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