如何从XUL中的JavaScript中的XML文件解析中从父节点获取子子值 [英] How to get subchild values from parent node from XML file parsing in JavaScript in XUL
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问题描述
如何根据电子邮件类型将电子邮件值解析到文本框中.在将电子邮件"值解析到文本框中时，我需要一些帮助.
How could I parse my email values to my text box according to email type. I need some help in parsing Emails values to my text-boxes.
<CONTACT>
<PDE-Identity>N65567</PDE-Identity>
<FirstName>Rangarajkarthik</FirstName>
<LastName>karthik Rangaraj</LastName>
<Facebook-ID/>
<EMAIL>
<Type>gmail</Type>
<Value>kart06@gmail.com</Value>
<Type>yahoo</Type>
<Value>karthikngaraj@yahoo.com</Value>
</EMAIL>
</CONTACT>
如何使用循环将type的值解析到XUL中的文本框?在某些联系人节点中，没有Gmail，在某些联系人节点中，没有Yahoo电子邮件地址.我真的很困惑...
How can I parse the value of type to my textbox in XUL using a loop? In some contact nodes there is no Gmail and in some contact nodes there is no Yahoo email address. I'm really confused here...
<row>
<label value="Gmail"/>
<textbox id="gmail" value=""/>
</row>
<row>
<label value="Yahoo"/>
<textbox id="yahoo" value=""/>
</row>
这是我到目前为止所拥有的:
This is what I have so far:
var str=x[i].getElementsByTagName("Value")[0].childNodes[0].nodeValue;
document.getElementById("gmail").value=str;
它不起作用.
XUL代码:
<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" oncommand="init();">
<grid>
<columns>
<column flex="1"/>
<column flex="4"/>
<column flex="4"/>
<column flex="4"/>
<column flex="4"/>
</columns>
<rows>
<row>
<label control="" value="Select PDE-ID:"/>
<menulist id="List" oncomman="">
<menupopup id="Popup">
</menupopup>
</menulist>
</row>
</rows>
</grid>
<label control="" accesskey="" value=""/>
<grid>
<columns>
<column flex="1"/>
<column flex="4"/>
<column flex="4"/>
<column flex="4"/>
<column flex="4"/>
</columns>
<rows>
<row>
<label value="PDE-Identity"/>
<textbox id="pde" value=""/>
</row>
<row>
<label value="FirstName"/>
<textbox id="fname" value=""/>
</row>
<row>
<label value="LastName"/>
<textbox id="lname" value=""/>
</row>
<row>
<label value="Gmail"/>
<textbox id="gmail" value=""/>
</row>
<row>
<label value="Yahoo"/>
<textbox id="yahoo" value=""/>
</row>
<row>
<label value="Alcatel-Lucent"/>
<textbox id="alcatel-lucent" value="" />
</row>
<row>
<label value="URL"/>
<textbox id="facebook" value="" />
</row>
<row>
<label value="Facebook-ID"/>
<textbox id="fid" value="" />
</row>
</rows>
</grid>
<label value=""/>
<grid>
<columns>
<column flex=""/>
<hbox align="center" >
<button id="save" label="next" oncommand="next()" />
<button id="cancel" label="previous" oncommand="previous()"/>
<button id="delete" label="Merge" oncommand="delete();"/>
</hbox>
</columns>
</grid>
<separator/>
<text value="© 2011"/>
<separator/>
<script type="application/x-javascript">
<![CDATA[
var objXMLDoc = document.implementation.createDocument('','doc',null);
var objXMLHTTP = new XMLHttpRequest();
objXMLHTTP.open("GET", "file://D:/xmlparserinxul/final.xml", false);
objXMLHTTP.send(null);
objXMLDoc = objXMLHTTP.responseXML;
var objNodeList = objXMLDoc.getElementsByTagName("PDE-Identity");
for (var i=0; i<objNodeList.length; i++){
var menuPopup=document.getElementById('Popup');
var menu1=document.createElement("menuitem");
menu1.setAttribute("label",'objNodeList');
menuPopup.appendChild(menu1);
}
var x = objXMLDoc.getElementsByTagName("CONTACT");
i=0;
function init()
{
var str=x[i].getElementsByTagName("PDE-Identity")[0].childNodes[0].nodeValue;
document.getElementById("pde").value=str;
var str=x[i].getElementsByTagName("FirstName")[0].childNodes[0].nodeValue;
document.getElementById("fname").value=str;
var str=x[i].getElementsByTagName("LastName")[0].childNodes[0].nodeValue;
document.getElementById("lname").value=str;
/*var str=x[i].getElementsByTagName("Type")[0].childNodes[0].nodeValue;
document.getElementById("gmail").value=str;
var str=x[i].getElementsByTagName("Type")[0].childNodes[0].nodeValue;
document.getElementById("yahoo").value=str;
var str=x[i].getElementsByTagName("Type")[0].childNodes[0].nodeValue;
document.getElementById("alcatel-lucent").value=str; */
var str=x[i].getElementsByTagName("URL")[0].childNodes[0].nodeValue;
document.getElementById("facebook").value=str;
var str=x[i].getElementsByTagName("Facebook-ID")[0].childNodes[0].nodeValue;
document.getElementById("fid").value=str;
}
function next()
{
document.getElementById('facebook').value='';
document.getElementById('fid').value='';
//alert('fool');
if (i<x.length-1)
{
i++;
init();
}
}
function previous()
{
document.getElementById('facebook').value='';
document.getElementById('fid').value='';
if (i>0)
{
i--;
init();
}
}
]]>
</script>
</window>
我的XML文件:
<?xml version="1.0" encoding="UTF-8"?>
<CONTACTS>
<CONTACT>
<PDE-Identity>N65539</PDE-Identity>
<FirstName>Arun_niit</FirstName>
<LastName>Arun_niit</LastName>
<Facebook-ID/>
<EMAIL>
<Type>yahoo</Type>
<Value>nura_ie@yahoo.co.in</Value>
</EMAIL>
</CONTACT>
<CONTACT>
<PDE-Identity>N65546</PDE-Identity>
<FirstName>FodenBen'</FirstName>
<LastName>Ben' Foden</LastName>
<URL>http://www.facebook.com/profile.php?id=100002440474277</URL>
<Facebook-ID>100002440474277</Facebook-ID>
<EMAIL/>
</CONTACT>
<CONTACT>
<PDE-Identity>N65553</PDE-Identity>
<FirstName>GhorbelMahmoud</FirstName>
<LastName>Mahmoud Ghorbel</LastName>
<Facebook-ID/>
<EMAIL>
<Type>alcatel-lucent</Type>
<Value>mahmoud.ghbel@alcatel-lucent.com</Value>
</EMAIL>
</CONTACT>
<CONTACT>
<PDE-Identity>N65560</PDE-Identity>
<FirstName>keyankarthik</FirstName>
<LastName>karthik keyan</LastName>
<Facebook-ID/>
<EMAIL>
<Type>yahoo</Type>
<Value>karthye@yahoo.co.in</Value>
</EMAIL>
</CONTACT>
<CONTACT>
<PDE-Identity>N65567</PDE-Identity>
<FirstName>Rangarajkarthik</FirstName>
<LastName>karthik Rangaraj</LastName>
<Facebook-ID/>
<EMAIL>
<Type>gmail</Type>
<Value>kart06@gmail.com</Value>
<Type>yahoo</Type>
<Value>karthikngaraj@yahoo.com</Value>
</EMAIL>
</CONTACT>
<CONTACT>
<PDE-Identity>N65576</PDE-Identity>
<FirstName>ReddyAkky</FirstName>
<LastName>Akky Reddy</LastName>
<Facebook-ID/>
<EMAIL>
<Type>gmail</Type>
<Value>akkiredch@gmail.com</Value>
</EMAIL>
</CONTACT>
<CONTACT>
<PDE-Identity>N65583</PDE-Identity>
<FirstName>SandfordFrankie</FirstName>
<LastName>Frankie Sandford</LastName>
<URL>http://www.facebook.com/FrankieSandfordApprovedPage</URL>
<Facebook-ID/>
<EMAIL/>
</CONTACT>
<CONTACT>
<PDE-Identity>N65590</PDE-Identity>
<FirstName>TheSatsRochelle</FirstName>
<LastName>Rochelle TheSats</LastName>
<URL>http://www.facebook.com/profile.php?id=100002487211054</URL>
<Facebook-ID>100002487211054</Facebook-ID>
<EMAIL/>
</CONTACT>
<CONTACT>
<PDE-Identity>N65597</PDE-Identity>
<FirstName>KumarVeera</FirstName>
<LastName>Vea_Kumar</LastName>
<Facebook-ID/>
<EMAIL>
<Type>yahoo</Type>
<Value>KURg_81@yahoo.com</Value>
</EMAIL>
</CONTACT>
</CONTACTS>
推荐答案
我认为您正在混合使用XUL和XML格式. XUL是一种 XML用户界面语言，表示它以XML格式描述了使用界面.
getElementsByTagName和getElementById函数旨在通过其ID或标记名称访问XUL元素(即UI元素).
您不能/应该使用这些功能修改XML数据.要使用javascript处理XML数据，您应该使用 E4X .您可以在此处找到不错的教程.您应该找到内部所需的解决方案.
I think you are mixing up XUL and the XML format. XUL is a XML User Interface Language which mean that it describes the Use interface in an XML format.
The getElementsByTagName and getElementById functions aim at accessing XUL elements, i.e. UI elements, through their ids or tag name.
You cannot/shoudn't modify XML data using these functions. To process XML data in javascript you should use E4X. You can find a nice tutorial here. You should find the solution to what you need inside.
顺便说一句，由于XML数据中两个同级节点的顺序并不重要，我建议您为每个电子邮件地址创建一个包含电子邮件值和类型的父节点:
By the way, since the order of two siblings node in a XML data is not important, I would suggest you, for each Email address to create a parents node including the email value and the type:
<EMAILS>
<EMAIL>
<Type>gmail</Type>
<Value>kart06@gmail.com</Value>
</EMAIL>
<EMAIL>
<Type>yahoo</Type>
<Value>karthikngaraj@yahoo.com</Value>
</EMAIL>
</EMAILS>
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