Spring Boot:配置类被简单地忽略而不加载 [英] Spring Boot: Configuration Class is simply ignored and not loaded

问题描述

我的一些 @SpringBootApplication 的类路径上有以下 @Configuration 类:

I have the following @Configuration class on the classpath of a few of my @SpringBootApplications:

@Configuration
@Import({MainConfig.class, RestConfig.class})
public class ApiConfig {

    @Bean
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    public Client client() throws ExecutionException, InterruptedException {
        return service.create(Client.class);
    }

}

我有两个使用此配置的服务(具有不同名称的 Client 类).

I have two services that use this config (with differently named Client classes).

服务 1 正确启动并加载此配置.我可以在启动期间看到 ApiConfig 类型的 bean 被急切地初始化.

Service 1 starts correctly and loads this config. I can see during start up that a bean of type ApiConfig was eagerly initialized.

Service 2 启动不正确:上面的配置类只是被忽略了，没有初始化.

Service 2 starts incorrectly: the above configuration class is simply ignored and not initialized.

服务在单独的 JVM 中启动.

The services are started in separate JVMs.

这些服务具有几乎相同的非常小的 application.properties 文件:

Ther services have nearly identical, very small application.properties files:

spring.application.name=xxx-api
server.port=0
eureka.name=xxx.api
# Only for reading properties from a central location
context.initializer.classes=com.package.contextClass

我什至不确定我可以在问题中写入什么样的附加信息.我已经浏览了几个小时的日志，没有看到明显的区别，只是它明显忽略了我的 @Configuration 类.

I'm not even sure what kind of additional information I could write into the question. I have been going through logs for a couple of hours now and see no discernible difference, simply that it plainly ignores my @Configuration class.

以前有人遇到过这个问题吗?

Has anyone had this issue before?

推荐答案

默认情况下，@SpringBootApplication 注解(或者，更准确地说是推断的 @ComponentScan 注解)仅扫描被注解的类旁边和下方的类路径.

The @SpringBootApplication annotation (or, more precisely the inferred @ComponentScan annotation) by default only scans the classpath next to and below the annotated class.

因此，您的配置类必须放在 Application 类的旁边或子包中.

So, your configuration class must be placed next to or in a sub package of you Application class.

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