如何使用默认Jersey JAXB MessageBodyWriter for XML与自定义提供程序混合使用？

Question

我似乎无法让基于Jersey/Jetty的服务器使用默认的JAXB MessageBodyWriter for XML。我得到了这个错误：

找不到媒体类型=Application/XML的MessageBodyWriter，类型=...

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

import cmb.agent.engine.resource.AgentCertificateResource;
import cmb.agent.engine.resource.ProfileResource;
import cmb.agent.engine.servlet.SessionRequestFilter;

@ApplicationPath("/")
public class AgentExample extends Application {
    private Set<Object>                         singletons = new HashSet<Object>();
    private Set<Class<?>>                       perRequestServices = new HashSet<>();

    public AgentExample() {
        perRequestServices.add(ProfileResource.class);
        perRequestServices.add(AgentCertificateResource.class);
        singletons.add(new NotificationXmlMarshaller());
        singletons.add(new SessionRequestFilter());
    }

    @Override
    public Set<Class<?>> getClasses() {
        return perRequestServices;
    }

    @Override
    public Set<Object> getSingletons() {
        return singletons;
    }
}

compile("org.glassfish.jersey.containers:jersey-container-servlet:$jerseyGlassfishVersion")
compile("org.glassfish.jersey.media:jersey-media-jaxb:$jerseyGlassfishVersion")
compile("org.glassfish.jersey.core:jersey-client:$jerseyGlassfishVersion")

泽西版本2.25。

Answer 1

我终于发现我的实体类中有一个重大错误。我忘记了@XmlRootElement注释。叹息。：（