JSP转向JSP中文就乱码了 真的找不出啊 跪求大牛！

myeclipse设置的编码也是UTF-8 ！不知道JSP为什么中文就乱码了！求解！！！
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
   <%
   request.setCharacterEncoding("UTF-8");
   out.println( request.getParameter("username"));
   
  %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">    
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
  </head>
  
  <body>
  
  <form action="index.jsp" method="get">
  username:<input type="text" name="username">
  <input type="submit" value="submit">
  </form>
  </body>
</html>