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Posted to users@tomcat.apache.org by Evgeniy Strokin <ev...@yahoo.com> on 2001/09/06 17:43:56 UTC
How download file from servlet?
HI
I trying make servlet for downloading of files.
When I use:
FileInputStream fl=new FileInputStream(dir);
byte b[]=new byte[4096];
int len=0;
ServletOutputStream souts=_response.getOutputStream();
while(len!=-1){
len=fl.read(b);
if(len!=-1)souts.write(b,0,len);
}
I get:
E:1933 java.lang.IllegalStateException: Writer is already being used for
this request
In this string:
ServletOutputStream souts=_response.getOutputStream();
Anyway, maybe you know better way how do this thing?
Thanks
Jenya
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RE: How download file from servlet?
Posted by Martin van den Bemt <ma...@isallineed.org>.
There is already a _response.getWriter() or getOutputStream() before your
code snippet....
Mvgr,
Martin
> -----Original Message-----
> From: Evgeniy Strokin [mailto:evgeniy_strokin@yahoo.com]
> Sent: Thursday, September 06, 2001 5:44 PM
> To: Tomcat-User@Jakarta. Apache. Org
> Subject: How download file from servlet?
>
>
> HI
>
> I trying make servlet for downloading of files.
> When I use:
> FileInputStream fl=new FileInputStream(dir);
> byte b[]=new byte[4096];
> int len=0;
> ServletOutputStream souts=_response.getOutputStream();
> while(len!=-1){
> len=fl.read(b);
> if(len!=-1)souts.write(b,0,len);
> }
> I get:
> E:1933 java.lang.IllegalStateException: Writer is already being used for
> this request
> In this string:
> ServletOutputStream souts=_response.getOutputStream();
>
> Anyway, maybe you know better way how do this thing?
>
> Thanks
> Jenya
>
> ---------------------------------------------------------------
> NetZero Platinum
> Only $9.95 per month!
> Sign up in September to win one of 30 Hawaiian Vacations for 2!
> http://my.netzero.net/s/signup?r=platinum&refcd=PT97
>
Re: How download file from servlet?
Posted by "Craig R. McClanahan" <cr...@apache.org>.
On Thu, 6 Sep 2001, Evgeniy Strokin wrote:
> Date: Thu, 6 Sep 2001 11:43:56 -0400
> From: Evgeniy Strokin <ev...@yahoo.com>
> Reply-To: tomcat-user@jakarta.apache.org
> To: "Tomcat-User@Jakarta. Apache. Org" <to...@jakarta.apache.org>
> Subject: How download file from servlet?
>
> HI
>
> I trying make servlet for downloading of files.
> When I use:
> FileInputStream fl=new FileInputStream(dir);
> byte b[]=new byte[4096];
> int len=0;
> ServletOutputStream souts=_response.getOutputStream();
> while(len!=-1){
> len=fl.read(b);
> if(len!=-1)souts.write(b,0,len);
> }
> I get:
> E:1933 java.lang.IllegalStateException: Writer is already being used for
> this request
> In this string:
> ServletOutputStream souts=_response.getOutputStream();
>
> Anyway, maybe you know better way how do this thing?
>
This error means that, somewhere while processing the same request, your
servlet called response.getWriter(). You can only get a writer *or* an
output stream for a particular response (depending on whether you want to
send characters or bytes). You cannot get both.
> Thanks
> Jenya
>
Craig