我希望从w3schools.com (http://wwww.w3schools.com/webservices/tempconvert.asmx) 获取一个XML SOAP响应，但我得到的只是urlString的纯html。我正在遵循来自http://webindream.com/soap-with-swift/的示例。感谢您的帮助。
import UIKit
class ViewController: UIViewController, UITextFieldDelegate, NSURLConnectionDelegate, NSXMLParserDelegate {
var mutableData: NSMutableData = NSMutableData.alloc()
var currentElementName: NSString = ""
@IBOutlet weak var txtCelsius: UITextField!
@IBOutlet weak var txtFahrenheit: UITextField!
@IBAction func btnConvert(sender: AnyObject) {
var celsius = txtCelsius.text
var soapMessage = "<?xml version='1.0' encoding='utf-8'?><soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'><soap:Body><CelsiusToFahrenheit xmlns='http://www.w3schools.com/webservices/'><Celsius>\(celsius)</Celsius></CelsiusToFahrenheit></soap:Body></soap:Envelope>"
var urlString = "http://wwww.w3schools.com/webservices/tempconvert.asmx"
var url = NSURL(string: urlString)
var theRequest = NSMutableURLRequest(URL: url!)
var msgLength = String(countElements(soapMessage))
theRequest.addValue("text/xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
theRequest.addValue(msgLength, forHTTPHeaderField: "Content-Length")
theRequest.addValue("http://www.w3schools.com/webservices/CelsiusToFahrenheit", forHTTPHeaderField: "SOAPAction")
theRequest.HTTPMethod = "POST"
theRequest.HTTPBody = soapMessage.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
var connection = NSURLConnection(request: theRequest, delegate: self, startImmediately: true)
connection?.start()
if(connection == true) {
var mutableData : Void = NSMutableData.initialize()
}
}
func connection(connection: NSURLConnection!, didReceiveResponse response: NSURLResponse!) {
mutableData.length = 0
}
func connection(connect: NSURLConnection!, didReceiveData data: NSData!) {
mutableData.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!) {
var xmlParser = NSXMLParser(data: mutableData)
xmlParser.delegate = self
xmlParser.parse()
xmlParser.shouldResolveExternalEntities = true
}
func parser(parser: NSXMLParser!, didStartElement elementName: String!, namespaceURI: String!, qualifiedName qName: String!, attributes attributeDict: NSDictionary!) {
currentElementName = elementName
}
func parser(parser: NSXMLParser!, foundCharacters string: String!) {
println(string)
if currentElementName == "CelsiusToFahrenheitResult" {
txtFahrenheit.text = string
}
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
println("View did Load")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
编辑*
我收到了 urlString 的纯 HTML...
<head><link rel="alternate" type="text/xml" href="/webservices/tempconvert.asmx?disco" />
<style type="text/css">
BODY { color: #000000; background-color: white; font-family: Verdana; margin-left: 0px; margin-top: 0px; }
#content { margin-left: 30px; font-size: .70em; padding-bottom: 2em; }
A:link { color: #336699; font-weight: bold; text-decoration: underline; }
A:visited { color: #6699cc; font-weight: bold; text-decoration: underline; }
A:active { color: #336699; font-weight: bold; text-decoration: underline; }
A:hover { color: cc3300; font-weight: bold; text-decoration: underline; }
P { color: #000000; margin-top: 0px; margin-bottom: 12px; font-family: Verdana; }
pre { background-color: #e5e5cc; padding: 5px; font-family: Courier New; font-size: x-small; margin-top: -5px; border: 1px #f0f0e0 solid; }
td { color: #000000; font-family: Verdana; font-size: .7em; }
h2 { font-size: 1.5em; font-weight: bold; margin-top: 25px; margin-bottom: 10px; border-top: 1px solid #003366; margin-left: -15px; color: #003366; }
h3 { font-size: 1.1em; color: #000000; margin-left: -15px; margin-top: 10px; margin-bottom: 10px; }
ul { margin-top: 10px; margin-left: 20px; }
ol { margin-top: 10px; margin-left: 20px; }
li { margin-top: 10px; color: #000000; }
font.value { color: darkblue; font: bold; }
font.key { color: darkgreen; font: bold; }
font.error { color: darkred; font: bold; }
.heading1 { color: #ffffff; font-family: Tahoma; font-size: 26px; font-weight: normal; background-color: #003366; margin-top: 0px; margin-bottom: 0px; margin-left: -30px; padding-top: 10px; padding-bottom: 3px; padding-left: 15px; width: 105%; }
.button { background-color: #dcdcdc; font-family: Verdana; font-size: 1em; border-top: #cccccc 1px solid; border-bottom: #666666 1px solid; border-left: #cccccc 1px solid; border-right: #666666 1px solid; }
.frmheader { color: #000000; background: #dcdcdc; font-family: Verdana; font-size: .7em; font-weight: normal; border-bottom: 1px solid #dcdcdc; padding-top: 2px; padding-bottom: 2px; }
.frmtext { font-family: Verdana; font-size: .7em; margin-top: 8px; margin-bottom: 0px; margin-left: 32px; }
.frmInput { font-family: Verdana; font-size: 1em; }
.intro { margin-left: -15px; }
</style>
<title>
TempConvert Web Service
<div id="content">
<p class="heading1">TempConvert</p><br>
<span>
<p class="intro">The following operations are supported. For a formal definition, please review the <a href="tempconvert.asmx?WSDL">Service Description</a>. </p>
<ul>
<li>
<a href="tempconvert.asmx?op=CelsiusToFahrenheit">CelsiusToFahrenheit</a>
</li>
<p>
<li>
<a href="tempconvert.asmx?op=FahrenheitToCelsius">FahrenheitToCelsius</a>
</li>
<p>
</ul>
</span>
<span>
</span>