Swift Alamofire发送XML请求并接收XML响应

Question

嗨，我正在从Objective C转移到swift。我正在尝试发送xml请求并接收xml响应。我们如何用Alamofire做到这一点。似乎只能用于JSON？

我的结束点：“https://prdesb1.singpost.com/ma/GetItemTrackingDetails”

我的样本请求正文（xml）：

<ItemTrackingDetailsRequest xmlns="http://singpost.com/paw/ns">
<ItemTrackingNumbers>
<TrackingNumber>SMT0000000628</TrackingNumber>
</ItemTrackingNumbers>
</ItemTrackingDetailsRequest>

响应应为

<ItemTrackingDetailsResponse xmlns="http://singpost.com/paw/ns" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    <ItemsTrackingDetailList>
        <ItemTrackingDetail>
            <TrackingNumber>SMT0000000628</TrackingNumber>
            <TrackingNumberFound>true</TrackingNumberFound>
            <AlternativeTrackingNumber/>
            <TrackingNumberActive>true</TrackingNumberActive>
            <PostingDate/>
            <InsuredValue/>
            <InsuredSDR/>
            <Weight/>
            <ExpressInd/>
            <ItemCategory/>
            <Content/>
            <PreadviceDate/>
            <ReceptacleID/>
            <OriginalCountry>Singapore</OriginalCountry>
            <DestinationCountry>Singapore</DestinationCountry>
            <ItemType>Speedpost</ItemType>
            <DeliveryStatusDetails>
                <DeliveryStatusDetail>
                    <StatusDescription>Recovered item from POPStation for service recovery</StatusDescription>
                    <Location>SPEEDPOST SERVICE CENTRE</Location>
                    <BeatNo/>
                    <Date>2016-08-22T16:35:30</Date>
                    <AceDate>20160822 163530</AceDate>
                </DeliveryStatusDetail>
                <DeliveryStatusDetail>
                    <StatusDescription>Delivered to POPStation</StatusDescription>
                    <Location>POPStation@Yew Tee Square</Location>
                    <BeatNo/>
                    <Date>2016-08-16T17:27:48</Date>
                    <AceDate>20160816 172748</AceDate>
                </DeliveryStatusDetail>
                <DeliveryStatusDetail>
                    <StatusDescription>With Delivery Courier</StatusDescription>
                    <Location>SPEEDPOST SERVICE CENTRE</Location>
                    <BeatNo/>
                    <Date>2016-08-16T11:25:00</Date>
                    <AceDate>20160816 112500</AceDate>
                </DeliveryStatusDetail>
                <DeliveryStatusDetail>
                    <StatusDescription>Received at Processing Facility</StatusDescription>
                    <Location>SPEEDPOST SERVICE CENTRE</Location>
                    <BeatNo/>
                    <Date>2016-08-16T10:28:07</Date>
                    <AceDate>20160816 102807</AceDate>
                </DeliveryStatusDetail>
                <DeliveryStatusDetail>
                    <StatusDescription>Notification of shipment confirmation</StatusDescription>
                    <Location>SPEEDPOST SERVICE CENTRE</Location>
                    <BeatNo/>
                    <Date>2016-08-13T11:10:29</Date>
                    <AceDate>20160813 111029</AceDate>
                </DeliveryStatusDetail>
            </DeliveryStatusDetails>
        </ItemTrackingDetail>
    </ItemsTrackingDetailList>
    <Status>
        <ErrorCode>0</ErrorCode>
        <ErrorDesc>Success</ErrorDesc>
    </Status>
</ItemTrackingDetailsResponse>

似乎没有处理XML正文数据的默认方法。任何帮助都非常感激。谢谢！

更新：我曾尝试使用Almofire，但仍无法获得正确的响应（解析后的响应为nil）。我的服务器支持SSLv3和TLS 1.0（已启用传输安全性）

typealias CompletionHandler = (NSError?)->Void

func fetchXML(url: String, trackingNumber: String, completion: CompletionHandler) -> Void {

let params = "<ItemTrackingDetailsRequest xmlns=\"http://singpost.com/paw/ns\"><ItemTrackingNumbers><TrackingNumber>\(trackingNumber.uppercaseString)</TrackingNumber></ItemTrackingNumbers></ItemTrackingDetailsRequest>"

    let xmlRequest = NSMutableURLRequest(URL: NSURL(string: url)!)        
    xmlRequest.HTTPBody = params.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
    xmlRequest.HTTPMethod = "POST"
    xmlRequest.addValue("application/xml", forHTTPHeaderField: "Content-Type")

    Alamofire.request(xmlRequest)
             .response { request, response, data, error in

                print("url\(request?.URL?.absoluteString)")
                print("requestBody\(request?.HTTPBody)")
                print(params)

                print("error\(error.debugDescription)")
                print("status code\(response?.statusCode)")
                let xml = XML.parse(data!)
                print(xml.text)

            }
}

并从viewcontroller调用

let trackingItemUrl = "https://prdesb1.singpost.com/ma/GetItemTrackingDetails"

    self.networking.fetchXML(trackingItemUrl, trackingNumber: "SMT0000000628") { error in
        print("can we get here?")
    }