用javascript读xml的例子

2006年9月8日 14:40:20 发布:yaosansi

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1.xml文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<zip>
<city>
mycity</city>
<state>mystate</state>
</zip>

2.读此xml的javascript例子：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script language="javascript" type="text/javascript">

var url = "NewFile.xml";
String.prototype.Trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); }

var xmlDoc;

var moz = (typeof document.implementation != 'undefined')
&& (typeof document.implementation.createDocument != 'undefined');
var ie = (typeof window.ActiveXObject != 'undefined');

function importXML(file) {

if (moz) {
xmlDoc = document.implementation.createDocument("", "doc", null);

} else if (ie) {
   xmlDoc = new ActiveXObject("MSXML2.DOMDocument.3.0");
   xmlDoc.async = false;
   while(xmlDoc.readyState != 4) {};
}

xmlDoc.load(file);
}
importXML(url);

function updateCityState(){
if (moz) {
var zip = xmlDoc.getElementsByTagName("zip")[0];
var city;
    var _city = zip.getElementsByTagName("city")[0].firstChild.nodeValue;
      if (_city)   city = _city.Trim();

     var state;
     var _state=zip.getElementsByTagName("state")[0].firstChild.nodeValue;
     if(_state) state = _state.Trim();

      document.getElementById('city').value = city;
      document.getElementById('state').value = state;

} else if (ie) {
   var city;
    var _city = xmlDoc.selectSingleNode("/zip/city");
      if (_city) city = _city.text;
     var state;
     var _state=xmlDoc.selectSingleNode("/zip/state");
     if(_state) state = _state.text;
       document.getElementById('city').value = city;
      document.getElementById('state').value = state;
}
}
</script>
</head>
<body>
<form action="post">

</p>
City:
<input type="text" name="city" id="city" />

State:
<input type="text" size="2" name="state" id="state" />

</form>
</body>
</html>

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