URGENT!!! Java Gurus Please Help with adf issue!

Question

PLEASE SEE MY LATEST POST BELOW TIMO'S RESPONSE. THE REQUIREMENT HAS CHANGED. THAT IS THE ISSUE I AM LOOKING A SOLUTION FOR.
Hello All,
We have a requirement where our adf/jsf app needs to pick an EXCEL file from the server where the application is deployed. The sequence is :
User comes to the page
Clicks on "Open EXCEL" button
EXCEL file located in the c:/ of the server opens up.
How can this be done? I do not see any coding needed because the EXCEL file is being opened as is (and after user views it he closes the file) and the data is not being transferred to the jspx page.
*We are totally flexible in how this is implemented - ie, using button, link , html etc etc. What ever works!!!!*
Thanks,
Edited by: user12054715 on Aug 17, 2010 8:54 PM
Edited by: user12054715 on Aug 18, 2010 4:11 PM
Edited by: user12054715 on Aug 18, 2010 4:13 PM

Answer 1

Hello Timo,
I am using 10.1.3g so your response is not going to help me.
However, I have another question that I have already posted on the Forum. Please help me...
Requirement:
*1. Java application should be able to write "Hello World" in the excel file, when the user opens it.*
I CAN DO THIS WITH THE FOLLOWING CODE:
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("newSheet");
HSSFRow row = sheet.createRow(1);
row.createCell(1).setCellValue("HelloWorld!!!!!!!!!");
*2. A "Write To Excel" button on jsf page opens a dialog asking user to Save or Open the excel file. (user can save the file anywhere on his machine)*
I CAN DO THIS WITH THE FOLLOWING CODE:
In jsf:
<af:commandButton text="Download" action="#{myBackingBean.writeToExcel}" useWindow="true"/>
In backing bean:
public static void writeToExcel() throws IOException
String filename = "workbook.xls";
// //Setup the output
String contentType = "application/vnd.ms-excel";
FacesContext fc = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse)fc.getExternalContext().getResponse();
response.setHeader("Content-disposition", "attachment; filename=" + filename);
response.setContentType(contentType);
PrintWriter out = response.getWriter();
BOTTLENECK: When the user opens the excel how do I show "HelloWorld!!!!!!!!!" ?