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 guide explains what mvnd is, how to download and install it, configure Maven and environment variables, fix PowerShell encoding issues, and presents a detailed performance comparison showing multi‑module builds can be up to 5.5× faster than using traditional Maven.
MyPerf4J is an open‑source, high‑performance Java monitoring and statistics tool that uses a JavaAgent for zero‑intrusion, records up to ten million method calls per second with nanosecond precision, and provides real‑time metrics such as QPS, latency percentiles, memory and GC stats, making it ideal for both development and production environments.
This guide compares three free MySQL client tools—DBeaver, MySQL Workbench, and HeidiSQL—detailing their download links, installation steps, language settings, and key features such as multi‑database support, built‑in monitoring, and ER‑diagram capabilities, helping you choose the best replacement for Navicat.
This article explains how a simple CSS mask‑image technique—using a single mask picture and a few style rules—can replicate Bilibili’s subtitle effect that avoids covering on‑screen characters, includes a complete demo, performance notes, and links to related CSS properties.
SQL injection lets attackers turn simple input fields into destructive commands that can delete or compromise databases; the article explains how string‑concatenated queries become vulnerable, demonstrates the attack step‑by‑step, and shows how parameterized queries via PreparedStatement and MyBatis’ #{ } syntax, plus defense‑in‑depth measures, effectively mitigate the risk.
Learn why logging is essential in Java applications, explore Spring Boot’s built‑in SLF4J framework, discover how to print, configure levels, persist logs, customize formats, manage file rotation, and simplify logging with Lombok, all through clear examples and practical guidance.
This article explains how deep pagination in Elasticsearch triggers costly scatter‑gather queries that overload CPU, memory, and network, and it presents practical alternatives such as the scroll API and search_after to achieve efficient, real‑time pagination for large datasets.
This article introduces four popular open‑source projects—Varia, a unified download manager; GKD, an Android ad‑skipping tool; Paper2Video, which converts academic papers into presentation videos using AI; and WeKnora, Tencent's enterprise‑grade LLM‑powered knowledge‑base platform—providing brief overviews, installation steps, and key features.
This article explains why @Transactional fails in multithreaded MySQL insert scenarios, demonstrates how to split large data sets, configure a thread pool, and use SqlSession with manual commit to guarantee atomicity across parallel threads, complete with runnable code examples and test results.
This guide walks through setting up ZLMediaKit in Docker, configuring FFmpeg, creating a Spring Boot backend with streaming APIs, and building a front‑end FLV player, providing a complete end‑to‑end solution for live video streaming and playback.
