Spring Integration 3.0.1 Restful http-inbound-gateway不會將請求正文轉換爲對象

Question

我試圖使用Spring Integration（3.0.1）實現一個RESTful服務，該服務支持兩個 XML和JSON作爲請求，響應格式，使用int-http：入站網關。

我的代碼是基於Spring的集成例子（儘管這並不使用消息的有效載荷）：

https://github.com/spring-projects/spring-integration-samples/tree/master/intermediate/rest-http

服務Activator類：

@Service("httpOrderGateway") 
public class HttpOrderGateway implements OrderGateway { 

    private static final Logger LOGGER = Logger.getLogger(HttpOrderGateway.class); 

    @Override 
    public Message<CreateOrderResponse> createOrder(Message<CreateOrderRequest> orderRequest) { 
     LOGGER.info("Received CreateOrderRequest headers: " + orderRequest.getHeaders()); 
     LOGGER.info("Received: " + orderRequest.getPayload()); 

     return MessageBuilder.withPayload(new CreateOrderResponse("Thank you for your order")).build(); 
    } 

} 

Spring集成XML：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans.xsd 
          http://www.springframework.org/schema/integration 
          http://www.springframework.org/schema/integration/spring-integration.xsd 
          http://www.springframework.org/schema/integration/http 
          http://www.springframework.org/schema/integration/http/spring-integration-http.xsd 
          http://www.springframework.org/schema/oxm 
          http://www.springframework.org/schema/oxm/spring-oxm.xsd" 
     xmlns:int="http://www.springframework.org/schema/integration" 
     xmlns:oxm="http://www.springframework.org/schema/oxm" 
     xmlns:int-http="http://www.springframework.org/schema/integration/http"> 

    <int:annotation-config /> 

    <int:channel id="orderRequestChannel" /> 
    <int:channel id="orderResponseChannel" /> 

    <int-http:inbound-gateway id="inboundOrderRequestGateway" 
           supported-methods="POST" 
           request-channel="orderRequestChannel" 
           reply-channel="orderResponseChannel" 
           view-name="/order" 
           path="/services/order" 
           reply-timeout="50000"> 
    </int-http:inbound-gateway> 

    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"> 
     <property name="order" value="1" /> 
     <property name="contentNegotiationManager"> 
      <bean class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean"> 
       <property name="defaultContentType" value="application/json" /> 
       <property name="mediaTypes"> 
        <map> 
         <entry key="json" value="application/json" /> 
         <entry key="xml" value="application/xml" /> 
        </map> 
       </property> 
      </bean> 
     </property> 
     <property name="defaultViews"> 
      <list> 
       <bean class="com.anon.order.gateway.json.view.ExtendedMappingJacksonJsonView"> 
        <property name="objectMapper" ref="jaxbJacksonObjectMapper" /> 
       </bean> 
       <bean class="org.springframework.web.servlet.view.xml.MarshallingView"> 
        <constructor-arg ref="marshaller" /> 
       </bean> 
      </list> 
     </property> 
    </bean> 

    <oxm:jaxb2-marshaller id="marshaller" contextPath="com.anon.order.gateway.marshalling.model.impl" /> 

    <int:service-activator id="orderGatewayActivator" 
           input-channel="orderRequestChannel" 
           output-channel="orderResponseChannel" 
           ref="httpOrderGateway" 
           method="createOrder" 
           requires-reply="true" 
           send-timeout="60000" /> 

    <bean id="jaxbJacksonObjectMapper" class="com.anon.order.gateway.json.JaxbJacksonObjectMapper" /> 

</beans> 

當前，代碼日誌o UT：

Received: <CustomerServiceRequest><CustomerName>Robert Pulson</CustomerName></CustomerServiceRequest> 

（或等效的JSON格式），並且返回在JSON或XML的響應，這取決於Accept報頭，以使得部分工作。

我已閱讀，是基於以前版本的Spring集成以下類似的問題：

Spring Integration : http:inbound-channel adapter - not getting json object in payload

但這採用了inbound-channel-adaptor，而不是一個inbound-gateway，因爲我有。

如何配置我的inbound-gateway使用marshaller和jaxbJacksonObjectMapper（來自同一個配置文件）到原始請求主體轉換爲CreateOrderRequest實例都JSON/XML嗎？

Answer 1

配置合適的HttpMessageConverter s並使用message-converters屬性注入它們。請參見merge-with-default-converters屬性。

請參閱MappingJackson2HttpMessageConverter（傑克遜2），MappingJacksonHttpMessageConverter（傑克遜1.x）和MarshallingHttpMessageConverter。

此外，如果JAXB和Json消息轉換器位於類路徑中，則默認情況下會自動使用JAXB和Json消息轉換器。如果轉換不需要任何特殊功能，您可以在網關上設置request-payload-type。

查看reference documentation瞭解更多信息。