Get Path Variable with out annotation

[kannanMugundan]

Hi,

I need a spring controller to return images/file by reading it from Disk.

I think there is 2 ways to make a call from client
options

http://localhost/ams/spring/files/images/get?directory=WORKSHOP_INFRA&fileName=45_slogan.jpg
  http://localhost/ams/spring/files/images/get/WORKSHOP_INFRA/45_slogan.jpg

my Controller to satisfy the option one url is

public class FilesController extends MultiActionController
{
	public ModelAndView getFile(HttpServletRequest request,HttpServletResponse response) throws Exception
	{
		String fileName = ServletRequestUtils.getRequiredStringParameter(request, "fileName");
		String directory = ServletRequestUtils.getRequiredStringParameter(request, "directory");
                               //My method to read file from disk and return the bytes
		byte[] fileBytes =getFileInBytes(directory,fileName)
		response.setContentType(fileName.substring(fileName.lastIndexOf(".") + 1));
		response.setContentLength(fileBytes.length);
		response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
		FileCopyUtils.copy(fileBytes, response.getOutputStream());
		return null;
	}

}

when I dynamically create the first URL in flex client and use it to render images, is not working, due to & special Char, and geting IP address etc etc.

So thought to use the 2nd URL pattern, but all examples, I found are using annotation path variable etc.
I am yet to learn annotations. so to get the file name and directory from the URL, I need to manually parse the URL using substring, last index etc. Is there any utility in Spring to get me the path varaiable, with out annotation.

Thanks