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IT Xianyu
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IT Xianyu

We share common IT technologies (Java, Web, SQL, etc.) and practical applications of emerging software development techniques. New articles are posted daily. Follow IT Xianyu to stay ahead in tech. The IT Xianyu series is being regularly updated.

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IT Xianyu
IT Xianyu
Apr 24, 2023 · Backend Development

Improving Spring Controller Layer: Unified Response Structure, Validation, and Exception Handling

This article explains how to refactor a Spring MVC Controller by introducing a unified response wrapper, leveraging ResponseBodyAdvice for automatic packaging, applying JSR‑303 validation for @RequestBody, @PathVariable and @RequestParam parameters, creating custom validation annotations, and handling business and system exceptions consistently.

ControllerException HandlingJava
0 likes · 15 min read
Improving Spring Controller Layer: Unified Response Structure, Validation, and Exception Handling
IT Xianyu
IT Xianyu
Apr 19, 2023 · Databases

Robustdb: A Lightweight Read‑Write Splitting Solution for Java Applications

This article introduces Robustdb, a compact open‑source read‑write separation framework built with about ten classes and two thousand lines of code, explains its architecture, routing logic, method‑level transaction handling, dynamic data‑source management, and performance advantages over existing solutions like Atlas.

DataSourceJavaRead/Write Splitting
0 likes · 15 min read
Robustdb: A Lightweight Read‑Write Splitting Solution for Java Applications
IT Xianyu
IT Xianyu
Apr 6, 2023 · Backend Development

Guide to Installing and Using Nginx Proxy Manager with Docker

This tutorial introduces Nginx Proxy Manager, a visual reverse‑proxy management interface, and provides step‑by‑step instructions for installing it via Docker‑Compose, configuring domains, setting up SSL with Let’s Encrypt, and managing proxy hosts through its web UI.

DockerDocker ComposeNginx
0 likes · 6 min read
Guide to Installing and Using Nginx Proxy Manager with Docker
IT Xianyu
IT Xianyu
Apr 3, 2023 · Backend Development

From Postman to IntelliJ IDEA REST Client

This article explains why the built‑in REST Client in IntelliJ IDEA can replace Postman by offering equivalent request features, environment handling, shared scripts, response assertions, and token management, all within a single development environment.

API debuggingHTTP testingIDEA REST Client
0 likes · 7 min read
From Postman to IntelliJ IDEA REST Client
IT Xianyu
IT Xianyu
Mar 27, 2023 · Fundamentals

17 Useful Python Tricks for Efficient Coding

This article presents seventeen practical Python techniques—including list manipulation, string handling, dictionary operations, and chaining—that are simple to implement yet widely applicable, helping developers write cleaner, more concise, and more efficient code across various domains.

Tipsbeginnerscode optimization
0 likes · 3 min read
17 Useful Python Tricks for Efficient Coding
IT Xianyu
IT Xianyu
Dec 2, 2022 · Databases

How MySQL InnoDB Implements ACID: Locks, MVCC, and Logging

This article explains how MySQL's InnoDB engine guarantees ACID properties by describing the four components of ACID, the four isolation levels, lock granularity and types, the MVCC mechanism with version chains and read views, and the roles of undo, redo, and bin logs in ensuring atomicity, consistency, isolation, and durability.

ACIDInnoDBLock
0 likes · 14 min read
How MySQL InnoDB Implements ACID: Locks, MVCC, and Logging
IT Xianyu
IT Xianyu
Sep 6, 2022 · Backend Development

Dynamic Flow Orchestration with Nacos, Docker, and SpringBoot Microservices

This article demonstrates how to build a lightweight, plug‑and‑play flow‑orchestration system for microservices by installing Nacos with Docker, configuring SpringBoot services with Kafka and Nacos, and using dynamic Nacos listeners to adjust Kafka topics at runtime without redeployment.

DockerFlow OrchestrationJava
0 likes · 9 min read
Dynamic Flow Orchestration with Nacos, Docker, and SpringBoot Microservices
IT Xianyu
IT Xianyu
Aug 17, 2022 · Fundamentals

Understanding Different Types of Configuration in Software Projects

This article explains the concept of configuration, enumerates various configuration sources such as hard‑coded values, project files, file‑system files, network‑based stores, JVM startup parameters and OS settings, and discusses their advantages, disadvantages, and suitable usage scenarios for developers.

best practicessoftware development
0 likes · 12 min read
Understanding Different Types of Configuration in Software Projects