Focused on Java interview questions and practical article sharing, covering algorithms, databases, Spring Boot, microservices, high concurrency, JVM, Docker containers, and ELK-related knowledge. Looking forward to progressing together with you.
This article presents a comprehensive breakdown of monthly salary ranges across major Chinese internet firms, highlighting the distribution of high‑pay (50K+), mid‑pay (20‑50K), and low‑pay (6‑10K) brackets, and analyzes which companies dominate each segment.
The article introduces a Java learning community offering multiple hands‑on projects and then provides a detailed overview of Tencent BlueKing's open‑source Standard Operations (SOPS) workflow engine, highlighting its BPMN‑2.0 modeling, one‑click automation, integration capabilities, and self‑service benefits for IT teams.
This tutorial walks you through setting up a local Java Spring Boot service, installing and configuring cpolar for HTTP tunneling, creating and fixing a public address, and using the cpolar listener to monitor and replay API requests, complete with code snippets and screenshots.
This article walks through analyzing a Spring Boot microservice project, configuring parent and child Maven pom files, packaging the required backend modules, and deploying both the backend JARs and the frontend static assets to a server using Java and http‑server.
A Zhihu discussion highlights dozens of seemingly niche open‑source projects—ranging from AI acceleration libraries like FlashMLA and DeepEP to lightweight servers, databases, and multimedia tools—that have attracted thousands of contributors, users, and stars, illustrating how open source fuels modern technology ecosystems.
The article introduces the open‑source DBSyncer middleware that enables full‑stack data synchronization across MySQL, Oracle, SQL Server, PostgreSQL, Elasticsearch and Kafka, outlines its visual composition, full‑ and incremental sync, real‑time monitoring, and provides step‑by‑step installation instructions while also mentioning related Java learning projects.
A recent production incident revealed that a self‑developed Snowflake‑style ID generator caused duplicate order numbers due to a truncated timestamp, unsafe IP‑based business IDs, and unconfigured worker and data‑center IDs, prompting a detailed analysis of the standard algorithm, the flaws in the custom design, and best‑practice recommendations for robust ID generation.
This article examines the need for comprehensive business operation logging in a central system, outlines the benefits of audit, security, monitoring, and analysis, and walks through three progressive solutions—AOP with annotations, AOP with SpEL, and a Binlog‑based time‑window approach—detailing their implementations, trade‑offs, and architectural considerations.
This guide walks you through what Spring Task is, how to enable it in three simple steps, decode cron expressions, explore six real‑world use cases, unlock four advanced features, avoid common pitfalls, and apply performance‑tuning and future‑proofing techniques for robust Java scheduling.
This article walks through four practical ways to revert code that has already been pushed to a remote Git repository—including manual diff removal, using git revert, creating a new branch, and resetting the current branch with hard, mixed, or keep options—plus tips on force‑pushing and branch protection.
