frame的主窗口和子窗口之间通信 -

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frame的主窗口和子窗口之间通信

博客分类：

Java Web技术分析

在frame中的子页面调用其他子页面的变量和方法：
1. parent.document.frames("子页面name").子页面方法();
2. parent.子页面name.子页面方法();
3. parent.frames["子页面name"].子页面方法();
例如：
1. parent.document.frames("top").tops();
2. parent.top.tops();
3. parent.frames["top"].tops();

在frame中主页面调用其他子页面的变量和方法：
1.子页面name.子页面方法()
2.子页面name.子页面变量

示例如下：
1、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>
    <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>
  
  <frameset rows="80,*" cols="*" frameborder="no" border="0" framespacing="0">
  <frame src="top.jsp" name="top" scrolling="No" noresize="noresize" id="top" />
  <frameset cols="80,*" frameborder="no" border="0" framespacing="0">
    <frame src="a.jsp" name="a" scrolling="No" noresize="noresize" id="a" />
    <frame src="b.jsp" name="b" id="b" />
  </frameset>
</frameset>
<noframes><body>
</body>
</noframes>
</html>

2、top.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>top.jsp</title>
<script type="text/javascript">
	function a(){
		var aFrame = parent.document.frames("a");
		//var aId = aFrame.document.getElementById("aId").innerText;
		//alert(aId);
		aFrame.tree("111");
	}
</script>
</head>
<body bgcolor="blue">
	<div id="top" onclick="a()">top页面</div> 
</body>
</html>

3、a.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ page import="java.util.*" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
<script type="text/javascript">
	function tree(d){
		alert(d);
	}
</script>
</head>
<body bgcolor="red">
	<div id="aId">a页面</div>
</body>
</html>

4、b.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body bgcolor="green">
	<div id="b">b页面</div>
</body>
</html>