Скачать или смотреть SPRING BOOT PROJECT SESSION -2

The Spring Framework is a comprehensive and modular framework for building enterprise-level Java applications. It is widely used for developing robust, scalable, and secure applications with features such as dependency injection, aspect-oriented programming, and transaction management. Spring simplifies the development of Java applications by providing abstractions and eliminating boilerplate code.
Steps to Create a Spring Project
1. Using Spring Boot
Go to Spring Initializr.
Select the following:
Project: Maven/Gradle.
Language: Java.
Spring Boot Version: Latest stable release.
Dependencies: Add relevant modules like Spring Web, Spring Data JPA, H2 Database, or Spring Security.
Generate and download the project.
Import the project into your IDE (e.g., IntelliJ IDEA, Eclipse).
2. Manually Setting Up a Spring Project
Add Spring dependencies to your pom.xml (Maven) or build.gradle (Gradle).
Configure Spring application context using XML or Java-based configuration.
Set up a web.xml file (if using legacy deployment) or Spring Boot configuration for modern projects.
Example of a Simple Spring Boot Application
Main Application
java
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@SpringBootApplication
public class SpringDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringDemoApplication.class, args);
}
}
Controller
java
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@RestController
public class HelloController {
@GetMapping("/hello")
public String sayHello() {
return "Hello, Spring!";
}
}
Application Properties
properties
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server.port=8081
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=password
With this basic setup, you can create a fully functional Spring application. The Spring ecosystem provides a flexible and powerful foundation for building modern Java applications.













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