<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<h1>父亲-页面</h1>
<iframe src="./b.html" width="500" height="300" id="topNav"></iframe>
<script>
function parentEvent(a) {
alert("父亲被儿子调用"+JSON.stringify(a));
}
// 监听消息
window.addEventListener("message", receiveMessage, false);
function receiveMessage(event) {
debugger
if (event.data.event_id === "my_cors_message") {
console.log('event.data',event.data);
parentEvent(event.data); // 触发父页面事件
}
}
// 参考https://cloud.tencent.com/developer/ask/sof/101133167
// 原文链接：https://blog.csdn.net/mkmmkkghhhhhhhh/article/details/131370510
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<h2>我是儿子页面--kkk</h2>
<button onclick="triggerParentEvent()">方法1：调用父亲页面</button>
<script>
function triggerParentEvent() {
debugger
const parentWindow = window.parent;
parentWindow.postMessage({
event_id: 'my_cors_message',
data: { // 这里可以传递多个参数给父页面
v1: 'value1',
v2: 'value2'
}
},
['http://localhost:80','http://localhost:89'] // 这里填入域名，能指定给哪个网址发送信息
); // 发送消息
}
</script>
</body>
</html>
