Spring integration 如何使用spring integration dsl解组xml

我正在研究spring集成dsl。需求是从队列中读取xml消息，根据消息头值，我需要调用不同的服务。我能够从队列中获取消息，但无法在dsl中编写代码，以便将xml消息解组到对象。有人能帮忙吗？我有解组器，但无法与dsl连接

 IntegrationFlows
            .from(Jms.inboundGateway(connectionFactory)
                    .destination(someQueue)
                    .configureListenerContainer(spec -> spec.get().setSessionTransacted(true)))
            .transform(??)

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首先，您可以使用编组消息转换器配置

Jms.inboundGateway（）

：

/**
 * @param messageConverter the messageConverter.
 * @return the spec.
 * @see ChannelPublishingJmsMessageListener#setMessageConverter(MessageConverter)
 */
public S jmsMessageConverter(MessageConverter messageConverter) {
    this.target.getListener().setMessageConverter(messageConverter);
    return _this();
}

/**
 * An implementation of {@link Transformer} that delegates to an OXM
 * {@link Unmarshaller}. Expects the payload to be of type {@link Document},
 * {@link String}, {@link File}, {@link Source} or to have an instance of
 * {@link SourceFactory} that can convert to a {@link Source}. If
 * {@link #alwaysUseSourceFactory} is set to true, then the {@link SourceFactory}
 * will be used to create the {@link Source} regardless of payload type.
 * <p>
 * The {@link #alwaysUseSourceFactory} is ignored if payload is
 * {@link org.springframework.ws.mime.MimeMessage}.
 * <p>
 * The Unmarshaller may return a Message, but if the return value is not
 * already a Message instance, a new Message will be created with that
 * return value as its payload.
 *
 * @author Jonas Partner
 * @author Artem Bilan
 */
public class UnmarshallingTransformer extends AbstractPayloadTransformer<Object, Object> {

但如果您仍然坚持<代码>转换（）/<代码>，则考虑使用<代码> unMARSCALIN变压器：

/**
 * @param messageConverter the messageConverter.
 * @return the spec.
 * @see ChannelPublishingJmsMessageListener#setMessageConverter(MessageConverter)
 */
public S jmsMessageConverter(MessageConverter messageConverter) {
    this.target.getListener().setMessageConverter(messageConverter);
    return _this();
}

/**
 * An implementation of {@link Transformer} that delegates to an OXM
 * {@link Unmarshaller}. Expects the payload to be of type {@link Document},
 * {@link String}, {@link File}, {@link Source} or to have an instance of
 * {@link SourceFactory} that can convert to a {@link Source}. If
 * {@link #alwaysUseSourceFactory} is set to true, then the {@link SourceFactory}
 * will be used to create the {@link Source} regardless of payload type.
 * <p>
 * The {@link #alwaysUseSourceFactory} is ignored if payload is
 * {@link org.springframework.ws.mime.MimeMessage}.
 * <p>
 * The Unmarshaller may return a Message, but if the return value is not
 * already a Message instance, a new Message will be created with that
 * return value as its payload.
 *
 * @author Jonas Partner
 * @author Artem Bilan
 */
public class UnmarshallingTransformer extends AbstractPayloadTransformer<Object, Object> {

/**
*委托给OXM的{@link Transformer}的实现
*{@link Unmarshaller}。期望负载的类型为{@link Document}，
*{@link String}、{@link File}、{@link Source}或具有
*{@link SourceFactory}，可以转换为{@link Source}。如果
*{@link#alwaysUseSourceFactory}设置为true，则{@link SourceFactory}
*将用于创建{@link Source}，而不考虑负载类型。
*
*如果有效负载为空，则忽略{@link#alwaysUseSourceFactory}
*{@link org.springframework.ws.mime.MimeMessage}。
*
*解组器可以返回消息，但如果返回值不是
*已存在消息实例，将使用该实例创建新消息
*返回值作为其有效负载。
*
*@作者Jonas Partner
*@作者Artem Bilan
*/
公共类解组器Transformer扩展了AbstractPayloadTransformer{

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谢谢。我做了以下更改以使其正常工作。这是从（Jms.inboundGateway（connectionFactory）、destination（sourceQueue）、jmsMessageConverter（new MarshallingMessageConverter（jaxbMarshaller（））.configureListenerContainer（spec->spec.get）开始的正确方法吗（）.setSessionTransact（true））@Bean public org.springframework.oxm.Marshaller jaxbMarshaller（）{Jaxb2Marshaller Jaxb2Marshaller=new Jaxb2Marshaller（）；…返回Jaxb2Marshaller；}