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 article objectively compares middleware‑based sharding solutions with native NewSQL distributed databases, examining their architectural differences, transaction handling, high‑availability, scaling, SQL support, storage engines, and maturity to help engineers decide which approach best fits their workload.
This guide explains multiple ways to roll back code that has already been pushed to a remote Git repository, covering manual comparison, the git revert command, creating a new branch, and using reset with force‑push while highlighting safety considerations.
IntelliJ IDEA 2025.3.1 rolls back the controversial Query File feature, fixes over 200 issues, and delivers crucial improvements for Windows + WSL, Spring, Kotlin‑MongoDB, Java debugging, terminal stability, and frontend tooling, making it a must‑upgrade for developers.
The article investigates a Java application that accumulated nearly a thousand waiting threads without high CPU or memory usage, identifies a custom FixedThreadPool as the cause, explains how thread pools become GC roots, and demonstrates that calling shutdown or shutdownNow properly releases both threads and the pool.
This guide walks you through installing the RustFS distributed object storage via Docker, using its visual console, and configuring a SpringBoot project to upload and delete files through the RustFS S3‑compatible API, complete with code snippets and practical screenshots.
This guide explains what Spring Task is, walks through three steps to set up scheduled jobs in Spring Boot, demystifies Cron expressions, showcases common use cases, offers advanced configuration tips, warns about pitfalls, and outlines performance‑tuning and future directions for reliable backend scheduling.
This guide compares common Java desktop packaging methods, evaluates their pros and cons, and demonstrates a custom Winform tool that bundles a Swing program and a minimal JRE into a single executable for easy distribution.
This tutorial demonstrates how MySQL LIMIT pagination performs on tables with millions of rows, measures query times for various offsets and batch sizes, and presents practical optimization techniques such as sub‑queries, ID‑range filtering, and column selection to improve speed.
This article explains how using UUIDs as primary keys in MySQL can degrade index efficiency, insert and query performance, and cause costly index refreshes on updates, then presents practical techniques such as ordered UUIDs, binary storage, hybrid keys, and partitioning to mitigate these issues.
This article provides a comprehensive guide to using Spring Boot's @ConfigurationProperties and @PropertySources annotations, covering their purpose, usage steps, code examples, and the differences between them for effective configuration management in Java backend applications.
