java - 使用自定义注释的组件扫描

Question

我正在使用 maven 依赖项在另一个 spring boot 应用程序中将 spring boot 项目作为 jar 使用。仅当我从微服务启用自定义注释时，我才想对 jar 进行组件扫描。

@SpringBootApplication
//@ComponentScan({"com.jwt.security.*"})  To be removed by custom annotation
@MyCustomAnnotation  //If I provide this annotation then the security configuration of the jar should be enabled.
public class MicroserviceApplication1 {

    public static void main(String[] args) throws Exception {

        SpringApplication.run(MicroserviceApplication1.class, args);

    }

}

请提出一些想法。

Answer 1

在您的图书馆中:

@Configuration
@ComponentScan(basePackages = { "com.jwt.security" })
public class MyCustomLibConfig{

}


@Retention(RUNTIME)
@Target(TYPE)
@Import(MyCustomLibConfig.class)
public @interface MyCustomAnnotation{

 @AliasFor(annotation = Import.class, attribute = "value")
           Class<?>[] value() default { MyCustomLibConfig.class };
}

因此，在您的应用程序中您可以使用注释

@SpringBootApplication
@MyCustomAnnotation  //If I provide this annotation then the security configuration 
                       of the jar should be enabled.
public class MicroserviceApplication1 {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(MicroserviceApplication1.class, args);
    }

}