Sharing insights on technical analysis and exchange, making life better through technology.
This article examines three e‑commerce inventory deduction methods—order‑time, payment‑time, and pre‑deduction—detailing their mechanisms, advantages, drawbacks, and suitable scenarios to help developers choose the optimal strategy for high‑concurrency sales.
This article explains multiple database schema designs for hierarchical comment threads, compares their query performance, and shows how Redis can be used to sort hot comments and handle high‑concurrency likes, providing practical solutions for large‑scale comment systems.
Deploying new features without downtime can be challenging, but using blue‑green, canary (gray), and rolling release strategies lets teams switch traffic, control risk, and upgrade services gradually, each method offering distinct trade‑offs in cost, complexity, and compatibility handling.
Even with Nginx handling high‑performance load balancing and static content, a dedicated API gateway is essential for flexible routing, dynamic service discovery, fine‑grained traffic governance, and centralized business logic such as authentication and logging in microservice architectures.
This article explains the principle and step‑by‑step flow of Cross‑Site Request Forgery attacks, illustrates common exploitation techniques such as forged GET/POST requests and click‑bait links, and outlines practical defenses including POST usage, HttpOnly cookies, CSRF tokens, and double‑submit cookie validation.
This guide introduces the most frequently used Linux terminal commands—such as lsb_release, pwd, ls, cp, mv, rm, and many others—explaining their purpose, common options, and practical examples to help developers efficiently navigate and manage files on Linux servers.
This article explains how the JVM execution engine translates Java bytecode into machine code using interpretation, just‑in‑time compilation, and hybrid modes, and details HotSpot's C1/C2 compilers, tiered compilation levels, and their impact on performance.
This article compares four approaches for delivering live‑stream comments—HTTP polling, WebSocket, Server‑Sent Events, and an upgraded SSE cluster design—explaining their mechanisms, trade‑offs in latency, resource usage, scalability, and how to achieve high‑availability real‑time comment delivery.
SSO (Single Sign‑On) and OAuth2.0 are both widely used identity frameworks; SSO handles user authentication across multiple applications with a single login, while OAuth2.0 is an authorization protocol that lets users grant third‑party apps limited access to resources without sharing passwords.
This article compares five MyBatis pagination techniques—including raw LIMIT SQL, RowBounds, custom window‑function queries, interceptor‑based pagination, and the PageHelper plugin—explaining their principles, code examples, performance trade‑offs, and ideal usage scenarios.
