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<!DOCTYPE html> <html> <body> <p>调用 onmessage 事件的文档的 URL：</p> <div id="myDIV"></div> <p><strong>注意：</strong>服务器发送的事件在 Internet Explorer 中不受支持。</p> <script> if(typeof(EventSource) !== "undefined") { var source = new EventSource("/html/demo_sse.php"); source.onmessage = function(event) { document.getElementById("myDIV").innerHTML = event.origin; }; } else { document.getElementById("myDIV").innerHTML = "抱歉，您的浏览器不支持服务器发送的事件..."; } </script> </body> </html>