jsp作业3 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ page contentType="text/html" %>
<%@ page import="java.util.regex.Pattern" %>
<%@ page import="java.util.regex.Matcher" %>


<%!
	public double getPriceSum(String input){
		Pattern pattern;
		Matcher matcher;
		String regex="-?[0-9][0-9]*[.]?[0-9]";
		pattern=Pattern.compile(regex);
		matcher=pattern.matcher(input);
		double sum=0;
		while(matcher.find()){
		String str=matcher.group();
		sum+=Double.parseDouble(str);
		}
		return sum;
	}
 %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<br>张三的菜单</br>
<%
	String str="麻婆豆腐：25.3，红烧肉：40.2";
 %>
 <br><%= str %></br>
 <br><b><i>消费：<%=getPriceSum(str) %></i></b></br>
 <br>李四的菜单</br>
<%
	String strr="辣子鸡：45.6，北京烤鸭：99.9，油焖大虾：88.8";
 %>
 <br><%= strr %></br>
 <br><b><i>消费：<%=getPriceSum(strr) %></i></b></br>
  
</html>

 

 

 实验2

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>

<%@ page import ="java.text.SimpleDateFormat" %>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<%
	Date d=new Date();
	SimpleDateFormat a=new SimpleDateFormat();
	String now=a.format(d);
	
 %>
<br>
<%
	out.print(now);
 %>
  

</html>

 

<%@ 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>
<body>
 <h1>显示访问网页的日期时间<br>(服务器的时间日期)</h1>
<%@ include file="time.jsp" %> 
</body>

</html>

 

posted @ 2021-03-27 13:59  bluebless  阅读(68)  评论(0)    收藏  举报