也许这是有用的-

val path  = getClass.getResource("/header_footer_file.txt").getPath
    /**
      * File content - header_footer_file.txt
      * ---------------------------------------
      * 04/11/2020
      *
      * name;age;id
      * asdildsh;12;1
      * ram;13;2
      * oma;23;3
      * radahea;14;4
      * hellohow
      */
    val stringDS = spark.read.text(path).as(Encoders.STRING)
        .filter(s => s.contains(";"))
     stringDS.show(false)
    /**
      * +-------------+
      * |value        |
      * +-------------+
      * |name;age;id  |
      * |asdildsh;12;1|
      * |ram;13;2     |
      * |oma;23;3     |
      * |radahea;14;4 |
      * +-------------+
      */

val df = spark.read
      .option("sep", ";")
      .option("inferSchema", "true")
      .option("header", "true")
      .option("nullValue", "null")
      .csv(stringDS)

    df.show(false)
    df.printSchema()

    /**
      * +--------+---+---+
      * |name    |age|id |
      * +--------+---+---+
      * |asdildsh|12 |1  |
      * |ram     |13 |2  |
      * |oma     |23 |3  |
      * |radahea |14 |4  |
      * +--------+---+---+
      *
      * root
      * |-- name: string (nullable = true)
      * |-- age: integer (nullable = true)
      * |-- id: integer (nullable = true)
      */