jsp2

1.显示时间

<%@ 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>
    <title>显示时间</title>
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  <body>
    <%
   //java注释
   Calendar c=Calendar.getInstance();
   int year=c.get(Calendar.YEAR);
   int month=c.get(Calendar.MONTH)+1;
   int date=c.get(Calendar.DATE);
   int hour=c.get(Calendar.HOUR_OF_DAY);
   int minute=c.get(Calendar.MINUTE);
   int second=c.get(Calendar.SECOND);
   String str="";
   if(hour>=0&&hour<=12){
      str="上午好！";
   }
   if(hour>=13&&hour<=17){
      str="下午好！";
   }
   if(hour>=18&&hour<=24){
      str="晚上好！";
   }
     %> 
     
     <table BORDER="1"align="center">
     <tr align="center"><td>现在时间为:<%=year  %>-<%=month  %>-<%=date  %>-<%=hour  %>:<%=minute  %>:<%=second  %></td></tr>
     <tr align="center"><td><%=str %></td></tr>
     </table> 
  </body>
</html>

　　

 

 2.判断闰年

<%@ 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>
 <%!
    boolean isRun(int year){
    if(year%4==0&&year%100!=0||year%400==0){
        return true; 
    }
    return false;
}  
%>
  <head> 
    <title>闰年</title>
  </head>
  <body>
  <!-- HTML注释 -->
  <%
  boolean f=isRun(2023);
  out.print("不是闰年");
   %> 
  </body>
</html>

 

 3.长度线

<%@ 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> 
    <title>长度</title>
  </head>
  <body>
  <%--jsp注释 --%>
  <% 
  for(int i=1;i<=5;i++){ %>
  <hr width="<%=i*100%>px">
  <%  }%>
  </body>
</html>

 

posted @ 2022-03-12 12:20  偷一夜星光  阅读(138)  评论(0)    收藏  举报