filter(配置类名的时候要写完整路径和类名)

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package com.javaweb;import java.io.IOException;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 com.sun.net.httpserver.Filter.Chain;public class FilterTest implements Filter {public void destroy() {// TODO Auto-generated method stubSystem.out.println("销毁");}public void doFilter(ServletRequest arg0, ServletResponse arg1,FilterChain arg2) throws IOException, ServletException {// TODO Auto-generated method stubarg2.doFilter(arg0, arg1);System.out.println("执行过滤");}public void init(FilterConfig arg0) throws ServletException {// TODO Auto-generated method stubSystem.out.println("初始化");}}