save Excel data to database

[Nash kumar]

I am a java beginner. I have the below file that reads excel file. Excel file has nine columns and I created a DB Table with 9 columns. I would like to read the excel file except the first row and write to database table. How to achieve this.

import java.io.FileInputStream;
import java.util.Iterator;
import java.util.Vector;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

public class ReadExcelFile {

        public static void main(String[] args) {

                String fileName = "C:\\excelFile.xls";
                Vector dataHolder = ReadCSV(fileName);
                printCellDataToConsole(dataHolder);
        }

        public static Vector ReadCSV(String fileName) {
                Vector cellVectorHolder = new Vector();

                try {
                        FileInputStream myInput = new FileInputStream(fileName);

                        POIFSFileSystem myFileSystem = new POIFSFileSystem(myInput);

                        HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem);

                        HSSFSheet mySheet = myWorkBook.getSheetAt(0);

                        Iterator rowIter = mySheet.rowIterator();

                        while (rowIter.hasNext()) {
                                HSSFRow myRow = (HSSFRow) rowIter.next();
                                Iterator cellIter = myRow.cellIterator();
                                Vector cellStoreVector = new Vector();
                                while (cellIter.hasNext()) {
                                        HSSFCell myCell = (HSSFCell) cellIter.next();
                                        cellStoreVector.addElement(myCell);
                                }
                                cellVectorHolder.addElement(cellStoreVector);
                        }
                } catch (Exception e) {
                        e.printStackTrace();
                }
                return cellVectorHolder;
        }

        private static void printCellDataToConsole(Vector dataHolder) {

                for (int i = 0; i < dataHolder.size(); i++) {
                        Vector cellStoreVector = (Vector) dataHolder.elementAt(i);
                        for (int j = 0; j < cellStoreVector.size(); j++) {
                                HSSFCell myCell = (HSSFCell) cellStoreVector.elementAt(j);
                                String stringCellValue = myCell.toString();
                                
                                System.out.print(stringCellValue + "\t\t");
                        }
                        System.out.println();
                }
        }
}

[J. Kevin Robbins]

There are probably several ways to do this, but personally, I would create a JavaBean that represents each of the columns in your database record, populate that bean with the values you've pulled from the spreadsheet, and then pass that bean to a DAO that will do the insert or update.

That's just my two cents worth. I'll be interested in seeing what other solutions are recommended.

[Paul Clapham]

Yes, there are many different ways of arranging for your data to be written to a database.

But none of those ways are going to care that you got that data from an Excel spreadsheet. In other words, the fact that your data came from Excel is irrelevant. Once you've got it out of Excel, just pick one of those ways and write the data to the database.

If you don't know any ways of writing to a database, let me recommend the JDBC tutorial.

[Nash kumar]

Thank for the reply. I know how to use JDBC to insert values. Please help me how to save each cell value into a variable in order to insert them. Thank you.

[J. Kevin Robbins]

What have you tried so far? Exactly what are you not clear on?

Show us some code. I think we've given you enough to at least take a stab at it.