1.传入多个参数
val result = spark.read.text("hdfs://hdfs-name/user/aa.txt","hdfs://hdfs-name/test/bb.txt")
2.正则
val result = spark.read.text("hdfs://hdfs-name/user/*")
3.文件列表
val path = "hdfs://hdfs-name/user/*.txt"
val path2 = "hdfs://hdfs-name/test/*.txt"
val arrPath = Array(path, path2)
val ds = spark.read.textFile(arrPath:_*)