Tag: java

All the articles with the tag "java".

• Using Log4j2 (Part 3): Different Configurations for Different Environments

  15 Jul, 2023

  Explains ways to use different Log4j2 output formats and configurations across environments, including SystemPropertyArbiter, property substitution, custom Lookup plugins, and ScriptAppenderSelector. It discusses the choice between startup options and code extensions in the context of project deployment workflows.

• Programming Visualization Websites and Tools (Continuously Updated)

  15 Apr, 2023

  A collection of visualization websites and tools for understanding programming concepts, including Git practice, regular expression testing, Wireshark packet analysis, and shell command explanations. Interactive demonstrations and hands-on practice make it easier to understand how these concepts work and provide a reference for later use.

• Implementing Rate-Limiting Algorithms with Lua Scripts

  31 Dec, 2022

  Lua scripts executed and debugged in Redis implement fixed-window, sliding-window, token-bucket, and leaky-bucket rate limiting. Request-count examples explain fixed-window boundary issues and discuss where the algorithms fit in rate limiting and traffic shaping.

• Using Hibernate Validator (Part 1)

  25 Dec, 2022

  Introduces Hibernate Validator alongside the Jakarta Bean Validation specification, covering constraint annotations, cascading validation, and method parameter and return-value validation. English and Chinese error-message examples demonstrate internationalization, followed by an analysis of how RESTEasy switches validation messages according to the request language.