<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="https://www.ctyun.cn/portal/link.html?target=%26lt%3B%25%3DbasePath%25%26gt%3B"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <style type="text/css"> #result{border:2px solid #999999; background-color:#eeeeee; } </style> <script type="text/javascript"> var xhr; function getTime(){ try{ //先尝试使用标准方式创建(Firefox、Chrome都支持) xhr=new XMLHttpRequest(); }catch(e){ //出现异常,意味着IE7之前版本,使用ActiveObject创建。 xhr=new ActiveXObject("Microsoft.XMLHttp"); } //设置状态变化,回调函数; xhr.onreadystatechange=callback; //设置请求方式和URL xhr.open("get","gettime"); //发送请求 xhr.send(null); } //状态变化的回调函数; //判断请求完成,并且成功返回 function callback(){ if(xhr.readyState==4 && xhr.status==200){ var resDiv=document.getElementById("result"); var old=resDiv.innerHTML; resDiv.innerHTML=old+xhr.responseText+"<br/>"; } } </script> </head> <body> <input type="button" value='获取服务器时间' οnclick='getTime()'/> <div id='result'> 这里显示从服务器获取时间,多次点击按钮获取时间,不会刷新整个页面!~ </div> </body> </html>
Servlet代码;
resp.setContentType("text/html;charset=utf-8"); PrintWriter out=resp.getWriter(); Date date=new Date(); out.print(date); out.flush(); out.close();