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

Question

我正在尝试使用 Spring Integration 的 HttpRequestExecutingMessageHandler 在 REST 服务上调用 POST 方法。

我已经尝试过

上提供的解决方案

下面是我的配置：我在 bean 配置上有 @EnableIntegration 和 @IntegrationComponentScan 注释 class。我已经验证我在 class 路径上有 Jackson 数据绑定 jar。我能够使用 POSTMAN.

获得有效响应

@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;
}

下面是服务激活器端点的 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);
    }

我的请求POJO是：

public class RTPRequest implements Serializable {

    private static final long serialVersionUID = 567078627620810886L;

    private final String id;
    private final String paymentAmountCcy;
    private final String paymentAmount;

    @JsonCreator
    public RTPRequest(@JsonProperty("id") String id,
            @JsonProperty("paymentAmountCcy") String paymentAmountCcy,
            @JsonProperty("paymentAmount") String paymentAmount) {
        this.id = id;
        this.paymentAmountCcy = paymentAmountCcy;
        this.paymentAmount = paymentAmount;
    }

    // getters ommited for brevity

}

我的回复POJO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

}

我发送请求如下：

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 还很陌生。我假设 RTPRequest 对象将通过 HttpRequestExecutingMessageHandler 默认消息转换器链和 class 路径中的 Jackson 数据绑定转换为 JSON。

请指教

Answer 1

发送请求时，必须明确设置 contentType header 以及 accept:

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

强制RestTemplate使用提到的MappingJackson2HttpMessageConverter。

或者您可以配置 HttpRequestExecutingMessageHandler 仅使用此 MappingJackson2HttpMessageConverter。

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

no suitable HttpMessageConverter found for request type [request.model.RTPRequest] and content type [application/x-java-serialized-object]

spring

spring-integration

spring-rest