RDD數據將被轉換爲數據幀。但我無法這樣做。 ToDf不工作,我也嘗試使用數組RDD到數據框。請告知me.This程序是一個用於解析一個示例Excel使用階和火花rdd字符將被轉換爲數據幀
import java.io.{File, FileInputStream}
import org.apache.poi.xssf.usermodel.XSSFCell
import org.apache.poi.xssf.usermodel.{XSSFSheet, XSSFWorkbook}
import org.apache.poi.ss.usermodel.Cell._
import org.apache.spark.sql.SQLContext
import org.apache.spark.SparkConf
import org.apache.spark.SparkContext
import org.apache.spark.sql.types.{ StructType, StructField, StringType, IntegerType };
object excel
{
def main(args: Array[String]) =
{
val sc = new SparkContext(new SparkConf().setAppName("Excel Parsing").setMaster("local[*]"))
val file = new FileInputStream(new File("test.xlsx"))
val wb = new XSSFWorkbook(file)
val sheet = wb.getSheetAt(0)
val rowIterator = sheet.iterator()
val builder = StringBuilder.newBuilder
var column = ""
while (rowIterator.hasNext())
{
val row = rowIterator.next();
val cellIterator = row.cellIterator();
while (cellIterator.hasNext())
{
val cell = cellIterator.next();
cell.getCellType match {
case CELL_TYPE_NUMERIC ⇒builder.append(cell.getNumericCellValue + ",")
case CELL_TYPE_BOOLEAN ⇒ builder.append(cell.getBooleanCellValue + ",")
case CELL_TYPE_STRING ⇒ builder.append(cell.getStringCellValue + ",")
case CELL_TYPE_BLANK ⇒ builder.append(",")
}
}
column = builder.toString()
println(column)
builder.setLength(0)
}
val data= sc.parallelize(column)
println(data)
}
}
你是不是做與你在這裏列出的代碼... –
哦星火什麼,我沒看出來有在底部。無論如何,@Shivansh Srivastava已經給你答案。 –