Spring Slicing programming

1, create a new project, import the corresponding jar package

Aopalliance.jar

Aspectjweaver.jar

Commons-logging-1.2.jar

Spring-aop-4.0.0.release.jar

Spring-aspects-4.0.0.release.jar

Spring-beans-4.0.0.release.jar

Spring-context-4.0.0.release.jar

Spring-core-4.0.0.release.jar

Spring-expression-4.0.0.release.jar

2. Create a class that requires slicing programming

package com.sun.spring.stu.aop;public interface arithmaticcaculator {     int add (INT I, INT J);     int sub (Int i, int  J);     int mul (int i, int j);    int  Div (int i, int j);} package com.sun.spring.stu.aop;import org.springframework.stereotype.component; @Component (" Arithmaticcaculator ") Public class arithmaticcaculatorimpl implements arithmaticcaculator  {     @Override     public int add (int i, int  J)  {    return i+j;    }    @ Override    public int sub (INT I, INT J)  {     return i-j;    }     @Override     public &nbSp;int mul (INT I, INT J)  {    return i*j;     }     @Override     public int div (int i, int  J)  {    return i/j;    }}

3, establish the Section class

Package Com.sun.spring.stu.aop;import Java.util.arrays;import Org.aspectj.lang.joinpoint;import Org.aspectj.lang.annotation.aspect;import Org.aspectj.lang.annotation.before;import Org.springframework.stereotype.Component, @Aspect @componentpublic class Loggingaspect {@Before ("Execution (public int com.sun.spring.stu.aop.arithmaticcaculator.* (int,int)) "public void Beforemethod (Joinpoint joinpoint) {String m    Ethodname = Joinpoint.getsignature (). GetName ();    object[] args = Joinpoint.getargs ();    System.out.println ("the method" + methodname+ "Begain with:" +arrays.aslist (args)); }}

4. Configure IOC container

<?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:context= "Http://www.springframework.org/schema/context"     xmlns:aop= "http// Www.springframework.org/schema/aop "    xsi:schemalocation=" http://www.springframework.org/ schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd    http:// www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd     http://www.springframework.org/schema/context http://www.springframework.org/schema/ Context/spring-context-4.0.xsd ">    <context:component-scan base-package=" COM.SUN.SPRING.STU.AOP "></context:component-scan>    <aop:aspectj-autoproxy ></aop:aspectj-autoproxy&gT;</beans> 

5. Call the class that requires the slice programming, and naturally call the related code in the slice class

ApplicationContext CTX = new Classpathxmlapplicationcontext ("Applicationcontext.xml"); Arithmaticcaculator caculator = (arithmaticcaculator) ctx.getbean ("Arithmaticcaculator"); int result = Caculator.add ( 21, 90); System.out.print ("The result:" +result);

6. Results:

2016-2-6 12:01:53 Org.springframework.context.support.ClassPathXmlApplicationContext Preparerefresh

Information: Refreshing org[email protected]2be9cb75:startup date [Sat. 12:01:53 CST 2016]; Root of context Hierarchy

2016-2-6 12:01:53 Org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadbeandefinitions

Info: Loading XML Bean Definitions from class path resource [Applicationcontext.xml]

The method add Begain with:[21, 90]

The result:111

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Spring Slicing programming