Spring Free Material

• What is Spring?

One of the most important frameworks for application development in case of enterprise Java is Spring. A huge number of developers all around the world consider this framework for creating high performing codes which are easily testable as well as reusable. It is light in weight when it comes to size as well as transparency. Different Java applications can use the basic features of Spring framework. But certain extensions are available for building the web applications with respect to Java EE platform.

The Spring framework is majorly built on the J2EE technologies. This makes it immensely important to learn the J2EE technologies while reaching out to Spring framework. J2EE related technologies like servlet, etc. find its value in this case. Even the concepts of core Java like interface, abstract class, method overriding, etc. are important in the case of Spring framework. The main focus of Spring framework is to make the development of J2EE easier for consumers to use. The knowledge of J2EE becomes quite necessary while learning Spring framework. It also helps in promoting better practices for programming by enabling certain programming models. 

Some important features of Spring are:

1. It works for the designing as well as the management of the lifecycle and works for configuring the application objects. 
2. One of the best features of the Spring framework is that it does not solve the previously solved problems. It integrates with the other frameworks and solves greater problems. 
3. The feature of dependency injection helps the user to develop different loosely coupled applications. This helps in easier unit testing of these applications. 

2. Why Spring?

Spring serves many benefits. It is of great use and is completely user friendly. It has flexible libraries that are trusted by different developers all around the globe. The amazing experience that Spring framework provides to its users is commendable. It has countless unique and innovative solutions to a large number of technology related problems. 

The flexibility and comprehensiveness of the framework brings more demand from the user side. It provides the foundation for a large number of features and different functionalities. Spring acts as a wonderful tool when it comes to building secure cloud-based microservices for a certain web and also helps in streaming the complex flow of data for an enterprise. 

This user-friendly framework consists of the record for dealing with different security issues in a quick and responsible manner. The Spring committers along with the security experts test the vulnerabilities and patch these reported problems. 

It offers the best framework for fast, reliable and secure web application that is connected to any particular data store. 

Spring framework accepts as well as supports both XML along with the annotation-based configuration. Spring framework is said to be modular as it allows the user to use those parts that he/she needs. Choosing any of the parts in the framework in isolation is possible with respect to Spring. 

3. Important materials

• E-books – 

Beginning Spring Boot 2: Applications and microservices with the spring framework by K Siva Prasad Reddy – 

https://drive.google.com/file/d/1QcVDl_w-_5tuQS75fQb2ymMuHA3y6LmG/view?usp=sharing

Pro spring boot 2 by Felipe Gutierrez – 

https://drive.google.com/file/d/1you1RaKKMCcB92OEa5TLS-EwFbCgh6IH/view?usp=sharing

Learn microservices with spring boot by Moises Macero – 

https://drive.google.com/file/d/1HuySZxuYRpHFlrvpR_FujiwMS4lC24Fa/view?usp=sharing

• Videos – 

• What is the spring framework really all about? – https://youtu.be/gq4S-ovWVlM
• Spring full course – https://youtu.be/VvGjZgqojMc
• What is spring? – https://youtu.be/Spzug_SjJnM
• What is spring boot? – https://youtu.be/Ch163VfHtvA
• Introduction to spring framework in 10 minutes – https://youtu.be/6xB-uXqbOqo

4. Important tips for learning Spring 

There are certain important aspects that a person should look at while learning about Spring framework.

1. Before learning Spring framework, it is important to understand core Java as well as advanced Java. As Spring is basically used in the J2EE application, knowing all about Java is pretty significant. 
2. Spring is considered as a framework of frameworks. The individuals should have certain knowledge about Struts, hibernate etc., to understand the framework in a broader sense. 
3. The individuals looking forward to gaining knowledge about Spring framework should have proper insight about the database. This makes the learning procedure of the Spring framework quite interesting and effective. 
4. It is kind of important to understand the necessity of knowing how to write a servlet program as well as the configuration of a servlet.
5. It is good for the individuals to grab knowledge about the design patterns like strategy, singleton, factory, etc.