<%@page contentType="text/html"
import="java.io.*,org.apache.poi.poifs.filesystem.POIFSFileSystem,org.apache.poi
.hssf.record.*,org.apache.poi.hssf.model.*,org.apache.poi.hssf.usermodel.*,org.a
pache.poi.hssf.util.*" %>
Read Excel file
An example of using Jakarta POI's HSSF package to read an excel spreadsheet:
<%
String filename = request.getParameter("xls_filename");
if (filename != null && !filename.equals("")) {
%>
You chose the file <%= filename %>.
It's contents are:
<%
try
{
// create a poi workbook from the excel spreadsheet file
POIFSFileSystem fs =
new POIFSFileSystem(new FileInputStream(filename));
HSSFWorkbook wb = new HSSFWorkbook(fs);
for (int k = 0; k < wb.getNumberOfSheets(); k++)
{
%>
Sheet <%= k %>
<%
HSSFSheet sheet = wb.getSheetAt(k);
int rows = sheet.getPhysicalNumberOfRows();
for (int r = 0; r < rows; r++)
{
HSSFRow row = sheet.getRow(r);
if (row != null) {
int cells = row.getPhysicalNumberOfCells();
%>
ROW <%=
row.getRowNum() %>
<%
for (short c = 0; c < cells; c++)
{
HSSFCell cell = row.getCell(c);
if (cell != null) {
String value = null;
switch (cell.getCellType())
{
case HSSFCell.CELL_TYPE_FORMULA :
value = "FORMULA ";
break;
case HSSFCell.CELL_TYPE_NUMERIC :
value = "NUMERIC value="
+ cell.getNumericCellValue
();
break;
case HSSFCell.CELL_TYPE_STRING :
value = "STRING value="
+ cell.getStringCellValue();
break;
default :
}
%>
<%= "CELL col="
+ cell.getColumnIndex()
+ " VALUE=" + value %>
<%
}
}
}
}
}
}
catch (Exception e)
{
%>
Error occurred: <%= e.getMessage() %>
<%
e.printStackTrace();
}
}
%>