Introducing full-stack Internet architecture technologies centered on Java
This step‑by‑step tutorial shows how to install Ollama, pull the DeepSeek‑R1 model, create a Spring Boot project with the Spring AI Ollama starter, code a ChatController, and test a local AI "Hello World" integration, illustrating AI‑enhanced backend development.
This article introduces essential AI concepts—including models, prompts and prompt templates, embeddings, tokens, structured output, and Retrieval‑Augmented Generation—explaining their meanings and relevance for effectively using Spring AI in real‑world applications.
The article announces the official release of Spring AI 1.0, explains the meaning of GA, provides the Maven dependency configuration, describes how Spring AI simplifies AI integration for Java applications, and outlines its key features and supported model types.
This article explains Kafka's event streaming concept, detailing events and streams, core components such as producers, topics, partitions, consumers, persistence, and typical real‑time data pipeline, event‑driven architecture, stream processing, and log aggregation use cases, highlighting its role as a foundational big‑data infrastructure.
This article explains how to create three Java threads that print the characters A, B, and C in strict order, repeat the sequence twenty times, and demonstrates three implementations—unordered printing, ordered printing with Semaphore, and a looped version—complete with full source code examples.
This tutorial walks through downloading, extracting, configuring, starting, creating topics, producing and consuming messages, and finally stopping Apache Kafka 3.8.1 on a Linux system, including all necessary command‑line instructions.
This guide provides step‑by‑step instructions for installing Docker Engine on a CentOS 7 system, including removal of any existing Docker packages, adding the Alibaba Cloud yum repository, installing required utilities, starting and enabling the Docker service, and verifying the installation.
This article demonstrates how Nginx’s default behavior ignores request headers containing underscores, causing missing parameters in a Spring Boot application, and shows how to configure the 'underscores_in_headers on;' directive to correctly forward such headers, with code examples and testing via Postman.
This article explains why Kafka is widely adopted by top companies, outlines its high throughput, scalability, and durability, and describes key real‑time data pipeline, stream processing, and big‑data integration scenarios, concluding that mastering Kafka is essential for modern backend and data engineering roles.
Redis clusters use two redirection commands—MOVED for permanently migrated hash slots and ASK for temporary redirects during slot migration—explaining their trigger conditions, typical scenarios, and step-by-step client interaction examples, including sample CLI output.
