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