You can do this without explicitly accessing the output stream of the
HttpServletResponse.
1) In struts.xml define the result type of your action as a stream, you
can define content type here aswell
<action name="myAction" method="myMethod" class="myActionClass">
<result type="stream">
<param name="contentType">application/msword</param>
</result>
</action>
2) In your action class define a variable with name input stream and
define a getter for it.
private InputStream inputStream;
public InputStream getInputStream() {
return inputStream;
}
3) In your action method set the input stream to your file input stream
File file = new File(downloadDirectory + filename);
this.inputStream = new FileInputStream(file);
And that should work.
You can find more documentation on the stream result type here
http://struts.apache.org/2.x/docs/stream-result.html
jneville wrote:
Hi,
I'm trying to code file download functionality in a Struts 2 action. The
action executes and the "success" result is invoked, but the pop-up window
in the browser, which prompts to save the file, does not appear.
I think I am configuring the response incorrectly (see code below). Any help
greatly appreciated.
Thanks,
John
My action code is as follows :-
File file = new File(downloadDirectory + filename);
FileInputStream fis = new FileInputStream(file);
BufferedInputStream bis = new BufferedInputStream(fis);
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("application/msword");
response.setHeader("Content-disposition", "attachment; filename=" +
filename);
OutputStream output = response.getOutputStream();
byte[] buffer = new byte[4096];
int count = 0;
int n = 0;
while (-1 != (n = bis.read(buffer))) {
output.write(buffer, 0, n);
count += n;
}
bis.close();
fis.close();
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