Scala 方法将 XML 直接漂亮地打印到 java.io.Writer（不是字符串）

如何使用 Scala 方法将 XML 直接漂亮地打印到 java.io.Writer？

scala
import scala.xml._
import java.io.Writer

scala
val xmlData =
  
    
    John Doe
    Scala出版社
  

scala
def printXml(xml: Node, writer: Writer): Unit = {
  val prettyPrinter = new PrettyPrinter(120, 4)
  val formattedXml = prettyPrinter.format(xml)
  writer.write(formattedXml)
}

scala
import scala.xml._
import java.io._
object Main extends App {
  val xmlData =
    
      
      John Doe
      Scala出版社
    
  val writer = new PrintWriter(System.out)
  printXml(xmlData, writer)
  writer.flush()
}