Swift + Alamofire - 验证并获取 XML 文件

Question

我有一个受用户名和密码保护的网站。我需要获取 XML 文件然后解析它。我尝试了很多解决方案，但没有一个对我有用。我收到此代码。

Error: Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Encountered unknown tag tabless on line 1) UserInfo=0x1aadf300 {NSDebugDescription=Encountered unknown tag tabless on line 1, kCFPropertyListOldStyleParsingError=The operation couldn’t be completed. (Cocoa error 3840.)}

这是我的代码:

 func getTimeStampOfUpdatedTables(completionHandler: (Bool) -> ()) -> (){

    let user = "abc"
    let password = "abc"

    let plainString = "\(user):\(password)" as NSString
    let plainData = plainString.dataUsingEncoding(NSUTF8StringEncoding)
    let base64String = plainData?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))

    Alamofire.Manager.sharedInstance.session.configuration.HTTPAdditionalHeaders = ["Authorization": "Basic " + base64String!]

    Alamofire.request(.GET, "http://example.com/info.php", encoding: ParameterEncoding.URL).responsePropertyList { response in
        print(response.result)
        if let error = response.result.error {
            print("Error: \(error)")

            // parsing the data to an array
        } else if let array = response.result.value as? [[String: String]] {

            if array.isEmpty {
                print("No data")

            } else {
                //Do whatever you want to do with the array here
                print("data here!")
            }
        }
    }
}

Answer 1

出现该错误是因为您的 API 响应采用 XML 而不是属性列表格式。您正在从 Alamofire 请求属性列表，它无法找到 pList 格式，因此它给出了错误。我用 PList 测试了代码，它运行良好

这是属性列表格式

    <?xml version="1.0" encoding="UTF-8"?>

<plist version="1.0">
    <dict>
        <key>Tabless</key>
        <dict>
            <key>Tables</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 2</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 3</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 4</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 5</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 6</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 7</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 8</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>
            <key>Tables - 9</key>
            <dict>
                <key>test</key>
                <string>test</string>

            </dict>

I HAVE TESTED THE WHOLE THING

     let user = "abc"
    let password = "abc"

    let credentialData = "\(user):\(password)".dataUsingEncoding(NSUTF8StringEncoding)!
    let base64Credentials = credentialData.base64EncodedStringWithOptions([])

    let headers = ["Authorization": "Basic \(base64Credentials)"]
    Alamofire.request(.GET, "http://192.168.0.100/r.php", headers: headers)
        .responsePropertyList { response in

        print(response.result)
        if let error = response.result.error {
            print("Error: \(error)")

            // parsing the data to an array
        } else if let array = response.result.value as? [[String: String]] {

            if array.isEmpty {
                print("No data")

            } else {
                //Do whatever you want to do with the array here
                print("data here!")
            }
        }
    }

对于解析 XML 数据，您可以考虑 SWXMLHash . Alamofire 请求可能如下所示:

Alamofire.request(.GET, url, parameters: parameters)
         .response { (request, response, data, error) in
            println(data) // if you want to check XML data in debug window.
            var xml = SWXMLHash.parse(data!)
            println(xml["tabless"][0]["TABLE_NAME"].element?.text) 
         }