@WebFilter(filterName="urlFilter", urlPatterns="/*")
public class UrlFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("----------------------->过滤器被创建");
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws ServletException, IOException {
HttpServletRequest req = (HttpServletRequest) servletRequest;
String requestURI = req.getRequestURI();
System.out.println("--------------------->过滤器:请求地址"+requestURI);
if(requestURI.contains("index")){
servletRequest.getRequestDispatcher("/page").forward(servletRequest, servletResponse);
}else{
filterChain.doFilter(servletRequest, servletResponse);
}
}
@Override
public void destroy() {
System.out.println("----------------------->过滤器被销毁");
}
}