File downlaod link concatenates html to file

[g forte]

I use the following code that is at the beginning of my jsp to activate the download dialog box on my jsp I have this one page that will allow file downloads without having to go to another page:

//CHECK TO SEE IF EITHER DOWNFILE OR ZIPFILE VARIABLE EXIST, AND IF THEY DO SET CONTENT TYPE BEFORE SENDING ANY HTML CODE TO THE BROWSER
try{
//CHECK TO SEE IF THE FILE HAS BEEN CLICKED TO DOWNLOAD SINGLE FILE
    if (request.getParameter("downfile") != null)
        {
            String filePath = request.getParameter("downfile");
            File f = new File(filePath);//CREATE AN INSTANCE OF THE FILE CLASS AND POINT IT TO THE LOCATION OF THE DIRECTORY CONTAINING THE FILES
                if (f.exists() && f.canRead()) 
                {
                    response.setContentType ("application/octet-stream");
                    response.setHeader ("Content-Disposition", "attachment;filename=\""+f.getName()+"\"");
                    response.setContentLength((int) f.length());
                    BufferedInputStream fileInputStream = new BufferedInputStream(new FileInputStream(f));
                    int i;
                    out.clearBuffer();
                    while ((i = fileInputStream.read()) != -1) out.write(i);
                        fileInputStream.close();
                        out.flush();
                        response.flushBuffer();
                }
        }
}
catch (Exception e){}

Then I have several links displayed:
[code]
< a class="a" href="main.jsp?downfile=C:\\data\\<%=allfiles[i+1]%>">DOWNLOAD</a>
[code]
I know this isnt a secure way of doing this but I am on a intranet.
The problem I am having now is that when I click on one of the links and download the file and then open it, I get the contents of the file plus concatenated to the end of it is the first few HTML lines of the actual jsp that I downloaded the file from. Before I was just getting the first few lines of html from the jsp, not the actual contents of the downloaded file.
This is an example of what I am getting note this is the actual contents of a text file I download from my app:
This is the contents of the file that I downloaded.//This is where the file contents ends.
This is where the html code is appended.

Any ideas?
TIA!
BTW, I went to ApacheJServ because they wont let me use tomcat

[Bear Bibeault]

Is there HTML content after the code you displayed above? If so, yeah it's just gonna get streamed out after your file.
JSP is a poor technology choice for this type of function. You'd be best served to move this code to a servlet.
bear

[William Brogden]

Look at what the implicit "out" is in a JSP - it is a JspWriter!
When you write the value that the file read reads through a Writer, it will perform some sort of character conversion according to what the writer thinks the character set is - this is unlikely to be what you want it to be.
Therefore, like Bear says, do this in a servlet where you have total control.
Bill