Former Ant Group P8 engineer, pure technologist, sharing full‑stack Java, job interview and career advice through a column. Site: java-family.cn
This tutorial explains how to integrate Lua scripts with Spring Boot and Redis, covering Lua fundamentals, advantages, real‑world use cases, step‑by‑step implementation in Spring Boot, performance gains, error handling, security measures, and best practices for reliable backend development.
This article walks through integrating the open‑source Flowable BPM engine into a Spring Boot 3 application, covering Maven dependencies, YAML datasource and Flowable settings, thread‑pool configuration, process modeling with the Flowable UI, deployment, and APIs for starting, querying, completing, and rejecting workflow instances, all illustrated with code snippets and screenshots.
This article walks through various Java retry mechanisms—including manual loops, static and dynamic proxies, AOP, Spring Retry annotations, and Guava‑retry—explaining their implementations, advantages, drawbacks, and when to choose each approach for robust remote service calls.
This guide walks you through preparing the environment, installing ZLMediaKit via Docker, configuring FFmpeg, implementing a Spring Boot backend to control streaming processes, and using a simple HTML player with flv.js to publish and view live video streams.
This article walks through the motivation, design, implementation, and best‑practice deployment of a Spring Boot hot‑patch system that lets developers dynamically load and apply patches to beans, classes, and methods in production within minutes, avoiding lengthy release cycles.
This article analyzes a real‑world case where a circular dependency between Spring Boot microservices caused repeated SocketTimeoutException errors, explains the underlying deadlock mechanism, and provides a step‑by‑step verification and code fix to eliminate the issue.
This article presents a complete Java‑based architecture for high‑throughput Doris stream loading, covering project structure, Maven dependencies, configuration properties, field‑mapping annotations, automatic mapper utilities, a robust parallel loader with retry and compression, plus performance tuning recommendations.
This article details a step‑by‑step optimization of a large‑scale Excel import workflow, covering the transition from raw POI to EasyExcel, caching database lookups, batch INSERT statements, and parallel stream processing to reduce a 100k‑row import from minutes to under two minutes.
An unexpected NullPointerException occurs when adding a simple log line to a Java DTO, revealing that FastJSON’s serialization process invokes methods like isChinaName(), getXxx(), and isXxx() via ASM-generated serializers, and the article explains the underlying mechanism, common pitfalls, and best‑practice annotations to avoid such bugs.
This article explains how separating business rules from code using a dynamic rule engine—implemented with Spring Boot, QLExpress, and a simple HTML/Tailwind front‑end—enables rapid, low‑risk rule changes for e‑commerce, finance, and content platforms, illustrated with full code examples and real‑world scenarios.
