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.
The article explains Java's virtual threads introduced in Java 19, compares them with traditional threads, and demonstrates how to configure Spring Boot to use virtual threads, including code samples and performance benchmarks that show dramatic latency reductions in both async services and HTTP requests.
This article explains how to protect sensitive database credentials in SpringBoot applications by encrypting passwords in configuration files, leveraging Jasypt and a custom BeanFactoryPostProcessor to transparently decrypt values at runtime.
The latest TIOBE index shows Java falling out of the top three for the first time, C# overtaking it with a rapid market‑share gain, and Kotlin climbing back into the top twenty, while a detailed list of other languages and historical charts illustrate broader programming language trends.
Researchers from Carnegie Mellon University and the University of Bonn have released the open‑source A‑SOiD platform, which learns and predicts user‑defined behaviors solely from video, offering transparent, bias‑aware AI that can be applied to animal studies, human actions, and diverse pattern‑recognition domains.
This article explains how to execute two dependent tasks in parallel, guarantee their successful completion before a final step, and maintain transaction consistency across multiple threads in Spring by using CompletableFuture, programmatic transaction management, and a custom transaction‑resource copying mechanism.
Geeker-Admin is an open‑source admin panel built with Vue 3.3, TypeScript, Vite 5, Pinia and Element‑Plus, offering a rich ProTable component, dynamic routing, theme switching, i18n, extensive custom directives, and full linting and commit tooling for rapid frontend development.
This article explains the CQRS pattern, its origins, benefits, and pitfalls, then details how to implement CQRS and event sourcing in Spring‑based microservices using Axon and Kafka, while discussing architectural considerations, scalability, consistency, and tooling.
This article explains how to build a custom dynamic data‑source solution for Spring Boot by leveraging ThreadLocal and AbstractRoutingDataSource, provides complete Java code for context holders, routing datasource, configuration, annotation‑driven switching, and runtime addition of new data sources.
This article provides a comprehensive overview of the Caffeine local cache library, covering its fundamentals, configuration options, loading strategies, eviction policies, statistics, and detailed steps for integrating Caffeine with Spring Boot using annotations and custom cache managers.
This article demonstrates how to automatically convert monetary, percentage, permillage and other numeric fields in Java DTOs by marking target properties with a map or a custom annotation, then applying reflection‑based logic to perform scaling, rounding and unit changes in a reusable utility class.
