Setting filename sending output to Excel form servlet

Question

Hi All
I am successfully sending my tab separated output to Excel from the servlet using the following:
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition","inline;filename=statistics.txt");
The output is automatically opened in a new window using excel.
However the sheet in excel is named based on the url of the servlet it came from, not statistics as i have specified. The main issue with this, apart from the niceness of it, is that if the user then generates another excel output from the same servlet then the new file is not loaded as excel already has a file by that name open and can't handle duplicate names.
I have seen many references to this syntax, but it doesn't quite work for me.
I hope someone can clarify what i am missing here.
Thanks in advance.

Answer 1

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFCell;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import java.io.IOException;
* @author Ravi Desu (rdesu)
* @version 1.0
* $Id: ExcelGen.java, Jun 1, 2004 4:43:13 PM rdesu Exp $
public class ExcelGen extends HttpServlet {
protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("Worksheet 1");
HSSFRow row = sheet.createRow((short) 0);
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("This is text in a cell");
httpServletResponse.setContentType("application/vnd.ms-excel");
workbook.write(httpServletResponse.getOutputStream());
In your web.xml:
<servlet>
<servlet-name>ExcelGenSrvlt</servlet-name>
<servlet-class>ExcelGen</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ExcelGenSrvlt</servlet-name>
<url-pattern>/ExcelGen.xls</url-pattern>
</servlet-mapping>
download the org.apache.poi jars from
http://www.apache.org/dyn/closer.cgi/jakarta/poi/
http://jakarta.apache.org/poi/