第二jsp次作业

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>
    <base href="<%=basePath%>">
    
    <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">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
    
  </head>
  <% Calendar c=Calendar.getInstance();
        int hour=c.get(Calendar.HOUR);
    /*    System.out.println(hour);*/
        if(hour<=12){
        out.println("上午好");
        }else if(hour>13&&hour<17){
        out.println("中午好");
        }else if(hour>18&&hour<23){
        out.println("晚上好");
        }
        %>
  <body>
    <br>
  </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 'sss.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>
      <br>
  <!-- dfffffffffffffffffffffffffffffffffffffffffffffffffffff --></body>
     <% int a=2023;
  if(a%4==0&&a%100!=0||a%400==0){
    out.print("是闰年");
    }else{
    out.print("不是闰年");}
   %>
</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="ISO-8859-1"%>
<%
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>
 <br>       
<br>
    <%--   <% for(int i=100;i<=500;i+=100){%>
      <hr width="<%=i%>"><%
    } %>  --%>
  </body>
</html>

 

 

 

4.在第一题上加Java注释,第二题加html注释,第三题加jsp注释

 

/*    System.out.println(hour);*/
  <!-- dfffffffffffffffffffffffffffffffffffffffffffffffffffff -->
    <%--   <% for(int i=100;i<=500;i+=100){%>
      <hr width="<%=i%>"><%
    } %>  --%>

 

posted @ 2022-03-09 11:47  王磊1  阅读(19)  评论(0)  编辑  收藏  举报