具有多个节点实例的XML、Soap和XPATH查询
我正在使用一些XML,并没有真正的技术倾向,我一直试图通过阅读互联网上的各种来源来了解这一点,但进展并不快 我有以下XML:具有多个节点实例的XML、Soap和XPATH查询,xml,soap,xpath,Xml,Soap,Xpath,我正在使用一些XML,并没有真正的技术倾向,我一直试图通过阅读互联网上的各种来源来了解这一点,但进展并不快 我有以下XML: <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:H
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Header>
<XXXSoapHeader xmlns="http://XXX.com/optima/webservices">
<AuthenticationString>?</AuthenticationString>
</XXXSoapHeader>
</soap:Header>
<soap:Body>
<SubmitMultipleCalcMarginRequestResponse xmlns="http://XXX.com/optima/webservices">
<SubmitMultipleCalcMarginRequestResult>
<TaskExecutionSubmitInfo>
<taskExecutionId>74457</taskExecutionId>
<description>Calc LIVE BROKER margin : Account WebServiceTest_Account1(435) : Business Date (12-Feb-2007)</description>
</TaskExecutionSubmitInfo>
<TaskExecutionSubmitInfo>
<taskExecutionId>74458</taskExecutionId>
<description>Calc LIVE BROKER margin : Account WebServiceTest_Account2(436) : Business Date (12-Feb-2007)</description>
</TaskExecutionSubmitInfo>
</SubmitMultipleCalcMarginRequestResult>
</SubmitMultipleCalcMarginRequestResponse>
</soap:Body>
</soap:Envelope>
返回:
<?xml version="1.0" encoding="UTF-8"?>
<root xmlns="http://XXX.com/optima/webservices">
<taskExecutionId>74457</taskExecutionId>
<taskExecutionId>74458</taskExecutionId>
</root>
74457
74458
但是,如果只想返回第二个taskExecutionId,我该怎么办?还是第一个?我试过在[n]后面加上一个,但这不起作用。有什么想法吗?要获取整个XML文档中某个内容的第N个实例,可以使用以下XPath:
(//*[name() = 'taskExecutionId'])[N]
括号是必要的。如果没有它们,您将选择其特定父项下的第N个taskExecutionId
(//*[name() = 'taskExecutionId'])[N]