从 SOAP 响应中获取 JSON
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【中文标题】从 SOAP 响应中获取 JSON【英文标题】：Getting JSON From SOAP Response 【发布时间】：2018-05-21 08:52:04 【问题描述】：我是向肥皂 API 发出请求并从中提取数据的新手。我想知道如何从这个 Soap 响应中解析 Json 数据：
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>["nationalid":"2135199186","countrylist":["countryCode":"AFG","CountryName":"Afghanistan","countryCode":"DZA","CountryName":"Algeria","countryCode":"BHR","CountryName":"Bahrain","countryCode":"COM","CountryName":"Comoros","countryCode":"DJI","CountryName":"Djibouti","countryCode":"EGY","CountryName":"Egypt","countryCode":"ERI","CountryName":"Eritrea","countryCode":"IRQ","CountryName":"Iraq","countryCode":"JOR","CountryName":"Jordan","countryCode":"KWT","CountryName":"Kuwait","countryCode":"LBN","CountryName":"Lebanon","countryCode":"LBY","CountryName":"Libyan Arab Jamahiriya","countryCode":"MRT","CountryName":"Mauritania","countryCode":"MAR","CountryName":"Morocco","countryCode":"OMN","CountryName":"Oman","countryCode":"PAK","CountryName":"Pakistan","countryCode":"PSE","CountryName":"Palestinian Territory, Occupie","countryCode":"QAT","CountryName":"Qatar","countryCode":"SOM","CountryName":"Somalia","countryCode":"SDN","CountryName":"Sudan","countryCode":"SYR","CountryName":"Syrian Arab Republic","countryCode":"TUN","CountryName":"Tunisia","countryCode":"ARE","CountryName":"United Arab Emirates","countryCode":"YEM","CountryName":"Yemen"],"isError":false]</soapenv:Body>
</soapenv:Envelope>
编辑：
请求包如下所示：
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:name="http://www.example.org/Name">
<soapenv:Header><wsse:Security soapenv:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<wsse:UsernameToken>
<wsse:Username>UODA_GUEST</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">@password123</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>
<soapenv:Body>
<Name>
<NATIONAL_ID>2135199186</NATIONAL_ID>
<SEC_KEY>1adb445f8815e450b25addad899cab156e63088c</SEC_KEY>
<LANG_CODE>ENG</LANG_CODE>
<SEC_CODE>@password123</SEC_CODE>
</Name>
</soapenv:Body>
</soapenv:Envelope>
对于 api 网址：http://pscstestserver.iau.edu.sa:8888/PSIGW/PeopleSoftServiceListeningConnector/U_COUNTRYLIST_ADM.1.wsdl
响应如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>["nationalid":"2135199186","countrylist":["countryCode":"AFG","CountryName":"Afghanistan","countryCode":"DZA","CountryName":"Algeria","countryCode":"BHR","CountryName":"Bahrain","countryCode":"COM","CountryName":"Comoros","countryCode":"DJI","CountryName":"Djibouti","countryCode":"EGY","CountryName":"Egypt","countryCode":"ERI","CountryName":"Eritrea","countryCode":"IRQ","CountryName":"Iraq","countryCode":"JOR","CountryName":"Jordan","countryCode":"KWT","CountryName":"Kuwait","countryCode":"LBN","CountryName":"Lebanon","countryCode":"LBY","CountryName":"Libyan Arab Jamahiriya","countryCode":"MRT","CountryName":"Mauritania","countryCode":"MAR","CountryName":"Morocco","countryCode":"OMN","CountryName":"Oman","countryCode":"PAK","CountryName":"Pakistan","countryCode":"PSE","CountryName":"Palestinian Territory, Occupie","countryCode":"QAT","CountryName":"Qatar","countryCode":"SOM","CountryName":"Somalia","countryCode":"SDN","CountryName":"Sudan","countryCode":"SYR","CountryName":"Syrian Arab Republic","countryCode":"TUN","CountryName":"Tunisia","countryCode":"ARE","CountryName":"United Arab Emirates","countryCode":"YEM","CountryName":"Yemen"],"isError":false]</soapenv:Body>
</soapenv:Envelope>
我正在创建这样的请求：
static func createServiceRequest(params : Dictionary<String,String>, serviceName:String, urlString: String, method: String) -> URLRequest
var parameters : String = ""
for (key, param) in params
parameters = "\(parameters)<\(key)>\(param)</\(key)>"
let soapMessage = "<Envelope xmlns=\"http://schemas.xmlsoap.org/soap/envelope/\"><Body><\(serviceName) xmlns=\"http://ud.edu.sa/api/ldap\">\(parameters)</\(serviceName)></Body></Envelope>"
let soapLenth = String(soapMessage.count)
let theURL = URL(string: urlString)
var mutableR = URLRequest(url: theURL!)
// MUTABLE REQUEST
mutableR.addValue("text/xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
mutableR.addValue("text/html; charset=utf-8", forHTTPHeaderField: "Content-Type")
mutableR.addValue(soapLenth, forHTTPHeaderField: "Content-Length")
mutableR.httpMethod = method
mutableR.httpBody = soapMessage.data(using: String.Encoding.utf8)
return mutableR
然后创建一个 url 会话并使用 Stimorol 的 XMLElementExtractor 类：
func fetchJsonFor(request: URLRequest, completion: @escaping ((Any?) -> Void))
let task = URLSession.shared.dataTask(with: request) (data, response, error) in
if error != nil
print(error?.localizedDescription ?? "Error")
completion(nil)
guard let data = data else
completion(nil)
return
let jsonString = XMLElementExtractor.extractElement("soapenv:Body", fromXML: data) ?? "NO JSON STRING"
print("JSON STRING:")
print(jsonString)
task.resume()
但我得到 jsonString 没有显示任何 jsonString.count = 1
编辑：
print(String(data: data, encoding: .utf8) ?? "NO UTF8 DATA")
将打印此屏幕截图中的文本：
显然，我需要做额外的步骤来执行这一行
<wsdl:operation name="U_COUNTRYLIST"
因为当我单击屏幕截图上角的 U_COUNTRYLIST 按钮时，会出现另一个屏幕。然后，当我将整个请求数据包粘贴到该屏幕中时，我会得到带有所需 json 的 end soap 响应。
【问题讨论】：
你能提供String(data: data, encoding: .utf8)的结果吗？
感谢帮助，显然这将打印可能需要一些工作的 xml 数据。我更新了问题以说明这一点。
所以你需要提出另一个请求。查询 wsdl 操作需要更高级的解析器。
【参考方案1】：
你可以使用这个 XML 解析 Like this one AEXML
检查一下
print(String(describing: xmlDoc.root["soapenv:Body"].value))
这里是代码
import UIKit
import AEXML
class ViewController: UIViewController
override func viewDidLoad()
super.viewDidLoad()
// example from README.md
guard
let xmlPath = Bundle.main.path(forResource: "example", ofType: "xml"),
let data = try? Data(contentsOf: URL(fileURLWithPath: xmlPath))
else
print("resource not found!")
return
// example of using NSXMLParserOptions
var options = AEXMLOptions()
options.parserSettings.shouldProcessNamespaces = false
options.parserSettings.shouldReportNamespacePrefixes = false
options.parserSettings.shouldResolveExternalEntities = false
do
let xmlDoc = try AEXMLDocument(xml: data, options: options)
// prints the same XML structure as original
print(xmlDoc.xml)
// prints cats, dogs
for child in xmlDoc.root.children
print(child.name)
print(String(describing: xmlDoc.root["soapenv:Body"].value)) // Print your REsponse
catch
print("\(error)")
【讨论】：
【参考方案2】：如果您不想要外部依赖，而您唯一需要的 XML 元素就是这个 Body，您可以为此制作简单的解析器：
import Foundation
final class XMLElementExtractor: NSObject, XMLParserDelegate
private var isTarget = false
private var value: String?
private let elementName: String
private init(elementName: String)
self.elementName = elementName
static func extractElement(_ elementName: String, fromXML data: Data) -> String?
let extractor = XMLElementExtractor(elementName: elementName)
let parser = XMLParser(data: data)
parser.delegate = extractor
parser.parse()
return extractor.value
func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String] = [:])
isTarget = elementName == self.elementName
func parser(_ parser: XMLParser, foundCharacters string: String)
if isTarget
value = value?.appending(string) ?? string
func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?)
if elementName == self.elementName
parser.abortParsing()
let jsonString = XMLElementExtractor.extractElement("soapenv:Body", fromXML: data)
然后只需使用Codable 或JSONSerialization 解析返回的字符串。
【讨论】：
我真的希望这能奏效，但我得到一个什么都没有显示的 jsonString 这很奇怪，因为我使用您的示例和let data = xmlString.data(using: .utf8) 得到了正文中包含的确切内容。你要传递给解析器什么？以上是关于从 SOAP 响应中获取 JSON的主要内容，如果未能解决你的问题，请参考以下文章
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