试验下我的package com.huxinsong.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.HttpServletRequest;
public class Encoding implements Filter {        public void destroy() {
                // TODO 自动生成方法存根        }        public void doFilter(ServletRequest request, ServletResponse response,
                        FilterChain chain) throws IOException, ServletException {
                // TODO 自动生成方法存根
                HttpServletRequest httpRequest = (HttpServletRequest) request;
                httpRequest.setCharacterEncoding("GB2312");
                chain.doFilter(httpRequest, response);
        }        public void init(FilterConfig arg0) throws ServletException {
                // TODO 自动生成方法存根        }}