WSO2 ESB正在重复请求

Question

我有一个运行良好的代理服务，是WSO2 ESB上的任务要求的，但是有时在将XML正文发送到调用介体时会发出重复的请求。为什么有时会重复？也许我应该就这种结构获得一些建议？有人可以帮我这个代理服务吗？

<proxy name="MyServiceStartOperProxy" startOnLoad="true" transports="https http" xmlns="http://ws.apache.org/ns/synapse">
    <target>
        <inSequence onError="CustomFaultHandlerForWs_Sequence">
            <property expression="fn:normalize-space($body//PaymentDate)" name="PrPaymentDate" scope="default" type="STRING"/>
            <filter xpath="get-property('PrPaymentDate') = ''">
                <then>
                    <property expression="get-property('SYSTEM_DATE', 'yyyy-MM-dd')" name="PrPaymentDate" scope="default" type="STRING"/>
                </then>
                <else>
                    <property expression="get-property('PrPaymentDate')" name="PrPaymentDate" scope="default" type="STRING"/>
                </else>
            </filter>
            <property expression="get-property('MyServiceSettingsXml_Local-entries')" name="LocalEntriesXML" scope="default" type="OM"/>
            <property expression="fn:concat($ctx:LocalEntriesXML//*[local-name()='HostPortWS'], '/services/MyServiceSendToMethod1_Proxy')" name="uri.var.PrWSAddress" scope="default" type="STRING"/>
            <payloadFactory media-type="xml">
                <format>
                    <dat:MyServiceGetCardPaymentDataService_Operation xmlns:dat="http://ws.wso2.org/dataservice">
                        <dat:PaymentDate>$1</dat:PaymentDate>
                    </dat:MyServiceGetCardPaymentDataService_Operation>
                </format>
                <args>
                    <arg evaluator="xml" expression="get-property('PrPaymentDate')"/>
                </args>
            </payloadFactory>
            <header name="Action" scope="default" value="MyServiceGetCardPaymentDataService_Operation"/>
            <log level="custom">
                <property name="ProxyName" value="MyServiceStartOperProxy.inSequence BeforeCall MyServiceSendToMethod1_Proxy"/>
            </log>
            <property description="Convert application/xml format to text/xml format, because got response application/xml format" name="messageType" scope="axis2" type="STRING" value="text/xml"/>
            <property description="Convert application/xml format to text/xml format, because got response application/xml format" name="ContentType" scope="axis2" type="STRING" value="text/xml"/>
            <!------------------------------------------------------------->
            <!--Here happen problem, endpoint is called two times-->
            <!------------------------------------------------------------->
            <call>
                <endpoint>
                    <http method="post" uri-template="{uri.var.PrWSAddress}"/>
                </endpoint>
            </call>
            <log level="custom">
                <property name="ProxyName" value="MyServiceStartOperProxy.inSequence AfterCall MyServiceSendToMethod1_Proxy"/>
            </log>
        </inSequence>
        <outSequence>
        ..................
        </outSequence>
        <faultSequence/>
    </target>
    <publishWSDL key="gov:_system/config/resources/MyServiceStartOperProxyCustom.wsdl" preservePolicy="true"/>
</proxy>

Answer 1

给定的突触配置似乎没有任何问题。按照给定的描述任务正在调用代理服务，并且您遇到从代理服务发出的重复请求。以下是缩小问题范围的一些步骤，

• 由于添加了自定义日志ProxyName。您是否看到重复的自定义日志消息打印在碳日志中？如果是这样，则意味着该任务多次调用代理服务，您将不得不对调用代理的任务进行故障排除]
• 您如何观察到ESB服务器发出重复的请求。您是否启用了电汇日志来对此进行监视？