Question

我需要帮助才能使用JQuery查找和替换xml节点中的值，请在下面提供建议，

var metaData ='<Control Type="Table" ID="4900a2a9-47d7-4d3b-9a35-fdd32b185730"></Control>
        <Control Type="TextBox"  ID="7a499af6-16c1-4fe8-9ea0-fe02e7eef886"></Control>';

在上面的xml结构中我想搜索ID =＆＃34; 4900a2a9-47d7-4d3b-9a35-fdd32b185730＆＃34;并将其替换为ID =＆＃34; 91e3cbe6-8168-40be-bf26-ccdd6acb1e17＆＃34;在JQuery中。请建议。

以下是我的尝试，

var oldID = "4900a2a9-47d7-4d3b-9a35-fdd32b185730";
var newID = "91e3cbe6-8168-40be-bf26-ccdd6acb1e17";
metaData.replace(oldID, newID);

上述代码未成功。

Answer 1

由于您只有xml变量中的字符串，请使用JS .replace()

xml.replace('4900a2a9-47d7-4d3b-9a35-fdd32b185730', '91e3cbe6-8168-40be-bf26-ccdd6acb1e17');

var xml = '<Control Type="Table" ID="4900a2a9-47d7-4d3b-9a35-fdd32b185730"></Control><Control Type="TextBox"  ID="7a499af6-16c1-4fe8-9ea0-fe02e7eef886"></Control>';

var result = xml.replace('4900a2a9-47d7-4d3b-9a35-fdd32b185730', '91e3cbe6-8168-40be-bf26-ccdd6acb1e17');
$("#from").text(xml);
$("#result").text(result);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<b>Before:</b><br/>
<div id='from'></div><br/>
<b>After:</b><br/>
<div id='result'></div>

Answer 2

我不会替换字符串。

＆＃13;

var xml = '<Control Type="Table" ID="4900a2a9-47d7-4d3b-9a35-fdd32b185730"></Control><Control Type="TextBox"  ID="7a499af6-16c1-4fe8-9ea0-fe02e7eef886"></Control>';

var doc = $.parseXML('<root>' + xml + '</root>');
var $root = $(doc);
$root.find('[ID="4900a2a9-47d7-4d3b-9a35-fdd32b185730"]').attr('ID', 'x');
var newxml = xmlToString(doc);
$('#result').text(newxml.substring(6, newxml.length - 7))


//borrowed from http://stackoverflow.com/questions/6507293/convert-xml-to-string-with-jquery
function xmlToString(xmlData) {

    var xmlString;
    //IE
    if (window.ActiveXObject) {
        xmlString = xmlData.xml;
    }
    // code for Mozilla, Firefox, Opera, etc.
    else {
        xmlString = (new XMLSerializer()).serializeToString(xmlData);
    }
    return xmlString;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="result"></div>

＆＃13;

如何在JQuery中查找和替换xml节点值

2 个答案: