Day06(쿠키 로그인 구현)

CookieUtils.java의 코드내용

package com.study.common.util;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;

public class CookieUtils {
//생성자, exist, getValue, getCookie, createCookie
	
	private Map<String, Cookie> cookieMap = new HashMap<String, Cookie>();
	
	//request에 있는 모든 쿠키들을 맵에다 저장
	public CookieUtils(HttpServletRequest request) {
		Cookie[] cookies = request.getCookies();
		if(cookies != null) {
			for(Cookie cookie : cookies) {
				cookieMap.put(cookie.getName(), cookie);
			}
		}
	}
	
	//name에 해당하는 쿠키가 있냐 없냐? 있으면 true
	public boolean exist(String name) {
		Cookie cookie = cookieMap.get(name);
		
		return cookie != null;
	}
	
	//name이라는 이름의 쿠키의 값
	//쿠키유틸 사용하는 곳에서 null체크 알아서 하도록 하자
	public String getValue(String name) {
		return cookieMap.get(name).getValue();
	}
	
	//name의 쿠키
	public Cookie getCookie(String name) {
		return cookieMap.get(name);
	}
	
	
	public static Cookie createCookie(String name, String value) {
		return createCookie(name, value, "/", "", -1);
	}
	
	public static Cookie createCookie(String name, String value, String path) {
		return createCookie(name, value, path, "", -1);
	}
	
	public static Cookie createCookie(String name, String value, String path, int maxAge) {
		return createCookie(name, value, path, "", maxAge);
	}
	
	public static Cookie createCookie(String name, String value, int maxAge) {
//		Cookie cookie = new Cookie(name, value);
//		cookie.setMaxAge(maxAge);
//		return cookie;
		
		return createCookie(name, value, "/", "", maxAge);
	}
	
	public static Cookie createCookie(String name, String value, String path, String domain, int maxAge) {
		Cookie cookie = new Cookie(name, value);
		cookie.setDomain(domain);
		cookie.setPath(path);
		cookie.setMaxAge(maxAge);
		return cookie;
	}
	
}

 

UserVO.java의 코드내용

package com.study.login.vo;
//이미 제공됐다.

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

public class UserVO {
	private String userId;
	private String userName;
	private String userPass;
	private String userRole;
	
	// toString() 구현
	  @Override 
	  public String toString() {
		  return ToStringBuilder.reflectionToString(this,
				  ToStringStyle.MULTI_LINE_STYLE); 
		}
	// 생성자
	public UserVO() {
		
	}
	
	// 생성자
	public UserVO(String userId, String userName, String userPass, String userRole) {
	this.userId = userId;
	this.userName = userName;
	this.userPass = userPass;
	this.userRole = userRole;
	}

	
	// 맴버필드의 get/set 메서드 생성

	public String getUserId() {
		return userId;
	}

	public void setUserId(String userId) {
		this.userId = userId;
	}

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

	public String getUserPass() {
		return userPass;
	}

	public void setUserPass(String userPass) {
		this.userPass = userPass;
	}

	public String getUserRole() {
		return userRole;
	}

	public void setUserRole(String userRole) {
		this.userRole = userRole;
	}
	
	
	
}

 

UserList.java의 코드내용

package com.study.common.util;
//제공

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.study.login.vo.UserVO;

public class UserList {
	private Map<String, UserVO> usersMap = null;

	public UserList() {
		UserVO user = null;
		usersMap = new HashMap<String, UserVO>();
		user = new UserVO("malja", "말자", "1004", "ADMIN");
		usersMap.put(user.getUserId(), user);
		user = new UserVO("sunja", "순자", "1111", "USER");
		usersMap.put(user.getUserId(), user);
		user = new UserVO("nolja", "야놀자", "1004", "USER");
		usersMap.put(user.getUserId(), user);
		user = new UserVO("milkis", "밀키스", "1004", "MANAGER");
		usersMap.put(user.getUserId(), user);
		user = new UserVO("areum", "아름", "0000", "MANAGER");
		usersMap.put(user.getUserId(), user);
	}

	public UserVO getUser(String id) {
		System.out.println("UserList getUser id=" + id);
		if (usersMap.containsKey(id)) {
			System.out.println("[" + id + "] 회원 존재");
			return usersMap.get(id);
		} else {
			System.out.println("[" + id + "] 회원이 존재하지 않음");
			return null;
		}
	}

	public List<UserVO> getUserList() {
		return new ArrayList<UserVO>(usersMap.values());
	}
	
	public Map<String, UserVO> getUsersMap() {
		return usersMap;
	}
	
} // class

 

login.jsp의 코드내용

<%@page import="com.study.common.util.CookieUtils"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<%
	request.setCharacterEncoding("UTF-8");
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<%@include file="/WEB-INF/inc/header.jsp"%>
<title>Insert title here</title>
</head>
<body>
<!-- 
	조건 종류
	msg라는 파라미터, AUTH쿠키 존재여부
 -->
<%@include file="/WEB-INF/inc/top.jsp"%>

	<%
		String msg = request.getParameter("msg");
		CookieUtils cookieUtils = new CookieUtils(request);
		Cookie cookie = cookieUtils.getCookie("AUTH");
		Cookie saveCookie = cookieUtils.getCookie("SAVE_ID");
		String checked="";
		String id="";
		if(saveCookie != null){
			checked="checked='checked'";
			id=saveCookie.getValue();
		}
		
		
		if(cookie == null){
	%>
	<%=msg %>
	<div class="container">
		<form action="loginCheck.jsp" class="loginForm">
			<h2>로그인</h2>
			<table class="table table-bordered">
				<tbody>
					<tr>
						<th>아이디</th>
						<td><input type="text" name="userId"
							class="form-control input-sm" value="<%=id%>"></td>
					</tr>
					<tr>
						<th>비밀번호</th>
						<td><input type="password" name="userPass"
							class="form-control input-sm"></td>
					</tr>
					<tr>
						<td colspan="2"><label><input type="checkbox"
								name="rememberMe" value="Y" <%=checked %> >ID 기억하기</label></td>
					</tr>
					<tr>
						<td colspan="2">
							<button type="submit" class="btn btn-primary btn-sm pull-right">로그인</button>
						</td>
					</tr>
				</tbody>
			</table>
		</form>
	</div>
	
	<%
	}else{//쿠키있는 경우
	%>
	
	<!-- container -->
		로그인 중
	<a href="logout.jsp" class="btn btn-success btn-sm">로그아웃</a>
	<%
		}
	%>

</body>
</html>

 

loginCheck.jsp의 코드내용

<%@page import="java.util.Map"%>
<%@page import="com.study.common.util.CookieUtils"%>
<%@page import="java.net.URLEncoder"%>
<%@page import="com.study.login.vo.UserVO"%>
<%@page import="com.study.common.util.UserList"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
	request.setCharacterEncoding("UTF-8");
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<%@include file="/WEB-INF/inc/header.jsp" %>
<title></title>
</head>
<body>

<%
	String id = request.getParameter("userId"); //login에서 받아온 입력값
	String pw = request.getParameter("userPass"); //login에서 받아온 입력값
	String rememberMe = request.getParameter("rememberMe");
	String redirectPage = "";
	
	if(id == null || id.isEmpty() || pw == null || pw.isEmpty()){
		//뭔가 입력 안했을 때
		redirectPage = "login.jsp?msg=" + URLEncoder.encode("id 또는 pw가 없습니다.", "UTF-8");
	}
	
	//id를 못 찾을 때
	UserList userList = new UserList();
	UserVO user = userList.getUser(id); //없으면 null 있으면 해당 userVO를 리턴
	
	if(user==null){ //user가 없을 때, id가 틀렸을 때
		if(redirectPage.length()<2){
			redirectPage = "login.jsp?msg=" + URLEncoder.encode("id또는 pw 확인해주세요.", "UTF-8");		
		}
	}else{ //id는 맞았다.
		if(pw.equals(user.getUserPass())){
			//pw까지 맞음
			Cookie cookie = CookieUtils.createCookie("AUTH", id);
			response.addCookie(cookie);
			redirectPage="login.jsp";
			
			//로그인 성공 + id기억하기 체크 되어있는 경우
			if(rememberMe != null){
				if(rememberMe.equals("Y")){
					Cookie cookie2 = CookieUtils.createCookie("SAVE_ID", id, 60*60*24*7);
					response.addCookie(cookie2);
				}else{//체크안된경우
					Cookie cookie2 = CookieUtils.createCookie("SAVE_ID", id, 0);
					response.addCookie(cookie2);
				}
			}
			
		}else{//id는 맞았지만 pw는 틀림
			if(redirectPage.length()<2){
				redirectPage = "login.jsp?msg=" + URLEncoder.encode("id또는 pw 확인해주세요.", "UTF-8");		
			}
		}
	}
	response.sendRedirect(redirectPage);
%>



	
	
</body>
</html>

 

logout.jsp의 코드내용

<%@page import="com.study.common.util.CookieUtils"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
	request.setCharacterEncoding("UTF-8");
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<%@include file="/WEB-INF/inc/header.jsp" %>
<title>Insert title here</title>
</head>
<body>
<%@include file="/WEB-INF/inc/top.jsp" %> 
<%
	Cookie cookie = CookieUtils.createCookie("AUTH", "", 0);
	response.addCookie(cookie);
	response.sendRedirect("login.jsp");
	
%>

</body>
</html>