韩顺平struts视频第一个Demo(简单登录验证)

package com.hsp.filter; 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 javax.servlet.http.HttpServlet; /** * *Title:MyFilter1 *Description: 该过滤器用于解决跳转时乱码问题。需要在web.xml中配置 *@author xiaoli *@date2017年4月14日 */ public class MyFilter1 implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); //必须 chain.doFilter(request, response); //返回 response.setContentType("text/html;charset=utf-8"); } @Override public void init(FilterConfig filterConfig) throws ServletException { // TODO Auto-generated method stub } @Override public void destroy() { // TODO Auto-generated method stub } }