java - Spring 启动 : Jersey ResourceConfig needs annotating?

Question

我刚刚开始使用 Spring Boot，我想实现一个 ResourceConfig，但我发现了一些相互矛盾的想法。

采取以下措施

@Component
public class JerseyExampleConfig extends ResourceConfig {

上面用COMPONENT注释

@Configuration
public class JerseyExampleConfig extends ResourceConfig {

哪个是正确的？

我认为使用 Configuration 注释是正确的方法，但在示例中似乎使用了 Component。

有什么想法吗？

有什么区别？

Answer 1

documentation建议 @Component:

To get started with Jersey 2.x just include the spring-boot-starter-jersey as a dependency and then you need one @Bean of type ResourceConfig in which you register all the endpoints:

@Component
public class JerseyConfig extends ResourceConfig {

    public JerseyConfig() {
        register(Endpoint.class);
    }
}

documentation还说了以下内容:

You can also register an arbitrary number of beans implementing ResourceConfigCustomizer for more advanced customizations.

All the registered endpoints should be @Components with HTTP resource annotations (@GET etc.), e.g.

@Component
@Path("/hello")
public class Endpoint {

    @GET
    public String message() {
        return "Hello";
    }
}

Since the Endpoint is a Spring @Component its lifecycle is managed by Spring and you can @Autowired dependencies and inject external configuration with @Value. The Jersey servlet will be registered and mapped to /* by default. You can change the mapping by adding @ApplicationPath to your ResourceConfig.