Spring MCQ and Answers Explained java Java MCQ MCQ Spring Spring Boot Spring Core Spring Security by devs5003 - May 25, 2023November 14, 20250 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. Additionally, you must also get benefitted 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
How to Save Data into Database Using Spring Data JPA : Step by Step Tutorial java JPA Spring Spring Boot Spring Data JPA by devs5003 - May 21, 2023April 7, 20263 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
Autowiring in Spring java Spring Spring Boot Spring Core by devs5003 - March 27, 2023January 22, 20260 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
MongoTemplate Spring Boot Example MongoDB java Spring Boot by devs5003 - March 7, 2023April 9, 20262 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 22, 20260 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
How to implement Security in Spring Boot Project? Spring Boot java Spring Spring Boot 3 by devs5003 - February 19, 2023April 7, 20265 Now a days, almost every client demands for implementation of powerful security feature in real time application. Demand of security feature is very valid to maintain confidentiality, integrity and availability. There are many types of security in the real world, but we as a developer will focus on the Application/Software Security. Furthermore, in Application Security, our job is to ensure basically two things. First, only valid user can access the application. Second, If the user is valid, he/she can access only permitted data/information in that application. I consider, there is nothing to explain more about them as you must already be aware of these two terminologies i.e. Authentication & Authorization. You might already have guessed what we will discuss in our
What is Bean in Spring | Spring Bean Explained java Spring Spring Boot Spring Core by devs5003 - January 10, 2023November 15, 20250 Every Java Developer come across the terms Java Bean, Bean Class & Spring Bean. Most of the times people think that all are the same and used interchangeably. Even sometimes people consider them as a simple POJO class. In fact, these all have some logical differences. There is some set of standards & guidelines provided by Programmers that makes them different from each other. In this article 'What is Bean in Spring?', we will start with the fundamentals which are also essential to know, then we will discuss the Spring Bean with examples. Please note that if you define a class that doesn't follow the guidelines of being a Spring Bean, the Java compiler will never complain you. In contrast, the
New Features In Spring Framework 6 java Spring Spring Boot Spring Boot 3 Spring Core by devs5003 - December 31, 2022October 11, 20230 Spring Framework 6, released on November 2022, is the major version change and containing many upgraded features and changes into the Spring development environment. On the other hand, Spring Boot 3 also released on November 2022, is based on Spring Framework 6, also changes a lot of things. We need to know about the changes in new versions in order to make smooth development of an application in the future. In this article, we will discuss about ‘New Features in Spring Framework 6’. Spring Boot 3.0 is also the first Spring Boot GA release, which is based on the Spring Framework 6.0. As a developer, we need to be aware of these updates in order to work smoothly with Spring Framework.
How to write REST Consumer API using Spring Boot RestTemplate java RestTemplate Spring Spring Boot by devs5003 - December 30, 2022July 2, 20250 Apart from three well known layers i.e. Presentation Layer, Service Layer and Data Layer, we may also have an Integration Layer. This layer generally works with the web services concept and connects two different applications to exchange data between them. One application refers to producer/provider, whereas other refers to consumers. However, we have already gone through the REST Producer API in another article where we had developed different operations to produce REST API. Now, we must have a question in mind 'How to write REST Consumer API using Spring Boot RestTemplate'. We had also discussed a bit about RestTemplate( The Spring REST Client). In fact, RestTemplate provides us Consumer methods to consume services provided by producer applications. We can even have
Elasticsearch with Spring Boot Using Spring Data Elasticsearch CRUD Examples Elasticsearch java Spring Boot by devs5003 - November 16, 2022May 1, 20251 spring data elasticsearch examplespring data elasticsearch exampleIn this article, we will learn how to develop 'Spring Data Elasticsearch CRUD Examples Using Elasticsearch with Spring Boot'. We will start with the basics of Elasticseach as a theoretical part. In practical part we are going to discuss how to setup Elasticsearch in our system and make it ready to work. Then, we will move to the development of our example. Apart from CRUD operation with UI, we will also get into 'How to create a REST API using Elasticsearch with Spring Boot. What is Elasticsearch? Elasticsearch provides the capability to store, search, and analyze huge volumes of both structured and unstructured data. It primarily works on the concept of indexing. Since it also capable