1 package tw.com.javaworld.CH11;
2 
3 import javax.servlet.*;
4 import javax.servlet.http.*;
5 public class WrapperSample implements Filter {
6     
7     public void doFilter(
8         ServletRequest request,
9         ServletResponse response,
10        FilterChain chain) {
11        try {
12            RequestWrapperSample wrapper =
13                new RequestWrapperSample((HttpServletRequest) request);
14            chain.doFilter(wrapper, response);
15        } catch (Exception e) {
16        }
17    }
18    
19    public void init(FilterConfig config) throws ServletException {
20    }
21    
22    public void destroy() {
23    }
24}