查了资料好像都没有办法。只能通过：

def main(args: Array[String]): Unit = {    // 读取参数    var city = args(0)    var input = args(1)    var date = args(2)

下标来获取。不过不确定，去stackoverflow发帖问下。

https://stackoverflow.com/questions/46845292/can-spark-submit-with-named-argument/46845525#46845525

确实不能，如果要的话，就需要自己写代码来解析：

object CommandLineUtil {  def getOpts(args: Array[String], usage: String): collection.mutable.Map[String, String] = {    if (args.length == 0) {      log.warn(usage)      System.exit(1)    }    val (opts, vals) = args.partition {      _.startsWith("-")    }    val optsMap = collection.mutable.Map[String, String]()    opts.map { x =>      val pair = x.split("=")      if (pair.length == 2) {        optsMap += (pair(0).split("-{1,2}")(1) -> pair(1))      } else {        log.warn(usage)        System.exit(1)      }    }    optsMap  }}

val usage = "Usage:  [--citys] [--num]"val optsMap = CommandLineUtil.getOpts(args, usage)val citysValue = optsMap("citys")val numValue = optsMap("num")本文转自轩脉刃博客园博客，原文链接：http://www.cnblogs.com/yjf512/p/7719722.html，如需转载请自行联系原作者