Dedicated to Java tech sharing and dissecting top open-source projects. Topics include Spring Boot, Spring Cloud, Docker, Kubernetes and more. Author’s GitHub project “mall” has 50K+ stars.
This guide explains how to build a complete multi‑dimensional network bandwidth throttling solution in Spring Boot 3 using a custom token‑bucket algorithm, HandlerInterceptor, HttpServletResponseWrapper, and RateLimitedOutputStream to precisely control download, video streaming, and API traffic.
IntelliJ IDEA 2025.3.1 introduced severe Maven project freezes, OOM crashes, and WSL2 configuration loss, but JetBrains quickly released 2025.3.1.1 with fixes and provides temporary work‑arounds such as clearing Maven caches, disabling file‑icon rendering, and adjusting a registry flag.
WeKnora is an open‑source Tencent framework that combines large language models with retrieval‑augmented generation to enable fast, accurate semantic search and question answering across heterogeneous documents such as PDFs, Word files, and images, offering a modular, extensible architecture and easy Docker‑based deployment.
This guide explains why InnoDB fuzzy queries lose indexes, introduces MySQL full‑text search with inverted indexes, shows how to create and use full‑text indexes via CREATE TABLE and ALTER statements, and demonstrates natural language, boolean, and query‑expansion modes with practical SQL examples.
This guide introduces the open‑source fuzzy finder fzf, explains its key features, shows how to install it across platforms, and provides practical examples—including basic pipelines, shell shortcuts, and preview‑enhanced commands—to dramatically speed up everyday terminal workflows.
This guide explains why parameter validation is crucial for Spring Boot applications and walks through ten practical techniques—including built‑in annotations, custom constraints, server‑side checks, meaningful error messages, i18n, validation groups, cross‑field validation, exception handling, testing, and client‑side considerations—to help developers build robust, secure APIs.
This article compares three popular Java security frameworks—Spring Security, Apache Shiro, and Sa‑Token—by examining their architecture, advantages, drawbacks, typical use cases, and providing a detailed side‑by‑side comparison to help developers make an informed framework selection.
This article introduces LiteMonitor, an open‑source Windows desktop tool that provides real‑time CPU, GPU, memory, disk, and network monitoring with a sleek, customizable UI, explains its key features, installation steps, usage tips, and where to find the source code.
The latest IntelliJ IDEA update merged free and paid editions, yet many developers are abandoning it for VS Code because AI‑powered extensions, lower cost, lighter footprint, and broader language support better match the evolving, AI‑driven software development workflow.
This guide introduces AgentScope, a multi‑agent framework for Java that brings ReAct reasoning, tool calling, memory management, RAG, and serverless capabilities to LLM‑powered applications, and provides step‑by‑step code examples for basic and advanced usage.
