假设我有一个带嵌入式码头Demo project on github的简单球衣应用程序和下面的基本代码。
回到jersey1的日子里,我有日志信息:
мая 07, 2016 5:05:50 AM com.sun.jersey.api.core.PackagesResourceConfig init
INFO: Scanning for root resource and provider classes in the packages:
ru.varren
мая 07, 2016 5:05:50 AM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Root resource classes found:
class ru.varren.MyResource
мая 07, 2016 5:05:50 AM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Provider classes found:
class ru.varren.JsonProvider
мая 07, 2016 5:05:50 AM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.19.1 03/11/2016 02:08 PM'
但是现在我正在尝试使用jersey2而且thiere不再是日志信息。所以,我的问题是如何列出所有已注册的JAX-RS实体提供商。我不在乎在哪里列出它们。在main
函数或某些@GET
MyResource
方法中。可能我应该在我的设置中更改某些内容或将记录器布尔值,但无法找到它。
这纯粹是出于测试目的。所有提供者类的简单打印对我来说已经足够了。更酷的选择是打印提供商和已经合并的@Produces
和@Consumes
MediaType。
MyResource.java
@Path("test")
public class MyResource {
@GET
@Produces({ MediaType.APPLICATION_JSON })
public Response getPersons() {
return Response.ok("[some data here]").build();
}
}
MyApplication.java
public class MyApplication {
public static void main(String[] args) throws Exception {
URI baseUri = UriBuilder.fromUri("http://localhost/").port(9998).build();
ResourceConfig config = new ResourceConfig(MyResource.class);
config.packages("ru.varren");
Server server = JettyHttpContainerFactory.createServer(baseUri, config, true);
server.join();
}
}
gradle.build
dependencies {
compile 'org.glassfish.jersey.containers:jersey-container-servlet:2.22.2'
compile 'org.glassfish.jersey.containers:jersey-container-servlet-core:2.22.2'
compile 'org.glassfish.jersey.media:jersey-media-json-jackson:2.22.2'
compile 'org.glassfish.jersey.containers:jersey-container-jetty-http:2.22.2'
compile 'org.eclipse.jetty:jetty-server:9.1.0.M0'
compile 'org.eclipse.jetty:jetty-servlet:9.1.0.M0'
}
答案 0 :(得分:4)
您可以使用ApplicationEventListener
,在INITIAILZATION_FINISHED
上,您可以从ApplicationEvent
获取一组资源和提供商。例如
@Provider
public class ProviderLoggingListener implements ApplicationEventListener {
@Override
public void onEvent(ApplicationEvent event) {
switch (event.getType()) {
case INITIALIZATION_FINISHED: {
Set<Class<?>> providers = event.getProviders();
ResourceConfig immutableConfig = event.getResourceConfig();
ResourceModel resourcesModel = event.getResourceModel();
break;
}
}
}
@Override
public RequestEventListener onRequest(RequestEvent requestEvent) {
return null;
}
}
另见:
ResourceModel