【发布时间】:2015-09-25 06:22:11
【问题描述】:
我正在编写我的第一个 AOP。我已经粘贴了下面的代码,它不会在方法调用中被拦截。 我不确定可能是什么原因。
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?
界面:
package com.test.model;
import org.springframework.beans.factory.annotation.Autowired;
public interface AopInterface {
@Autowired
void addCustomerAround(String name);
}
类:
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");
【问题讨论】:
-
在进行方法调用之前,您从哪里获得对 AopClass 实例的引用?它是由 Spring 连接的吗?