View source for Java web xml filter

This will allow you to edit income request.

UrlFilter.java

 import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.*;
 
 public class UrlFilter implements Filter
 {
         private FilterConfig filterConfig;
 
         public void init(FilterConfig filterConfig) throws ServletException{
                 this.filterConfig=filterConfig;
         }
 
         public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws IOException,ServletException {
                 HttpServletRequest httpRequest=(HttpServletRequest)request;
                 HttpServletResponse httpResponse=(HttpServletResponse)response; 
 
                 String incomingUrl=httpRequest.getRequestURI();
                 System.out.println("PATH:" + incomingUrl);
 
                 if(incomingUrl.endsWith(".html"))
                 {
                         String replaceUrl = incomingUrl.replace(".html", ".gsp"); 
 
                         int index = replaceUrl.substring(1, replaceUrl.length()).indexOf("/");
                         String news = replaceUrl.substring(index+1, replaceUrl.length());
                         System.out.println("New ModURL:" + news); 
   
 
                         RequestDispatcher request_Dispatcher=request.getRequestDispatcher(news);
                         request_Dispatcher.forward(request,response);
                 }
 
                 chain.doFilter(request,response);
 
         }
 
         public void destroy(){
         }
 }


web.xml
     <filter>
         <filter-name>Url_Filter</filter-name>
         <filter-class>com.johnfreier.UrlFilter</filter-class>
     </filter>
     <filter-mapping>
         <filter-name>Url_Filter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>