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  • Spring_7_AOP之Advice应用

    Spring学习(21)--- AOP之Advice应用(上) 出处:http://www.cnblogs.com/JsonShare

     
    前置通知(Before advice) 在某个连接点(join point)之前执行的通知,但不能阻止连接点前的执行(除非它抛出异常)
    返回后通知(After returning advice) 在某个连接点(join point)正常完成后执行的通知
    抛出异常后通知(After throwing advice) 在方法抛出异常退出时执行的通知
    后通知(After(finally) advice) 当某个连接点退出的时候执行的通知(无论是正常返回还是异常退出)
    环绕通知(Around advice) 包围一个连接点(join point)的通知

    导入需要的包:aspectjweaver.jar、aopalliance-1.0.jar

    (一)Before Advice

    例子:

    新建两个类:

    package com.aop.schema;
    /**
    *
    * 切面类
    *
    */
    public class MyAspect {
    
    	public void before(){
    		System.out.println("MyAspect.before");
    	}
    }
    
    package com.aop.schema;
    /**
    *
    * 业务类
    *
    */
    public class ApsectBiz {
    
    	public void biz(){
    		System.out.println("ApsectBiz.biz");
    	}
    }
    

    XML配置:

    <?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:context="http://www.springframework.org/schema/context"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-4.1.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
             
         <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
          
         <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
          
         <aop:config>
              <aop:aspect id="myAspectAOP" ref="myAspect">
                <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
                <aop:before method="before" pointcut-ref="myPointcut"/>
              </aop:aspect>
         </aop:config>
     
    </beans>
    

    单元测试:

    package com.aop.schema;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class UnitTest {
    
    	@Test
    	public void test(){
    		ApplicationContext context = new ClassPathXmlApplicationContext("classpath:spring-aop.xml");
    		ApsectBiz biz = (ApsectBiz)context.getBean("apsectBiz");
    		biz.biz();
    	}
    }
    

    结果:

    复制代码
    七月 09, 2015 10:30:24 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 22:30:24 CST 2015]; root of context hierarchy
    七月 09, 2015 10:30:24 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    ApsectBiz.biz
    复制代码

    PS:ApsectBiz.biz是业务方法,在它之前,执行了前置通知MyAspect.before,符合想要的结果

    (二)After returning advice

    例子:

    修改一下切面类MyAspect(添加afterreturning方法):

    package com.aop.schema;
    /**
    *
    * 切面类
    *
    */
    public class MyAspect {
    
    	public void before(){
    		System.out.println("MyAspect.before");
    	}
    	
    	public void afterreturning(){
    		System.out.println("MyAspect.afterreturning");
    	}
    }
    

    XML配置修改为:

    <?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:context="http://www.springframework.org/schema/context"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-4.1.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
             
         <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
          
         <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
          
         <aop:config>
              <aop:aspect id="myAspectAOP" ref="myAspect">
                <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
                <aop:before method="before" pointcut-ref="myPointcut"/>
                <aop:after-returning method="afterreturning" pointcut-ref="myPointcut"/>
              </aop:aspect>
         </aop:config>
     
    </beans>
    

    单元测试同上:

    结果:

    复制代码
    七月 09, 2015 10:38:41 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 22:38:41 CST 2015]; root of context hierarchy
    七月 09, 2015 10:38:41 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    ApsectBiz.biz
    MyAspect.afterreturning
    复制代码

    (三)After throwing advice

    说明:使用throwing属性来指定可被传递的异常的参数名称

    例子:

    修改一下切面类MyAspect(添加afterthrowing方法):

    package com.aop.schema;
    /**
    *
    * 切面类
    *
    */
    public class MyAspect {
    
    	public void before(){
    		System.out.println("MyAspect.before");
    	}
    	
    	public void afterreturning(){
    		System.out.println("MyAspect.afterreturning");
    	}
    	
    	public void afterthrowing(){
    		System.out.println("MyAspect.afterthrowing");
    	}
    }
    

    修改业务类ApsectBiz(抛出一个异常):

    package com.aop.schema;
    
    /**
    *
    * 业务类
    *
    */
    public class ApsectBiz {
    
    	public void biz(){
    		System.out.println("ApsectBiz.biz");
    		throw new RuntimeException();  //故意抛出异常
    	}
    }
    

    XML配置:

    <?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:context="http://www.springframework.org/schema/context"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-4.1.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
             
         <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
          
         <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
          
         <aop:config>
              <aop:aspect id="myAspectAOP" ref="myAspect">
                <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
                <aop:before method="before" pointcut-ref="myPointcut"/>
                <aop:after-returning method="afterreturning" pointcut-ref="myPointcut"/>
                <aop:after-throwing method="afterthrowing" pointcut-ref="myPointcut"/>
              </aop:aspect>
         </aop:config>
     
    </beans>
    

    单元测试同上:

    测试结果:

    复制代码
    七月 09, 2015 10:47:46 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 22:47:46 CST 2015]; root of context hierarchy
    七月 09, 2015 10:47:46 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    ApsectBiz.biz
    MyAspect.afterthrowing
    复制代码

    PS:有没有发现有什么问题? MyAspect.afterreturning没有了,biz()中抛出异常,biz()方法没有正常返回,所以MyAspect.afterreturning没有了。

    (四)After(finally) advice

    修改一下切面类MyAspect(添加after方法):

    package com.aop.schema;
    /**
    *
    * 切面类
    *
    */
    public class MyAspect {
    
    	public void before(){
    		System.out.println("MyAspect.before");
    	}
    	
    	public void afterreturning(){
    		System.out.println("MyAspect.afterreturning");
    	}
    	
    	public void afterthrowing(){
    		System.out.println("MyAspect.afterthrowing");
    	}
    	
    	public void after(){
    		System.out.println("MyAspect.after");
    	}
    }
    

    XML配置:

    <?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:context="http://www.springframework.org/schema/context"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-4.1.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
             
         <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
          
         <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
          
         <aop:config>
              <aop:aspect id="myAspectAOP" ref="myAspect">
                <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
                <aop:before method="before" pointcut-ref="myPointcut"/>
                <aop:after-returning method="afterreturning" pointcut-ref="myPointcut"/>
                <aop:after-throwing method="afterthrowing" pointcut-ref="myPointcut"/>
                <aop:after method="after" pointcut-ref="myPointcut"/>
              </aop:aspect>
         </aop:config>
     
    </beans>
    

    单元测试同上:

    结果:

    复制代码
    七月 09, 2015 10:56:10 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 22:56:10 CST 2015]; root of context hierarchy
    七月 09, 2015 10:56:10 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    ApsectBiz.biz
    MyAspect.afterthrowing
    MyAspect.after
    复制代码

    (五)Around advice

    注意:通知方法的第一个参数必ProceedingJoinPoint类型

    例子:

    修改一下切面类MyAspect(添加around方法):

    package com.aop.schema;
    
    import org.aspectj.lang.ProceedingJoinPoint;
    
    /**
    *
    * 切面类
    *
    */
    public class MyAspect {
    
    	public void before(){
    		System.out.println("MyAspect.before");
    	}
    	
    	public void afterreturning(){
    		System.out.println("MyAspect.afterreturning");
    	}
    	
    	public void afterthrowing(){
    		System.out.println("MyAspect.afterthrowing");
    	}
    	
    	public void after(){
    		System.out.println("MyAspect.after");
    	}
    	
    	public void around(ProceedingJoinPoint pjp) throws Throwable{
    		System.out.println("MyAspect.around_1");
    		Object obj=pjp.proceed();
    		System.out.println("MyAspect.around_2");
    	}
    }
    

    XML配置:

    <?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:context="http://www.springframework.org/schema/context"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context-4.1.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
             
         <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
          
         <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
          
         <aop:config>
              <aop:aspect id="myAspectAOP" ref="myAspect">
                <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
                <aop:before method="before" pointcut-ref="myPointcut"/>
                <aop:after-returning method="afterreturning" pointcut-ref="myPointcut"/>
                <aop:after-throwing method="afterthrowing" pointcut-ref="myPointcut"/>
                <aop:after method="after" pointcut-ref="myPointcut"/>
                <aop:around method="around" pointcut-ref="myPointcut"/>
              </aop:aspect>
         </aop:config>
     
    </beans>
    

    单元测试同上:

    结果:

    七月 09, 2015 11:15:20 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 23:15:20 CST 2015]; root of context hierarchy
    七月 09, 2015 11:15:20 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    MyAspect.around_1
    ApsectBiz.biz
    java.lang.RuntimeException
        at com.aop.schema.ApsectBiz.biz(ApsectBiz.java:11)
        at com.aop.schema.ApsectBiz$$FastClassBySpringCGLIB$$ae10254d.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
        at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
        at com.aop.schema.MyAspect.around(MyAspect.java:31)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:68)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.aspectj.AspectJAfterAdvice.invoke(AspectJAfterAdvice.java:43)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:58)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
        at com.aop.schema.ApsectBiz$$EnhancerBySpringCGLIB$$1fbf7bae.biz(<generated>)
        at com.aop.schema.UnitTest.test(UnitTest.java:13)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
        at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
        at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
    MyAspect.after
    MyAspect.afterreturning
    View Code

    PS:有异常,仔细看,原来是around(ProceedingJoinPoint pjp)的try catch捕捉到了biz()抛出的异常,现在把异常注释掉(try catch里面怎么处理异常?这里要看具体的业务需要,这里先注释掉)

    package com.aop.schema;
    /**
    *
    * 业务类
    *
    */
    public class ApsectBiz {
    
    	public void biz(){
    		System.out.println("ApsectBiz.biz");
    		//throw new RuntimeException();  //故意抛出异常
    	}
    }
    

    测试结果:

    复制代码
    七月 09, 2015 11:18:17 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b3c607: startup date [Thu Jul 09 23:18:17 CST 2015]; root of context hierarchy
    七月 09, 2015 11:18:17 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    MyAspect.before
    MyAspect.around_1
    ApsectBiz.biz
    MyAspect.around_2
    MyAspect.after
    MyAspect.afterreturning
    复制代码

    Spring学习(22)--- AOP之Advice应用(下)

     

    (六)Advice parameters(advice带参数的情况)

    例子:

    修改MyAspect(添加around_init方法):

     1 package com.aop.schema;
     2 
     3 import org.aspectj.lang.ProceedingJoinPoint;
     4 
     5 /**
     6 *
     7 * 切面类
     8 *
     9 */
    10 public class MyAspect {
    11 
    12     public void before(){
    13         System.out.println("MyAspect.before");
    14     }
    15     
    16     public void afterreturning(){
    17         System.out.println("MyAspect.afterreturning");
    18     }
    19     
    20     public void afterthrowing(){
    21         System.out.println("MyAspect.afterthrowing");
    22     }
    23     
    24     public void after(){
    25         System.out.println("MyAspect.after");
    26     }
    27     
    28     public void around(ProceedingJoinPoint pjp) {
    29         try {
    30             System.out.println("MyAspect.around_1");
    31             Object obj=pjp.proceed();
    32             System.out.println("MyAspect.around_2");
    33         } catch (Throwable e) {
    34             e.printStackTrace();
    35         }
    36     }
    37     
    38     public void around_init(ProceedingJoinPoint pjp,String name,int age) {
    39         System.out.println(name+"  "+age);
    40         try {
    41             System.out.println("MyAspect.around_1");
    42             Object obj=pjp.proceed();
    43             System.out.println("MyAspect.around_2");
    44         } catch (Throwable e) {
    45             e.printStackTrace();
    46         }
    47     }
    48 }

    修改ApsectBiz类(添加init方法):

     1 package com.aop.schema;
     2 /**
     3 *
     4 * 业务类
     5 *
     6 */
     7 public class ApsectBiz {
     8 
     9     public void biz(){
    10         System.out.println("ApsectBiz.biz");
    11         //throw new RuntimeException();  //故意抛出异常
    12     }
    13     
    14     public void init(String name,int age){
    15         System.out.println("ApsectBiz.init : "+ name +"  " +age);
    16     }
    17 }

    XML配置:

     1 <?xml version="1.0" encoding="UTF-8"?>
     2  <beans xmlns="http://www.springframework.org/schema/beans"
     3         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     4         xmlns:aop="http://www.springframework.org/schema/aop"
     5         xmlns:context="http://www.springframework.org/schema/context"
     6         xsi:schemaLocation="http://www.springframework.org/schema/beans
     7             http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
     8             http://www.springframework.org/schema/context
     9             http://www.springframework.org/schema/context/spring-context-4.1.xsd
    10             http://www.springframework.org/schema/aop
    11             http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
    12          
    13      <bean id="myAspect" class="com.aop.schema.MyAspect"></bean>
    14       
    15      <bean id="apsectBiz" class="com.aop.schema.ApsectBiz"></bean>
    16       
    17      <aop:config>
    18           <aop:aspect id="myAspectAOP" ref="myAspect">
    19           <!--  先注释掉,便于观察结果
    20             <aop:pointcut id="myPointcut" expression="execution(* com.aop.schema.ApsectBiz.*(..))" />
    21             <aop:before method="before" pointcut-ref="myPointcut"/>
    22             <aop:after-returning method="afterreturning" pointcut-ref="myPointcut"/>
    23             <aop:after-throwing method="afterthrowing" pointcut-ref="myPointcut"/>
    24             <aop:after method="after" pointcut-ref="myPointcut"/>
    25             <aop:around method="around" pointcut-ref="myPointcut"/>
    26            -->
    27              
    28             <aop:around method="around_init" pointcut="execution(* com.aop.schema.ApsectBiz.init(String,int)) and args(name,age)"/>
    29           </aop:aspect>
    30      </aop:config>
    31  
    32 </beans>
     

    单元测试:

    package com.aop.schema;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class UnitTest {
    
    	@Test
    	public void test(){
    		ApplicationContext context = new ClassPathXmlApplicationContext("classpath:spring-aop.xml");
    		ApsectBiz biz = (ApsectBiz)context.getBean("apsectBiz");
    		biz.init("Json",25);
    	}
    }
    

    结果:

    复制代码
    七月 09, 2015 11:48:42 下午 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@118e0f0f: startup date [Thu Jul 09 23:48:42 CST 2015]; root of context hierarchy
    七月 09, 2015 11:48:42 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    INFO: Loading XML bean definitions from class path resource [spring-aop.xml]
    Json  25
    MyAspect.around_1
    ApsectBiz.init : Json  25
    MyAspect.around_2
    复制代码
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  • 原文地址:https://www.cnblogs.com/charles999/p/6650013.html
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