Question

我正在写我的第一个AOP。我已经粘贴了下面的代码，它不会在方法调用中被截获。我不确定是什么原因。

在控制台上它只打印：

addCustomerAround（）正在运行，args：dummy

并且没有打印任何AOP建议代码。

有人可以帮忙吗？

接口

package com.test.model;

import org.springframework.beans.factory.annotation.Autowired;

public interface AopInterface {


    @Autowired
    void addCustomerAround(String name);
}

类别：

package com.test.model;

import com.test.model.AopInterface;
import org.springframework.stereotype.Component;
import org.springframework.beans.factory.annotation.Autowired;

@Component
public class AopClass implements AopInterface {

    public void addCustomerAround(String name){
        System.out.println("addCustomerAround() is running, args : " + name);
    }
}

AOP：

package com.test.model;

import java.util.Arrays;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;



@Aspect
public class TestAdvice{


     @Around("execution(* com.test.model.AopInterface.addCustomerAround(..))")
       public void testAdvice(ProceedingJoinPoint joinPoint) throws Throwable {

        System.out.println("testAdvice() is running!");
        System.out.println("hijacked method : " + joinPoint.getSignature().getName());
        System.out.println("hijacked arguments : " + Arrays.toString(joinPoint.getArgs()));

        System.out.println("Around before is running!");
        joinPoint.proceed(); 
        System.out.println("Around after is running!");

        System.out.println("******");

       }
}

appcontext.xml：

<!-- Aspect -->
    <aop:aspectj-autoproxy />
    <bean id="AopClass" class="com.test.model.AopClass" />
    <bean id="TestAdvice" class="com.test.model.TestAdvice" />

POM：

<!-- AOP -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.6.11</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.11</version>
        </dependency>

方法调用：

aoptest.addCustomerAround("dummy");

Answer 1

我在这里看不到任何错误。我刚试过你的代码，效果很好。我的测试班：

public class App {
    public static void main(String[] args) throws Exception {

        ApplicationContext appContext = new ClassPathXmlApplicationContext("appcontext.xml");

        //-------------------------
        AopClass aopClass = (AopClass) appContext.getBean("AopClass");
        aopClass.addCustomerAround("dummy");
    }
}

结果

你可以重试构建你的maven项目吗？！再试一次？！

Answer 2

根据Aspect Oriented Programming with Spring，当一个类实现接口时，将使用JDK动态代理，如果没有实现接口，则将创建CGLIB代理。要强制CGLIB代理，您必须设置proxy-target-class =“true”。

请用appcontext.xml：

<!-- Aspect -->
<aop:aspectj-autoproxy proxy-target-class="true"></aop:aspectj-autoproxy>
<bean id="AopClass" class="com.test.model.AopClass" />
<bean id="TestAdvice" class="com.test.model.TestAdvice" />

输出：

testAdvice() is running!
hijacked method : addCustomerAround
hijacked arguments : [dummy]
Around before is running!
addCustomerAround() is running, args : dummy
Around after is running!
******

Spring AOP与AspectJ无法拦截

2 个答案: