实例
源窗口
| <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Html5 postMessage</title> <style> #otherWin { width: 600px; height: 400px; background-color: #cccccc; } </style> </head> <body> <button id="btn">open</button> <button id="send">send</button> <!-- 通过 iframe 嵌入子页面(接收消息目标窗口) --> <iframe src="http://jhssdemo.duapp.com/demo/h5_postmessage/win.html" id="otherWin"></iframe> <br/><br/> <input type="text" id="message"><input type="button" value="Send to child.com" id="sendMessage" /> <script> window.onload = function() { var btn = document.getElementById('btn'); var btn_send = document.getElementById('send'); var sendBtn = document.getElementById('sendMessage'); var win; btn.onclick = function() { //通过window.open打开接收消息目标窗口 win = window.open('http://jhssdemo.duapp.com/demo/h5_postmessage/win.html', 'popUp'); } btn_send.onclick = function() { // 通过 postMessage 向子窗口发送数据 win.postMessage('Hello', 'http://jhssdemo.duapp.com/'); } function sendIt(e){ // 通过 postMessage 向子窗口发送数据 document.getElementById("otherWin").contentWindow .postMessage( document.getElementById("message").value, "http://jhssdemo.duapp.com/"); } sendBtn.onclick = function(e) { sendIt(e); }; }; </script> </body> </html> |
目标窗口win.html
| <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Html5 postMessage</title> <style> #txt { width: 500px; height: 300px; background-color: #cccccc; } </style> </head> <body> <h1>The New Window</h1> <div id="txt"></div> <script> window.onload = function() { var text = document.getElementById('txt'); //监听函数，接收一个参数--Event事件对象 function receiveMsg(e) { console.log("Got a message!"); console.log("nMessage: " + e.data); console.log("nOrigin: " + e.origin); text.innerHTML = "Got a message!<br>" + "Message: " + e.data + "<br>Origin: " + e.origin; } if (window.addEventListener) { //为window注册message事件并绑定监听函数 window.addEventListener('message', receiveMsg, false); }else { window.attachEvent('message', receiveMsg); } }; </script> </body> </html> |
