Spring Framework

title: Spring Framework Introduction description: Spring Framework kya hai aur kyun use karte hain

Java enterprise development ka most popular framework. Lightweight, non-invasive, flexible.

Spring kyun?

Boilerplate code reduce karta hai
Dependency Injection se loose coupling
Testing easy hoti hai
Huge ecosystem (Spring Boot, Security, Data, Cloud)

Core Concepts

IoC Container — Objects create aur manage karta hai
Dependency Injection — Dependencies inject karta hai
AOP — Cross-cutting concerns (logging, security)
Spring MVC — Web applications

Spring Modules

Spring Core (IoC, DI) Spring AOP Spring MVC Spring Data (JPA, MongoDB) Spring Security Spring Boot (Auto-configuration) Spring Cloud (Microservices)

Hello Spring (without Boot)

<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>6.1.0</version> </dependency>

java exampleWoHoTech

@Component
public class GreetingService {
    public String greet(String name) {
        return "Hello, " + name + "!";
    }
}

@Configuration
@ComponentScan("com.example")
public class AppConfig { }

// Main
ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class);
GreetingService service = ctx.getBean(GreetingService.class);
System.out.println(service.greet("Ram"));

title: Spring Framework Introduction description: Spring Framework kya hai aur kyun use karte hain

Java enterprise development ka most popular framework. Lightweight, non-invasive, flexible.

Spring kyun?

Boilerplate code reduce karta hai
Dependency Injection se loose coupling
Testing easy hoti hai
Huge ecosystem (Spring Boot, Security, Data, Cloud)

Core Concepts

IoC Container — Objects create aur manage karta hai
Dependency Injection — Dependencies inject karta hai
AOP — Cross-cutting concerns (logging, security)
Spring MVC — Web applications

Spring Modules

Spring Core (IoC, DI) Spring AOP Spring MVC Spring Data (JPA, MongoDB) Spring Security Spring Boot (Auto-configuration) Spring Cloud (Microservices)

Hello Spring (without Boot)

<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>6.1.0</version> </dependency>

java exampleWoHoTech

@Component
public class GreetingService {
    public String greet(String name) {
        return "Hello, " + name + "!";
    }
}

@Configuration
@ComponentScan("com.example")
public class AppConfig { }

// Main
ApplicationContext ctx = new AnnotationConfigApplicationContext(AppConfig.class);
GreetingService service = ctx.getBean(GreetingService.class);
System.out.println(service.greet("Ram"));

Spring Framework

Spring kyun?

Core Concepts

Spring Modules

Hello Spring (without Boot)

Continue learning this concept

Spring Framework

Spring kyun?

Core Concepts

Spring Modules

Hello Spring (without Boot)

Continue learning this concept