Seasoned Java and mobile developer with years of experience, specializing in mini‑programs, public accounts, and full‑stack front‑end development. In the AI era, I continuously learn to broaden my knowledge and evolve. I revived a public account I started a decade ago during a dessert‑startup venture, using code as a vessel and knowledge as a companion. I share personal projects, technical articles, programming tips, and growth insights—let’s improve together and set sail.
This article introduces the Proxy design pattern, explains its core purpose of controlling access without modifying original classes, illustrates everyday analogies, provides a complete Java static‑proxy implementation with interface, real subject, proxy and test code, and summarizes common use cases and distinctions from decorators.
This article introduces the Flyweight design pattern, explains its intrinsic and extrinsic state concepts, presents real-world use cases such as board games and text editors, and provides a complete Java implementation with an abstract piece, concrete piece, factory pool, and test demonstration, highlighting memory savings and potential pitfalls.
This article explains the Facade design pattern, illustrates everyday and software scenarios such as hotel front desks and multimedia players, provides a complete Java implementation with subsystem classes, a facade class, and client code, and lists typical business use cases while warning against common misconceptions.
The article introduces the Decorator pattern, explains its purpose of dynamically adding functionality without altering existing classes, illustrates the concept with everyday analogies and a complete Java milk‑tea example, and lists typical use cases and common pitfalls.
This article introduces the Composite design pattern, explains its purpose of treating leaf and container objects uniformly, shows typical tree‑structured use cases, and provides a complete Java implementation with abstract component, leaf, composite, and a test demo.
This article introduces the Bridge design pattern, explains its purpose of separating two independent dimensions to reduce class explosion, provides practical real‑world examples, and walks through a complete Java implementation with interface, abstract bridge, concrete classes, and a test driver.
This guide walks you through installing IntelliJ IDEA, VS Code, and the WeChat Developer Tool, configuring the MySQL connection to a cloud server, loading the Maven backend project, launching the Spring Boot APIs, and running the Vue admin, Vue mobile, and WeChat mini‑program front‑ends while verifying end‑to‑end connectivity.
This guide walks through deploying MySQL 8.0 in a Docker container on veLinux 2, covering environment requirements, configuring a domestic Docker mirror, pulling the image, running the container with persistence and remote‑access settings, opening firewall ports, granting remote root privileges, and verifying the service.
This article introduces the Prototype design pattern, explains its purpose of cloning existing objects to avoid costly construction, illustrates practical scenarios such as product templates and game asset generation, provides a complete Java shallow‑copy example, and highlights common pitfalls and differences from the Factory pattern.
This article introduces the Builder design pattern, illustrates its concept with everyday analogies like milk‑tea making, and provides a complete Java example that assembles a computer through step‑by‑step builders, followed by a summary of typical business use cases and a tip on avoiding confusion with the Factory pattern.
