frameset布局时frame中src路径的页面没有加载的解决方法

%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
html>
head>
base href="%=basePath%>">
meta http-equiv="Content-Type" content="text/html; charset=GB18030">
title>主页/title>
/head>
body>
frameset rows="15%,70%,15%" frameborder="yes" >
frame scrolling="auto" src="IndexTop.jsp">/frame>
frame scrolling="auto" src="IndexMain.jsp">/frame>
frame scrolling="auto" src="IndexBottom.jsp">/frame>
/frameset>
/body>
/html>