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没有找到Java类…和MIME媒体类型text / html的消息体编写器

参见英文答案 > How to produce JSON output with Jersey 1.6 using JAXB 6

我正在使用jms /气氛框架在两个应用程序之间进行通信.

其中一个应用是主题的消息生成器,发送以下类型的自定义对象：

@XmlRootElement
    public class A implements Serializable{
    public A(){}

    /* some private properties */

   }

另一方面,不止一个消费者正在倾听主题,并根据身份认证不同订阅.

@GET
    @Produces({MediaType.APPLICATION_JSON})
    public SuspendResponse<A> subscribe() {
    return new SuspendResponse.SuspendResponseBuilder<A>()
            .broadcaster(topic)
            .outputComments(true)
            .addListener(new EventsLogger()).build();
    } 
   @Override
public void incomingBroadcast() {
    try {
        String id = getID();
        if (id.startsWith("/*")) {
            id = "atmosphere";
        }

        logger.info("Looking up Connection Factory {}", FACTORY_NAME);
        Context ctx = new InitialContext();
        ConnectionFactory connectionFactory = (ConnectionFactory) ctx.lookup(FACTORY_NAME);

        logger.info("Looking up topic: {}", TOPIC_NAME);
        Topic topic = (Topic) ctx.lookup(TOPIC_NAME);

        connection = connectionFactory.createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        logger.info("Create consumer for : {}", id);
        String selector = String.format("BroadcasterId = '%s'", id);

        consumer = session.createConsumer(topic, selector);
        consumer.setMessageListener(new MessageListener() {

            @Override
            public void onMessage(Message msg) {
                try {
                    ObjectMessage om = (ObjectMessage) msg;
                    A a = (A) om.getObject();
                    if (a!= null && bc != null) {
                        broadcastReceivedMessage(a);
                    }
                    logger.info("Broadcasted message: {} ", a);
                } catch (JMSException ex) {
                    logger.warn("Failed to broadcast message", ex);
                }
            }
        });
        publisher = session.createProducer(topic);
        connection.start();
        logger.info("JMS created for topic {}, with filter {}", TOPIC_NAME, selector);
    } catch (Throwable ex) {
        throw new IllegalStateException("Unable to initialize MyBroadcaster", ex);
    }

}

我注意到的消息是正确到达JMS主题,但我收到以下异常：

SEVERE: A message body writer for Java class A, and Java type class A, and MIME       
   media type text/html was not found

   SEVERE: The registered message body writers compatible with the MIME media type are:

   */* ->
   com.sun.jersey.core.impl.provider.entity.FormProvider
   com.sun.jersey.core.impl.provider.entity.MimeMultipartProvider
   com.sun.jersey.core.impl.provider.entity.StringProvider
   com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
   com.sun.jersey.core.impl.provider.entity.FileProvider
   com.sun.jersey.core.impl.provider.entity.InputStreamProvider
   com.sun.jersey.core.impl.provider.entity.DataSourceProvider
   com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
   com.sun.jersey.core.impl.provider.entity.ReaderProvider
   com.sun.jersey.core.impl.provider.entity.DocumentProvider
   com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider
   com.sun.jersey.core.impl.provider.entity.SourceProvider$SourceWriter
   com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$General
   com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$General
   com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$General
   com.sun.jersey.json.impl.provider.entity.JSONWithPaddingProvider
   com.sun.jersey.server.impl.template.ViewableMessageBodyWriter
   com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
   com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
   com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$General
   com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$General
   com.sun.jersey.json.impl.provider.entity.JacksonProviderProxy
   com.sun.jersey.moxy.MoxyMessageBodyWorker
   com.sun.jersey.moxy.MoxyListMessageBodyWorker

我使用Netbeans 7.0.1,glassfish 3.1.1,气氛0.8.1,球衣1.11.我搜索了一个尝试任何可能的解决方案,但没有任何帮助.

原文 https://codeday.me/bug/20181016/294947.html

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