WSO2 ESB - Xpath 表达式 returns SOAP 响应上的空值

Question

我有一个调用端点并更新通过数据服务在数据库中响应。我已经做了必要的当我调用端点时得到以下响应，这是预期的响应（此响应正在日志文件中打印）。

<?xml version='1.0' encoding='utf-8'?>
<soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">
    <soapenv:Header>
        <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" env:mustUnderstand="1">
            <wsu:Timestamp xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="Timestamp-19033">
                <wsu:Created>2016-04-26T04:35:21.802Z</wsu:Created>
                <wsu:Expires>2016-04-26T04:40:21.802Z</wsu:Expires>
            </wsu:Timestamp>
        </wsse:Security>
    </soapenv:Header>
    <soapenv:Body>
        <ns2:purchaceFromMMRResponse xmlns:ns2="http://flw.mwt.mobitel.com/">
            <return>
                <amount>1.0</amount>
                <date>26042016</date>
                <mobile>0711325362</mobile>
                <recipetNo>20160426100525249665</recipetNo>
                <resultCode>1999</resultCode>
                <resultDesc>Dear Customer,Service is not available due to a technical failure. Please try again in a while .</resultDesc>
                <time>100449</time>
                <transactionId>SDC311521</transactionId>
            </return>
        </ns2:purchaceFromMMRResponse>
    </soapenv:Body>
</soapenv:Envelope>

要调用数据服务（并更新响应字段），我需要从 soap 获取响应值 response.For 我使用了 xpath 表达式获取将在属性中设置的值，然后在数据服务中使用。

<property expression="//ns2:return/ns2:mobile/text()"
        name="mobile" scope="default" type="STRING" xmlns:ns2="http://flw.mwt.mobitel.com/"/>

在我做自定义日志时将值设置为属性后

<log level="custom">
        <property expression="$ctx:mobile" name="mobile"/>
</log>

该值未打印。如果我在这里做错了什么，请纠正我。

Answer 1

节点return和mobile不属于ns2命名空间，用//return/mobile/text( )

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