spring含参数 环绕通知demo

题目：有一个懂得读心术的人需要完成两件事情：截听志愿者的内心感应和显示他们在想什么

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:p="http://www.springframework.org/schema/p"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
    
    
    <bean id="magician" class="imple.Magician"/>
    
    <aop:config>
        <aop:aspect ref="magician">
            <aop:pointcut expression="execution(* inter.Thinker.thinkOfSomething(String)) and args(thoughts)" id="thingking" />
            <aop:before method="interceptThoughts" pointcut-ref="thingking" arg-names="thoughts"/>
        </aop:aspect>
    </aop:config>   
</beans>

读心术：

package inter;

public interface MindReader {
    
    void interceptThoughts(String thoughts);

    String getThoughts();
    
}

package imple;

import inter.MindReader;

public class Magician implements MindReader{
    
    private String thoughts;

    public void interceptThoughts(String thoughts) {

        System.out.println("前置Intercepting volunter's thoughts");
        this.thoughts = thoughts;
        System.out.println(thoughts);
        System.out.println("后置");
    }

    public String getThoughts() {
        return thoughts;
    }

}

志愿者：

package inter;

public interface Thinker {
    void thinkOfSomething(String thoughts);
}

package imple;

import inter.Thinker;

public class Volunteer implements Thinker{

    private String thoughts;
    
    public void thinkOfSomething(String thoughts) {
        this.thoughts = thoughts;
    }

    public String getThoughts(){
        return thoughts;
    }
}

测试代码：

    @Test
    public void test7(){
        Magician magician = (Magician) ctx.getBean("magician");
        magician.interceptThoughts("ssss");
    }

运行结果：

前置Intercepting volunter's thoughts
ssss
后置

----------------------------------------------------------基于注解前置通知---------------------------------------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:p="http://www.springframework.org/schema/p"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    <aop:aspectj-autoproxy></aop:aspectj-autoproxy><!-- 自定义配置文件 -->
    
    <bean id="magicianAspectJ" class="imple.MagicianAspectJ"/>
    

</beans>

package imple;

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

import inter.MindReader;

/**
* 读心者读取志愿者信息
*/

@Aspect
public class MagicianAspectJ implements MindReader{
    
    private String thoughts;
    
    @Pointcut("execution(* inter.Thinker.thinkOfSomething(String)) && args(thoughts)")
    public void thinking(String thoughts){
        
    }

    @Before("thinking(thoughts)")
    public void interceptThoughts(String thoughts) {
        System.out.println("Intercepting volunteer's thoughts: " + thoughts);
        this.thoughts = thoughts;
    }

    public String getThoughts() {
        return thoughts;
    }

}

    @Test
    public void test11(){
        MagicianAspectJ magician = (MagicianAspectJ) ctx.getBean("magicianAspectJ");
        magician.interceptThoughts("sdfsdf");
    }

结果

Intercepting volunteer's thoughts: sdfsdf