JS 解析Xml

 loadXML = function (xmlString) {
     var xmlDoc = null;
     //判断浏览器的类型
     //支持IE浏览器
     if (!window.DOMParser && window.ActiveXObject) {   //window.DOMParser 判断是否是非ie浏览器
         var xmlDomVersions = ['MSXML.2.DOMDocument.6.0', 'MSXML.2.DOMDocument.3.0', 'Microsoft.XMLDOM'];
         for (var i = 0; i < xmlDomVersions.length; i++) {
             try {
                 xmlDoc = new ActiveXObject(xmlDomVersions[i]);
                 xmlDoc.async = false;
                 xmlDoc.loadXML(xmlString); //loadXML方法载入xml字符串
                 break;
             } catch (e) {
             }
         }
     }
         //支持Mozilla浏览器
     else if (window.DOMParser && document.implementation && document.implementation.createDocument) {
         try {
             /* DOMParser 对象解析 XML 文本并返回一个 XML Document 对象。
             * 要使用 DOMParser，使用不带参数的构造函数来实例化它，然后调用其 parseFromString() 方法
             * parseFromString(text, contentType) 参数text:要解析的 XML 标记 参数contentType文本的内容类型
             * 可能是 "text/xml" 、"application/xml" 或 "application/xhtml+xml" 中的一个。注意，不支持 "text/html"。
             */
             domParser = new DOMParser();
             xmlDoc = domParser.parseFromString(xmlString, 'text/xml');
         } catch (e) {
         }
     }
     else {
         return null;
     }

     return xmlDoc;
 }

调用方式：

 var strDataXml = loadXML(sRtn);

 var rooms = strDataXml.getElementsByTagName("Room");
 for (i = 0; i < rooms.length; i++) {
     var arrRoom = new Array
     arrRoom[0] = rooms[i].getElementsByTagName("RoomGUID")[0].text;
     arrRoom[1] = rooms[i].getElementsByTagName("RoomInfo")[0].text;
     arrRoom[2] = rooms[i].getElementsByTagName("CstName")[0].text;
     arrRoom[3] = rooms[i].getElementsByTagName("BldArea")[0].text;
     arrRoom[4] = rooms[i].getElementsByTagName("TnArea")[0].text;
     arrRoom[5] = rooms[i].getElementsByTagName("AreaStatus")[0].text;
     arrRoom[6] = rooms[i].getElementsByTagName("BldCjPrice")[0].text;
     arrRoom[7] = rooms[i].getElementsByTagName("TnCjPrice")[0].text;
     arrRoom[8] = rooms[i].getElementsByTagName("RmbHtTotal")[0].text;
     arrRoom[9] = rooms[i].getElementsByTagName("QSDate")[0].text;
     arrRoom[10] = rooms[i].getElementsByTagName("alterType")[0].text;
     arrRoom[11] = rooms[i].getElementsByTagName("alterDate")[0].text;

     arrRoom[12] = rooms[i].getElementsByTagName("TradeGUID")[0].text;
     arrRoom[13] = rooms[i].getElementsByTagName("ContractGUID")[0].text;

     AddRoomToList(arrRoom)
 }