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How to Add List Of Nodes In Existing Node Xml In Groovy?

3 minutes read

To add a list of nodes in an existing node XML in Groovy, you can use the XmlSlurper and MarkupBuilder classes. First, you need to parse the existing XML file using XmlSlurper to get the root node. Then, you can use MarkupBuilder to modify the XML by adding a list of nodes to the existing node. Finally, you can write the modified XML back to a file or use it in your program as needed.


How to add nodes with custom attributes to an existing XML document in Groovy?

To add nodes with custom attributes to an existing XML document in Groovy, you can use the XmlSlurper and MarkupBuilder classes. Here's an example code snippet that demonstrates how to achieve this:

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import groovy.xml.*

def xml = '''
<root>
  <item id="1">First item</item>
</root>
'''

def doc = new XmlSlurper().parseText(xml)

// Adding a new node with custom attributes
def newAttributes = [name: "John", age: "30"]
def newNode = new MarkupBuilder().node {
  item(newAttributes, "Second item")
}

doc.appendNode(newNode)

println XmlUtil.serialize(doc)


In this code snippet, we first parse the existing XML document using XmlSlurper. Then, we create a new node with custom attributes using MarkupBuilder. Finally, we append the new node to the existing document and serialize it back to a string using XmlUtil.serialize.


What is the easiest way to add nodes with text content to an existing XML file in Groovy?

The easiest way to add nodes with text content to an existing XML file in Groovy is to use the XmlParser class to parse the existing XML file, add the new nodes with text content, and then use XmlUtil.serialize() to write the modified XML back to the file. Here is an example code snippet demonstrating this process:

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import groovy.xml.XmlUtil

def xmlFile = new File("example.xml")
def xml = new XmlParser().parse(xmlFile)

def newNode = new Node("newNode", "New node text content")

xml.appendNode(newNode)

XmlUtil.serialize(xml, new FileOutputStream(xmlFile))


In this example, the existing XML file "example.xml" is parsed using XmlParser, a new node "newNode" with text content "New node text content" is added to the XML, and then the modified XML is serialized back to the file using XmlUtil.serialize().


How to add nodes with namespaces to an existing XML document in Groovy?

To add nodes with namespaces to an existing XML document in Groovy, you can use the XmlSlurper and XmlUtil classes. Here is an example code snippet that demonstrates how to add a node with a namespace to an existing XML document:

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def xmlText = """
<root>
    <child>Child Node</child>
</root>
"""

def xml = new XmlSlurper().parseText(xmlText)

// Create a new node with a namespace
def namespace = new groovy.xml.Namespace('http://example.com', 'ns1')
def newNode = new Node(namespace, 'newNode', ['attr': 'value'])

// Add the new node to the existing XML document
xml.appendNode(newNode)

// Convert the modified XML document back to a string
def updatedXml = XmlUtil.serialize(xml)

println updatedXml


In this code snippet, we first define a sample XML document as a string xmlText. We then parse the XML document using XmlSlurper. Next, we create a new node with a specified namespace using the Node constructor. We then add this new node to the existing XML document using the appendNode() method. Finally, we convert the modified XML document back to a string using XmlUtil.serialize() and print it out.


This is how you can add nodes with namespaces to an existing XML document in Groovy.

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