Spring Boot AOP Implementation with examples | Interview Questions and Answers | Code Decode

In this video of code decode aop spring boot example interview questions. We have explained aop with example and interview questions.
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What is AOP?
Aspect Oriented Programming (AOP) is a programming paradigm aiming to segregate cross-cutting functionalities, such as logging, from business logic in an application
Spring boot application mainly divided in to three layers:
Web Layer for exposing the services using RESTFul web services.
Business layer to handle business logic.
Data Layer for data persistence logic.
Each layer is having different responsibility and there are some common aspects which gets apply to all layers. e.g. Logging, Security, Validation, etc. Common aspects are also called as cross-cutting concerns.
Spring AOP has interceptors which can intercept application and its methods.
What are AOP Terminologies?
Aspect
Aspect is a class in which we define Pointcuts and Advices.
Advice
It’s the behavior that addresses system-wide concerns (logging, security checks, etc…). This behavior is represented by a method to be executed at a JoinPoint. This behavior can be executed Before, After, or Around the JoinPoint according to the Advice type as we will see later.
Pointcut
A Pointcut is an expression that defines at what JoinPoints a given Advice should be applied.
JoinPoint
Simply put, a JoinPoint is a point in the execution flow of a method where an Aspect (new behavior) can be plugged in.
What are Types of advices in aspectj AOP?
@Before : Advice that executes before a join point, but which does not have the ability to prevent execution flow proceeding to the join point (unless it throws an exception).
@AfterReturning : Advice to be executed after a join point completes normally.
@AfterThrowing : Advice to be executed if a method exits by throwing an exception.
@After : Advice to be executed regardless of the means by which a join point exits (normal or exceptional return).
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[@vinayuddagiri]

Thank you so much for the content. Your channel is my go to channel for all the interview preparations.

[@CodeDecode]

Thanks. Glad to be helpful 😊

[@sasikala_chowdary]

Same for mee too, thanks a lot, keep uploading more and more interview questions and topics asked in real time.

[@gnsc]

me too also

[@CodeDecode]

Thanks 👍

[@KarthikSaakre]

Same here :)

[@gnsc]

I don't know your name Madam. But, I have subscribed long ago only because of you. You're the one who teach in best way without lagging. You will always mention the right things in videos. I never found any other tutorials like yours. I like so much your videos. Thank you so much for sharing knowledge with us.

[@CodeDecode]

Thanks a lot 😊😊. Just the experience speaks 😊

[@rahul-java-dev]

Thank you so much ma'am. It was very confusing to implement AOP with Spring Boot, but post your video now I've good understanding of its flow and impl.

[@CodeDecode]

Glad to hear that Rahul 👍🙂

[@ankitgiri6874]

your all videos are amazing and to the point such that if anyone start watching it, he will watch it till end. I have seen other teacher's videos too and left in between because they make concepts complex, talk non logic & boring and other reasons.

[@CodeDecode]

Glad to hear this Ankit. Nothing rocket science Man. Experience says it all ❤️❤️. But it really means a lot that you took step forward to appreciate our hard work Man 🙏🙏👍😊😊

[@samarthurs8000]

That was pretty neat. I always avoided this one part of Spring. Now I could confidently say that I have a basic(good) understanding of Spring AOP.

[@CodeDecode]

Agreed. It's not difficult once we know the basics 👍👍

[@KarthikSaakre]

After so many days, I came across this wonderful video and learnt one type of AOP :) Thank you very much!!!

[@CodeDecode]

Thanks Karthik 👍

[@anurani7084]

Thank you so much for making SPRING AOP so simple and easy to remember👏👏

[@CodeDecode]

Glad to be useful😊😊

[@LifeTracksVlogs]

After watching this video on AOP I don't need to watch any other video on AOP.. Great video mam 😀

[@CodeDecode]

Glad to hear that Amit 🙂👍

[@codewithsid1670]

I always have confusion in this but after watching your video I'm confident enough ❤️❤️

[@CodeDecode]

😊😊👍👍

[@user-cq2lx2qo6h]

Thank you for making such a informative video. Please cover all aspects if possible along with most frequently asked question from it. Thanks again.

[@CodeDecode]

Sure 😊😊👍👍

[@MattyDudeDizzle]

Underrated video. This video was VERY helpful. Thank you 🙏 ❤️

[@CodeDecode]

Thanks for the nice words

[@rajeshraju5060]

Yes, we are waiting for the next concepts

[@CodeDecode]

Sure Rajesh 👍

[@gourishparagi2240]

Very nice explanation about AOP concepts in simplest way..

[@CodeDecode]

Thanks

[@Vithal_Nivargi]

Thank you 🙏 waiting for next parts...

[@CodeDecode]

Thanks Sure 👍👍

[@gayatrideshpande5456]

Great video and great content. As usual superb . Just one suggestion, try to lower the keyboard typing sound as it breaks the link. Thank you.

[@CodeDecode]

Sure Gayatri 👍

[@ajayjayswal9139]

Yes next part as soon as possible

[@CodeDecode]

Sure Ajay 👍

[@dhirajmehta236]

Thank u so much your channel is like oxygen for us ❤

[@CodeDecode]

🙂🙂 glad to have you in code decode family dhiraj

[@pradeepsaradhivadapalli1128]

@codedecode where did you add the Spring AOP dependency?
I didn't see any dependency added in the pom.xml !

[@user-zd9gp8md1b]

explained in simple and easy way thanks maam

[@anujchawla2217]

Thanks a lot for this one. Part 2 please

[@CodeDecode]

Sure Anuj 🙂👍

[@technicalfarmer4462]

Thanks a lot 🙏

[@CodeDecode]

🙂🙂👍👍

[@thanipattavan]

Thanks a lot

[@CodeDecode]

You are welcome

[@abilashrs4133]

Wow, good explanation

[@CodeDecode]

Thanks 😊

[@sauravsinha956]

waiting for the next part.

[@CodeDecode]

Sure 👍

[@abirchaudhary6359]

You are legend

[@aashankapatle2751]

You are amazing mam ❤

[@CodeDecode]

Thanks Aashanka ❤️🙂

[@sasikala_chowdary]

Waiting for Next part

[@CodeDecode]

Sure 😊😊

[@balakrushnabehera2800]

Thank you ma'am ❤

[@CodeDecode]

🙂👍

[@baskar.k]

Please post the second part ❤

[@CodeDecode]

Sure we will upload it this week👍

[@manisshkhaparde7619]

Thanks

[@CodeDecode]

Thanks Manish 🙂👍

[@amarthyaseshu683]

Thanks

[@CodeDecode]

👍👍

[@argonechaks9850]

Please release further parts soon please

[@CodeDecode]

Sure 👍👍

[@manindersingh6371]

nice

[@CodeDecode]

Thanks

[@agni2020]

Getting Error " error at ::0 formal unbound in pointcut "
Please help me out with this.

[@ACseries_2023]

Hello Ma'am
Please make video on sonarQube

[@CodeDecode]

Sure we will create a video on Sonar Qube soon

[@ramcharanPhirangi]

We love you

[@CodeDecode]

☺️😊😊

[@armaanrajput2642]

From where i will get pdf of this??

[@rishiraj2548]

Good evening

[@CodeDecode]

Good evening Rishi 😊

[@HighlifeC]

Cakewalk. thanks

[@CodeDecode]

you're welcome

[@sasikala_chowdary]

If I remove the class name
Ex: If we give only " com.Codedecode. Aopapp. Service. *(..) "
Will it work for all service classes inside that package and all methods inside the service classes?

[@priyankpatel6644]

Error creating bean with name 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration': Pointcut is not well-formed: expecting ')' at character position 13
excecution(* com.codedecode.aopdemo.controller.*(..)