Reactive Programming

Java Architect Essentials

Apr 27, 2025 · Backend Development

Concept-Download: A Spring‑Based Library for Simplified File Download, Compression and Reactive Streaming

This article introduces a Spring‑compatible download library that lets developers annotate a single method to download arbitrary objects—files, HTTP resources, or custom objects—while handling caching, concurrent loading, compression, and reactive response writing for both MVC and WebFlux environments.

AnnotationReactive ProgrammingSpring

0 likes · 14 min read

Concept-Download: A Spring‑Based Library for Simplified File Download, Compression and Reactive Streaming

Spring Full-Stack Practical Cases

Apr 12, 2025 · Backend Development

Deep Dive into Spring Cloud Gateway: Core Components and Source Code Walkthrough

This article provides a comprehensive walkthrough of Spring Cloud Gateway, covering its core concepts, architecture, key components such as Route, Predicate, and Filter, and detailed source‑code analysis with configuration examples and the underlying HTTP handling flow.

Backend DevelopmentReactive ProgrammingSpring Cloud Gateway

0 likes · 15 min read

Deep Dive into Spring Cloud Gateway: Core Components and Source Code Walkthrough

Java Architecture Diary

Feb 7, 2025 · Artificial Intelligence

Unlock DeepSeek R1’s Full Potential in Spring with deepseek4j

This article introduces deepseek4j, a Spring‑Boot‑compatible library that fully supports DeepSeek R1’s chain‑of‑thought and billing features, offering reactive streaming, easy configuration, and a built‑in debugging page, with step‑by‑step setup and code examples to help developers quickly integrate the model.

AI integrationDeepSeekOpenAI4J

0 likes · 6 min read

Unlock DeepSeek R1’s Full Potential in Spring with deepseek4j

Rare Earth Juejin Tech Community

Oct 25, 2024 · Mobile Development

Understanding Flutter State Management and Provider: Concepts, Built‑in Options, and Practical Usage

This article explains the concept of state in Flutter, distinguishes local and global state, reviews built‑in state‑handling mechanisms such as setState and InheritedWidget, outlines criteria for selecting a state‑management library, and provides a step‑by‑step guide with code examples for using the Provider package, including advanced features like MultiProvider, FutureProvider, Selector, and the underlying implementation details of InheritedProvider.

DartFlutterProvider

0 likes · 22 min read

Understanding Flutter State Management and Provider: Concepts, Built‑in Options, and Practical Usage

Rare Earth Juejin Tech Community

May 30, 2024 · Backend Development

Implementing a Typing Effect with Spring WebFlux and Server‑Sent Events

This article explains how to use Spring WebFlux's reactive, non‑blocking model to create a server‑sent events (SSE) endpoint that streams text data, and demonstrates a front‑end Vue implementation that splits the stream into characters to produce a realistic typing animation.

Reactive ProgrammingSSESpring Boot

0 likes · 17 min read

Implementing a Typing Effect with Spring WebFlux and Server‑Sent Events

Architect

May 18, 2024 · Backend Development

Building a Microservice Gateway with Spring Cloud Gateway

This article explains what a microservice gateway is, outlines the advantages of Spring Cloud Gateway, and provides step‑by‑step instructions with code examples to create, configure, and run a reactive API gateway for Java microservices.

API GatewayBackend DevelopmentReactive Programming

0 likes · 7 min read

Building a Microservice Gateway with Spring Cloud Gateway

Spring Full-Stack Practical Cases

Apr 26, 2024 · Backend Development

Mastering RSocket with Spring Boot 2.7: Protocol Basics, Interaction Patterns, and Real‑World Code

This article introduces the RSocket binary protocol, explains its four interaction models, highlights key features such as back‑pressure and lease, and provides step‑by‑step Spring Boot 2.7 examples for Request‑Response, Request‑Stream, Channel, and Fire‑and‑Forget communication.

RSocketReactive ProgrammingSpring Boot

0 likes · 11 min read

Mastering RSocket with Spring Boot 2.7: Protocol Basics, Interaction Patterns, and Real‑World Code

Selected Java Interview Questions

Mar 4, 2024 · Backend Development

Spring Cloud Gateway: A Step‑by‑Step Guide to Building a Scalable Microservice Gateway

This article introduces Spring Cloud Gateway as a powerful tool for building scalable microservice gateways, explains its reactive architecture and advantages, and provides a step‑by‑step tutorial—including Maven dependency, route configuration, custom filter code, and deployment instructions—plus suggestions for advanced features.

API GatewayReactive ProgrammingSpring Cloud Gateway

0 likes · 8 min read

Spring Cloud Gateway: A Step‑by‑Step Guide to Building a Scalable Microservice Gateway

37 Interactive Technology Team

Feb 21, 2024 · Fundamentals

Deconstructing Asynchronous Programming

The article breaks down modern asynchronous programming by examining four core models—callbacks, Promises, reactive observer patterns, and message‑driven architectures—explaining their mechanics, pros and cons, and providing JavaScript/Dart examples and system diagrams to help developers master non‑blocking concurrency.

Async/AwaitAsynchronous ProgrammingCallbacks

0 likes · 26 min read

Spring Full-Stack Practical Cases

Feb 16, 2024 · Backend Development

Master Reactive Database Access with Spring Data R2DBC: 1‑to‑1 & 1‑to‑Many Examples

This article demonstrates how to use Spring Data R2DBC with Spring Boot 3 to perform reactive 1‑to‑1 and 1‑to‑many database operations, covering environment setup, entity definitions, repository queries, custom converters, and unit testing for full‑stack backend development.

DatabaseReactive ProgrammingSpring Boot

0 likes · 13 min read

Master Reactive Database Access with Spring Data R2DBC: 1‑to‑1 & 1‑to‑Many Examples

Architect

Jan 10, 2024 · Backend Development

Design and Performance Optimization of a Custom API Gateway (DAG)

This article presents a comprehensive analysis of the limitations of Spring Cloud Gateway, proposes a self‑developed API gateway architecture called DAG, details its core components such as request context, filter chain, async client, routing, and connection management, and demonstrates through extensive performance testing that DAG achieves significantly higher throughput, lower latency, and improved stability compared to the original SCG solution.

API GatewayNettyPerformance Optimization

0 likes · 39 min read

Design and Performance Optimization of a Custom API Gateway (DAG)

Spring Full-Stack Practical Cases

Dec 14, 2023 · Backend Development

Master Reactive Database Access with Spring Boot WebFlux and R2DBC

Learn how to integrate Spring Boot WebFlux with R2DBC for reactive database operations, covering R2DBC basics, driver selection, configuration, entity and service implementation, controller endpoints, repository usage, optimistic locking, and practical code examples to build high-performance, non-blocking backend applications.

Backend DevelopmentReactive ProgrammingSpring Boot

0 likes · 9 min read

Master Reactive Database Access with Spring Boot WebFlux and R2DBC

Bitu Technology

Dec 8, 2023 · Backend Development

JDK Virtual Threads: The Ultimate Solution for Java Concurrency – Insights from the Scala & Java Meetup

The article recaps a Scala & Java meetup where experts discussed the challenges of traditional Java threading, introduced JDK virtual threads as a low‑overhead concurrency solution, examined their benefits and limitations, and explored the impact of virtual threads on Scala and reactive programming.

JDKReactive ProgrammingVirtual Threads

0 likes · 9 min read

JDK Virtual Threads: The Ultimate Solution for Java Concurrency – Insights from the Scala & Java Meetup

Spring Full-Stack Practical Cases

Nov 26, 2023 · Backend Development

Mastering Project Reactor: Mono & Flux Basics with Practical Code

Learn the fundamentals of Project Reactor’s Mono and Flux, including creation, subscription, error handling, and common operators, with detailed code examples and visual diagrams, enabling you to effectively implement reactive, asynchronous streams in WebFlux-based Java backend applications.

Backend DevelopmentFluxMono

0 likes · 11 min read

Mastering Project Reactor: Mono & Flux Basics with Practical Code

Selected Java Interview Questions

Oct 23, 2023 · Backend Development

Why RestTemplate Is Deprecated and How to Migrate to Spring WebClient

This article explains why Spring's RestTemplate has been deprecated, outlines the advantages of the non‑blocking WebClient, and provides detailed migration examples—including GET, POST, error handling, streaming, retries, custom configurations, and best‑practice guidelines for using WebClient in backend development.

Backend DevelopmentReactive ProgrammingSpring

0 likes · 16 min read

Why RestTemplate Is Deprecated and How to Migrate to Spring WebClient

Spring Full-Stack Practical Cases

Sep 21, 2023 · Backend Development

Mastering Spring Data R2DBC: Reactive Database Access in Spring Boot

This guide explains how to set up Spring Data R2DBC with Spring Boot, covering driver selection, dependency configuration, application properties, entity definitions, CRUD services, controllers, repository usage, and optimistic locking for reactive relational database interactions.

Database AccessOptimistic LockingReactive Programming

0 likes · 9 min read

Mastering Spring Data R2DBC: Reactive Database Access in Spring Boot

Selected Java Interview Questions

Aug 28, 2023 · Backend Development

Concept-Download: A Backend Library for Simplified File Download in Spring

This article introduces the Concept-Download library, explains how a single @Download annotation can handle various download sources—including files, HTTP URLs, and custom objects—by leveraging reactive programming, handler chains, source factories, concurrent loading, compression, and unified response writing for both Spring MVC and WebFlux.

Backend DevelopmentReactive ProgrammingSpring

0 likes · 16 min read

Concept-Download: A Backend Library for Simplified File Download in Spring

DeWu Technology

Aug 9, 2023 · Backend Development

Design and Performance Optimization of a Custom API Gateway

To overcome Spring Cloud Gateway’s memory leaks, slow O(N) routing and complex reactive code, the team built a custom, thread‑per‑core Netty gateway with in‑memory O(1) route lookup, DAG‑based filter chains and an asynchronous client, delivering four‑times higher throughput (≈45 k QPS), ~19 ms ART, no leaks, and far‑reduced latency.

API GatewayNettyPerformance Optimization

0 likes · 41 min read

Design and Performance Optimization of a Custom API Gateway

Architecture Digest

Jun 28, 2023 · Backend Development

Introduction to Spring WebFlux and Reactive Programming

This article introduces Spring WebFlux as a reactive, non‑blocking web framework built on Spring 5, explains the concepts of reactive programming, compares it with Spring MVC, and provides practical code examples and guidance on when to choose WebFlux for Java backend development.

Backend DevelopmentFluxMono

0 likes · 7 min read

Introduction to Spring WebFlux and Reactive Programming

Qunar Tech Salon

Jun 27, 2023 · Backend Development

Refactoring the Supplier‑Product‑Adapter (SPA) System Using DDD and Spring WebFlux

This article presents a comprehensive case study of the SPA system used by Qunar, detailing its business and technical complexity, the adoption of Domain‑Driven Design and an adapter‑based architecture, the migration to Spring WebFlux for reactive asynchronous processing, and the measurable improvements achieved after refactoring.

DDDReactive ProgrammingSpring WebFlux

0 likes · 21 min read

Refactoring the Supplier‑Product‑Adapter (SPA) System Using DDD and Spring WebFlux