XMLStream阅读器Scala - END_DOCUMENT的正确句柄

import scala.xml.pull._

object XMLStreamExample extends App {
  val xmlString = """<?xml version="1.0"?>
                     |<root>
                     |  <element>Value</element>
                     |</root>""".stripMargin

  val parser = new XMLEventReader(scala.io.Source.fromString(xmlString))

  while (parser.hasNext) {
    parser.next match {
      case EvElemStart(_, _, _) => println("Element started")
      case EvElemEnd(_, _) => println("Element ended")
      case EvText(text) => println(s"Text: $text")
      case EvComment(comment) => println(s"Comment: $comment")
      case EvProcInst(target, inst) => println(s"Processing Instruction: $target $inst")
      case EvEntityRef(name) => println(s"Entity Reference: $name")
      case EvCDATA(cdata) => println(s"CDATA: $cdata")
      case EvEndDocument => println("End of document")
      case _ => // Ignore other events
    }
  }
}

parser.next match {
  case EvEndDocument =>
    println("End of document")
    parser.close() // 释放资源
  case _ =>
    // 处理其他事件
}