Focusing on Java backend development, covering application architecture from top-tier internet companies (high availability, high performance, high stability), big data, machine learning, Java architecture, and other popular fields.
This tutorial explains how tldb implements distributed locks, detailing the lock, trylock, and unlock methods, their parameters, and usage examples in Go and Java, including Maven configuration, spin‑wait techniques, and performance test results with illustrative images.
This guide explains how Redis, a high‑performance in‑memory database, works with the RedisInsight visual tool, covering its key features, step‑by‑step installation on Linux, environment‑variable configuration, service startup, Kubernetes deployment via YAML, and basic usage for monitoring, data manipulation, and memory analysis.
This article introduces a Maven aggregation plugin for IntelliJ IDEA that automates the creation of multi‑module Java projects, detailing its core features, installation methods, step‑by‑step usage, customization options, and troubleshooting tips to dramatically reduce setup time.
When a core order table with tens of millions of rows needs a new column, naïve ALTER TABLE can lock the table and cause outages, so this article explores master‑slave switching, online schema‑change tools, JSON or redundant fields, and practical tips for low‑risk, production‑grade schema evolution.
This tutorial walks through converting a SpringBoot + MybatisPlus application from MySQL to PostgreSQL, covering driver addition, JDBC configuration, schema differences, numerous SQL incompatibilities, transaction quirks, and provides helper scripts for bulk type changes and default timestamp settings, while highlighting practical solutions.
This article introduces T‑Shell, an intelligent Windows‑only command‑line terminal that integrates SSH, SFTP, customizable themes, and shortcut commands, and provides step‑by‑step installation, build, and usage instructions along with visual tutorials and global variable support.
This article explains a step‑by‑step approach to load external JAR files into the JVM, configure Spring Boot to recognize the new classes, and choose among classpath expansion, Spring Boot's loader.path, or a custom ClassLoader, complete with Maven settings and code examples.
This article examines Docker's diminishing universality, its historical impact, current limitations, and emerging alternatives such as lightweight runtimes, micro‑Kubernetes, and serverless platforms, guiding developers toward more efficient, secure, and adaptable container strategies for 2025 and beyond.
This guide explains how to create a dynamic IP blacklist that blocks malicious crawlers or users by rejecting requests from listed IPs, supports configurable expiration, and is implemented using Nginx (OpenResty), Lua scripts, and Redis for shared, lightweight, and scalable protection.
This article explains how to automate the handling of common entity fields such as creation time, update time, and user identifiers in Java backend services by using MyBatis-Plus automatic filling, custom AOP aspects, multi‑data‑source configuration, distributed ID generation, and auditing techniques, dramatically reducing boiler‑plate code and bugs.
