Updating xml using xpath
In below code we read email address of employee having employee id = 3333.Also we have specified APIs to read an XML node and a nodelist.Document Builder Instance()Document Builder() def input Stream = new Byte Array Input Stream(songs.bytes) def document = builder.parse(input Stream) def output = new String Writer() def converter = new Dom To Groovy(new Print Writer(output)) (1) converter.print(document) (2) String xml Recovered = new Groovy Shell() .evaluate(""" def writer = new String Writer() def builder = new Markup Builder(writer) builder.$ return String() """) (3) assert new Xml Slurper().parse Text(xml Recovered)title.text() == 'Here I go' (4) is that when former creates the nodes they won’t be available until the document’s been evaluated again, so you should parse the transformed document again in order to be able to see the new nodes.For demo, let us consider an xml file that holds information of employees. In order to understand XPath, first we need to understand basics of DOM parsing in Java.Java provides powerful implementation of domparser in form of below API.
GPath is a path expression language integrated into Groovy which allows parts of nested structured data to be identified.
There are other useful expressions that you can use to query the data.
Read this w3school page for more details: are few examples of using different expressions of xpath to fetch some information from xml document.
xml ed -N my=urn:jboss:domain:2.2 -u "_:host/management/security-realms/security-realm[@name='Undertow Realm']/server-identities/ssl/keystore/@path" -v "test" Wildfly\wildfly-8.2.0. A More Convenient Solution XML documents can also use different namespace prefixes, on any element in the document.
In order to handle namespaces with greater ease, XMLStarlet (versions 1.2.1 ) will use the namespace prefixes declared on the root element of the input document.First, we need to create a document builder using In above code, we are parsing an XML file from filesystem.