Re: How to download a file without creating it on a server

[lu...@yahoo.co.jp]

Hi,

I found the following the thread, and now I apply that method.
I think it is the best solution for this issue.(namely create custom Result
class)

http://www.mail-archive.com/user@struts.apache.org/msg79822.html 

Thanks.

Ken


--- lunch716@yahoo.co.jp wrote:

> Hi Dale,
> 
> Thank you for your reply.
> 
> It sounds I can make it, even though there might be some problems
> about
> closing streams.
> When I coded like the following, I could get the download file(i.e. I
> could
> concatenate the ByteArrayInputStream objects.
> ）
> 
> Note.I must rely on SequenceInputStream refered by strtus2 to close
> all
> streams,even though it is possible
> SequenceInputStream.close(=nextStream)
> not to try to close all streams by throwing IOException.   
> 
> #### code #####
>     SequenceInputStream seq1 = null;
>     
>     ByteArrayInputStream bai1 = null;
>     ByteArrayInputStream bai2 = null;
>     ByteArrayInputStream bai3 = null;
>     
>     try {
>        String str1 = new String("aaa");
>        bai1 = new ByteArrayInputStream(str1.getBytes("UTF-8"));
>             
>        String str2 = new String("bbb");
>        bai2 = new ByteArrayInputStream(str2.getBytes("UTF-8"));
>        seq1 = new SequenceInputStream(bai1, bai2);
> 
>        String str3 = new String("ccc");
>        bai3 = new ByteArrayInputStream(str3.getBytes("UTF-8"));
>             
>        this.inputStream = new SequenceInputStream(seq1, bai3);
>         } catch (UnsupportedEncodingException e) {
>            
>             e.printStackTrace();
>         }finally{
>            //don't close streams(seq1, bai1, bai2, bai3) 
>         }
>    }
> ###############
> 
> Thanks.
> 
> Ken
> 
> --- Dale Newfield <da...@newfield.org> wrote:
> 
> > java.io.SequenceInputStream might prove helpful to you here, as
> well.
> > 
> > -Dale
> > 
> >
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