INTRODUCTION
If you are a Java developer and want to learn spring, then you came to the right place. In this article, I will share three ways to learn the Spring framework, but before that, we will understand what a spring framework is and why Java developers should learn the spring framework? Well, Spring is a framework that helps you develop Java applications by following some of the best practices, particularly the principle of dependency injection and control inversion. In accordance with this principle, instead of the class requesting its dependency, the framework provides at runtime. Following these principles improves the quality of your code, since it reduces the coupling between different parts of your applications. between modules and classes, which makes them easier to test and develop.
Due to this quality and several other useful features, Spring framework has become a standard way to develop Java applications, Java and Java Web applications, particularly using Spring MVC, which implements another popular MVC design standard to facilitate the development of Web applications using Java technologies.
When it comes to learning a new technology or a new framework, my 3-point action is to participate in a course, read a book and build a project. I have followed this principle to learn some things in recent years and it works very well.
Starting with a course give you a lot of need to get it because it is usually the start that is very difficult. At that time, you do not know how to set up projects, how to run them, what library is necessary, how to debug, how to check records, etc. After participating in a good course, you will have someone expert in this technology explaining these principles for you.
Once you have found your feet, it's time to dive into the background and start building projects and follow a book. In this way, you learn technology in depth, exploring yourself, instead of someone who leads as in a course.
Btw, like Java, spring is also wide. There are several modules, and. Spring Spring, Spring MVC, Spring Security, Spring Data and Spring Boot and you need to decide what you want to learn. As most developers want to learn the Spring MVC, I suggest you start with Spring Core first and follow the Spring MVC part.
Spring Core
Spring core is the central structure that provides the necessary vessel to implement dependency injection and control inversion. It also provides a useful library with many useful functionalities similar to the Apache Commons, but the most important thing is that you always need the spring kernel, because Spring MVC, Spring Security, everything is based on it.
Now the big question is what book to read and what course does it join? Well, when it comes to entering a course, you should always look for when it is updated for the last time and how many students have already adhered to it. That speaks a volume about the content and the popularity of the course and about this parameter, I found Spring Framework Master Class to be the best way to start.
It is reliable for more than 53,483 students and is also quite up to date. It also addresses the spring-in-depth framework, including Spring Core, Spring JDBC, Spring Boot, as well as how to configure and develop the Spring application using Eclipse, testing units and configuring the Spring application using Java and XML configuration. If you are starting with the frame of spring, then this is probably the best way to start.
When you get to the books, well, there are many books in the spring frame and I have read more than some, but the book I found most useful and updated is the Spring in Action 4th Edition, which covers the Spring 4.
This book covers most of the material related to spring, for example. Spring Core, Spring MVC and even some part of Spring Security, so I advise all Java developers who want to learn to read the book in this book.
Btw, if you already know Spring and are more interested in learning new reactive programming features introduced in Spring 5, then Spring Framework 5: Beginner to Guru is a better course. It is short and simple and can be updated quickly with Spring 5.
Spring MVC
Spring MVC is a structure to develop a web application using Java technology following the MVC design pattern, that is, the view control model. This provides a clear separation of functionality or concern, facilitating the development of a Java-based web application.
Once you have gone through the book and the course that I mentioned in the first section, you already have a good knowledge of Spring MVC, but if you want to learn in depth with some help in creating a single project, then the Spring MVC for beginners : Build Java Web App in 25 steps is a good place to start.
This course will teach you the Spring MVC, building a step-by-step project. Precisely, it will create a basic administration application of tasks per piece in 25 steps.
Spring Security
Spring Security is used to provide authentication and authorization support out of the box. As the majority of the Java web application needs the access control and access mechanism, you will find the Spring MVC and the Spring Security used together.
The structure is very sophisticated and provides several features to support authentication and authorization through a database, LDAP or any custom source.
The Spring in Action book of the 4th Edition addresses part of Spring Security, but does not provide full coverage, for example, it does not include OAuth or OAuth 2.0 and many advanced concepts that are addressed in the course of security safety security certification by Eugen Paraschiv.
If you are a beginner who is starting with the security of Spring or someone who already knows the security of Spring and wants to improve their knowledge about the security of Spring, this course is one of the most updated features. It was recently updated to also cover Spring Security 5.0.
Spring boot
He is one of the relatively new members of the Spring family. As the name suggests, this framework helps with the boot process. One of the most difficult things with Spring is to start with the set and the project, where you need to create a lot of XML configuration or use many annotations in Java classes and then create a WAR file and deploy it to a web server to run it.
There was not a simple way to start a Spring application exactly as a Java application starts by writing a main () method. The Spring boot solves this problem by simplifying the boot process.
It also provides options to incorporate a Web server for rapid development. In short, the Spring Boot offers all the power of the Spring Framework without all its complexity.
To begin, you can join the course Learn Spring Boot - Rapid Spring Application Development from Udemy, it is an excellent course with several practical examples. You not only learn Spring's initialization, but also Spring MVC to develop a web part, security to protect your application, JDBC to connect to the database and even learn how to exploit your services as REST.
Btw, if you are more interested in learning Spring Boot 2.0, the latest version of Spring Boot, then I suggest you take a look at Spring Framework 5: Beginner to Guru, which covers not only Spring 5, but also the Spring Boot two.
When it comes to books, I've only read Spring Boot in Action so far and I've found a great resource. I am planning to learn more books about Spring Boot and I will share if I find a good one.
It's about how you can learn the spring frame and its different parts, and. Spring Spring, Spring MVC, Spring Security and Spring Boot. As I said, it's very important for a Java developer to know the Spring to improve their chances of getting a better job or opportunity, and when you need to learn something new, the 3-point action, that is, join a course, Reading a book and building a project really workswell.
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