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Java Backend Technology

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!

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Latest from Java Backend Technology

100 recent articles max

Java Backend Technology

Jan 7, 2026 · Backend Development

Why Spring WebFlux Matters: From Blocking MVC to Reactive Non‑Blocking Architecture

The article explains the limitations of Spring MVC's blocking model, introduces Spring WebFlux's reactive, asynchronous, non‑blocking architecture, compares annotation and functional programming models, details core components and request flow, and provides guidance on when and how to adopt WebFlux for high‑concurrency I/O‑intensive applications.

FluxNon-blocking I/Obackend-architecture

0 likes · 13 min read

Why Spring WebFlux Matters: From Blocking MVC to Reactive Non‑Blocking Architecture

Java Backend Technology

Dec 24, 2025 · Databases

Why UUID Primary Keys Slow Down MySQL and How to Optimize Them

Using UUIDs as primary keys in MySQL can dramatically degrade performance on large tables due to larger index size, random inserts causing index splits, slower comparisons, and costly index refreshes on updates, but the impact can be mitigated with ordered UUIDs, binary storage, hybrid keys, or table partitioning.

MySQLPrimary KeyUUID

0 likes · 8 min read

Why UUID Primary Keys Slow Down MySQL and How to Optimize Them

Java Backend Technology

Dec 19, 2025 · Artificial Intelligence

Top AI‑Powered Code Assistants: Features, Installation & Best Combinations

This guide reviews the most popular AI code‑generation tools—including GitHub Copilot, Amazon CodeWhisperer, Tabnine, and domestic alternatives—detailing their features, ideal use cases, installation steps, advantages, caveats, practical results, and recommended tool combinations for individual developers, teams, and cloud projects.

AI Code AssistantAmazon CodeWhispererBito

0 likes · 8 min read

Top AI‑Powered Code Assistants: Features, Installation & Best Combinations

Java Backend Technology

Dec 4, 2025 · Databases

Mastering Database Indexes: 10 Essential Q&A for Faster Queries

This guide walks developers through the fundamentals of database indexes, explaining why they matter, how they work, common pitfalls, and best‑practice design tips with concrete SQL examples and visual illustrations.

B+TreeCovering IndexDatabase Indexes

0 likes · 10 min read

Mastering Database Indexes: 10 Essential Q&A for Faster Queries

Java Backend Technology

Dec 1, 2025 · Databases

Mastering MySQL Full‑Text Search: Index Types, Queries, and Best Practices

This guide explains how MySQL InnoDB full‑text search works, covering inverted indexes, index creation, query syntax for natural language, boolean, and query‑expansion modes, relevance calculation, and index maintenance.

Boolean ModeInverted IndexMySQL

0 likes · 11 min read

Mastering MySQL Full‑Text Search: Index Types, Queries, and Best Practices

Java Backend Technology

Nov 26, 2025 · Backend Development

Building a High‑Concurrency Train Ticket Spike System with Nginx Load Balancing and Redis

This article explains how to design a high‑concurrency ticket‑spike service that can handle millions of requests by using multi‑layer load balancing, Nginx weighted round‑robin, local stock caching, and atomic Redis operations, complete with Go code examples and performance testing.

High ConcurrencyNginxRedis

0 likes · 18 min read

Building a High‑Concurrency Train Ticket Spike System with Nginx Load Balancing and Redis

Java Backend Technology

Nov 20, 2025 · Databases

MySQL Auto‑Increment Hits INT Limit: Diagnosis, Fixes, and Performance Lessons

A massive MySQL table with billions of rows ran out of INT auto‑increment IDs, causing insert failures; the article walks through the root cause analysis, three migration strategies, practical BIGINT conversion steps, performance monitoring tricks, and lessons learned about schema design and concurrency.

BIGINT migrationINT overflowMySQL

0 likes · 9 min read

MySQL Auto‑Increment Hits INT Limit: Diagnosis, Fixes, and Performance Lessons

Java Backend Technology

Nov 19, 2025 · Backend Development

How to Slash Spring Boot Startup Time by 70% with 7 Proven Optimizations

This article presents a step‑by‑step guide that combines lazy bean initialization, precise component scanning, JVM flag tuning, auto‑configuration exclusion, class‑loading analysis, delayed datasource creation, and AOT/layered compilation to reduce Spring Boot startup latency by up to 70% in real‑world services.

AOT compilationJVM tuningcomponent-scan

0 likes · 10 min read

How to Slash Spring Boot Startup Time by 70% with 7 Proven Optimizations

Java Backend Technology

Nov 17, 2025 · Databases

Why a Single MySQL Connection Can Cost Over 200 ms – A Deep Dive

This article examines the detailed steps and timing of establishing a MySQL connection from a Java web application, measuring network round‑trips and total latency, and demonstrates how even a minimal connection can consume hundreds of milliseconds, making connection pooling essential for high‑traffic services.

Connection PoolDatabase ConnectionJava

0 likes · 8 min read

Why a Single MySQL Connection Can Cost Over 200 ms – A Deep Dive

Java Backend Technology

Nov 13, 2025 · Backend Development

Why Fast‑Retry Outperforms Spring‑Retry for Million‑Task Scenarios

Fast‑Retry is a high‑performance asynchronous retry framework that can handle millions of tasks with far lower latency than traditional synchronous retry libraries like Spring‑Retry or Guava‑Retry, thanks to its non‑blocking design, customizable retry logic, and support for both programmatic and annotation‑based usage.

AsyncJavaSpring

0 likes · 11 min read

Why Fast‑Retry Outperforms Spring‑Retry for Million‑Task Scenarios