JSP第二次作业
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> </head> <body> <% Date d=new Date(); int h=d.getHours(); int m=d.getMinutes(); int s=d.getSeconds(); out.print("当前时间为:"+h+":"+m+":"+s+"<br>"); if(h>=0&&h<=12){ out.print("上午好"); }else if(h>=13&&h<=17){ out.print("下午好"); }else{ out.print("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>是否闰年</title> </head> <body> <%! int show(int year){ if(year%4==0&&year%400!=0||year%400==0){ return 1; }else{ return 0; } } %> <% if(show(2023)==1){ out.println("是闰年"); }else{ out.println("不是润年"); } %> </body> </html>
3.表达式+程序段,循环输出5条hr,长度分别为100px-500px
<%@ 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>循环</title> </head> <body> <%for(int i=100;i<600;i=i+100){ %> <hr width="<%=i%>"> <%} %> </body> </html>