Automate Spring Boot Starter Setup with mica-auto

Introduction

mica-auto is a core component of the Spring Cloud microservice framework Mica, used to generate basic configurations for Spring Boot starters.

Features

Generate

spring.factories

.

Generate

spring-devtools.properties

.

Add FeignClient entries to

spring.factories

for automatic Feign configuration in mica-cloud.

Generate Java SPI configuration, requiring the

@AutoService

annotation.

@AutoContextInitializer: ApplicationContextInitializer

@AutoListener: ApplicationListener

@AutoRunListener: SpringApplicationRunListener

@AutoEnvPostProcessor: EnvironmentPostProcessor

@AutoFailureAnalyzer: FailureAnalyzer

@Component: EnableAutoConfiguration

@AutoService: Java SPI configuration

Change Log

Added support for

SpringApplicationRunListener

.

Added support for

EnvironmentPostProcessor

.

Upgraded Spring Boot to

2.2.6.RELEASE

.

Usage

Note: If your project uses Lombok, place the mica-auto dependency after Lombok.

Maven

<code>&lt;dependency&gt;
  &lt;groupId&gt;net.dreamlu&lt;/groupId&gt;
  &lt;artifactId&gt;mica-auto&lt;/artifactId&gt;
  &lt;version&gt;1.2.1&lt;/version&gt;
  &lt;scope&gt;provided&lt;/scope&gt;
&lt;/dependency&gt;</code>

Gradle ≥ 5.x

<code>annotationProcessor("net.dreamlu:mica-auto:1.2.1")</code>

Gradle < 5.x

<code>compileOnly "net.dreamlu:mica-auto:1.2.1"</code>

Java SPI Example

<code>package foo.bar;

import javax.annotation.processing.Processor;

@AutoService(Processor.class)
public class MyProcessor implements Processor {
    // …
}</code>

The

AutoService

annotation automatically generates the SPI configuration file

META-INF/services/javax.annotation.processing.Processor

with the content:

<code>foo.bar.MyProcessor</code>

Usage Scenarios

Spring Boot starter development tool that automatically generates

spring.factories

and

spring-devtools.properties

configurations.

Automatic configuration for sub‑modules in multi‑module projects where package names differ (not recommended for the main project).

Automatic generation of Java SPI extension configurations.