js+获取xml值

let xmlString = "<root><element>value</element></root>";
let parser = new DOMParser();
let xmlDoc = parser.parseFromString(xmlString, "application/xml");

// 获取元素值
let elementValue = xmlDoc.getElementsByTagName("element")[0].childNodes[0].nodeValue;
console.log(elementValue); // 输出: value

let xhr = new XMLHttpRequest();
xhr.open("GET", "example.xml", false); // 同步请求
xhr.send();

if (xhr.status === 200) {
    let xmlDoc = xhr.responseXML;
    let elementValue = xmlDoc.getElementsByTagName("element")[0].childNodes[0].nodeValue;
    console.log(elementValue);
} else {
    console.error("Failed to load XML document.");
}

fetch('example.xml')
    .then(response => response.text())
    .then(str => (new window.DOMParser()).parseFromString(str, "application/xml"))
    .then(xmlDoc => {
        let elementValue = xmlDoc.getElementsByTagName("element")[0].childNodes[0].nodeValue;
        console.log(elementValue);
    })
    .catch(error => console.error('Error fetching XML:', error));

fetch('example.xml')
    .then(response => response.text())
    .then(str => (new window.DOMParser()).parseFromString(str, "application/xml"))
    .then(xmlDoc => {
        let elements = xmlDoc.getElementsByTagName("element");
        for (let i = 0; i < elements.length; i++) {
            console.log(elements[i].childNodes[0].nodeValue);
        }
    })
    .catch(error => console.error('Error fetching XML:', error));