Master Mica Microservice Suite: Versions, Prometheus Integration & Code Samples

1. Mica (Microservice Component Suite)

mica

is a collection of microservice components designed for out‑of‑the‑box use, simplifying integration and reducing pitfalls. It currently includes over 40 components, many of which are already integrated.

2. Version Information

Latest 2.5.4 – Mica 2.5.x – Spring Boot 2.5.x – Spring Cloud 2020

Latest 2.4.10 – Mica 2.4.x – Spring Boot 2.4.x – Spring Cloud 2020

Latest 2.1.1-GA – Mica 2.0.x~2.1.x – Spring Boot 2.2.x~2.3.x – Spring Cloud Hoxton

Note: Mica does not enforce Spring Cloud as a dependency; except for mica-jobs and mica-prometheus, other components can be used in ordinary Spring Boot projects.

3. Update Log

✨ Added mica-prometheus module supporting HTTP SD and alert webhook.

✨ mica-swagger now supports v3 annotation @Tag and added v3 annotations.

✨ Code optimization for mica-logging.

✨ Added caching to GitHub Actions.

📝 Updated module diagram.

📝 Added English README (Summer 2021).

⬆️ Upgraded Spring Native to 0.10.2.

⬆️ Upgraded Spring Boot to 2.5.4.

⬆️ Upgraded mica-auto to 2.1.3 to fix multi‑module incremental compilation.

⬆️ Upgraded jsoup to 1.14.2 (no longer supports older versions).

⬆️ Upgraded knife4j to 3.0.3.

⬆️ Upgraded jfinal to 4.9.16.

4. Key Notes

The mica-prometheus component facilitates Spring Cloud services connecting to Prometheus via http_sd and alert webhook, supporting both servlet and webflux. It is recommended to integrate it into non‑business services such as Spring Boot Admin. (See Prometheus HTTP SD documentation.)

Maven

<dependency>
  <groupId>net.dreamlu</groupId>
  <artifactId>mica-prometheus</artifactId>
  <version>${version}</version>
</dependency>

Gradle

compile("net.dreamlu:mica-prometheus:${version}")

http‑sd Configuration

- job_name: micax-cloud
  honor_timestamps: true
  scrape_interval: 15s
  scrape_timeout: 10s
  metrics_path: /actuator/prometheus
  scheme: http
  http_sd_configs:
  - url: 'http://{ip}:{port}/actuator/prometheus/sd'

Effect Diagram

Alert Webhook

receivers:
- name: "alerts"
  webhook_configs:
  - url: 'http://{ip}:{port}/actuator/prometheus/alerts'
    send_resolved: true

Custom Event Listener

@Async
@EventListener
public void onAlertEvent(AlertMessage message) {
  // handle alert webhook message
}

5. Mica Ecosystem

mica-auto (Spring Boot starter): https://gitee.com/596392912/mica-auto

mica-weixin (JFinal Weixin Spring Boot starter): https://gitee.com/596392912/mica-weixin

mica-mqtt (MQTT component based on t‑io): https://gitee.com/596392912/mica-mqtt

Spring Cloud microservice HTTP/2 solution (h2c): https://gitee.com/596392912/spring-cloud-java11

mica-security (Mica permission system, Vue rewrite in progress): https://gitee.com/596392912/mica-security

6. Documentation

Mica source code on Gitee: https://gitee.com/596392912/mica

Mica source code on GitHub: https://github.com/lets-mica

Official documentation site: http://wiki.dreamlu.net

Yuque documentation (subscribe for updates): https://www.yuque.com/dreamlu

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