Java Framework Learning Roadmap: Best Practices in Different Domains

Java framework learning roadmap for different fields: Web development: Spring Boot and Play Framework. Persistence layer: Hibernate and JPA. Server-side reactive programming: Reactor Core and Spring WebFlux. Real-time computing: Apache Storm and Apache Spark. Cloud Computing: AWS SDK for Java and Google Cloud Java.

Java Framework Learning Roadmap: Best Practices in Different Domains

Java is widely used in enterprise application development A language with a rich framework ecology. Choosing the right framework is critical to successfully delivering your project. This article will provide a clear learning roadmap to guide you to choose the best Java framework in different fields.

Web Development

• Spring Boot: A lightweight, scalable microservices framework. It simplifies configuration, dependency management and testing.
• Play Framework: A full-stack framework that provides support for rapid development of high-performance web applications.

Practical case: Building a Spring Boot driven RESTful API

@RestController
@RequestMapping("/api/users")
public class UserController {

    @GetMapping
    public ResponseEntity<List<User>> getAllUsers() {
        // 获取所有用户
        List<User> users = userRepository.findAll();
        return ResponseEntity.ok(users);
    }

    @PostMapping
    public ResponseEntity<User> createUser(@RequestBody User user) {
        // 创建新用户
        User newUser = userRepository.save(user);
        return ResponseEntity.ok(newUser);
    }

}

Persistence layer

• Hibernate: An object-relational mapping (ORM) framework for simplifying interaction with databases.
• JPA (Java Persistence API): A standard interface that provides a consistent persistence layer abstraction across different ORM frameworks.

Practical case: Using JPA to query the database

TypedQuery<User> query = entityManager.createQuery(
        "SELECT u FROM User u WHERE u.name = :name", User.class);
query.setParameter("name", "John Doe");
List<User> users = query.getResultList();

Server-side responsive programming

• Reactor Core: A reactive programming library that provides concepts such as streams, publishers and subscribers.
• Spring WebFlux: A Spring framework extension built on Reactor Core for building non-blocking web applications.

Real-time computing

• Apache Storm: A distributed real-time computing framework for processing big data streams.
• Apache Spark: A unified analysis engine that supports batch processing and real-time calculations.

Cloud Computing

• AWS SDK for Java: Official for interacting with the Amazon Web Services (AWS) platform SDK.
• Google Cloud Java: The official SDK for interacting with the Google Cloud Platform (GCP) platform.

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