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Installing Java trips up a lot of beginners. Not because it is hard, but because you have to make a few choices before you even start, and the officia
Every Java program is built from the same bricks: variables to store data, types to describe data, and control flow to make decisions. Let's lay the f
随着 Spring Boot 3.x 和 Java 21 的普及，基于 Project Loom 的虚拟线程（Virtual Threads）成为了提升高并发系统吞吐量（Throughput）的利器。然而，传统的 ThreadLocal 机制（如 Logback 中的 MDC 链路追踪）在虚拟线程频
Paginated queries with automatic total count calculation. Supports specifying result fields. public E> LimitResultListE>,E> query(ClassE> cls, Limi
What is Set in Java? The Set interface is a part of the Java Collections Framework and is available in the java.util package. It represents a collect
Last year I noticed something frustrating: The more advanced the warning, the more likely developers were to ignore it. Not because they were carele
The last article left a thread dangling. It showed that the annotation style marks a class as a bean by putting @Component — or one of its cousins — r
When I first started learning Spring Security, I had a simple question: "If Spring Security can authenticate users using usernames and passwords, wh
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System Prompt Leakage vs Prompt Injection Spring Boot AI You've wired up a Spring Boot service to an LLM, added a SystemMessage with confid
Writing clean, maintainable, and scalable code is essential in software development. The SOLID principles, a set of five design principles th
Every Spring application starts with the same quiet question: how does the container know which objects to build? The first articles in this module de