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spring-integration - Spring Integration - 如何保留原始有效负载并在以后使用它?

转载 作者:行者123 更新时间:2023-12-04 15:23:36 29 4
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我想保留原始请求的原始有效负载并将其放在 xslt-transformer 或其他操作中。我丢失了它,因为我使用了 xslt-transformer,并且我只需要转换中的一些元素。所以我的场景是:

1.inbound-gateway(传入 WS 请求)-> 2.xslt-transformer(用于调用外部 WS 的映射)-> 3.outbound-gateway(调用外部 WS)-> 4.xslt-transformer(从分别是外部 WS 和原始请求)

在第 4 步,我没有原始请求,但我需要它,因为我必须将它的值放入响应中。我该如何实现?

谢谢,
五、

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:int="http://www.springframework.org/schema/integration" xmlns:int-ws="http://www.springframework.org/schema/integration/ws" xmlns:int-xml="http://www.springframework.org/schema/integration/xml" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/integration/ws http://www.springframework.org/schema/integration/ws/spring-integration-ws.xsd http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd                        http://www.springframework.org/schema/integration/xml http://www.springframework.org/schema/integration/xml/spring-integration-xml.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

<bean id="authenticator" class="uk.co.virginmedia.test.Authenticator"/>
<bean id="webserviceDestinationProvider" class="uk.co.virginmedia.test.WebserviceDestinationProvider"/>
<bean id="resultToDocumentTransformer" class="org.springframework.integration.xml.transformer.ResultToDocumentTransformer"/>

<util:map id="orderNamespaceMap">
<entry key="res" value="http://schema/ReserveAppointment/2/0" />
</util:map>

<int-ws:inbound-gateway id="ws-gateway-for-rbta" request-channel="incoming-req-channel" reply-channel=""/>

<int:channel id="incoming-req-channel"/>

<int:service-activator id="authentication" input-channel="incoming-req-channel" ref="authenticator" method="authenticate" output-channel="authenticated-channel" />

<int:channel id="authenticated-channel"/>

<int-xml:xpath-router id="servicetype-router" input-channel="authenticated-channel" evaluate-as-string="true">
<int-xml:xpath-expression expression="//res:ReserveAppointmentRequest/res:serviceType/text()" ns-prefix="res" ns-uri="http://schema/ReserveAppointment/2/0"/>
<int-xml:mapping value="Broadband" channel="broadband-channel"/>
<int-xml:mapping value="FTTC+WholesaleLineRental" channel="fttc-wlr-channel"/>
</int-xml:xpath-router>

<int:channel id="broadband-channel"/>

<int-xml:xslt-transformer id="req_for_bt_xslt_transformer" input-channel="broadband-channel" output-channel="domresult_for_bt_channel" xsl-resource="classpath:/xsl/ToBTReq.xsl" result-type="StringResult"/>

<int:channel id="domresult_for_bt_channel"/>

<int:transformer input-channel="domresult_for_bt_channel" output-channel="document_for_bt_channel" expression="payload.toString()"/>

<int:channel id="document_for_bt_channel"/>

<int-ws:outbound-gateway request-channel="document_for_bt_channel" reply-channel="resp_from_bt_channel" destination-provider="webserviceDestinationProvider" id="call_bt-outbound_gateway" />

<int:channel id="resp_from_bt_channel"/>

<int-xml:xslt-transformer id="resp_for_rbta_xslt_transformer" input-channel="resp_from_bt_channel" output-channel="resp_for_rbta_channel" xsl-resource="classpath:/xsl/ToBTReq.xsl" result-type="StringResult"/>

最佳答案

由于您的原始消息只是文本,您可以将其复制到标题字段。只要您在存储和随后检索之间没有做任何特殊的事情,这应该有效。

所以我会尝试的是:

<int:header-enricher input-channel="authenticated-channel" output-channel="pre-routing-channel">
<int:header name="original-payload" expression="payload.toString()" />
</int:header-enricher>

<!-- changed input channel of router -->
<int-xml:xpath-router id="servicetype-router" input-channel="pre-routing-channel" evaluate-as-string="true">

如果这对您不起作用(可能是因为您必须在两者之间做一些更特别的事情或有效载荷太大),您仍然可以选择使用 ClaimCheck .这实际上正是您所要求的。为此,您需要一个 MessageStore然后在修改它之前存储消息有效负载。因此,您将调用的不是 header-enricher
<int:claim-check-in input-channel="authenticated-channel" output-channel="pre-routing-channel" message-store="payloadstore" />

<!-- MessageStore definition storing payload using in memory map -->
<bean id="simpleMessageStore"
class="org.springframework.integration.store.SimpleMessageStore"/>

关于spring-integration - Spring Integration - 如何保留原始有效负载并在以后使用它?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17998217/

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