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index.jsp
<%@page import="sample02.Human"%>
<%@page import="java.net.URLEncoder"%>
<%@ 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>
response(응답): sendRedirect -> HttpServletResponse
<%--
request.setCharacterEncoding("utf-8");
String name = "홍길동";
name = URLEncoder.encode(name);
response.sendRedirect("NewFile.jsp?name="+name);
--%>
<%--
String name = "일지매";
request.setAttribute("name", name);
// pageContext : 내장객체
pageContext.forward("NewFile.jsp");
--%>
<%--
int num = 1;
String name = "성춘향";
Human human = new Human(num, name);
request.setAttribute("human", human); // 짐싸
pageContext.forward("NewFile1.jsp"); // 잘가짐
--%>
<%
int num = 2;
String name = "정수동";
Human human = new Human(num, name);
//많이 사용할 수록 무거워진다
session.setAttribute("hman", human);
response.sendRedirect("NewFile2.jsp");
%>
</body>
</html>
NewFile.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
request.setCharacterEncoding("utf-8");
//String name = request.getParameter("name");
String name = (String)request.getAttribute("name");
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h3>NewFile.jsp</h3>
<input type="text" value="<%=name %>"><br>
<p><%=name %></p>
</body>
</html>NewFile1.jsp
<%@page import="sample02.Human"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
Object obj = request.getAttribute("human");
Human human = (Human)obj;
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h3>NewFile1.jsp</h3>
num:<input type="text" value="<%= human.getNum()%>">
<br>
name:<p><%=human.getName() %></p>
</body>
</html>NewFile2.jsp
<%@page import="sample02.Human"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
Human human = (Human)session.getAttribute("hman");
int number = human.getNum();
String name = human.getName();
session.removeAttribute("hman");
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<p>number:<%=number %></p>
name:<input type="text" value="<%=name%>">
</body>
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