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

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 
 3 <beans xmlns="http://www.springframework.org/schema/beans"
 4         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5         xmlns:aop="http://www.springframework.org/schema/aop"
 6         xmlns:tx="http://www.springframework.org/schema/tx"
 7         xmlns:p="http://www.springframework.org/schema/p"
 8         xsi:schemaLocation="
 9             http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
10             http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
11             http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
12     
13     
14     <bean />
15     
16     <aop:config>
17         <aop:aspect ref="magician">
18             <aop:pointcut expression="execution(* inter.Thinker.thinkOfSomething(String)) and args(thoughts)"  />
19             <aop:before method="interceptThoughts" pointcut-ref="thingking" arg-names="thoughts"/>
20         </aop:aspect>
21     </aop:config>   
26 </beans>

读心术：

1 package inter;
2 
3 public interface MindReader {
4     
5     void interceptThoughts(String thoughts);
6 
7     String getThoughts();
8     
9 }

 1 package imple;
 2 
 3 import inter.MindReader;
 4 
 5 public class Magician implements MindReader{
 6     
 7     private String thoughts;
 8 
 9     public void interceptThoughts(String thoughts) {
10 
11         System.out.println("前置Intercepting volunter's thoughts");
12         this.thoughts = thoughts;
13         System.out.println(thoughts);
14         System.out.println("后置");
15     }
16 
17     public String getThoughts() {
18         return thoughts;
19     }
20 
21 }

志愿者：

1 package inter;
2 
3 public interface Thinker {
4     void thinkOfSomething(String thoughts);
5 }

 1 package imple;
 2 
 3 import inter.Thinker;
 4 
 5 public class Volunteer implements Thinker{
 6 
 7     private String thoughts;
 8     
 9     public void thinkOfSomething(String thoughts) {
10         this.thoughts = thoughts;
11     }
12 
13     public String getThoughts(){
14         return thoughts;
15     }
16 }

测试代码：

1     @Test
2     public void test7(){
3         Magician magician = (Magician) ctx.getBean("magician");
4         magician.interceptThoughts("ssss");
5     }

运行结果：

前置Intercepting volunter's thoughts
ssss
后置

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

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 
 3 <beans xmlns="http://www.springframework.org/schema/beans"
 4         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5         xmlns:aop="http://www.springframework.org/schema/aop"
 6         xmlns:tx="http://www.springframework.org/schema/tx"
 7         xmlns:p="http://www.springframework.org/schema/p"
 8         xsi:schemaLocation="
 9             http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
10             http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
11             http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
12 
13     <aop:aspectj-autoproxy></aop:aspectj-autoproxy><!-- 自定义配置文件 -->
14     
15     <bean />
16     
17 
18 </beans>

 1 package imple;
 2 
 3 import org.aspectj.lang.annotation.Aspect;
 4 import org.aspectj.lang.annotation.Before;
 5 import org.aspectj.lang.annotation.Pointcut;
 6 
 7 import inter.MindReader;
 8

/**
* 读心者读取志愿者信息
*/

 9 @Aspect
10 public class MagicianAspectJ implements MindReader{
11     
12     private String thoughts;
13     
14     @Pointcut("execution(* inter.Thinker.thinkOfSomething(String)) && args(thoughts)")
15     public void thinking(String thoughts){
16         
17     }
18 
19     @Before("thinking(thoughts)")
20     public void interceptThoughts(String thoughts) {
21         System.out.println("Intercepting volunteer's thoughts: " + thoughts);
22         this.thoughts = thoughts;
23     }
24 
25     public String getThoughts() {
26         return thoughts;
27     }
28 
29 }

1     @Test
2     public void test11(){
3         MagicianAspectJ magician = (MagicianAspectJ) ctx.getBean("magicianAspectJ");
4         magician.interceptThoughts("sdfsdf");
5     }

结果

Intercepting volunteer's thoughts: sdfsdf

spring含参数 环绕通知demo

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