tag：ifame 子页面 调用 父页面 ，父页面 子页面
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
<script type="text/javascript">
function say() {
alert("父页面被调用了！");
}
function callChild() {
frame1.window.say();
}
</script>
</head>
<body>
<input type="button" value="调用子页面" οnclick="callChild()"><br/>
<iframe name="frame1" src="demo.jsp"></iframe>
</body>
</html>
demo.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'demo.jsp' starting page</title>
<script type="text/javascript">
function say()
{
alert("子页面被调用了！");
}
function callParent() {
parent.say();
}
</script>
</head>
<body>
<input type="button" value="调用父页面" οnclick="callParent()">
</body>
</html>