Spring Framework continues to evolve in 2025! This blog highlights the latest features, especially around HTTP client side support, and how they empower modern Java web development.
📋 Table of Contents
🌱 Spring 2025 Overview
- Spring Framework 6.x and Boot 3.x focus on cloud-native, reactive, and modular architectures.
- Improved support for GraalVM native images.
- Enhanced security and observability features.
🔗 HTTP Client Side Support
- WebClient: The preferred non-blocking, reactive HTTP client for REST APIs.
- RestTemplate: Still supported for legacy apps, but WebClient is recommended for new projects.
- New features: HTTP/2 support, connection pooling, better error handling, and improved integration with OAuth2/OpenID.
🆕 New Features & APIs
- Declarative HTTP clients (like Feign) with Spring Cloud integration.
- Improved support for multipart requests and streaming responses.
- Enhanced test utilities for HTTP clients.
- Native support for JSON, XML, and Protocol Buffers.
✅ Best Practices
- Prefer WebClient for new development.
- Use connection pooling and timeouts for robust HTTP calls.
- Handle errors gracefully and log responses.
- Secure API calls with OAuth2/OpenID Connect.
💡 Code Examples
// WebClient example
WebClient webClient = WebClient.create();
String result = webClient.get()
.uri("https://api.example.com/data")
.retrieve()
.bodyToMono(String.class)
.block();
// RestTemplate example
RestTemplate restTemplate = new RestTemplate();
String response = restTemplate.getForObject("https://api.example.com/data", String.class);
📚 Resources
- Spring Official Docs
- Spring Boot Guides
- Visible Campus Courses & Webinars
- GitHub, Stack Overflow, Community Forums
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