如何在flex中访问xml节点

web服务返回到我的flex3客户端此自定义异常：

<SOAP-ENV:Fault xmlns:ro="urn:Gov2gLibrary" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:HNS="http://tempuri.org/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:v1="http://tempuri.org/">
 <faultcode>E2gError</faultcode>
 <faultstring>abc</faultstring>
 <detail>
  <HNS:ROException>
   <HNS:Messages>
    <HNS:T2gMsg>
     <HNS:ID>4545</HNS:ID>
     <HNS:Severity>abc</HNS:Severity>
     <HNS:Category>abc</HNS:Category>
     <HNS:Message1>abc</HNS:Message1>
     <HNS:Message2 />
    </HNS:T2gMsg>
    <HNS:T2gMsg>
     <HNS:ID>345344</HNS:ID>
     <HNS:Severity>abc</HNS:Severity>
     <HNS:Category>abc</HNS:Category>
     <HNS:Message1>abc</HNS:Message1>
     <HNS:Message2 />
    </HNS:T2gMsg>
   </HNS:Messages>
  </HNS:ROException>
 </detail>
</SOAP-ENV:Fault>

---

现在我不知道如何读取ID、严重性等值。我认为像“x.ID”这样的东西应该可以工作，但实际上不行，而x.child（“ID”）或x.elements（“ID”）返回null。我能做些什么？

您的xml使用名称空间，因此您可以尝试访问

someNode.name（）.localName

以深入挖掘，并使用text（）获取值

for (var i:int = 0; i < x.length(); i++) {
    if (x[i].name().localName == "ID")  trace('x["ID"]: ' + x[i].text());
}

for（变量i:int=0；i

谢谢。通过在线文档和本次讨论，我了解了如何访问名称空间xml节点。
我想，如果前缀没有用作下面的示例xml，则需要为正在使用的uri分配名称空间

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <FindJunctionResponse xmlns="http://someserver/Service/NamePath">
      <FindJunctionResult>
        <OID>558</OID>
        <ClassID>5</ClassID>
        <Position>0</Position>
        <EID>0</EID>
        <XCoord>1662634.10015</XCoord>
        <YCoord>71634.435475</YCoord>
        <IsJunction>true</IsJunction>
        <IsFlag>false</IsFlag>
      </FindJunctionResult>
    </FindJunctionResponse>
  </soap:Body>
</soap:Envelope

（正如我建议的那样，我将在这里提出我为解决这个问题而提出的解决方案）

这是名称空间的问题：解释我们需要限定节点以访问它们：

var obj:Object = e.fault;
var doc:XML = obj.element.detail[0];
var err:XMLList = doc.children()[0].children(); // messages
var ns:Namespace = doc.namespace("HNS");
for each (var x:XML in err.children())
{
    trace(x.ns::ID);
    trace(x.ns::Severity);
    trace(x.ns::Category);
    trace(x.ns::Message1);
    trace(x.ns::Message2);
}

---

对不起，我不明白，我知道XML（x.children（）[0]）.localName（）.toString（）->“ID”，但我想通过名称访问ID值，比如x.ID或x[“ID”]或x.some_方法（“ID”），而不是通过索引。我想会有一些if/else操作。你为什么不用找到的解决方案回答你的问题呢？将其作为问题的一部分并不是问题的明显位置（更不用说问题仍然没有公认的答案……）

<xml message>.<namespace class>::<xml node>.<name space class>

private function webServiceHandleResult(event:ResultEvent):void
{                            
    XML.ignoreWhitespace;
    var eXml:XML = new XML(event.message.body);
    var eXmlList:XMLList = eXml.children();
    var soapNS:Namespace = eXml.namespace("soap");
    var xmlnsNS:Namespace = new Namespace("http://someserver/Service/NamePath/")
    var resulteXmlList:XMLList = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult;
    for each (var myxml:XML in resulteXmlList.children())
    {
        //for each field, you can get the name and the value
        trace("field: " + myxml.localName() + ": " + myxml.valueOf());
    }
    //or reference each xml node by name.
    trace("OID: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::OID);
    trace("ClassID: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::ClassID);
    trace("Position: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::Position);
    trace("EID: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::EID);
    trace("XCoord: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::XCoord);    
    trace("YCoord: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::YCoord);    
    trace("IsJunction: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::IsJunction);
    trace("IsFlag: " = eXml.soapNS::Body.xmlnsNS::FindJunctionResponse.xmlnsNS::FindJunctionResult.xmlnsNS::IsFlag);    
}

var obj:Object = e.fault;
var doc:XML = obj.element.detail[0];
var err:XMLList = doc.children()[0].children(); // messages
var ns:Namespace = doc.namespace("HNS");
for each (var x:XML in err.children())
{
    trace(x.ns::ID);
    trace(x.ns::Severity);
    trace(x.ns::Category);
    trace(x.ns::Message1);
    trace(x.ns::Message2);
}