A tinkering programmer and author of "Spring Cloud Microservices in Action"
Learn how to set up a simple yet powerful Java logging solution by installing Loki and Grafana via Docker, configuring Loki4j in a Spring Boot project, and visualizing logs in Grafana dashboards, with step‑by‑step instructions and essential code snippets.
In this interview, veteran front‑end engineer Winter shares his journey, explains the true scope of front‑end work, discusses the engineering challenges of large‑scale products, outlines the programmer career ladder, and offers candid thoughts on team trust, work culture, and personal planning.
This article introduces eight ready‑to‑use Java Stream APIs—including Stream.ofNullable, Stream.iterate, collectingAndThen, dropWhile/takeWhile, IntStream, teeing, concat, and partitioningBy—showing how each can cleanly handle nulls, generate sequences, transform collections, and combine streams with concise code examples.
This article explains the essential elements of high‑concurrency system design—performance, availability, scalability—introduces quantitative metrics, classifies read‑heavy and write‑heavy scenarios, and details practical solutions such as database read/write separation, local and distributed caching, cache‑penetration and avalanche mitigation, and CQRS implementation for billion‑user applications.
This guide explains six common Spring Boot techniques—@RequestParam, @PathVariable, @MatrixVariable, @RequestBody, @RequestHeader, and @CookieValue—for extracting URL query strings, path variables, matrix variables, request bodies, headers, and cookies, complete with code examples for each method.
This article explains the drawbacks of using Spring Boot's @Value annotation for configuration injection, demonstrates how @ConfigurationProperties can centralize and simplify config management, and shows how to add validation support for robust application settings.
The article recounts a real‑world incident where a game’s leaderboard showed absurd scores due to insecure API parameters, then explains RSA and AES fundamentals, demonstrates how to combine asymmetric and symmetric encryption for secure request handling, and provides Java code, custom annotations, and AOP logic to automate decryption on the server side.
This article explains the concept, challenges, step‑by‑step process, organizational and tool requirements, capacity governance, planning, and AI‑driven prediction for full‑link load testing, illustrating how enterprises can ensure system capacity and stability during large‑scale online events.
Singapore's Ministry of Manpower announced that from December 1 employees can formally request flexible work arrangements—including remote work, flexi‑time, and flexi‑load—with employers required to respond within two months, while the guidelines remain non‑binding and global four‑day work‑week experiments illustrate growing demand for such flexibility.
Java 22 introduces twelve enhancements—including seven preview and one incubator features—spanning language syntax, APIs, performance, and tooling, with detailed explanations of each JEP’s purpose, value, and impact on developer productivity and code readability.
