Java Captain
Author

Java Captain

Focused on Java technologies: SSM, the Spring ecosystem, microservices, MySQL, MyCat, clustering, distributed systems, middleware, Linux, networking, multithreading; occasionally covers DevOps tools like Jenkins, Nexus, Docker, ELK; shares practical tech insights and is dedicated to full‑stack Java development.

1.2k
Articles
0
Likes
2.5k
Views
0
Comments
Recent Articles

Latest from Java Captain

100 recent articles max
Java Captain
Java Captain
Jun 11, 2025 · Backend Development

How to Import Modules and Build JAR Files in IntelliJ IDEA

This step‑by‑step guide shows how to create an IntelliJ IDEA project, import a Java module into it, associate the module with the project, and then package the application into a JAR file using the IDE’s Project Structure and Artifacts settings.

IDE tutorialIntelliJ IDEAJar packaging
0 likes · 6 min read
How to Import Modules and Build JAR Files in IntelliJ IDEA
Java Captain
Java Captain
Jun 11, 2025 · Information Security

Mastering WeChat Account Unblocking: A Step‑by‑Step Self‑Service Guide

This comprehensive guide explains the types of WeChat account restrictions, preparation steps, the five‑stage self‑service unblocking workflow, common issues and solutions, friend‑assisted verification procedures, advanced appeal strategies for permanent bans, and post‑unblock security measures to help users efficiently restore access.

UnblockingVerificationWeChat
0 likes · 18 min read
Mastering WeChat Account Unblocking: A Step‑by‑Step Self‑Service Guide
Java Captain
Java Captain
Jun 10, 2025 · Backend Development

Why Spring Batch? Real‑World Scenarios, Core Architecture and Hands‑On Guide

This article explains the necessity of batch processing, presents typical use cases such as daily interest calculation, e‑commerce order archiving, log analysis and medical data migration, then dives deep into Spring Batch's core components, provides step‑by‑step code examples, performance‑tuning tips, production‑grade fault‑tolerance, monitoring solutions and a comprehensive FAQ.

Batch ProcessingData integrationJava
0 likes · 20 min read
Why Spring Batch? Real‑World Scenarios, Core Architecture and Hands‑On Guide
Java Captain
Java Captain
Jun 10, 2025 · Operations

How to Unlock a Banned WeChat Account: Step‑by‑Step 2025 Guide

This 2025 guide details every step to diagnose the type of WeChat ban, prepare required documents and devices, and use both client‑side and web‑based self‑service channels, including advanced verification tips and FAQs, to successfully restore a restricted or permanently blocked account.

2025 GuidelinesAccount UnblockingWeChat
0 likes · 10 min read
How to Unlock a Banned WeChat Account: Step‑by‑Step 2025 Guide
Java Captain
Java Captain
Jun 10, 2025 · Fundamentals

Understanding Java Monitors: How Thread Synchronization Works

Java monitors provide a mechanism for thread synchronization by associating each object with a monitor lock, comprising an entry list, owner thread, and wait set, and the article explains their structure, thread state transitions, and demonstrates usage with a practical code example.

JavaMonitorThread Synchronization
0 likes · 6 min read
Understanding Java Monitors: How Thread Synchronization Works
Java Captain
Java Captain
Jun 10, 2025 · Databases

Master MySQL Performance: Slow Queries, Indexes, Transactions & Replication

This article explains how to locate and analyze MySQL slow queries, understand index structures and types, apply best practices for index creation, handle large pagination, manage transaction isolation and MVCC, and implement master‑slave replication and sharding strategies for high‑performance databases.

Index OptimizationMySQLSlow Query
0 likes · 13 min read
Master MySQL Performance: Slow Queries, Indexes, Transactions & Replication
Java Captain
Java Captain
Jun 9, 2025 · Backend Development

How to Use @PathVariable and Map Static Resources in Spring Boot

This guide explains how to use @PathVariable to capture URL segments, configure static resource mapping for local files, and centralize path values in Spring Boot applications, providing code examples for request mapping, resource handler registration, and property injection.

JavaPathVariableSpring Boot
0 likes · 3 min read
How to Use @PathVariable and Map Static Resources in Spring Boot
Java Captain
Java Captain
Jun 8, 2025 · Mobile Development

Unlock WeChat’s Hidden ‘recover’ Feature to Restore Deleted Chats

This article explains WeChat’s hidden “recover” feature, detailing its official purpose, technical limits, step‑by‑step recovery methods, effectiveness, backup strategies, and the risks of third‑party tools, helping users safely restore lost chat records.

BackupData RecoveryInformation Security
0 likes · 8 min read
Unlock WeChat’s Hidden ‘recover’ Feature to Restore Deleted Chats
Java Captain
Java Captain
Jun 8, 2025 · Backend Development

How to Refactor Bloated Spring Controllers into Clean, Maintainable Code

The article critiques overly large and tangled Spring MVC controllers, demonstrates ugly examples filled with try‑catch blocks, field validations, and business logic, then presents streamlined, elegant alternatives using @Valid, @Autowired, proper exception handling, and best‑practice guidelines to dramatically reduce code size and improve readability.

Controller RefactoringJavaSpring Boot
0 likes · 10 min read
How to Refactor Bloated Spring Controllers into Clean, Maintainable Code