Question

我正在尝试将xml文件的一部分放入javascript数组中。我已经尝试了很多教程，但我无法让它工作。这是我想要使用的xml文件的一部分：

    <answers>
      <answer id="0">hello</answer>
      <answer id="1">goodbye</answer>
    </answers>

我想在javascript数组中使用答案，如：

var FAnswers = new Array("hello","goodbye");

有没有人知道一个简单的小javascript来完成这项工作？

Answer 1

以下功能应该可以解决问题：

function get_answers_from_xml_string(xml_string) {
    // Parse the XML string into a XMLDocument
    var doc = window.DOMParser
                ? new DOMParser().parseFromString(xml_string, 'text/xml')    // Standard
                : new ActiveXObject('Microsoft.XMLDOM').loadXML(xml_string); // IE

    // Find the answer nodes
    var answers_nodes = doc.getElementsByTagName('answer');
    var answers = [];

    // Loop through them and save their text content into an array
    for (var i = 0; i < answers_nodes.length; i++) {
        answers.push(answers_nodes[i].firstChild.data)
    }

    return answers;
}

只需将包含带答案的XML的字符串传递给它，它将返回一个数组：

var xml_string = '<answers><answer id="0">hello</answer><answer id="1">goodbye</answer></answers>';
var answers = get_answers_from_xml_string(xml_string);
// answers == ["hello", "goodbye"]

Answer 2

所以你需要在javascript中解析XML。看看我刚才做的这个例子：

// Some XML, say loaded with AJAX, etc.
var str = '<response><answers><answer id="0">hello</answer><answer id="1">goodbye</answer></answers><data id="2341-63">Test data</data></response>';

var parser, xml;
if (window.DOMParser) {
    parser = new DOMParser();
    xml = parser.parseFromString(str, 'text/xml');
}
else { // IE
    xml = new ActiveXObject('Microsoft.XMLDOM');
    xml.async = false;
    xml.loadXML(str);
}

var nodes = xml.getElementsByTagName('answer');

var i, l = nodes.length, answers = [];
for (i = 0; i < l; i++) {
    answers.push(nodes[i].childNodes[0].nodeValue);
}

console.log(answers) // ["hello", "goodbye"]

Answer 3

根据the answer to this question，您需要做类似的事情（假设您通过XHR加载XML）：

// get XML 
var xml = xhr.responseXML;
var target = new Array();

// get answers
var answers= xml.getElementsByTagName("answer");
for (var i = 0; i < answers.length; i++) {   
    target.push(answers[i].nodeValue);
}

Answer 4

How about this way: The simplest - 

 var xml = "<answers><answer id='0'>hello</answer><answer id='1'>goodbye</answer></answers>";
    document.write (xml);
    var doc = document.getElementsByTagName('answer');
    var arrayAnswers = [];
    for(var i=0, len = doc.length; i < len; i++)
    {
       arrayAnswers.push(doc[i]);
    }
    alert(arrayAnswers[0].innerHTML);
    alert(arrayAnswers[1].innerHTML);

部分xml文件到javascript数组

4 个答案: