = "myPointcut")
    public void myAfterRetuning(JoinPoint joinPoint){
        System.out.println("AfterReturning "+joinPoint.getSignature().getName());
    }

    
    @Around("myPointcut")
    public Object myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable{
        System.out.println("Around Before");
        Object proceed = proceedingJoinPoint.proceed();
        System.out.println("Around After");
        return proceed;
    }

    
//    @After("execution(* com.hhh.service.*.*(..)")
    @After("myPointcut")
    public  void  myAfter(){
        System.out.println("最终通知");
    }

    
//    @AfterThrowing(value = "execution(* com.hhh.service.*.*(..)",throwing = "e")
    @AfterThrowing(value = "myPointcut",throwing = "e")
    public void myAfterThrowing(Exception e){
        System.out.println("有异常 "+e);
    }
}

创建目标对象：接口及实现类

 配置注解式的切面;

package com.hhh.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;

@Aspect //指定当前对象为切面对象
public class MyAspect {
    
    @Pointcut("execution(* com.hhh.service.*.*(..))")
    public void myPointcut(){

    }
    
//    @Before(value = "execution(* com.hhh.service.*.*(..)")
    @Before(value = "myPointcut()")
    public  void myBefore(JoinPoint joinPoint){
        System.out.println("Before..."+joinPoint.getSignature().getName());
    }

    
//    @After(value = "execution(* com.hhh.service.*.*(..)")
    @After(value = "myPointcut()")
    public void myAfterRetuning(JoinPoint joinPoint){
        System.out.println("AfterReturning "+joinPoint.getSignature().getName());
    }

    
    @Around("myPointcut()")
    public Object myAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable{
        System.out.println("Around Before");
        Object proceed = proceedingJoinPoint.proceed();
        System.out.println("Around After");
        return proceed;
    }

    
//    @After("execution(* com.hhh.service.*.*(..)")
    @After("myPointcut()")
    public  void  myAfter(){
        System.out.println("最终通知");
    }

    
//    @AfterThrowing(value = "execution(* com.hhh.service.*.*(..)",throwing = "e")
    @AfterThrowing(value = "myPointcut()",throwing = "e")
    public void myAfterThrowing(Exception e){
        System.out.println("有异常 "+e);
    }
}

 创建测试类：

 新创建一个切面：

 配置这个新添加的切面：

 注意多切面执行的方法：

 由于切面中@Order小的先执行：