XML DOM nodeName 属性

定义和用法

nodeName 属性返回节点的名称，根据其类型。

语法

nodeObject.nodeName

Beispiel

Beispiel 1

Das folgende Code lädt "books.xml" in xmlDoc und zeigt den Knotenname und Knotenart des Wurzelknotens an:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   }
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
    var xmlDoc = xml.responseXML;
    document.getElementById("demo").innerHTML =
    "Knotenname: " + xmlDoc.nodeName +"
    " ( Knotenart: " + xmlDoc.nodeType + ")";
}

Try It Yourself

Beispiel 2

Zeige alle Elemente Knotenname und Knotenwert an

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
        myFunction(this);
    }
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
    var x, y, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.documentElement;
    y = xmlDoc.documentElement.childNodes;
    for(i = 0; i < y.length; i++) {
        if (y[i].nodeType != 3) {
            txt += "Knotenname: " + y[i].nodeName +"
            " (Wert: " + y[i].childNodes[0].nodeValue + ")<br>";
        }
        for(z = 0; z < y[i].childNodes.length; z++) {
            if (y[i].childNodes[z].nodeType != 3) {
                txt += "Knotenname: " + y[i].childNodes[z].nodeName +"
                " (Wert: " + y[i].childNodes[z].childNodes[0].nodeValue + ")<br>";
            }
        }
    }
    document.getElementById("demo").innerHTML = 
    "Knotenname: " + xmlDoc.nodeName +"
    " (value: " + xmlDoc.childNodes[0].nodeValue + ")<br>" +
    "Nodename: " + x.nodeName + 
    " (value: " + x.childNodes[0].nodeValue + ")<br>" +
    txt;
}

Try It Yourself