js解析xml chrome

// 创建一个 XML 字符串
const xmlString = `
<library>
  <book id="1">
    <title>JavaScript: The Good Parts</title>
    <author>Douglas Crockford</author>
  </book>
  <book id="2">
    <title>Eloquent JavaScript</title>
    <author>Marijn Haverbeke</author>
  </book>
</library>
`;

// 创建一个 DOMParser 实例
const parser = new DOMParser();

// 解析 XML 字符串
const xmlDoc = parser.parseFromString(xmlString, "application/xml");

// 获取所有 book 元素
const books = xmlDoc.getElementsByTagName("book");

// 遍历并输出每个 book 的信息
for (let i = 0; i < books.length; i++) {
  const title = books[i].getElementsByTagName("title")[0].textContent;
  const author = books[i].getElementsByTagName("author")[0].textContent;
  console.log(`Title: ${title}, Author: ${author}`);
}

// 创建一个 XMLHttpRequest 实例
const xhr = new XMLHttpRequest();

// 配置请求
xhr.open('GET', 'path/to/your/xmlfile.xml', true);

// 设置响应类型为 document
xhr.responseType = 'document';

// 处理响应
xhr.onload = function() {
  if (xhr.status === 200) {
    const xmlDoc = xhr.responseXML;
    const books = xmlDoc.getElementsByTagName("book");
    for (let i = 0; i < books.length; i++) {
      const title = books[i].getElementsByTagName("title")[0].textContent;
      const author = books[i].getElementsByTagName("author")[0].textContent;
      console.log(`Title: ${title}, Author: ${author}`);
    }
  }
};

// 发送请求
xhr.send();

try {
  const xmlDoc = parser.parseFromString(xmlString, "application/xml");
} catch (e) {
  console.error("XML parsing error:", e);
}