Spring MCQ and Answers Explained java Java MCQ MCQ Spring Spring Boot Spring Core Spring Security by devs5003 - May 25, 2023March 20, 20240 If you are a Java developer, you are expected to have a good understanding of Spring Framework Concepts, specifically in the programming part. Undoubtedly, Spring Boot is the popular framework in the industry. Spring Boot is built on top of Spring Framework itself. If you have a good hold on the Spring Framework, you will easily understand Spring Boot and work on it smoothly. In this article, we will refresh our concepts in the form of MCQs that are frequently asked in the interviews as well. Furthermore, you must also get benefit in the interviews from these Spring MCQ and Answers Explained. So, whether you are a beginner or a professional, solve these Spring MCQs to learn or refresh your concepts
Why is Spring framework so popular ? java Spring Spring Boot by devs5003 - May 21, 2023November 24, 20230 We have various frameworks in Java. Spring framework is most popular out of them. Some other commonly used frameworks are Struts, JSF, but Spring has already dominated all of them. Let's understand why is Spring framework so popular ?. At its core, the Spring Framework includes the principles of simplicity, modularity, and loose coupling. It provides developers with a unified programming model that simplifies the complexities of enterprise application development. With its popular dependency injection mechanism, Spring allows the creation of highly modular and testable code. It also makes developers free from the burden of managing complex dependencies manually. Before directly coming to 'Why is Spring Framework so Popular ?', let's first understand the basic terminology 'What is a Framework?'. What is
How to Save Data into Database Using Spring Data JPA : Step by Step Tutorial java Spring Spring Boot Spring Data JPA by devs5003 - May 21, 2023May 8, 20243 If we are developing a project using Spring Boot, we take help of Spring Data JPA to solve our database operations need. In this article we will go through "How to Save Data into Database Using Spring Data JPA : Step by Step Tutorial". If we are developing a project using Spring boot, saving data into the database is the mandatory topic to learn. Furthermore, we will go through step by step in this article. Also, we will save bulk data in a batch. Now let's start our exercise as "How to Save Data into Database Using Spring Data JPA : Step by Step Tutorial". Software Used ♦ STS (Spring Tool Suite) : (download link: https://spring.io/tools) ♠MySQL Database ♦ JDK 8 (Extremely Tested
Spring WebFlux CRUD Example java Spring Spring Boot Spring WebFlux by devs5003 - April 25, 2023February 27, 20240 All Java developers must have worked on traditional REST APIs at some point in their career. Other than the traditional approach of developing a REST API, now we have a new upgraded way of doing it. Reactive Programming as a new approach to working with REST APIs. Compared to traditional REST development, this approach is faster and offers for optimal resource utilization. In this article, we will work on the concepts of Spring WebFlux, which comes under the Reactive Programming model. Spring WebFlux is a reactive web framework built on top of Spring Framework 5, designed to handle the demands of modern web applications. Spring WebFlux provides a non-blocking and event-driven programming model that allows developers to build scalable and high-performance
Java Excel Apis To Read Excel File In Java Using Poiji API Spring Boot Excel java poiji by devs5003 - April 10, 2023February 11, 20242 Java Excel Apis to read excel file in Java using Poiji Almost every Java developer come across one of the most common requirements expected by the clients. The requirement is working with excel either to generate reports or to take input data from excel. As a java developer, we should be aware of the mapping between excel data & java objects. If we can have an API which can directly map excel cell to a field (property) of a java class, then it will become very easy to implement any kind of operation on excel. No surprise ! We have an API called Poiji(A Java Excel API). It is developed on top of very popular Apache POI just like Spring Boot on
Spring Boot MongoDB CRUD Example MongoDB java Spring Boot by devs5003 - April 8, 2023February 21, 20240 In continuation to MongoDB setup and how to work with Spring Boot in MongoDB, now in this article we will learn the most important DB operations. If we are in Software development world, we should at least know 'How to write CRUD operation on the database front'. Needless to say, how much importance these operations have. If you are developing any web application in any programming language, you can't escape from these operations. CRUD is nothing but an abbreviation to Create, Read, Update and Delete. Moreover, development of CRUD operations is expected from all developers. We will learn 'Spring Boot MongoDB CRUD Example' in this article. In order to implement CRUD Operations in Spring Boot with MongoDB, we will make use
Autowiring in Spring java Spring Spring Boot Spring Core by devs5003 - March 27, 2023December 19, 20230 If you are a Java developer, dependency Injection in Spring framework must not be the new term for you. One of the key features of Spring framework is dependency injection, which makes it easy to manage dependencies between objects. On the other hand, autowiring is a form of dependency injection in Spring that allows IOC container to automatically wire beans together without the need for explicit configuration. In this article, we'll explore autowiring in Spring, the different ways of doing it, its features, limitations, and how to use it effectively with ample amount of examples covering all the scenarios. Autowiring in Spring not only reduces boilerplate code but also simplifies maintenance and testing. However, while autowiring is a handy tool in
How to implement Redis Cache in Spring Boot Application? Redis java Spring Boot by devs5003 - March 24, 2023April 23, 20243 Many a time, we all come to a phase when our application does not perform well as it is expected to. Apart from several other solutions, we also look for a caching technique to make DB calls faster. In order to make it possible, we have Redis Cache technique in place. Redis cache helps us by minimizing the number of network calls while accessing the data from DB. Needless to say, our topic of discussion in this article is 'How to implement Redis Cache in Spring Boot Application?'. Spring Boot supports this feature via the dependency 'Spring Data Redis'. In addition, we need to download Redis Server to make Redis Cache functional in the Spring Boot Application. Moreover, apart from Cache,
MongoTemplate Spring Boot Example MongoDB java Spring Boot by devs5003 - March 7, 2023February 21, 20241 In continuation to series of tutorials on Spring Boot with MongoDB, we have already discussed various examples using MongoRepository interface. Now in this article we are going to discuss a different way of accessing data from MongoDB. This is nothing but MongoTemplate. MongoTemplate is defined by Spring Data MongoDB, used to perform DB operations without using any repository interface. If you are reading this article in context of Spring Boot, you must have heard about the term JDBCTemplate. Like JDBCTemplate, MongoTemplate is a class which provides us different handy methods to work on various DB operations. However, we generally use it to retrieve data from MongoDB using different Criteria queries. Hence, our topic here is to discuss is 'MongoTemplate Spring Boot
Spring Core Interview Questions java Spring Spring Boot Spring Core by devs5003 - February 28, 2023January 4, 20240 If you are preparing for a job interview in the field of Java development, it is essential to have a strong insight on Spring Core. Even being a Java developer, you must have Spring Boot knowledge to get shortlisted for a job interview. Furthermore, while working with a Spring Boot project, you must be using Spring Core Concepts. This article on 'Spring Core Interview Questions' will also benefit you as a Spring Core Concept refresher. Spring is one of the most popular Java frameworks, widely used in developing enterprise-level applications. The Spring Core module is the foundation of the Spring Framework, providing essential features such as dependency injection and inversion of control. In this article, we'll cover some essential Spring Core