Day04(jsp:forward)

2021. 10. 7. 18:53ยท๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต)/JSP

03form.jsp์˜ ์ฝ”๋“œ๋‚ด์šฉ

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

<form action="03result.jsp" method="post">
	aoa <input type="radio" value="aoa" name="group">
	blackPink <input type="radio" value="blackPink" name="group">
	<input type="submit" value="๋‚ด ๊ทธ๋ฃน ์ทจํ–ฅ">
</form>

</body>
</html>

03result.jsp์˜ ์ฝ”๋“œ๋‚ด์šฉ

<%@page import="java.util.List"%>
<%@page import="java.util.ArrayList"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
 ํฌ์›Œ๋“œ ๋˜๊ธฐ ์ „ ๋ฐ์ดํ„ฐ ๋‚˜์˜ค๋‚˜ <br>
 <%
 	String group = request.getParameter("group");
 	String viewPage = "";
 	List<String> memberList = new ArrayList<String>();
 	
 	if(group.equals("aoa")){
 		viewPage="aoa.jsp";
 		memberList.add("์„คํ˜„");
 		memberList.add("์ง€๋ฏผ");
 		memberList.add("์ดˆ์•„");
 	}else if(group.equals("blackPink")){
 		viewPage="blackPink.jsp";
 		memberList.add("์ง€์ˆ˜");
 		memberList.add("๋กœ์ œ");
 		memberList.add("์ œ๋‹ˆ");
 		memberList.add("๋ฆฌ์‚ฌ");
 	}
 	
 	request.setAttribute("memberList", memberList);
 %>
 
 	<jsp:forward page="<%=viewPage %>"></jsp:forward>
	<br>
 	forward๋˜๊ณ  ๋‚˜์„œ ์‹คํ–‰๋˜๋‚˜?
 
 
 
 
 
</body>
</html>

aoa.jsp์˜ ์ฝ”๋“œ๋‚ด์šฉ

<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
	List<String> memberList = (List<String>)request.getAttribute("memberList");
%>
member๋ชฉ๋ก : 
<%
	for(int i=0; i<memberList.size(); i++){
		out.print(memberList.get(i)+"<br>");
	}
%>

<img alt="" src="<%=request.getContextPath()%>/resource/images/aoa.jpeg">


</body>
</html>

blackPink.jsp์˜ ์ฝ”๋“œ๋‚ด์šฉ

<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

<img alt="" src="<%=request.getContextPath()%>/resource/images/๋กœ์ œ.jpeg">

<%
	List<String> memberList = (List<String>)request.getAttribute("memberList");
%>

<%
	for(String member : memberList){
		%>
		<%=member %> <br>
		<img alt="" src="../resource/images/<%=member%>.jpg"> <br>
		<%
	}
%>

</body>
</html>

์ถœ๋ ฅ๋‚ด์šฉ

03form.jsp ์‹คํ–‰ ์ด๋ฏธ์ง€

 

  • jsp:forwardํƒœ๊ทธ ์‚ฌ์šฉ include๋ž‘ ๋‹ค๋ฅด๊ฒŒ ๋ฒ„ํผ๋ฅผ ๋น„์šฐ๊ณ  ํ•ด๋‹น ํŽ˜์ด์ง€ ์ถœ๋ ฅํ•˜๊ณ  ํŽ˜์ด์ง€๊ฐ€ ๋„˜์–ด๊ฐ„๋‹ค. (03result.jsp์—์„œ ์ƒ๋‹จ๊ณผ ํ•˜๋‹จ์— ์ž…๋ ฅํ•ด๋‘” ํ…์ŠคํŠธ๋“ค์€ ์ถœ๋ ฅ๋˜์ง€์•Š๋Š”๋‹ค. ex) ํฌ์›Œ๋“œ ๋˜๊ธฐ ์ „ ๋ฐ์ดํ„ฐ ๋‚˜์˜ค๋‚˜)
  • formํƒœ๊ทธ์—์„œ ๋ญ˜ ์ž…๋ ฅํ–ˆ๋ƒ์— ๋”ฐ๋ผ ์„œ๋กœ ๋‹ค๋ฅธ ํŽ˜์ด์ง€๋กœ ๋„˜์–ด๊ฐ€๊ฒŒ ๋œ๋‹ค.

 

 

์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)

'๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต) > JSP' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

Day05(javaBean)  (0) 2021.10.08
Day04(<%@ include %>)  (0) 2021.10.07
Day04(jsp:include๋™์ ํŽ˜์ด์ง€ํ• ๋‹น)  (0) 2021.10.07
Day04(pageModule)  (0) 2021.10.07
Day04(errorํƒ€์ž…์ง€์ •)  (0) 2021.10.07
'๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต)/JSP' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
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  • Day04(pageModule)
JinSeong
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Day04(jsp:forward)
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