身份证号验证

gistfile1.scala

object IDCard {
  case class IDCard(raw: String) {
    def verification(data: String) = {
      val first17 = data.substring(0, 17)
      val seq = for (ch <- first17; weight <- IDCard.WEIGHT) yield ch.getNumericValue * weight
      IDCard.VERIFICATION_CODE(seq.sum % 11)
    }
    
    val normalized = raw.length match {
      case 15 => raw.splitAt(6) match {
        case (left, right) =>
          val data = left + "19" + right
          data + verification(data)
      }
      case 18 => raw
      case _ => throw new RuntimeException("无效的身份证号")
    }
    
    val birth = IDCard.dateFormatter.parse(normalized.substring(6, 14))
    val valid = birth.before(new java.util.Date()) && birth.after(IDCard.dateFormatter.parse("19000101")) &&
    			normalized.matches("""\d{17}\w{1}""") && verification(normalized) == normalized.last
    			
    val gender = Vector('男, '女)(normalized(17).getNumericValue & 0x01)
    val isMale = gender == '男
    val isFemale = gender == '女
    
  }
  object IDCard {
    val WEIGHT = List(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2)
    val VERIFICATION_CODE = List('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2')
    val dateFormatter = new java.text.SimpleDateFormat("yyyyMMdd")
  }
  
}