Spring 找不到适用于请求类型[request.model.RTPRequest]和内容类型[application/x-java-serialized-object]的HttpMessageConverter

我试图使用Spring集成的HttpRequestExecutingMessageHandler对REST服务调用POST方法

我已经试过了服务器上提供的解决方案

下面是我的配置：我在bean配置类上有@EnableIntegration和@IntegrationComponentScan注释。我已经验证了我在类路径上有Jackson数据绑定jar。我可以通过邮递员得到有效的回复

@Bean
public MessageChannel rtpRequestChannel() {
    MessageChannel rtpRequestPostOperationRequestChannel = new DirectChannel();
    return rtpRequestPostOperationRequestChannel;
}

@Bean
public MessageChannel rtpResponseChannel() {
    MessageChannel rtpRequestPostOperationResponseChannel = new DirectChannel();
    return rtpRequestPostOperationResponseChannel;
}

@ServiceActivator(inputChannel = "rtpRequestChannel")
@Bean
public MessageHandler httResponseMessageHandler(MessageChannel rtpResponseChannel) {

    HttpRequestExecutingMessageHandler handler = new HttpRequestExecutingMessageHandler(
            "http://myhost:8080/services/v1-0/request");
    handler.setHttpMethod(HttpMethod.POST);
    handler.setOutputChannel(rtpResponseChannel);
    handler.setExpectedResponseType(RTPResponse.class);
    return handler;
}

下面是ServiceActivator端点的POJO

@Service
public class RTPRequestServiceClient implements IRTPRequestServiceClient {

    @Override
    @ServiceActivator(inputChannel="rtpRequestChannel")
    public void makeCall(Message<RtpResponse> pr) {
        RtpResponse response = pr.getPayload();
        System.out.println(response);
    }

我的回答是：

public class RTPResponse implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = -3504586520124861349L;

    private String id;
    private String responseId;

    @JsonCreator
    public RTPResponse(@JsonProperty("id") String id, @JsonProperty("responseId") String responseId) {
        super();
        this.id = id;
        this.responseId = responseId;
    }

    // getters ommited for brevity

}

我的请求如下：

RTPRequest body = new RTPRequest(....);

AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(IntegrationBeanConfiguration.class);
        MessageChannel rtpRequestChannel = (MessageChannel) context.getBean("rtpRequestChannel");
        rtpRequestChannel
        .send(
                MessageBuilder.withPayload(body)
                .setHeader("accept","application/json")
                .setHeader("Sender","API_GATEWAY")
                .setHeader("ClientId","DIGITAL")
                .build()
            );

我对Spring集成http相当陌生。我假设RTPRequest对象将通过HttpRequestExecutingMessageHandler默认消息转换器链和类路径中的Jackson数据绑定转换为JSON

---

请告知。

当您发送请求时，您必须将

contentType

标题与

accept

一起明确设置：

.setHeader(MessageHeaders.CONTENT_TYPE,"application/json")

要强制执行

restemplate

，请使用提到的

MappingJackson2HttpMessageConverter

或者您可以配置

HttpRequestExecutingMessageHandler

仅使用此

MappingJackson2HttpMessageConverter

.setHeader(MessageHeaders.CONTENT_TYPE,"application/json")