JSP確定文件路徑方法

JSP文件，獲取文件的相對路徑和絕對路徑

<%
		String url = request.getRequestURI();	//相對路徑
		url = url.substring(url.lastIndexOf('/'));
		url = url.replace('/', '\\');
		out.println("相對路徑"+url+"
"); 
		
		String pa=application.getRealPath("");	//絕對路徑
		out.println("絕對路徑"+pa+url+"
"); 
%>