Filter and Struts

[Wilson Gordon]

Hi,

I tried to add a filter to my application to filter requests, but it doesn't seem to intercept any request. Is there a problem with using filter and Struts together? How can I get it to work?

Thanks.

[Jeanne Boyarsky]

Wilson,
No problem. I use filters and Struts. Have you tried a bare bones "Hello World" filter to see if it gets called? If so, I recommend posting your additions for the filter in the web.xml to the servlets forum to ask what is wrong.

[Wilson Gordon]

Hi Jeane,

Thanks for the reply.

I added some logging and looks like the filter does get invoked.

What I try to achieve is to alter the response to add cookies from the session attributes. To do that, I created a wrapper class that implements the HttpResponseWrapper interface, and passed the wrapped response object into the chain filter. Below the chain filter call, I called addCookie method on the response object. The strange thing is the cookies don't seem to get added.

Any idea?

[Wilson Gordon]

Here is my doFilter method code:

public void doFilter(ServletRequest req, ServletResponse resp,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) resp;

MyRequestWrapper wrappedRequest = new MyRequestWrapper(request);
MyResponseWrapper wrappedResponse = new MyResponseWrapper(response);

chain.doFilter(wrappedRequest, wrappedResponse);
 
Cookie testCookie = new Cookie("Name", "Test");
testCookie.setMaxAge(30*60);
testCookie.setSecure(true);
response.addCookie(testCookie);
}

The cookie doesn't get set for some reason. Any idea?
[ October 31, 2007: Message edited by: Wilson Gordon ]

[Wilson Gordon]

I also tried the following and it didn't redirect me to Google. Looks like I can't modify the response for some reason.

chain.doFilter(wrappedRequest, wrappedResponse);
response.sendRedirect("http://www.google.com");

Anyone know how I could resolve the problem?

Thanks.

[Brent Sterling]

What does your web.xml entry look like?

- Brent