Kotlin:
XML 다루기

import javax.xml.parsers.DocumentBuilderFactory
import org.w3c.dom.Document

fun parseXml(xmlData: String): Document {
    val dbFactory = DocumentBuilderFactory.newInstance()
    val dBuilder = dbFactory.newDocumentBuilder()
    return dBuilder.parse(xmlData.byteInputStream())
}

import javax.xml.transform.TransformerFactory
import javax.xml.transform.dom.DOMSource
import javax.xml.transform.stream.StreamResult
import org.w3c.dom.Document
import java.io.StringWriter

fun convertDocumentToString(doc: Document): String {
    val transformer = TransformerFactory.newInstance().newTransformer()
    val result = StringWriter()
    transformer.transform(DOMSource(doc), StreamResult(result))
    return result.toString()
}