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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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Recent Articles

Latest from IT Xianyu

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IT Xianyu
IT Xianyu
Apr 18, 2022 · Backend Development

Global Date and Time Conversion in Spring Boot 2.x: Custom Converters, Jackson Configuration, and Parameter Binding

This article explains how to globally handle LocalDate, LocalDateTime, and LocalTime parameters in Spring Boot 2.x by creating custom Converter beans, configuring Jackson's ObjectMapper, using @DateTimeFormat, ControllerAdvice, and understanding the underlying parameter resolution mechanisms to avoid common pitfalls such as lambda‑based converter registration failures.

BackendConverterJackson
0 likes · 16 min read
Global Date and Time Conversion in Spring Boot 2.x: Custom Converters, Jackson Configuration, and Parameter Binding
IT Xianyu
IT Xianyu
Apr 1, 2022 · Backend Development

Why Use Spring? Understanding How It Solves Coupling Problems with Dependency Injection

This article compares traditional object creation with Spring’s dependency injection, demonstrating how injecting DAO beans via XML configuration decouples service and data layers, includes Java code examples, test results, and visual analogies of gear systems to illustrate reduced coupling.

Backend DevelopmentDependency InjectionInversion of Control
0 likes · 5 min read
Why Use Spring? Understanding How It Solves Coupling Problems with Dependency Injection
IT Xianyu
IT Xianyu
Mar 30, 2022 · Backend Development

How to Enable SpringBoot DevTools Hot Deployment, Use Lombok, and Configure Spring Configuration Processor

This article explains how to add SpringBoot DevTools for hot deployment, integrate Lombok to simplify JavaBean code, and configure the Spring Configuration Processor for property metadata, providing step‑by‑step instructions, IDE settings, and Maven dependency snippets for a smoother development experience.

Configuration ProcessorDevToolsHot Deployment
0 likes · 5 min read
How to Enable SpringBoot DevTools Hot Deployment, Use Lombok, and Configure Spring Configuration Processor
IT Xianyu
IT Xianyu
Mar 3, 2022 · Databases

Introducing SPL: An Open‑Source Structured Data Processing Language with Full SQL‑92 Capabilities

SPL is an open‑source structured data processing language that extends full SQL‑92 functionality to a wide range of data sources—including CSV, Excel, JSON, NoSQL and Hadoop—allowing developers to perform complex queries, multi‑step calculations, and mixed‑source analytics without a traditional relational database.

Big DataQuery LanguageSPL
0 likes · 14 min read
Introducing SPL: An Open‑Source Structured Data Processing Language with Full SQL‑92 Capabilities
IT Xianyu
IT Xianyu
Feb 18, 2022 · Frontend Development

Understanding Object.keys Order and V8 Property Handling to Fix a wxml2canvas Bug

This article explains why a WeChat mini‑program’s share card lost its QR code due to incorrect assumptions about Object.keys ordering, dives into the ECMAScript specification and V8’s internal property storage, and shows how to modify wxml2canvas to correctly sort elements and avoid the bug.

DebuggingJavaScriptObject.keys
0 likes · 19 min read
Understanding Object.keys Order and V8 Property Handling to Fix a wxml2canvas Bug
IT Xianyu
IT Xianyu
Feb 14, 2022 · Databases

MySQL Data Recovery: Backup Strategies, Point‑in‑Time Restoration, Table Recovery, and Flashback Techniques

This article explains how to prevent data loss in MySQL by enabling binlog in ROW format, performing full and incremental restores using mysqldump or XtraBackup, executing point‑in‑time recovery, restoring individual tables, skipping erroneous SQL statements, and using flashback tools such as binlog2sql and MyFlash.

BackupBinlogFlashback
0 likes · 15 min read
MySQL Data Recovery: Backup Strategies, Point‑in‑Time Restoration, Table Recovery, and Flashback Techniques
IT Xianyu
IT Xianyu
Feb 11, 2022 · Frontend Development

Building a Winter Olympics 3D Web Page with Three.js and React

This article demonstrates how to build an interactive Winter Olympics-themed 3D web page using Three.js and React, covering model loading, custom materials, lighting, particle effects, and camera controls, with detailed code snippets and explanations for each component.

3D graphicsReactThree.js
0 likes · 19 min read
Building a Winter Olympics 3D Web Page with Three.js and React
IT Xianyu
IT Xianyu
Feb 9, 2022 · Backend Development

Introducing kkFileView: An Open‑Source Spring Boot Document Preview Solution

kkFileView is a free, Apache‑licensed Spring Boot project that enables online preview of numerous file types—including office documents, PDFs, CAD files, images, archives, and multimedia—offering RESTful APIs, easy deployment, and extensible interfaces for developers seeking a versatile document viewer.

BackendDocument ViewerSpring Boot
0 likes · 5 min read
Introducing kkFileView: An Open‑Source Spring Boot Document Preview Solution
IT Xianyu
IT Xianyu
Feb 8, 2022 · Backend Development

Deploying a Spring Boot Application with Docker Using IntelliJ IDEA

This tutorial explains how to install Docker, configure remote access, create a Spring Boot project in IntelliJ IDEA, add Dockerfile and Maven settings, build a Docker image, run the container, and verify the application through a browser and log inspection.

BackendDockerIntelliJ IDEA
0 likes · 7 min read
Deploying a Spring Boot Application with Docker Using IntelliJ IDEA