下述代码定义了两个过滤器,并在web.xml配置完毕: Filter1.java public class Filter1 implements Filter { @Override public void destroy() { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { System.out.println('enter Filter1'); chain.doFilter(request, response); System.out.println('exit Filter1'); } @Override public void init(FilterConfig arg0) throws ServletException { } } Filter2.java public class Filter2 implements Filter { @Override public void destroy() { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { System.out.println('enter Filter2'); chain.doFilter(request, response); System.out.println('exit Filter2'); } @Override public void init(FilterConfig arg0) throws ServletException { } } web.xml filter1 x.Filter1 filter2 x.Filter2 filter1 /* filter2 /* 当访问网站首页时,控制台的输出为 ( )。