I have a JSP that creates a CSV file, which works. When I convert the JSP page
to use HSSF instead it produces no output. The JSP just produces a blank page.
With the CSV output the blank JSP popups up and is replaced by the Dialog to
open or save the .csv file.
My JSP is below.
And yes, I have verified that the two header and records Lists contain data.
Thanks.
Dean
<%@ page language="java" %>
<%@ page
import="java.util.*,java.io.OutputStream,org.apache.poi.hssf.usermodel.*" %>
<%
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition","attachment; filename=browselist.xls");
List headers =(List)request.getAttribute("headers");
List records =(List)request.getAttribute("records");
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet();
HSSFFont headerFont = wb.createFont();
headerFont.setFontName(HSSFFont.FONT_ARIAL);
headerFont.setFontHeightInPoints((short) 10);
headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
HSSFCellStyle HeaderStyle = wb.createCellStyle();
HeaderStyle.setFont(headerFont);
int rowNum = 0;
if (headers != null) {
HSSFRow headerRow = sheet.createRow(rowNum++);
Object[] arr = headers.toArray();
for (int i=1; i<arr.length; i++) {
String s = (String)arr[i];
HSSFCell cell = headerRow.createCell((short)i);
cell.setCellValue(s);
}
}
if (records != null) {
Object[] arr = records.toArray();
for (int i=0; i<arr.length; i++) {
String record = (String)arr[i];
HSSFRow recordRow = sheet.createRow(rowNum++);
StringTokenizer st = new StringTokenizer(record,"|");
boolean skip = true;
short cellNum = 0;
while (st.hasMoreTokens()) {
String tok=st.nextToken();
if (skip) {
skip = false;
continue;
}
if(tok.equals(" "))
tok="";
HSSFCell cell = recordRow.createCell(cellNum++);
cell.setCellValue(tok);
}
}
}
OutputStream sos = response.getOutputStream();
wb.write(sos);
sos.close();
%>
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