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Expertise in the Spring framework is highly sought after and will help open up a lot of job opportunities for you. Here you will get familiar with Spring 5 and Spring Boot 2 to add dependency injection into your applications.

You will start with the basics of Spring like dependency injection, auto-wiring, and constructor injection. After the basics are out of the way you’ll move onto Spring Boot, Spring MVC, Spring JDBC, and Spring Data JPA.

Lastly, you’ll delve into Spring’s support for AOP, unit testing, and the MVC architecture. By the end of this course you will have a wide set of tools to work with to create applications that have dependency injection and inversion of control.

The Complete Guide to Spring 5 and Spring Boot 2

# A custom annotation

An aspect can be used to track the execution time of a method that intercepts calls to a particular layer. Another approach could be to define a custom annotation on any method for which we want to track the execution time.
`spring-aop` allows us to create our own annotations and define aspects to implement them.

# Example


Suppose we want to call our annotation `@MeasureTime`. We will create this annotation in the same folder as the other aspects. This creates an interface:

Learn how to create our own annotation and use it in aspects to intercept method calls.

Defining a Custom Annotation for Aspects

Introduction

Spring Basics

Spring In-depth

Spring Boot

Spring JDBC

Spring Data JPA

Spring REST

Database Relationships in Spring

Spring Aspect Orientated Programming (AOP)

Spring MVC

Unit Testing in Spring

Interview Questions

Epilogue

Defining a Custom Annotation for Aspects

A custom annotation

Example