JSP显示当前系统时间的四种方式:
第一种java内置时间类实例化对象:
%@ 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="%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > title>My JSP 'time4.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"> !-- link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > --> /head> body> % java.text.SimpleDateFormat simpleDateFormat = new java.text.SimpleDateFormat( "yyyy-MM-dd HH:mm:ss"); java.util.Date currentTime = new java.util.Date(); String time = simpleDateFormat.format(currentTime).toString(); out.println("当前时间为:"+time); %> /body> /html>
第二种方式使用JSP内置USEBEAN实例化时间类:
%@ 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="%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > title>显示系统时间方法一:/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"> !-- link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > --> /head> body> jsp:useBean id="time" class="java.util.Date"/> 现在时间:%=time%> /body> /html>
第三种方式使用JSP USEBEAN type与beanName配对使用:
%@ 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="%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > title>My JSP 'time2-useBean-type-beanName.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"> !-- link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > --> /head> body> jsp:useBean id="time" type="java.io.Serializable" beanName="java.util.Date"/> 现在时间:%=time%> /body> /html>
第四种方式使用JSP setproperty设置属性:
%@ 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="%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > title>My JSP 'time3-setproperty.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"> !-- link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > --> /head> body> jsp:setproperty 实例hr> jsp:useBean id="time" class="java.util.Date"> jsp:setProperty name="time" property="hours" param="hh"/> jsp:setProperty name="time" property="minutes" param="mm"/> jsp:setProperty name="time" property="seconds" param="ss"/> /jsp:useBean> br> 设置属性后的时间:${time} } br> /body> /html>
所有代码均能直接复制到MYECLIPSE2010
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