Hi experts,
I have multiple download links [commandLink] /buttons[commandButton] on the same page. I realized that a user needs to click twice to see an open directory window from the second attempt, I do not understand why this is happening.
The download page was implemented with
jsp page. commandLink/commandbutton are simply taking a user to this download page by clicking a link or a button.
At the first click, a use always go to this page and the browser asks a user if one wants to save a directory or open on the browser. Then a user can decide to cancel or save or open. At the second attempts, the problem is that a user clicks link/button subsequently right after the first attempt, the action does not take a user to the jsp page, and it only reloads page with a round trip.
Then a user needs to click a link/ a button second time, then it works.
Could someone advise me why this is happening and is there anyway to stop this ?
I implemented a commandbutton + actionListener [in backing bean] solution for file download, but the result was the same. From the second attempt, a user always needs to click twice [double click] button.
I saw the one post on google is that adding _blank on form tag helps, but it actually did not help at all.
Any idea ?
yasushi
==== partial code for jsp page ====
....
if(allowCache == null || allowCache.equalsIgnoreCase("false"))
{
response.setHeader("pragma", "no-cache");
response.setHeader("Cache-control", "no-cache, no-store, must-revalidate");
response.setHeader("Expires", "01 Apr 1995 01:10:10 GMT");
response.addHeader("Cache-Control", "post-check=0, pre-check=0");
response.setDateHeader ("Expires", 0);
}
if(contentType!=null)
{
response.setContentType(contentType);
}
if(fileName != null)
{
StringBuffer contentDisposition = new StringBuffer();
if("true".equals(openDirectly))
{
contentDisposition.append("attachment;");
logger.info("==> attachement");
}
contentDisposition.append("filename=\"");
contentDisposition.append(fileName);
contentDisposition.append("\"");
response.setHeader ("Content-Disposition", contentDisposition.toString());
}
if (bytes != null)
{
response.getOutputStream().write(bytes);
}
