自定义springboot starter

源码github

pom

    
        
            
                org.springframework.boot
                spring-boot-dependencies
                2.6.7
                pom
                import
            
        
    
    
        
            org.springframework.boot
            spring-boot-autoconfigure
            compile
        
        
            org.springframework.boot
            spring-boot-configuration-processor
            compile
            true

Properties

@ConfigurationProperties(prefix = "com.zl.starter")
public class ZlProperties {
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

需要被配置的bean

public class HelloHandler {

private String name;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String sayHello(){
    return getName()+" say Hello";
}

}

配置类

配置类的@Configuration可以删掉。原理在springboot starter原理简单介绍和spring @Import介绍找到。

@Configuration
@EnableConfigurationProperties(ZlProperties.class)
//生成spring-autoconfigure-metadata.properties
@ConditionalOnClass({HelloHandler.class})
public class ZlAutoConfiguration{
    private final ZlProperties zlProperties;

    @Autowired
    public ZlAutoConfiguration(ZlProperties properties) {
        this.zlProperties = properties;
    }

    @Bean
    public HelloHandler helloHandler(){
        HelloHandler helloHandler = new HelloHandler();
        helloHandler.setName(zlProperties.getName());
        return helloHandler;
    }
}

spring.factories配置

org.springframework.boot.autoconfigure.EnableAutoConfiguration=com.starter.autoconfigure.ZlAutoConfiguration

使用引入starter

 
     com.zl
     zl-spring-boot-starter
     0.0.1

配置application.properties

com.zl.starter.name=hh

注入HelloHandler

    @Resource
   private HelloHandler helloHandler;

   @PostConstruct
   public void a() {
       System.out.println(helloHandler.sayHello());
   }

结果为： hh say Hello。

附A

生成的spring-autoconfigure-metadata.properties

附B

官方连接

自定义springboot starter

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