helloworld521/java

This repository is a personal collection of Java practice projects shared publicly for learning purposes. The author describes it as exercise code meant to help others improve their Java skills alongside them. The projects listed cover a range of common Java and web development exercises. There is a Spring Boot starter for Swagger 2, which adds API documentation to Spring Boot applications. There is a project using Spring Boot with Shiro, a security and authentication library. A seckill project, which is a common Chinese web development exercise simulating high-concurrency flash sales, is also included. Other entries cover an older-style web server built on Tomcat and the Servlet 3.0 specification, an Ajax-based project, a JSP chat room, a small library management system called eStore, a Java captcha code generator, and a basic web spider built as a simple learning project. The README is brief and mostly serves as a table of contents pointing to the subdirectories and linked repositories. There is no detailed explanation of each project, no setup instructions, and no description of what problems the code is meant to solve beyond being practice material. This repository is most useful for Java beginners looking for small, self-contained examples of common patterns, such as authentication, web servers, form handling, and simple data management. It is not a production library or framework, just a collection of study projects made available for reference.