Java backend, microservices, distributed systems, containerized programming, and more.
This article walks you through installing Multipass, launching and managing Ubuntu virtual machines on Windows, macOS, or Linux, covering commands for version checking, image selection, VM creation, inspection, shell access, pause/restart, deletion, and automated cloud‑init configuration.
This article walks through choosing MinIO for file storage, setting up the environment, integrating MinIO with Spring Boot, and implementing comprehensive file operations—including simple and batch uploads, downloads, previews, large file multipart uploads, and instant upload checks—complete with code examples and testing steps.
This article investigates the common belief that Java try‑catch blocks dramatically degrade performance, explains the JVM’s exception handling mechanism, shows bytecode differences with and without try‑catch, and presents benchmark results under various JVM compilation modes to reveal the true impact.
This guide explains how to integrate SpringDoc into a Spring Boot project to automatically generate OpenAPI 3 documentation, compares it with Swagger, shows minimal configuration steps, annotation usage, grouping techniques, and necessary adjustments for custom WebMvcConfigurer and Spring Security setups.
This article compares Spring Boot and Quarkus across architecture, startup speed, memory usage, CPU consumption, and native image generation, provides detailed test methodology and results, and offers practical guidance for migrating Java microservices to Quarkus.
A Java Spring application repeatedly stalled due to Redis connection pool deadlocks, and the investigation walks through using system tools, JVM thread dumps, and Arthas to pinpoint the issue, then shows how proper pool configuration and safe Redis access prevent the API from freezing.
This article explains how to design and implement a plugin architecture in Java, covering the standard ServiceLoader SPI, custom configuration‑driven loading, dynamic JAR loading with reflection, and Spring Boot's spring.factories mechanism, complete with practical code examples and diagrams.
MyBatis-Flex is a lightweight, high‑performance MyBatis enhancement offering built‑in query wrappers, flexible relation mapping, multi‑datasource support, data masking, caching, and audit capabilities, delivering 5‑10× faster queries than MyBatis‑Plus while eliminating third‑party dependencies for more stable, flexible backend development.
This article explains why clean code is crucial for projects and developers, covering the importance of readable naming, single‑responsibility classes, well‑structured functions, and effective testing practices to boost productivity and reduce technical debt.
This guide walks through building a WeChat mini‑program login system using Java backend services, covering the retrieval of openId and phone number via WeChat APIs, database design, token generation, and request interception for secure authentication.
