postmessage頁面傳值

域名:http://localhost:3000/test1.htmlhttp://localhost:3002/test2.html發送數據html

test1.html:瀏覽器

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<iframe id="iframe" src="http://localhost:3002/test2.html" name="myIframe"></iframe>
<input type="text" id="msg">
<button id="btn">發送</button>
</body>
<script>
    window.onload=function () {
        var msgDom=document.getElementById('msg'),
        btn=document.getElementById('btn');
        btn.onclick=function () {
            var msg=msgDom.value;
            var iframeWin=myIframe.window;
            iframeWin.postMessage(msg,'http://localhost:3002/test2.html')
                //h5規範:能夠發送JavaScript的任意基本類型或可複製的對象,但不是全部瀏覽器都兼容,有的            
               //瀏覽器只能處理字符串,因此須要用JSON.stringify()序列化
                //必須是目標窗口,iframeName.window或者window.open
        }
    }
</script>
</html>

test2.html:post

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
test2.html接受數據
</body>
<script>
    window.onload = function() {
            if(window.addEventListener){
                window.addEventListener("message", handleMessage, false);
            }
            else{
                window.attachEvent("onmessage", handleMessage);
            }
             function handleMessage(event) {
                 event = event || window.event;
                     if(event.origin === 'http://localhost:3000') {
                             console.log('接受數據',event.data);
                         }
                 }
         }
</script>
</html>
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