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How to download file in Servlet?

How to download file in Servlet?

2004-02-26       - By Edward King

 Back
Reply:     1     2     3  

I am trying to use a servlet to download an text file to the client from server
,File located c:\1.txt in Server,when user explore this page,IE reminder user if
download file "1.txt".I write following code.But when I explore this page,IE
didn't remind me if download file and it didn't domnload file at all.How to
correct following code to realize automatically download? What errors is in my
code?

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
   response.setContentType("multipart/form-data");
   String file_name=new String("c:\\1.txt");
   String data=new String("data");
   response.setHeader("Content-Disposition","attachment;filename="+file_name);
   PrintWriter out = response.getWriter();
   out.println(file_name);
}

Thanks

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<META content="MSHTML 6.00.2800.1400" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>I am trying to use a servlet to&nbsp;download an text file to
the client from&nbsp;server,</FONT><FONT size=2><FONT size=2>File located
c:\1.txt in Server,when user explore this page,IE reminder user if download file
"1.txt".I write following code.But when I explore this page,IE didn't remind me
if download file and it didn't domnload file at all.How to
correct&nbsp;following code&nbsp;to realize automatically download? What errors
is&nbsp;in my code?</FONT></FONT></DIV>
<DIV><FONT size=2><FONT size=2></FONT>&nbsp;</DIV></FONT>
<DIV><FONT size=2>public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
{<BR>&nbsp;&nbsp;&nbsp;
response.setContentType("multipart/form-data");<BR>&nbsp;&nbsp;&nbsp; String
file_name=new String("c:\\1.txt");<BR>&nbsp;&nbsp;&nbsp; String data=new
String("data");<BR>&nbsp;&nbsp;&nbsp;
response.setHeader("Content-Disposition","attachment;filename="+file_name);<BR>
&nbsp;&nbsp;&nbsp;
PrintWriter out = response.getWriter();<BR>&nbsp;&nbsp;&nbsp;
out.println(file_name);</FONT></DIV>
<DIV><FONT size=2>}</FONT></DIV>
<DIV><FONT size=2></FONT>&nbsp;</DIV>
<DIV><FONT size=2>Thanks<BR></FONT><A
href="mailto:SERVLET-INTEREST@(protected)"></A></DIV></BODY></HTML>
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ __
To unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff SERVLET-INTEREST".
<p>
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
<p>

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