no3.jsp:
<%@ page language="java" contentType="text/html;charset=GB2312" pageEncoding="GB2312" %>
<%request.setCharacterEncoding("GB2312"); %>
笔误
<%@ page language="java" contentType="text/html;charset=GB2312" pageEncoding="GB2312" %>
<%request.setCharacterEncoding("GB2312"); %>
笔误
弄个过滤器就OK了,还有就是你数据库的编码,要一致的