XML 解析 -- IE ,Chrome

通用的method

<script type="text/javascript">
        //for chrome, attach method to XMLDocument
        if (!window.ActiveXObject) {
            XMLDocument.prototype.selectSingleNode = Element.prototype.selectSingleNode = function (xpath) {
                var x = this.selectNodes(xpath)
                ) return null;
                ];
            }
            XMLDocument.prototype.selectNodes = Element.prototype.selectNodes = function (xpath) {
                var xpe = new XPathEvaluator();
                var nsResolver = xpe.createNSResolver(this.ownerDocument == null ? this.documentElement : this.ownerDocument.documentElement);
                , null);
                var found = [];
                var res;
                while (res = result.iterateNext())
                    found.push(res);
                return found;
            }
        }

        function GetXMLDocument(xml) {
            if (typeof window.ActiveXObject != "undefined" && new window.ActiveXObject("Microsoft.XMLDOM")) {
                var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
                xmlDoc.async = false;
                xmlDoc.loadXML(xml);
                return xmlDoc;
            } else if (typeof window.DOMParser != "undefined") {
                return (new window.DOMParser()).parseFromString(xml, "text/xml");
            } else {
                return null;
            }
        }

        // get xml node text
        function GetXMLNodeText(xmlNode) {
            if (xmlNode == null) return "";
            var rt;
            if (window.ActiveXObject)    // IE
            {
                rt = xmlNode.text;
            }
            else {
                // FireFox, Chrome, ...
                rt = xmlNode.textContent;
            }
            if (rt == null) rt = xmlNode.nodeValue;    // XML DOM
            return rt;
        }
    </script>

Parse XML method

调用以上方法来解析“/NewDataSet/Table”型XML.

Example : <NewDataSet><Table><ID>1</ID><Name>test user 1</Name></Table><Table><ID>2</ID><Name>test user 2</Name></Table></NewDataSet>

function SelectorOption(id, name) {
            this.ID = id;
            this.Name = name;
        }

        function ParseDataSetXML(xml) {
            var options = [];
            var xmlDoc = GetXMLDocument(xml);
            if (xmlDoc) {
                var items = xmlDoc.selectNodes("/NewDataSet/Table");
                ; j < items.length; j++) {
                    var id = GetXMLNodeText(items[j].selectSingleNode("ID"));
                    var name = GetXMLNodeText(items[j].selectSingleNode("Name"));
                    options.push(new SelectorOption(id, name));
                }
            }
            return options;
        }

实际应用中可通过调用function ParseDataSetXML来解析“/NewDataSet/Table”型XML 获得一个数组，attribute ID 对应节点“ID”, attribute Name 对应节点“Name”

function ReleaseXML() {
            var insertXML = document.getElementById("txt").value;
            var items = ParseDataSetXML(insertXML);
            ; j < items.length; j++) {
                document.getElementById("lbSelected").options.add(new Option(items[j].Name, items[j].ID));
            }
        }