如何在Web服务xml响应中获取特定的ID

Question

我收到以下Web服务响应，我正在尝试使用下面的代码打开 Id ，该ID在我的前端与n个 RefCode 相关联但它不是循环的。如您所见，当我选择63caa566-ed9e-4489-94f9-74cc3d75d9d3时，我期望有4个与4个RefCode相关的结果，而当我选择另一个53be6dfd-2ae8-4dd1-b9e5-33e78e2a2821时，我希望显示2个结果。我的代码如下：

`for each (patient in response.Patients.Patient) {
var pid=patient.Id;
webService=webServiceFactory.createWebService('http://servername/Services/Patients/' + pid + '/Episodes?format=xml');
webService.setValidHostnamePattern('http://acthdevmedchart.dev.act.gov.au');
webService.setMethod("GET");
webService.addHttpHeader('Accept','application/xml');
response=webService.call(null);
 for each (episode in response.Episodes.Episode) {
  var epid= episode.Id;
   for each (admission in response.episode.Admissions.Admission) {
if (admission.RefCode == '51576222') {
give me all the results for that RefCode }`

我编写上面代码的XML响应如下：

<PatientsResponse
xmlns:i="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://schemas.datacontract.org/2004/07/iSOFT.MedicationManagement.Models.Patients">
<Next
    xmlns:d2p1="http://schemas.datacontract.org/2004/07/iSOFT.MedicationManagement.Models.Common">
    <d2p1:Href>~/Patients?ExternalId=20350227&Skip=1&Take=25</d2p1:Href>
    <d2p1:Rel>~/Relationships/Collections-Succeding-Subset</d2p1:Rel>
</Next>
<Patients>
    <Patient>
        <Addresses>
            <Address>
            123 street
            </Address>
            <Address>
                Country
            </Address>
        </Addresses>
        <AllergyInfoKnown>1</AllergyInfoKnown>
        <AllergyStatus>Allergies Known and Recorded</AllergyStatus>
        <Dob>1956-02-02T00:00:00</Dob>
        <Episodes>
            <Episode>
                <Admissions>
                    <Admission>
                        <ClosedOn i:nil="true"/>
                        <RefCode>51576227</RefCode>
                    </Admission>
                    <Admission>
                        <ClosedOn>2018-07-17T11:11:00</ClosedOn>           
                        <RefCode>51576224</RefCode>
                    </Admission>
                    <Admission>
                        <ClosedOn>2018-07-17T11:12:00</ClosedOn>
                        <RefCode>51576225</RefCode>
                    </Admission>
                    <Admission>
                        <ClosedOn>2018-07-17T11:42:00</ClosedOn>
                        <RefCode>51576226</RefCode>
                    </Admission>
                </Admissions>
                <Id>63caa566-ed9e-4489-94f9-74cc3d75d9d3</Id>
            </Episode>
            <Episode>
                <Admissions>
                    <Admission>
                        <ClosedOn>2018-07-16T15:38:00</ClosedOn>                      
                        <RefCode>51576220</RefCode>
                    </Admission>
                    <Admission>
                        <ClosedOn>2018-07-16T15:38:00</ClosedOn>
                        <RefCode>51576222</RefCode>
                    </Admission>
                </Admissions>                    
                <Id>53be6dfd-2ae8-4dd1-b9e5-33e78e2a2821</Id>
                <OpenedOn>2018-07-16T15:21:00</OpenedOn>
            </Episode>
        </Episodes>
        <ExternalId>20350227</ExternalId>
        <Gender>Female</Gender>
        <Height>0</Height>
        <HeightMeasuredOn i:nil="true"/>
        <Identifiers>
            <Identifier>
                <Type>HR</Type>
                <Value>20350227</Value>
            </Identifier>
            <Identifier>
                <Type>MC</Type>
                <Value>C-U</Value>
            </Identifier>
        </Identifiers>
    </Patient>
</Patients>