学步园

import
 javax.servlet.Filter;

import
 javax.servlet.FilterChain;

import
 javax.servlet.FilterConfig;

import
 javax.servlet.ServletException;

import
 javax.servlet.ServletRequest;

import
 javax.servlet.ServletResponse;

import
 javax.servlet.http.HttpServletRequest;

import
 javax.servlet.http.HttpServletResponse;

import
 com.ww.golf.bo.Player;

import
 com.ww.golf.util.ActionUtils;

public
 
class
 LogFilter 
implements
 Filter {

    
protected
 FilterConfig filterConfig;

    
public
 
void
 init(FilterConfig config) 
throws
 ServletException {
        
this
.filterConfig 
=
 config;
    }

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

        Player player 
=
 (Player) request.getSession().getAttribute(
                ActionUtils.PLAYER_OBJ_KEY);
        
if
 (player 
==
 
null
) {
            StringBuffer sUrl 
=
 
new
 StringBuffer(
""
);
            
if
 (request.getRequestURI() 
!=
 
null
) {
                sUrl
                        .append(URLEncoder.encode(request.getRequestURI(),
                                
"
UTF-8
"
));
            }
            
if
 (request.getQueryString() 
!=
 
null
) {
                sUrl.append(
"
?
"
);
                sUrl.append(URLEncoder
                        .encode(request.getQueryString(), 
"
UTF-8
"
));
            }

            System.out.println(
"
URL:
"
 
+
 sUrl);
            response.sendRedirect(
"
../index.jsp?
"
 
+
 ActionUtils.GO_URI_KEY
                    
+
 
"
=
"
 
+
 sUrl.toString());
        } 
else
 {
            chain.doFilter(request, response);
        }

    }

    
public
 
void
 setFilterConfig(
final
 FilterConfig filterConfig) {
        
this
.filterConfig 
=
 filterConfig;
    }

    
public
 
void
 destroy() {
        
this
.filterConfig 
=
 
null
;
    }
}