scala scala.io.Source.fromFile读取文件报错：MalformedInputException: Input length = 1

val file1 = scala.io.Source.fromFile("D:/IDEAWorkSpace/SparkJob/input.txt").mkString
      println(file1)
      val sss = scala.io.Source.fromFile(new java.io.File("D:/IDEAWorkSpace/SparkJob/input.txt")).getLines
      val aa = sss.toList
      for(line <-aa ){
        println(line)
      }

IO Exceptionjava.nio.charset.MalformedInputException: Input length = 1

这个错误的原因是因input.txt文件的编码格式不对   改为UTF8后正常