<snip>
On Sat, 29 Jan 2005 16:28:42 +0000, Tim Christopher
<[EMAIL PROTECTED]> wrote:
> I've read that if you store your JSP files under the WEB-INF folder it
> blocks access to html resources (CSS etc).. What's the work around to
> ensure the JSP has access to all the resources it still needs?
>
> Tim
</snip>
The problem with access to HTML resources is that you are dependent on
the browser read of a path, relative or absolute, but have to locate
the resource serverside. The way I do this is to avoid any use of the
browser at all for this purpose and use a Struts Action class to
deliver all assets/resources including CSS, JS, GIFs, etc. to the HTML
page. Here is the essentials of the class I use to do that, with
apologies to people that don't like anything more than a code snippet
on this list ;-) :
public final class ResourceAction
extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException,
ServletException {
String file = request.getParameter("file");
String ext = file.substring(file.lastIndexOf('.') + 1);
String type = null;
String path = null;
if ("gif".equals(ext)) {
type = "image/gif";
path = path("gif");
} else if ("jpg".equals(ext)) {
type = "image/jpeg";
path = path("jpeg");
} else if ("css".equals(ext)) {
type = "text/css";
path = path("css");
} else if ("flash".equals(ext)) {
type = "application/x-shockwave-flash";
path = path("flash");
} else if ("text".equals(ext)) {
type = "text/plain";
path = path("text");
} else if ("js".equals(ext)) {
type = "text/javascript";
path = path("js");
} else if ("png".equals(ext)) {
type = "image/png";
path = path("png");
} else if ("html".equals(ext)) {
type = "text/html";
path = path("html");
} else if ("applet".equals(ext)) {
type = "application/x-java-applet";
path = "classes" + File.separator + "com" + File.separator +
"crackwillow" + File.separator + "applet";
}
String name = Classpath.WEB_INF + path + file;
response.setContentType(type);
response.setHeader("Cache-Control", "");
response.setHeader("Pragma", "");
response.setHeader("Expires", "");
response.addHeader("Content-Disposition","filename=" + name);
try {
FileInputStream fis = new FileInputStream(name);
BufferedInputStream bis = new BufferedInputStream(fis);
byte[] bytes = new byte[bis.available()];
OutputStream os = response.getOutputStream();
bis.read(bytes);
os.write(bytes);
os.flush();
os.close();
} catch (IOException ioe) {
StdOut.log(SiteConstant.ERROR_LOG,"ResourceAction: problem file
is: " + name + "\n" + StackTrace.trace(ioe) + "\n" +
ioe.getMessage());
}
return null;
}
private String path(String fileType) {
return "resource" + File.separator + "content_type" +
File.separator + fileType + File.separator;
}
}
Jack
--
"You can lead a horse to water but you cannot make it float on its back."
~Dakota Jack~
"You can't wake a person who is pretending to be asleep."
~Native Proverb~
"Each man is good in His sight. It is not necessary for eagles to be
crows. We are poor . . . but we are free."
~Hunkesni (Sitting Bull), Hunkpapa Sioux~
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