需要使用来自服务器的数据刷新div。服务器正在使用服务器发送事件发送数据。
一切正常，但数据以新行显示。我需要在相同的位置刷新相同的div，而不是添加更多的行。
这是html页面：
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="result">Loading data. Please, wait...</div>
<script type="text/javascript">
if(typeof(EventSource) !== "undefined") {
var source = new EventSource("demo_sse.php");
source.addEventListener('message', function(e) {
document.getElementById("result").innerHTML += event.data + "<br>";
}, false);
source.addEventListener('open', function(e) {
// Connection was opened.
//alert('Connection opened');
}, false);
source.addEventListener('close', function(e) {
// Connection was opened.
alert('Connection closed');
}, false);
source.addEventListener('error', function(e) {
if (e.readyState == EventSource.CLOSED) {
// Connection was closed.
alert('Connection closed');
}
}, false);
} else {
document.getElementById("result").innerHTML = "Sorry, your browser does not support server-sent events...";
}
</script>
</body>
</html>
这是php文件：
<?php
header('Content-Type: text/event-stream');
header('Cache-Control: no-cache');
$time = date('r');
echo "retry: 1000\n";
echo "data: The server time is: {$time}\n\n";
//error_log('XXXX');
flush();
?>
将行更改为：
source.addEventListener('message', function(e) {
document.getElementById("result").innerHTML = event.data + "<br>";
}, false);