js操作xml

参考：http://www.w3school.com.cn/xmldom/index.asp

 

<script type="text/javascript">

 // 加载xml文档
 loadXML =

 function (xmlFile) {
  var xmlDoc;
  if (window.ActiveXObject) {
   xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
   xmlDoc.async = false;
   xmlDoc.load(xmlFile);
  } else if (document.implementation&&document.implementation.createDocument) {
   xmlDoc = document.implementation.createDocument('', '', null);
   xmlDoc.load(xmlFile);
  } else{
   return null;
  }
  return xmlDoc;
 }

 // 首先对xml对象进行判断
 checkXMLDocObj =

 function (xmlFile) {
  var xmlDoc = loadXML(xmlFile);
  if (xmlDoc==null) {
   alert('您的浏览器不支持xml文件读取,于是本页面禁止您的操作,推荐使用IE5.0以上可以解决此问题!');
   window.location.href='/Index.aspx';
  }
  return xmlDoc;
 }

 // 然后开始获取需要的Login/Weapon/W的第一个节点的属性值
 var xmlDoc = checkXMLDocObj('/EBS/XML/Login.xml');
 var v = xmlDoc.getElementsByTagName('Login/Weapon/W')[0].childNodes.getAttribute('Text');
 initializeSelect =

 function (oid, xPath) {
  var xmlDoc = checkXMLDocObj('/EBS/XML/Login.xml');
  var n;
  var l;
  var e = $(oid);
  if (e!=null) {
   n = xmlDoc.getElementsByTagName(xPath)[0].childNodes;
   l = n.length;
   for (var i=0; i<l; i++) {
    var option = document.createElement('option');
    option.value = n[i].getAttribute('Value');
    option.innerHTML = n[i].getAttribute('Text');
    e.appendChild(option);
   }
  }
 }
</script>

<script type="text/javascript">

 var doc = new ActiveXObject("MSXML2.DOMDocument");

 function writeXML() {
  // var doc = new ActiveXObject("Msxml2.DOMDocument");
  // doc.load("tmp.xml");
  var doc = new ActiveXObject("MSXML2.DOMDocument");
  var p = doc.createProcessingInstruction("xml","version='1.0' encoding='gb2312'");
  doc.appendChild(p);
  var root = doc.createNode(1,"中国","");
  doc.appendChild(root);
  var elem=doc.createNode(1,"省","");
  root.appendChild(elem);
  var att=doc.createAttribute("名称");
  att.value="福建";
  elem.setAttributeNode(att);
  var ele1=doc.createNode(1,"城市","");
  ele1.text="厦门";
  elem.appendChild(ele1);
  var ele2=doc.createNode(1,"城市","");
  ele2.text="石狮";
  elem.appendChild(ele2);
  var ele3=doc.createNode(1,"城市","");
  ele3.text="晋江";
  elem.appendChild(ele3);
  var elem=doc.createNode(1,"省","");
  root.appendChild(elem);
  var att=doc.createAttribute("名称");
  att.value="江苏";
  elem.setAttributeNode(att);
  var elem=doc.createNode(1,"省","");
  root.appendChild(elem);
  var att=doc.createAttribute("名称");
  att.value="安徽";
  elem.setAttributeNode(att);
  doc.save("c://china.xml");
 }

 function readXML() {
  var doc = new ActiveXObject("MSXML2.DOMDocument");
  doc.load ("c://china.xml")
  var list = doc.selectNodes("/中国/省[@名称='福建']/城市")
  for (var i=0;i<list.length;i++) {
   alert(list[i].text);
  }
 }

</script>

<input type=button value="写入XML" onclick="writeXML()" id=button1 name=button1>
<input type=button value="读取XML" onclick="readXML()" id=button2 name=button2>