Overview

Spring vs Spring Core vs Spring Boot

Code Structure Overview

Project Setup Using STS

Spring Boot Using Initilizr

Internal Working

IoC and Application Context

Dependency Injection

Annotation Part1

Annotation Part2

@ComponentScan

@Component

@Configuration

@Conditional

@Bean

@Service

Starter

Actuator

Interceptor

Application Properties

Profiles

AOP With Example

AOP AfterThrowing

Scheduling

Thymeleaf

Port Change

Form Validation

RESTful Web Services

JSP a a View

Session Management

MySQL + JPA Implementation

Form Submission – JPA

User Authentication

JSTL Integration

Security

@Service Annotation

@Service annotation is a class level annotation and implicitly a subtype of @Component annotation due to which internally gets detect at the time of component scan.

Service class mainly gets use to write business logic or service layer components.

Follow below steps to create service class using @service annotation:

Access EmployeeService class using application context as shown below:

Dependency Injection

@Service beans can get inject in other beans using @Autowired annotation as shown below:

In above code, StudentService automatically got injected into SchoolService.

Imran Khan, Adobe Community Advisor, AEM certified developer and Java Geek, is an experienced AEM developer with over 12 years of expertise in designing and implementing robust web applications. He leverages Adobe Experience Manager, Analytics, and Target to create dynamic digital experiences. Imran possesses extensive expertise in J2EE, Sightly, Struts 2.0, Spring, Hibernate, JPA, React, HTML, jQuery, and JavaScript.

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