Spring Tutorial
This Spring tutorial is designed for both beginners and experienced professionals. Learn all the fundamental and advanced topics of Spring Framework, such as the basics of Spring, Spring Boot, Spring MVC, Spring JDBC, Spring AOP, Spring Security, and more.
In this free Spring tutorial, you’ll learn how to leverage Spring’s robust infrastructure to build scalable, high-performing applications. We will cover essential topics such as dependency injection, aspect-oriented programming, and Spring MVC for web development. Additionally, you’ll gain hands-on experience with practical examples and real-world projects, ensuring you can apply your new knowledge effectively.
What is Spring Framework?
Spring is a lightweight and popular open-source Java-based framework developed by Rod Johnson in 2003. It is used to develop enterprise-level applications. It provides support to many other frameworks such as Hibernate, Tapestry, EJB, JSF, Struts, etc, so it is also called a framework of frameworks. It’s an application framework and IOC (Inversion of Control) container for the Java platform. The spring contains several modules like IOC, AOP, DAO, Context, WEB MVC, etc.
Why to use Spring?
Spring framework is a Java platform that is open source. Rod Johnson created it, and it was first released under the Apache 2.0 license in June 2003. When it comes to size and transparency, Spring is a featherweight. Spring framework’s basic version is about 2MB in size. The Spring Framework’s core capabilities can be used to create any Java program, however there are modifications for constructing web applications on top of the Java EE platform. By offering a POJO-based programming model, the Spring framework aims to make J2EE development easier to use and to promote good programming habits.
Applications of Spring
POJO Based
Spring allows developers to use POJOs to create enterprise-class apps. The advantage of using simply POJOs is that you don’t require an EJB container product like an application server; instead, you may use a powerful servlet container like Tomcat or a commercial product.
Modular
Spring is set up in a modular approach. Even if there are a lot of packages and classes, you only need to worry about the ones you need and ignore the rest.
Integration with existing frameworks
Spring does not reinvent the wheel; rather, it makes extensive use of existing technologies such as numerous ORM frameworks, logging frameworks, JEE, Quartz, and JDK timers, and other view technologies.
Testablity
Because environment-dependent code is put into this framework, testing a Spring-written application is trivial. Furthermore, using JavaBeanstyle POJOs makes it easier to employ dependency injection for injecting test data.
Web MVC
Spring’s web framework is a well-designed web MVC framework that is an excellent alternative to web frameworks like Struts and other over-engineered or less popular web frameworks.
Central Exception Handling
Spring provides a handy API for converting technology-specific exceptions (such as those raised by JDBC, Hibernate, or JDO) into consistent, unchecked exceptions.
Lightweight
IoC containers are typically lightweight, especially when compared to EJB containers, for example. This is useful for creating and distributing programmes on systems with limited memory and CPU resources.
Spring Tutorial Index
Basics of Spring Framework
- Introduction to Spring Framework
- Spring Framework Architecture
- 10 Reasons to Use Spring Framework in Projects
- Spring Initializr
- Difference Between Spring DAO vs Spring ORM vs Spring JDBC
- Top 10 Most Common Spring Framework Mistakes
- Spring vs. Struts in Java
Software Setup and Configuration (STS/Eclipse/IntelliJ)
- How to Download and Install Spring Tool Suite (Spring Tools 4 for Eclipse) IDE?
- How to Create and Setup Spring Boot Project in Spring Tool Suite?
- How to Create a Spring Boot Project with IntelliJ IDEA?
- How to Create and Setup Spring Boot Project in Eclipse IDE?
- How to Create a Dynamic Web Project in Eclipse/Spring Tool Suite?
- How to Run Your First Spring Boot Application in IntelliJ IDEA?
- How to Run Your First Spring Boot Application in Spring Tool Suite?
- How to Turn on Code Suggestion in Eclipse or Spring Tool Suite?
Core Spring
- Understanding Inversion of Control with Example
- Spring – BeanFactory
- Spring – ApplicationContext
- Spring – Difference Between BeanFactory and ApplicationContext
- Spring Dependency Injection with Example
- Spring – Difference Between Inversion of Control and Dependency Injection
- Spring – Injecting Objects By Constructor Injection
- Spring – Setter Injection with Map
- Spring – Dependency Injection with Factory Method
- Spring – Dependency Injection by Setter Method
- Spring – Setter Injection with Non-String Map
- Spring – Constructor Injection with Non-String Map
- Spring – Constructor Injection with Map
- Spring – Setter Injection with Dependent Object
- Spring – Constructor Injection with Dependent Object
- Spring – Setter Injection with Collection
- Spring – Setter Injection with Non-String Collection
- Spring – Constructor Injection with Collection
- Spring – Injecting Objects by Setter Injection
- Spring – Injecting Literal Values By Setter Injection
- Spring – Injecting Literal Values By Constructor Injection
- Bean life cycle in Java Spring
- Custom Bean Scope in Spring
- How to Create a Spring Bean in 3 Different Ways?
- Spring – IoC Container
- Spring – Autowiring
- Singleton and Prototype Bean Scopes in Java Spring
- How to Configure Dispatcher Servlet in web.xml File?
- Spring – Configure Dispatcher Servlet in Three Different Ways
- How to Configure Dispatcher Servlet in Just Two Lines of Code in Spring?
- Spring – When to Use Factory Design Pattern Instead of Dependency Injection
- How to Create a Simple Spring Application?
- Spring – init() and destroy() Methods with Example
- Spring WebApplicationInitializer with Example
- Spring – Project Modules
- Spring – Remoting by HTTP Invoker
- Spring – Expression Language(SpEL)
- Spring – Variable in SpEL
- What is Ambiguous Mapping in Spring?
- Spring – Add New Query Parameters in GET Call Through Configurations
- Spring – Integrate HornetQ
- Remoting in Spring Framework
- Spring – Application Events
- Spring c-namespace with Example
- Parse Nested User-Defined Functions using Spring Expression Language (SpEL)
- Spring – AbstractRoutingDataSource
- Circular Dependencies in Spring
- Spring – ResourceLoaderAware with Example
- Spring Framework Standalone Collections
- How to Create a Project using Spring and Struts 2?
- Spring – Perform Update Operation in CRUD
- How to Transfer Data in Spring using DTO?
- Spring – Resource Bundle Message Source (i18n)
- Spring Application Without Any .xml Configuration
- Spring – BeanPostProcessor
- Spring and JAXB Integration
- Spring – Difference Between Dependency Injection and Factory Pattern
- Spring – REST Pagination
- Spring – Remoting By Burlap
- Spring – Remoting By Hessian
- Spring with Castor Example
- Spring – REST XML Response
- Spring – Inheriting Bean
- Spring – Change DispatcherServlet Context Configuration File Name
- Spring – JMS Integration
- Spring – Difference Between RowMapper and ResultSetExtractor
- Spring with Xstream
- Spring – RowMapper Interface with Example
- Spring – util:constant
- Spring – Static Factory Method
- Spring – FactoryBean
- Difference between EJB and Spring
- Annotations
- Spring Framework Annotations
- Spring Core Annotations
- Spring Stereotype Annotations
- Spring @Bean Annotation with Example
- Spring @Controller Annotation with Example
- Spring @Value Annotation with Example
- Spring @Configuration Annotation with Example
- Spring @ComponentScan Annotation with Example
- Spring @Qualifier Annotation with Example
- Spring @Service Annotation with Example
- Spring @Repository Annotation with Example
- Spring @Required Annotation
- Spring @Component Annotation with Example
- Spring @Autowired Annotation
- Spring @PostConstruct and @PreDestroy Annotation with Example
- Spring @PropertySource Annotation and Resource Interface
- Spring @Scope Annotation to Set a POJO’s Scope
- Spring @Required Annotation with Example
Spring Boot
- Introduction to Spring Boot
- Best Way to Master Spring Boot – A Complete Roadmap
- How to Create a Spring Boot Project?
- How to Create a Spring Boot Project with IntelliJ IDEA?
- How to Run Your First Spring Boot Application in Spring Tool Suite?
- Spring Boot – Annotations
- Spring Boot – Architecture
- Spring Boot Actuator
- How to Make a Project Using Spring Boot, MySQL, Spring Data JPA, and Maven?
- Spring Boot – Introduction to RESTful Web Services
- How to create a basic application in Java Spring Boot
- How to create a REST API using Java Spring Boot
- Easiest Way to Create REST API using Spring Boot
- Java Spring Boot Microservices Sample Project
- Difference between Spring MVC and Spring Boot
- Spring Boot – Spring JDBC vs Spring Data JDBC
- Best Practices For Structuring Spring Boot Application
- Spring Boot – Start/Stop a Kafka Listener Dynamically
- How to Dockerize a spring boot application with maven
- Dynamic Dropdown From Database using Spring Boot
- Spring – RestTemplate
- Spring Boot – Scheduling
- Spring Boot – Sending Email via SMTP
- Different Ways to Establish Communication Between Spring Microservices
- JSON using Jackson in REST API Implementation with Spring Boot
- How to encrypt passwords in a Spring Boot project using Jasypt
- Containerizing Java applications | Creating a Spring Boot App using Dockerfile
- How to Send Images in Spring Boot without using Servlet and Redundant JSP Codes?
- How to Create Todo List API using Spring Boot and MySQL?
- Spring Boot – Transaction Management Using @Transactional Annotation
- Spring Boot – Map Entity to DTO using ModelMapper
- Spring Boot – How to consume JSON messages using Apache Kafka
- Spring Boot – How to consume string messages using Apache Kafka
- Spring Boot – How to publish String messages on Apache Kafka
- Spring Boot – How to publish JSON messages on Apache Kafka
- Spring Boot – Consume JSON Object From Kafka Topics
- Spring Boot Kafka Producer Example
- Spring Boot Kafka Consumer Example
- Message Compression in Apache Kafka using Spring Boot
- Spring Boot – Create and Configure Topics in Apache Kafka
- How to Test Spring Boot Project using ZeroCode?
- Validation in Spring Boot
- Spring Boot – Validation using Hibernate Validator
- How to Connect MongoDB with Spring Boot?
- Spring Boot – File Handling
- Spring Boot MockMVC Testing with Example Project
- Spring Boot Integration With MySQL as a Maven Project
- Spring Boot Integration With MongoDB as a Maven Project
- Spring Boot MockMVC Example
- Spring Boot Integration With PostgreSQL as a Maven Project
- Spring Boot JPA Sample Maven Project With Query Methods
- Spring Boot – Service Class Example for Displaying Response Codes and Custom Error Codes
- Spring Boot – Create a Custom Auto-Configuration
- Spring Boot – Consume Message Through Kafka, Save into ElasticSearch, and Plot into Grafana
- How to Implement AOP in Spring Boot Application?
- Spring Boot – AOP(Aspect Oriented Programming)
- Spring Boot – Cache Provider
- Spring Boot – AOP Around Advice
- Spring Boot – Auto-configuration
- Spring Boot – EhCaching
- Difference Between Spring Boot Starter Web and Spring Boot Starter Tomcat
- Spring Boot Actuator
- Spring Boot – Starter Test
- Spring Boot – Exception Handling
- Spring Boot – Project Deployment Using Tomcat
- Spring Boot – Difference Between AOP and OOP
- Spring Boot – Difference Between AOP and AspectJ
- Spring Boot – Logging
- Advantages of Spring Boot JDBC
- Spring Boot – Packaging
- Spring Boot – JDBC
- Spring Boot – AOP After Throwing Advice
- Spring Boot – AOP After Returning Advice
- Spring Boot – Multi-Module Project
- Spring Boot – AOP After Advice
- Spring Boot – AOP Before Advice
- Spring Boot – DevTools
- Spring Boot – Dependency Management
- Spring Boot – Caching
- Spring Boot – Starter Web
- Spring Boot – Difference Between @Service Annotation and @Repository Annotation
- Unit Testing in Spring Boot Project using Mockito and Junit
- Spring Boot – Thymeleaf with Example
- Spring Boot – MongoRepository with Example
- Spring Boot – Integrating Hibernate and JPA
- Spring Boot JpaRepository with Example
- Spring Boot – CRUD Operations using MongoDB
- Spring Boot – Spring Data JPA
- Upload Multiple Files in Spring Boot using JPA, Thymeleaf, Multipart
- Spring Boot – Difference Between CrudRepository and JpaRepository
- Spring Boot – CrudRepository with Example
- Spring Boot – application.yml/application.yaml File
- Spring Boot – CRUD Operations using MySQL Database
- How to Implement One to Many Mapping in Spring Boot?
- How to Run Your First Spring Boot Application in Eclipse IDE?
- How to Run Spring Boot Application?
- Spring Boot – Application Properties
- Spring Boot – H2 Database
- Spring Boot – CRUD Operations
- Spring Boot – REST Example
- How to Run Your First Spring Boot Application in IntelliJ IDEA?
- Spring Boot – Change Port
- Spring Boot – Hello World Example
- What is Command Line Runner Interface in Spring Boot?
- How to Create and Setup Spring Boot Project in Eclipse IDE?
- How to Create and Setup Spring Boot Project in Spring Tool Suite?
- How to Make a Simple RestController in Spring Boot?
- How to Implement Simple Authentication in Spring Boot?
- What is PathVariable in the Spring Boot?
- How to Create a Spring Boot Project in Spring Initializr and Run it in IntelliJ IDEA?
- How to Get the Body of Request in Spring Boot?
- How to Make Put Request in Spring Boot?
- Deploying Spring Boot Application with MySQL Database on Azure
- How to Call or Consume External API in Spring Boot?
- Spring Boot – Starter Parent
- Spring Boot – Customize the Jackson ObjectMapper
- Spring Boot – Starters
- Spring Boot – Code Structure
Spring MVC
- Introduction to Spring MVC
- Spring MVC using Java-based configuration
- ViewResolver in Spring MVC
- How to Create Your First Model in Spring MVC?
- How to Create Your First View in Spring MVC?
- Spring MVC CRUD with Example
- Create and Run Your First Spring MVC Controller in Eclipse/Spring Tool Suite
- What is Dispatcher Servlet in Spring?
- Spring – Shortcut to Create Dispatcher Servlet in Eclipse/Spring Tool Suite
- WebApplicationContext in Spring MVC
- Spring – Multi Action Controller with Example
- Spring MVC – Exception Handling
- Spring – How to Load Literal Values From Properties File
- Spring MVC – Multiple View Page
- Spring MVC – Custom Validation
- Difference Between ApplicationContext and WebApplicationContext in Spring MVC
- Difference Between @Component, @Repository, @Service, and @Controller Annotations in Spring
- Difference Between @Controller and @Service Annotation in Spring
- Difference Between @Controller and @RestController Annotation in Spring
- Spring MVC – RequestParam Annotation
- Query String and Query Parameter in Spring MVC
- How to Make Post Request in Java Spring?
- How to Make Delete Request in Spring?
- How to Make get() Method Request in Java Spring?
- Spring @RequestMapping Annotation with Example
- How to Capture Data using @RequestParam Annotation in Spring?
- Spring @ResponseBody Annotation with Example
- Spring MVC Project – Retrieving Population, Area and Region Details using Rest API
- Spring MVC – Last 24-Hour Cryptocurrency Data using REST API
- Spring MVC – Sample Project For Finding Doctors Online with MySQL
- Spring MVC JSTL Configuration
- Spring MVC with MySQL – Sample Project For Calculating Electricity Bill
- Spring MVC – Comparison of Cryptocurrencies using REST API
- Spring MVC – Get Probability of a Gender by Providing a Name using REST API
- Get Time Zone by Providing Latitude and Longitude using Spring MVC and REST API
- Spring MVC with MySQL and Junit – Finding Employees Based on Location
- Spring MVC – Get University/College Details via REST API
- Spring MVC – JSTL forEach Tag with Example
- Spring MVC – Iterating List on JSP using JSTL
- Two-Way Data Binding in Spring MVC with Example
- Spring MVC – Basic Example using JSTL
- Spring MVC @ModelAttribute Annotation with Example
- Data Transfer Object (DTO) in Spring MVC with Example
- Spring MVC – Capture and Display the Data from Registration Form
- Spring MVC – Create Registration Form using Form Tag Library
- Data Binding in Spring MVC with Example
- Spring MVC – Pagination with Example
- Spring MVC Integration with MySQL
- OpenSource REST API URL and Retrieving Data From it By Using Spring MVC
- How to Resolve WEB xml is missing and failOnMissingWebXml is set to true in Eclipse/STS?
- Spring MVC Application Without web.xml File
- Spring MVC – Listbox
- Spring MVC – Multiple Resolver Mapping
- How to Extract TV Show Details via REST API and Spring MVC?
- Spring MVC File Upload
- Spring MVC – Tiles
- Spring MVC – Text Box
- Spring MVC – Multiple Controller
- Spring MVC – Model Interface
- Spring MVC – Number Validation
- Spring MVC – Form Checkbox
- Spring MVC – Form Radio Button
- Spring MVC – Form Drop-Down List
- Spring MVC – TextArea
- Spring MVC – Hidden Field
- Spring MVC – Regular Expression Validation
- Spring MVC – Password
- Spring MVC – Form Tag Library
- Spring MVC – Form Text Field
- Spring MVC – Validation
- Spring MVC – Form Handling
- How to Create a Project using Spring MVC and Hibernate 5?
- Spring MVC – Getting Cryptocurrency Details using REST API
- Spring MVC – Get Exchange Rate Values using REST API
Spring with REST API
- Spring REST JSON Response
- Spring – REST XML Response
- Spring – REST Controller
- Spring MVC – Getting Cryptocurrency Details using REST API
- Spring MVC – Get Exchange Rate Values using REST API
- Spring Boot – Introduction to RESTful Web Services
- How to create a REST API using Java Spring Boot
- Easiest Way to Create REST API using Spring Boot
- JSON using Jackson in REST API Implementation with Spring Boot
- How to Make a Simple RestController in Spring Boot?
- Spring MVC Project – Retrieving Population, Area and Region Details using Rest API
- Spring MVC – Last 24 Hour Cryptocurrency Data using REST API
- Spring MVC – Comparison of Cryptocurrencies using REST API
- Spring MVC – Get Probability of a Gender by Providing a Name using REST API
- Get Time Zone by Providing Latitude and Longitude using Spring MVC and REST API
- Spring MVC – Get University/College Details via REST API
- OpenSource REST API URL and Retrieving Data From it By Using Spring MVC
- How to Extract TV Show Details via REST API and Spring MVC?
- Spring MVC – Getting Cryptocurrency Details using REST API
- Spring MVC – Get Exchange Rate Values using REST API
- Spring Boot – Introduction to RESTful Web Services
- How to create a basic application in Java Spring Boot
- How to create a REST API using Java Spring Boot
- Easiest Way to Create REST API using Spring Boot
- Spring – RestTemplate
- JSON using Jackson in REST API Implementation with Spring Boot
- Spring Boot – REST Example
- How to Make a Simple RestController in Spring Boot?
- Difference Between @Controller and @RestController Annotation in Spring
- Spring MVC Project – Retrieving Population, Area and Region Details using Rest API
- Spring MVC – Last 24 Hour Cryptocurrency Data using REST API
- Spring MVC – Comparison of Cryptocurrencies using REST API
- Spring MVC – Get Probability of a Gender by Providing a Name using REST API
- Get Time Zone by Providing Latitude and Longitude using Spring MVC and REST API
- Spring MVC – Get University/College Details via REST API
- OpenSource REST API URL and Retrieving Data From it By Using Spring MVC
- How to Extract TV Show Details via REST API and Spring MVC?
- Spring MVC – Getting Cryptocurrency Details using REST API
- Spring MVC – Get Exchange Rate Values using REST API
Spring Data
- What is Spring Data JPA?
- JPA vs Hibernate
- Spring Data JPA – Find Records From MySQL
- Spring Data JPA – Delete Records From MySQL
- Spring Data JPA – @Table Annotation
- Spring Data JPA – Insert Data in MySQL Table
- Spring Data JPA – Attributes of @Column Annotation with Example
- Spring Data JPA – @Column Annotation
- Spring Data JPA – @Id Annotation
- Introduction to the Spring Data Framework
- How to access database using Spring Data JPA
- How to Make a Project Using Spring Boot, MySQL, Spring Data JPA, and Maven?
- Spring Boot – Integrating Hibernate and JPA
- Spring Boot JpaRepository with Example
- Spring Boot – Spring Data JPA
Spring JDBC
- Spring JDBC Template
- Spring JDBC Example
- Spring – SimpleJDBCTemplate with Example
- Spring – Prepared Statement JDBC Template
- Spring – NamedParameterJdbcTemplate
- Spring – Using SQL Scripts with Spring JDBC + JPA + HSQLDB
- Spring – ResultSetExtractor
Spring ORM or Spring Hibernate
- Spring Hibernate Configuration and Create a Table in the Database
- Hibernate Lifecycle
- JPA vs Hibernate
- Spring ORM Example using Hibernate
- Spring Boot – Validation using Hibernate Validator
- How to Create a Project Using Spring MVC and Hibernate 5?
- Hibernate – One-to-One Mapping
- Spring Boot – Integrating Hibernate and JPA
- Hibernate – Cache Eviction with Example
- Hibernate – Cache Expiration
- Hibernate – Enable and Implement First and Second Level Cache
- Hibernate – Save Images and Other Types of Values to the Database
- Hibernate – Pagination
- Hibernate – Different Cascade Types
- Hibernate Native SQL Query with Example
- Hibernate – Caching
- Hibernate – @Embeddable and @Embedded Annotation
- Hibernate – Eager/Lazy Loading
- Hibernate – get() and load() Method
- Hibernate Validator with Example
- CRUD Operations using Hibernate
- Hibernate Example without IDE
- Hibernate – Inheritance Mapping
- Automatic Table Creation Using Hibernate
- Hibernate – Batch Processing
- Hibernate – Component Mapping
- Hibernate – Mapping List
- Hibernate – Collection Mapping
- Hibernate – Bag Mapping
- Hibernate – Difference Between List and Bag Mapping
- Hibernate – SortedSet Mapping
- Hibernate – SortedMap Mapping
- Hibernate – Native SQL
- Hibernate – Logging by Log4j using XML File
- Hibernate – Many-to-One Mapping
- Hibernate – Logging By Log4j Using Properties File
- Hibernate – Table Per Concrete Class Using Annotation
- Hibernate – Table Per Subclass using Annotation
- Hibernate – Interceptors
- Hibernate – Many-to-Many Mapping
- Hibernate – Types of Mapping
- Hibernate – Criteria Queries
- Hibernate – Table Per Hierarchy using Annotation
- Hibernate – Table Per Subclass Example using XML File
- Hibernate – Table Per Hierarchy using XML File
- Hibernate – Create POJO Classes
- Hibernate – Web Application
- Hibernate – Table Per Concrete Class using XML File
- Hibernate – Generator Classes
- Hibernate – SQL Dialects
- Hibernate – Query Language
- Hibernate – Difference Between ORM and JDBC
- Hibernate – Annotations
- Hibernate Example using XML in Eclipse
- Hibernate – Create Hibernate Configuration File with the Help of Plugin
- Hibernate Example using JPA and MySQL
- Hibernate – One-to-Many Mapping
Spring AOP
- Aspect-Oriented Programming and AOP in Spring Framework
- Spring Boot – AOP Around Advice
- Spring Boot – AOP(Aspect Oriented Programming)
- How to Implement AOP in Spring Boot Application?
- Spring AOP – Example (Spring1.2 Old Style AOP)
- Spring AOP – AspectJ Xml Configuration
- Spring AOP – AspectJ Annotation
- Usage of @Before, @After, @Around, @AfterReturning, and @AfterThrowing in a Single Spring AOP Project
- How to Implement AOP in Spring Boot Application?
- Spring Boot – AOP(Aspect Oriented Programming)
- Spring Boot – Cache Provider
- Spring Boot – AOP Around Advice
- Spring Boot – Difference Between AOP and OOP
- Spring Boot – Difference Between AOP and AspectJ
- Spring Boot – AOP After Throwing Advice
- Spring Boot – AOP After Returning Advice
- Spring Boot – AOP After Advice
- Spring Boot – AOP Before Advice
Spring Security
- Introduction to Spring Security and its Features
- Some Important Terms in Spring Security
- OAuth2 Authentication with Spring and Github
- Spring Security at Method Level
- Spring Security JSP Tag Library
- Spring Security Form-Based Authentication
- Spring Security – Remember Me
- Spring Security XML
- Spring Security Project Example using Java Configuration
- How to Change Default User and Password in Spring Security?
- Spring – Add Roles in Spring Security
- Spring – Add User Name and Password in Spring Security
Advantages of Spring
- Predefined Templates
- Loose Coupling
- Lightweight
- Fast Development
- Powerful abstraction
- Declarative support
Conclusion
The world of Spring is vast, and there’s always more to explore and learn. Keep experimenting with new features, stay updated with the latest Spring advancements, and apply your knowledge to real-world projects. The skills you’ve gained will not only enhance your current projects but also open up new opportunities in your development career.
FAQs on Java Spring
Q1: What is spring used for?
Spring provides infrastructure support for developing Java applications.
Q2: Why use Spring in Java?
Java applications are complex and heavy-weight components. improves coding efficiency and reduces development time. The components are dependent on the operating system (OS) for their appearance and properties.
Q3: How to use Spring in Java?
You need to follow five simple steps:
- Create the Bean. java class.
- Create a XML/ configuration file.
- Create the main class.
- Load the required jar files.
- Run the application.
Q4: What are Spring Beans?
Spring Beans are the objects forming the backbone of the user’s application and are managed by the Spring IoC container. They are created with the configuration metadata that the users supply to the container. These are instantiated, configured, wired, and managed by the IoC container.