# HelloWorld521/Java

java项目实战练习

Repository: https://github.com/HelloWorld521/Java
Canonical: https://ross.abutalabs.com/products/helloworld521-java
Homepage: https://helloworld521.github.io/Java/
Language: Java
License Family: other
Topics: java
Last push: 2024-08-08T12:55:41+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3555, "days_push": 755, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3786, forks 1521 (observed 2026-08-28T04:08:18.585189+00:00)

## What it is
A collection of Java practice projects covering Spring Boot with Shiro, a seckill system, a servlet-based web server, JSP chatroom, library management, captcha generation, and a simple web crawler. It serves as hands-on learning material for Java web development exercises.

## Use cases
- learn java web development through example projects
- study a spring boot shiro integration example
- understand how a seckill flash-sale system is implemented
- see how to build a simple servlet-based web server
- learn jsp chatroom implementation
- find a java captcha generator example
- study a simple java web crawler

## When to choose
- you are learning Java web development and want real project examples
- you want reference code for seckill, Shiro, servlets, or JSP patterns
- you prefer reading small self-contained projects over large frameworks

## When to avoid
- you need production-ready, maintained, or licensed software
- you want a single cohesive library or framework rather than assorted exercises
- you need guaranteed updates or long-term support

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools, web-framework, web-scraping, http-server
- domain: web-development, education, backend, developer-tools
- platform: jvm, cross-platform
- tags: java-practice, spring-boot, servlet, jsp, seckill, shiro, captcha, spider, tutorial-projects

## Member repositories
- HelloWorld521/Java (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:18.585189+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:27:29.025684+00:00, confidence not recorded.
  - readme: https://github.com/HelloWorld521/Java (fetched 2026-08-28T04:08:18.585189+00:00, sha 7562eb62a5b6)
  - homepage: https://helloworld521.github.io/Java/ (fetched 2026-08-29T09:22:06.753085+00:00, sha 5a051f7769c4)
- Data as of 2026-08-30T08:39:29.467469+00:00.