Spring AOP没有起作用

Question

接口IAccount:

[code="java"]
package study.spring.aop.account;

import java.util.List;

public interface IAccount {

public List<String> getAllAccount();

public String getAccountById(String id);

}
[/code]

实现类：
[code="java"]
package study.spring.aop.account.impl;

import java.util.List;

import study.spring.aop.account.IAccount;

public class AccountImpl implements IAccount {

public List<String> getAllAccount() {
    // TODO Auto-generated method stub
    return null;
}

public String getAccountById(String id) {
    // TODO Auto-generated method stub
    return null;
}

}
[/code]

Advice类：
[code="java"]
package study.spring.aop.advice;

import java.lang.reflect.Method;

import org.springframework.aop.MethodBeforeAdvice;

public class MyBeforeMethodAdvice implements MethodBeforeAdvice {

public void before(Method method, Object[] args, Object target)
        throws Throwable {

    System.out.println("方法调用之前...");
    System.out.println("下面是方法调用的信息：");
    System.out.println("所执行的方法是:" + method);
    System.out.println("调用方法的参数是：" + args);
    System.out.println("目标对象是：" + target);
}

}
[/code]

Spring 配置文件：
[code="java"]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<bean id="account" class="study.spring.aop.account.impl.AccountImpl" />

<!--  第一个拦截器-->
<bean id="myBeforeAdvice" class="study.spring.aop.advice.MyBeforeMethodAdvice"/>

<!--  使用ProxyFactoryBean 产生代理对象-->
<bean id="accountProxy" class="org.springframework.aop.framework.ProxyFactoryBean">

    <!-- 设置目标对象 -->
    <property name="target">
        <ref bean="account" />
    </property>

    <!-- 这里是代理的接口 -->
    <property name="proxyInterfaces">
        <list>
            <value>study.spring.aop.account.IAccount</value>
        </list>
    </property>

    <!--  代理对象所使用的拦截器-->
    <property name="interceptorNames">
        <list>
            <value>myBeforeAdvice</value>
        </list>
    </property>
</bean>

[/code]

测试代码：
[code="java"]
package study.spring.aop;

import org.springframework.test.AbstractSingleSpringContextTests;

import study.spring.aop.account.IAccount;

public class SpringTest extends AbstractSingleSpringContextTests {

@Override
protected String[] getConfigLocations() {
    return new String[] { "classpath:applicationContext.xml" };
}

public void testApp() {
    IAccount account = (IAccount) this.getApplicationContext().getBean("account");
    account.getAccountById("1");
}

}
[/code]

运行测试代码，advice里的输出为什么没有打印，求指教，谢谢大家。

Answer 1

你应该获取accountProxy 而不是 account 进行测试