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>
