spring aop example

"cut-off", simply said to be those unrelated to the business, but for the business module calls together the logic or responsibility to encapsulate, reduce the coupling between the modules, and conducive to future operability and maintainability. using "crosscutting" technology, AOP divides software systems into two parts: core concerns and crosscutting concerns. The main process of business process is the core concern, and the part that has little

Spring AOP application demo AOP (Aspect-Oriented Programming) can be said to be a supplement and perfection of OOP (Object-OrientedPrograming, object-oriented Programming. OOP introduces concepts such as encapsulation, inheritance, and Polymorphism to establish an object hierarchy to simulate a set of public behaviors. The question of OOP and the supplement of

I. Conceptual terminologyAOP(Aspect oriented programming): Plane-oriented programming.Aspect-oriented programming (also called facet-oriented programming) is a hotspot in software development and an important part of the spring framework. AOP enables the isolation of parts of the business logic, which reduces the coupling between parts of the business logic, improves the reusability of the program, and impr

)", which means specifying a parameter, that is, the parameters of a valid method in the specified slice, For example, the GetName method in DAO above has a parameter of type Usermodel, which can be used here. The main code is written, and then there is an essential step, since the spring project, which is spring AOP,

IOC and AOP are the two cornerstones of spring, AOP (aspect-oriented programming), or plane-oriented programming, is a programming paradigm that provides an alternative perspective to program architecture to improve object-oriented programming (OOP).In OOP development, it is based on the development of components (such as classes), and then the composition of the

Enhancement (when Merging two interfaces, you can actually use an interface exactly)　　The surround enhancement class needs to implement the Org.aopalliance.intercept.MethodInterceptor Interface. Note that this interface is not provided by spring, it is written by the AOP consortium, and Spring just borrows it.Then add in JUnit6. Declarative EnhancementsThe bean

expressions (* com.spring.service.*.* (..)) to decide. target Object : An object that is notified by one or more facets. For example, Aservcieimpl and Bserviceimpl, of course, when actually running, Spring AOP takes the proxy implementation, the actual AOP operation is TargetObject proxy object.

expressions (* com.spring.service.*.* (..)) to decide. target Object : An object that is notified by one or more facets. For example, Aservcieimpl and Bserviceimpl, of course, when actually running, Spring AOP takes the proxy implementation, the actual AOP operation is TargetObject proxy object.

expressions (* com.spring.service.*.* (..)) to decide. target Object : An object that is notified by one or more facets. For example, Aservcieimpl and Bserviceimpl, of course, when actually running, Spring AOP takes the proxy implementation, the actual AOP operation is TargetObject proxy object.

use spring AOP to implement a simple logging function. If we already have a fully functional user login interface, now we need to log the user's login behavior before and after the user calls the login interface. The simplest way to do this is to include the logging code in the original login logic, but it is necessary to modify the original login logic to introduce new bugs, so we decided to use

AOP (Aspect Orient programming), which we generally call aspect-oriented programming, complements the object-oriented approach to the crosscutting concerns that are distributed across modules in the system, such as transaction management, logging, caching, and so on. The key to the AOP implementation is the AOP proxy, which is automatically created by the

defined in Org.aopalliance.aop.Advice. This unified interface is used in spring AOP, and this interface provides additional details and extensions for AOP aspect-enhanced weaving capabilities, such as providing a more specific type of notification, such as Beforeadvice,afteradvice,throwsadvice.2.1 BeforeadviceFirst we start with the Beforeadvice:In the inheritan

Reprint: http://www.cnblogs.com/shipengzhi/articles/2716004.html One, the problem to be solved Some APIs have signature parameters (signature), the passport first verifies the signature, and the validation passes before the implementation method is executed. The first implementation method (Origin): The code that writes the checksum in the interface that requires the signature check, for example:Boolean isValid = Accountservice.validsignature (AppID, signature, client_signature); i

executed before the connection point. Afterreturningadvice: After the connection point is executed, the crosscutting logic is executed. Afteradvice: Typically implemented by the program itself, when an exception is thrown, the crosscutting logic is executed. Aroundadvice:spring AOP does not provide this interface, but the use of the AOP Alliance Methodinteceptor interface; By looking at the sou

One: Advice (notice)(1) define what to do at the connection point and provide a weaving interface for aspect enhancement. In spring AOP, the aspect behavior that is injected around a method invocation is primarily described.(2) Spring defines the interfaces that weave the enhanced behavior in a few moments?? =>org.springframework.aop.beforeadvice??? Org.springfra