Focus on Java-related technologies: SSM, Spring ecosystem, microservices, MySQL, MyCat, clustering, distributed systems, middleware, Linux, networking, multithreading. Occasionally cover DevOps tools like Jenkins, Nexus, Docker, and ELK. Also share technical insights from time to time, committed to Java full-stack development!
An online payment outage was traced to a forgotten transaction commit in a Spring service, leading to polluted connections that silently blocked subsequent orders, and the article explains the root cause, debugging steps, quick fix, and preventive measures to avoid similar bugs.
This article examines the eight most difficult IT companies to join in China, detailing each firm's interview structure, algorithm and system‑design challenges, engineering‑practice questions, and offers concrete preparation formulas for both campus and experienced candidates.
This article explains OpenClaw’s architecture—Agent, Memory, RAG, Function Calling, MCP, and Skills—through a story, diagrams, and code examples, showing how the open‑source framework turns large language models into autonomous, configurable agents that can run locally.
The article introduces TOON, a token‑oriented data format that cuts JSON token usage by 30‑60%, and explains how the veteran Java serialization library json‑io has added full TOON support, offering zero‑config, cyclic‑reference handling, and seamless Spring Boot integration for cost‑effective LLM applications.
The article introduces The Agency, an open‑source collection of 55 specialized AI role definitions grouped into nine functional departments, explains how each Markdown file describes an agent’s identity, mission, workflow and deliverables, and shows two ways to use the agents with Claude Code or as generic prompt templates.
The article explains how large‑model AI can quickly generate functional code up to an 80% quality level, but its lack of product logic, context, boundaries and safety creates hidden bugs, making the new role of a “post‑processing engineer” essential for turning AI‑generated drafts into reliable, production‑ready software.
This article explains the fundamental differences between web session tokens and AI tokens, compares MCP and Skill token consumption, presents pricing formulas for major models, and offers practical strategies—including prompt compression, context management, and dynamic toolsets—to dramatically reduce AI token expenses.
The article analyzes MySQL's dwindling open‑source credibility, mounting security vulnerabilities, performance regressions, and Oracle's commercial lock‑in, contrasting it with MariaDB's transparent development and the growing migration of applications to MariaDB or PostgreSQL for better security and performance.
This article introduces AgentScope, Alibaba's open‑source Java multi‑agent framework, compares its design, advantages, and use cases with Spring AI Alibaba, showcases key features such as ReAct reasoning, built‑in RAG and memory, and provides quick‑start code examples and the project repository.
This article examines why Java is often labeled slow, dispels three major misconceptions about interpretation, garbage‑collection pauses, and startup time, presents concrete benchmark data against other languages, and explains how modern JVM features and framework choices actually shape performance.
