spring aop example

, simply relying on such a simple design model cannot make spring so successful. The most successful part of spring is the most widely used AOP application, that is, the business management mechanism implemented based on AOP in Spring makes

Execution connection points for matching method execution Execution (Public * * (..)) Execution (* set* (..)) Execution (* com.xyz.service.accountservice.* (..)) Execution (* com.xyz.service). (..)) Execution (* Com.xyz.service ... (..)) Within (com.xyz.service.*) (only in Spring AOP) Within (Com.xyz.service. *) (only in Spring

" code during compilation. Spring AOP is a technology for Implementing AOP and is implemented using "dynamic proxy technology. (1) concepts and terminologies related to AOP technology 1) several related concepts: In the previous post of the small series, when processing the original business logic and adding the

application framework. 2. The embodiment of AOP thought in spring frame The concept of AOP and what is called crosscutting concerns are described earlier in this article, and transaction management is an example of a crosscutting concern that cuts across multiple objects in Java application. 2.1 Transaction Managem

The concept of AOP is not mentioned here, as mentioned in the previous blog . In my opinion, the cut-in is to enhance the cut-in class (that is, the connection point Joinpoint), there are several enhancements in different positions for the enhancement can be divided into: pre-enhancement, post-enhancement, surround enhancement (front + Below, let's look at how these enhancements are implemented in code. Before we write the code, we need to introduc

Spring Basic Series 9--Spring AOP reprint: http://www.cnblogs.com/leiOOlei/p/3556054.htmlSpring AOP, known as aspect-oriented programming, is a complement to object-oriented programming and is specifically designed to handle cross-focus issues distributed across modules (different methods) in the system. Simply put, an

(Aspect oriented programming aspect-oriented programming)First in the original jar package:Four core jar packages in spring compressed package requiredBeans, context, core, and expression：Https://pan.baidu.com/s/1qXLHzAWand log jar PackagesCommons-logging and log4j：https://pan.baidu.com/s/1mimTW5iAdd one moreSpring-aop-5.0.1.release.jar (for annotations, included in the

Several common exceptions during Spring development (3): java. lang. classCastException: com. sun. proxy. $ Proxy4 cannot be cast to com.edu. aop. arithmeticCalculatorImpl at com.edu. aop. main. main (Main. java: 11 ), This exception was encountered during Spring case development. Paste the complete exception informati

call to a method, or an exception thrown. In Spring AOP, the connection point is always called by the methodEnhanced processing (Advice): An AOP framework performs enhanced processing at a particular pointcut. Handles types such as "Around", "before", and "after"Pointcut: You can insert a connection point for enhanced processing. In a nutshell, when a connection

1. Introduction aspect-oriented Programming (AOP) is a complement to oop. The key to OOP is that the key to CLASS,AOP is Aspect. Spring 2.0 introduces a simpler but more powerful way to customize aspect, and you can use the a schema-based approach or the @AspectJ annotation style. Note that although the AspectJ Pointcut language is used, the bottom laye

First, let's take a look at some of the conceptual terms that the official document gives us about AOP: Slice (Aspect): A modular focus that may cross multiple objects. Transaction management is a good example of crosscutting concerns in Java application. In spring AOP, slices can be implemented using patterns or based

In fact, the meaning of AOP is to face-slicing programming.OO focuses on our approach to problem solving (encapsulated into method), while AOP focuses on the common denominator of many problem-solving approaches, and is a complement to oo thinking!Let's take an example that people often cite:For example, we are going t

the method that contains the notification, executes the custom behavior after the call is called before the method is called. Connection points (join point)A point during the execution of a, such as the execution of a method or the handling of a exception.For example: Method invocation, method execution, field set/Get, exception handling execution, class initialization, or even a point in a for loopIn theory, any point in the execution of a prog

1. IntroductionAOP (aspect-oriented programming) is a complement to OOP (object-oriented programming), which provides another way of thinking about the structure of a program. The module unit of OOP is class, and the module unit of AOP is aspect. One of the key components in spring is the AOP framework, however, the spring