spring aop example

@After ("Pointcutmethod ()") public void Doafter () {System.out.println ("final Notice"); }//Declaration wrapping Notification @Around ("Pointcutmethod ()") Public Object Doaround (Proceedingjoinpoint pjp) throws Throwable { System.out.println ("Entry Method---surround notification"); Object o = pjp.proceed (); System.out.println ("Exit Method---surround notification"); return o; } }2. applicationcontext:spring configuration fileAdd:Any notification

Org.aspectj.lang.annotation.pointcut;import org.springframework.stereotype.Component; @Component @aspect// The slice class public class Log {/*** * Configures the pointcut, which has no method body */@Pointcut ("Execution (* com.yuan.service).ad* (..)) ")public void Daddff () {}; /*** * Configure the Pre-notification * @param joinpoint */@Before ("DADDFF ()") public void before () {System.out.println ("Add Day"); }} 1.5 Configuration file Bean.xml 1.6 Test classPackage Com.yuan.test;import Org.

Web In web development, user access to the Web page is an important part of the inspection. In the case of strust, we need to write the relevant code in the action's Excute method (usually the function that calls the base class), and it is clear that this is a repetitive labor in each action. This is a good solution if we can automatically invoke the permission check function of the base class before we run the Excute. AOP provides us with such a work

1,applicationcontext.xml file Contents xmlns:aop= "Http://www.springframework.org/schema/aop" xmlns:context= http:// Www.springframework.org/schema/context " xmlns:xsi=" Http://www.w3.org/2001/XMLSchema-instance xmlns:p= "http://www.springframework.org/schema/p" xsi:schemalocation= "http:// Www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http:

for declaring pointcut expressions, which generally do not need to add additional code to declare pointcut expressions using @pointcut * The following notification uses the method name directly to refer to the current pointcut expression, and if other classes are used, add the package name */@Pointcut ("Execution (public * com.zbb.controller.*.* (..))") public void Declearjoinpointexpression () {} @Pointcut ("Execution (public * com.zbb.service.*.* (..))") public void DeclearjoinpoIntExpression

package Com.yangxin.core.transaction;import Org.aspectj.lang.proceedingjoinpoint;import Org.aspectj.lang.annotation.afterreturning;import Org.aspectj.lang.annotation.around;import Org.aspectj.lang.annotation.aspect;import Org.aspectj.lang.annotation.before;import Org.aspectj.lang.annotation.Pointcut; @Aspectpublic class TransactionDemo2 {//define slice @Pointcut (value= "Execution (* com.yangxin.core.service.*.*.* (..))") public void Point () {} @Before (value= ' point () ') public void befor

automatic enhancement will skip this Bean, The Bean is not reinforced. During development, you do not need to worry about enhanced processing of the Aspect classes defined by @ Aspect. When the Spring container detects that a Bean class uses @ Aspect annotation, the Spring container does not Class. We will consider using Spring

as a component bean, so the post-processing bean responsible for auto-enhancement will skip the bean.No enhancements will be made to the Bean.There is no need to worry about using @Aspect defined aspect classes to be enhanced when the spring container detects that a bean class uses a @Aspect callout, and the spring capacitor does notClass is enhanced.The following will consider using

Java framework --- spring AOP implementation principle --- spring AOPWhat is AOP? AOP (Aspect-OrientedProgramming) can be said to be a supplement and perfection of OOP (Object-Oriented Programing, object-oriented programming. OOP introduces concepts such as encapsulation, in

the MethodBeforeAdvice interface. This interface has a before () method that will be executed before the target method is executed. Features of pre-notification: 1. Execute the command before executing the target method. 2. The pre-notification Code cannot prevent the execution of the target method without changing the execution process of the target method. 3. Do not change the execution result of the target method. Example: Create IService interfac

Spring AOP is built on a dynamic agent basis, so spring's support for AOP is limited to method interception.By wrapping facets in the proxy class, spring weaves the slices into spring-managed beans at run time. as shown in 4.3, the proxy class encapsulates the target class a

[Spring-boot] spring aop is initially exposed to aspect programming, spring-bootaop As we all know, spring has two core functions: aop and ioc, that is, face-oriented and control inversion. Here we will discuss how to use

Spring framework (4) --- explanations of AOP, spring --- aop Introduction to AOP I have to say that it is a little difficult to understand this Aop at the beginning. It is mainly because there are many new concepts and it may not

Spring AOP and Spring AOP As the core part of Spring, AOP plays an important role in Spring. AOP divides the software system into two parts:

This example full source address: Https://github.com/yu-linfeng/BlogRepositories/tree/master/repositories/Spring%20AOP%E9%AB%98%E7%BA %a7%e2%80%94%e2%80%94%e6%ba%90%e7%a0%81%e5%ae%9e%e7%8e%b0%ef%bc%882%ef%bc%89spring%20aop%e4%b8%ad%e9%80%9a%e7% 9f%a5%e5%99%a8%ef%bc%88advisor%ef%bc%89%e4%b8%8e%e5%88%87%e9%9d%a2%ef%bc%88aspect%ef%bc%89The reason why I haven't formally entered the source code for

exception object" public void afterThrowing(Exception ex){System.out.println(ex.getMessage());} 4. Final Enhancement Features: whether or not an exception is thrown in the method, It will be further organized at the end of the target method, similar to finally. 5. Enhanced surround Processing Feature: the enhancement processing can be woven before and after the target method. Public Boolean around (ProceedingJoinPoint pjp) throws Throwable {System. out. println ("parameter of the target metho

Advanced Spring AOP -- source code implementation (2) Advisor and Aspect in Spring AOP, aopadvisor The example of the complete source code address: https://github.com/yu-linfeng/BlogRepositories/tree/master/repositories/Spring%20A

Objective:In the previous article: [Spring Framework]spring An introduction to AOP basics. We already know how a spring AOP program is developed, and here we will summarize and learn AOP based on ASPECTJ.One, AspectJ's Overview:AS

Spring AOP and Spring AOP What is AOP (Aspect Oriented Programming ): We have always called Object Oriented Programming object-oriented Programming as a vertical Programming method. It extends to the end in a line, and can be imagined as an endless path. There is often a sit

-concern and weave the cross-concern to the system; for example, the log mentioned above; Improve OOP; Reduces coupling between components and modules; Make the system easy to expand; In addition, due to separation of concerns, you can obtain better reuse of components. 6.1.3 basic concepts of AOP Before performing AOP development, familiarize yourself with t