java apache poi（第2部分）

Question

cont. on java apache poi (part 1)

• Code

   ... while(rowIterator.hasNext()){ List<String> record = new ArrayList<String>(); row = (XSSFRow)rowIterator.next(); Iterator<Cell> cellIterator = row.cellIterator(); while(cellIterator.hasNext()){ cell = cellIterator.next(); cell.setCellType(Cell.CELL_TYPE_STRING); switch(cell.getCellType()){ case Cell.CELL_TYPE_STRING: record.add(cell.getStringCellValue()); break; case Cell.CELL_TYPE_NUMERIC: record.add(Double.toString (cell.getNumericCellValue())); break; } } readFile(); } public void readFile(){ String ID = record.get(0); System.out.println(ID); } ... 

• From above code, my output is like below:
  ID
  1
  2
  3
  

• My expected output should like this:
  1
  2
  3
  

• My question is how to remove the first row from excel (ID) from the above code?

Answer 1

To skip the first row:

while(rowIterator.hasNext()){

    row = (XSSFRow)rowIterator.next();

    if(row.getRowNum()==0) {
        continue;
    }

    List<String> record = new ArrayList<String>();
    Iterator<Cell> cellIterator = row.cellIterator();
    ...
    readFile();
}

Answer 2

Add rowIterator.next(); above the While loop in the program which ignore the first row.So simple.Hope this helps you.

 **rowIterator.next();**
            while (rowIterator.hasNext())
            {
                Row row = rowIterator.next();
                //For each row, iterate through all the columns
                Iterator<Cell> cellIterator = row.cellIterator();

                while (cellIterator.hasNext())
                {
                    Cell cell = cellIterator.next();
                    //Check the cell type and format accordingly
                    switch (cell.getCellType())
                    {
                        case Cell.CELL_TYPE_NUMERIC:
                            System.out.print(cell.getNumericCellValue() + "t");
                            break;
                        case Cell.CELL_TYPE_STRING:
                            System.out.print(cell.getStringCellValue() + "t");
                            break;
                    }
                }
                System.out.println("");
            }
            file.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }