Building an XML Document Using JavaScript DOM Methods
1. Create the XML Document:
Initiate the XML document using document.implementation.createDocument(). This method provides a foundation for building the XML structure.
var xmlDoc = document.implementation.createDocument("", "", null);
2. Construct the Structure:
Build the desired XML structure element-by-element using JavaScript’s DOM methods:
- createElement(tagName): Creates a new XML element with the specified tag name.
- setAttribute(attributeName, attributeValue) (Optional): Sets an attribute on an element.
- appendChild(childElement): Adds a child element to an existing element.
- createTextNode(text): Creates a text node to hold textual content within an element.
var root = xmlDoc.createElement('root');
var child = xmlDoc.createElement('child');
child.setAttribute('attribute', 'value');
child.appendChild(xmlDoc.createTextNode('data'));
root.appendChild(child);
xmlDoc.appendChild(root);
3 .Serialize the XML Document:
Employ XMLSerializer to convert the constructed XML document object into a string representation.
var serializer = new XMLSerializer();
var xmlString = serializer.serializeToString(xmlDoc);
4 .Send the Serialized String:
Utilize .ajax() to send the serialized XML string (containing your complete structure) to the server. Remember to set contentType to ‘text/xml‘.
$.ajax({
// ... same options as Approach 1, using xmlString instead of pre-crafted string
});
5 .Handle Server Response:
As in Approach 1, define success and error callback functions within .ajax() to appropriately handle the server’s response or any errors that might occur during the request.
Example
Building an XML Document with DOM Methods
// Create the XML document
var xmlDoc = document.implementation.createDocument("", "", null);
var root = xmlDoc.createElement("root");
var child = xmlDoc.createElement("child");
child.textContent = "data";
root.appendChild(child);
xmlDoc.appendChild(root);
// Serialize the XML document to a string
var serializer = new XMLSerializer();
var xmlString = serializer.serializeToString(xmlDoc);
// Send the XML document
$.ajax({
url: 'https://jsonplaceholder.typicode.com/todos',
type: 'POST',
data: xmlString,
contentType: 'text/xml',
success: function (response) {
console.log('Response:', response);
},
error: function (error) {
console.log('Error:', error);
}
});
Output
As with the previous method, the output will generally be the response from the server, which could be a success message, data in XML or JSON format, or an error message. For example:
running in browser console
Creating and Sending an XML Document in JQuery
Creating and sending XML documents with jQuery is a common task in web development, particularly for API or web service interactions that require XML format. This article explores different strategies to efficiently construct, modify, and dispatch XML documents using jQuery.
Table of Content
- Using jQuery’s .ajax() Method with an XML String
- Building an XML Document Using JavaScript DOM Methods
- Choosing the Right Approach:
- Conclusion
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