springAOP注解方式定义切入点报错error at ::0 can't find referenced pointcut

Posted 2020-08-14

【说明】

　　1、使用spring版本:4.0.4

　　2、springAOP相关依赖包：

　　　　1）aopalliance-1.0.jar

　　　　2）aspectjweaver-1.8.9.jar

　　　　3）aspectjrt-1.8.9.jar

　　3、分析：

　　　　1）当切面类的方法上通知注解直接输入切入点表达式时，没有报错。切面类代码如下：

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.hibernate.Transaction;
import org.springframework.stereotype.Component;

@Component("myTransaction")
@Aspect
public class MyTransaction extends HibernateUtil{
    
    private Transaction transaction;

    @Before("execution(* net.fifteenho.spring.aop.annotation.PersonDaoImpl.*(..))")
    public void beginTransaction() {
        transaction = sessionFactory.getCurrentSession().beginTransaction();
    }
    
    @AfterReturning("execution(* net.fifteenho.spring.aop.annotation.PersonDaoImpl.*(..))")
    public void commit() {
        transaction.commit();
    }
}

　　　　2）当切面类的方法上通知注解引入定义的切入点，报错error at ::0 can‘t find referenced pointcut。切面类代码如下：

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.hibernate.Transaction;
import org.springframework.stereotype.Component;

@Component("myTransaction")
@Aspect
public class MyTransaction extends HibernateUtil{
    
    @Pointcut("execution(* net.fifteenho.spring.aop.annotation.PersonDaoImpl.*(..))")
    private void mypc(){}
    
    private Transaction transaction;

    @Before("mypc()")
    public void beginTransaction() {
        transaction = sessionFactory.getCurrentSession().beginTransaction();
    }
    
    @AfterReturning("mypc()")
    public void commit() {
        transaction.commit();
    }
}

 

　　4、本人解决方法：aspectjweaver.jar替换较新的aspectjweaver-1.8.9.jar

　　5、报错原因：springAOP依赖jar版本过低。

 

【springAOP相关依赖包下载maven】

    <!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
    <dependency>
        <groupId>aopalliance</groupId>
        <artifactId>aopalliance</artifactId>
        <version>1.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.8.9</version>
    </dependency>


    <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt -->
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>1.8.9</version>
    </dependency>