JSP每隔指定的时间段自动刷新页面<%@ page import="java.io.*,java.util.<% res

这个例子展示了每隔5秒钟刷新页面的效果：

<%@ page import="java.io.*,java.util.*" %>
<html>
<head>
<title>Auto Refresh Header Example</title>
</head>
<body>
<center>
<h2>Auto Refresh Header Example</h2>
<%    response.setIntHeader("Refresh", 5);    
      Calendar calendar = new GregorianCalendar();    
	  String am_pm;    
	  int hour = calendar.get(Calendar.HOUR);    
	  int minute = calendar.get(Calendar.MINUTE);    
	  int second = calendar.get(Calendar.SECOND);    
	  if(calendar.get(Calendar.AM_PM) == 0)       
	     am_pm = "AM";    
	  else       
	     am_pm = "PM";    
	  String CT = hour+":"+ minute +":"+ second +" "+ am_pm;    
	  out.println("Current Time is: " + CT + "\n"); 
%>
</center>
</body>
</html>

服务器端渲染，所以Chrome开发者工具network标签页里看不到response：

可以看到每隔5秒钟的时间间隔效果：

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