JSP第二周作业

1.p39 实验2 显示当前时间，并输出上午(0-12)好,下午好(13-17),晚上好(18-23)

<%@ 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>
  </head>
  <body>
  <%
  //java注释
  Date d=new Date();
  int hour=d.getHours();//获取小时
  int minute=d.getMinutes();
  int second=d.getSeconds();
  if(hour>=0&&hour<=12){
  out.print("当前时间为"+hour+":"+minute+":"+second+"上午好");
  }else if(hour>12&&hour<=17){
  out.print("当前时间为"+hour+":"+minute+":"+second+"下午好");
  }else{
  out.print("当前时间为"+hour+":"+minute+":"+second+"晚上好");
  }
  %>
  </body>
</html>

 


2. 使用声明方法,在页面调用该方法,判断2023是不是闰年

<%@ 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>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'MyJsp.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">
    -->

  </head>
  
  <body>
    <%int year=2023;               //<!--定义年份为2023年--!>
    out.print("年份 "+year+"年");    
    if(year%4==0&&year%100!=0||year%400==0){    
     %>
     为闰年
     <%}else {%>
     为平年
     <%}%>
  </body>
</html>

 


3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<hr width="<%=i%>"

<%@ 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 @ 2022-03-18 12:59  F85  阅读(6)  评论(0)  编辑  收藏  举报