장바구니

20 Apr 2022 in Study on JSP

장바구니

문제

0421jsp5_1
0421jsp5_2
0421jsp5_3
0421jsp5_4

로그인화면

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>ch06 : login.jsp</title>
</head>
<body>
<div align="center">
	<H2>로그인</H2>
	<form name="form1" method="POST" action="selProduct(2017305072 전은성).jsp">
		<input type="text" name="username"/>
		<input type="submit" value="로그인"/>
	</form>
</div>
</body>
</html>

과일 선택 화면

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<title>ch06 : selProduct.jsp</title>
</head>
<%
	request.setCharacterEncoding("UTF-8"); // euc-kr
	session.setAttribute("username",request.getParameter("username"));
%>
<body>
<div align="center">
	<H2>상품선택</H2>
	<HR>
	<%=session.getAttribute("username") %>님 환영합니다!!!!
	<HR>
	<form name="form1" method="POST" action="add(2017305072 전은성).jsp">
		<SELECT name="product">
			<option>사과</option>
			<option>귤</option>
			<option>파인애플</option>
			<option>자몽</option>
			<option>레몬</option>
		</SELECT>
		<input type="submit" value="추가"/>
	</form>
	<a href="checkOut(2017305072 전은성).jsp">계산</a>
</div>
</body>
</html>

과일 추가 화면

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>ch05 : add.jsp</title>
</HEAD>
<body>
<%
	request.setCharacterEncoding("UTF-8");
	String productname = request.getParameter("product");
	ArrayList<String> list = (ArrayList)session.getAttribute("productlist");
	if(list == null) {
		list = new ArrayList<String>();
		session.setAttribute("productlist",list);
	}
	list.add(productname);

%>
	<script>
		alert("<%=productname %> 이(가)추가 되었습니다.!!");
		history.go(-1);
	</script>
</body>
</html>

계산 화면

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=EUC-KR">
<title>ch06 : checkOut.jsp</title>
</HEAD>
<body>
<div align="center">
<H2>계산</H2>
선택한 상품 목록
<HR>
<%
	int apple=0;
	int orange=0;
	int pineapple=0;
	int zamboa=0;
	int lemon=0;
	int apple2=0;
	int orange2=0;
	int pineapple2=0;
	int zamboa2=0;
	int lemon2=0;
	ArrayList list = (ArrayList)session.getAttribute("productlist");
	if(list == null) {
		out.println("선택한 상품이 없습니다.!!!");
	}
	else {
		for(Object productname:list) {
			if(productname.equals("사과")){
				apple+=1;
			}
			else if (productname.equals("귤")){
				orange+=1;
			}
			else if (productname.equals("파인애플")){
				pineapple+=1;
			}
			else if (productname.equals("자몽")){
				zamboa+=1;
			}
			else if (productname.equals("레몬")){
				lemon+=1;
			}
		}
		for(Object productname:list){
			if(productname.equals("사과") && apple2==0){
				out.println(productname+" "+apple+"개 "+"(1000 x "+apple+" = "+1000*apple+"원)<br>");
				apple2+=1;
			}
			else if (productname.equals("귤") && orange2==0){
				out.println(productname+" "+orange+"개 "+"(2000 x "+orange+" = "+2000*orange+"원)<br>");
				orange2+=1;
			}
			else if (productname.equals("파인애플") && pineapple2==0){
				out.println(productname+" "+pineapple+"개 "+"(3000 x "+pineapple+" = "+3000*pineapple+"원)<br>");
				pineapple2+=1;
			}
			else if (productname.equals("자몽") && zamboa2==0){
				out.println(productname+" "+zamboa+"개 "+"(4000 x "+zamboa+" = "+4000*zamboa+"원)<br>");
				zamboa2+=1;
			}
			else if (productname.equals("레몬") && lemon2==0){
				out.println(productname+" "+lemon+"개 "+"(5000 x "+lemon+" = "+5000*lemon+"원)<br>");
				lemon2+=1;
			}
		}
		out.println("<hr>총 개수 "+list.size()+"개<br>");
	}
%>
	총 주문 금액: 
<%
	int sum=0;
	List<String> list2=(List)session.getAttribute("productlist");
	if(list2!=null){
		for(String product:list2){
			if(product.equals("사과")){
				sum+=1000;
			}
			else if (product.equals("귤")){
				sum+=2000;
			}
			else if (product.equals("파인애플")){
				sum+=3000;
			}
			else if (product.equals("자몽")){
				sum+=4000;
			}
			else if (product.equals("레몬")){
				sum+=5000;
			}
		}
	}
	out.println(sum+" 원 입니다.");
%>
</div>
</body>
</html>