常用的打印日志方法

import org.apache.log4j.Logger;

public class MyFilter implements Filter {
Logger log = Logger.getLogger(this.getClass().getName());

// private static final Log log = LogFactory.getLog(MyFilter.class);
@Override
public void destroy() {
// TODO Auto-generated method stub

}

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
// TODO Auto-generated method stub
HttpServletRequest rq=(HttpServletRequest)request;
log.info("用户执行："+rq.getRequestURL());

chain.doFilter(request,response);
}

@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub

}

}