页面代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>HTML 5 服务器发送事件</title>
</head>
<body>
<h1>获得服务器更新</h1>
<div id="result"></div>
<script>
if(typeof(EventSource)!=="undefined")
{
var source=new EventSource("/test/getDate.json");
source.onopen = function(){
}
source.onmessage=function(event) {
document.getElementById("result").innerHTML+=event.data + "<br />";
};
}else{
document.getElementById("result").innerHTML="Sorry, your browser does not support server-sent events...";
}
</script>
</body>
</html>
后台java代码：
@RequestMapping("getDate.json")
public void getDate(HttpServletResponse response){
Date date = new Date();
OutputStream bos = null;
try {
String result = "data:"+date.getTime()+"\n\n";
bos = new BufferedOutputStream(response.getOutputStream());
response.setContentType("text/event-stream");
response.setStatus(HttpServletResponse.SC_OK);
response.setCharacterEncoding(Charset.forName("UTF-8").name());
response.addHeader("Connection", "close");
bos.write(result.getBytes());
bos.flush();
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
时间： 2024-10-04 23:35:19