SpringBoot/day49 / 23.11.14(화) / (핀테크) Spring 및 Ai 기반 핀테크 프로젝트 구축

허니몬·2023년 11월 16일

Spring

(핀테크) Spring 및 Ai 기반 핀테크 프로젝트 구축 / Spring

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7/14

P09_mvc_redirect

com.web.member.dto

MemberDTO

package com.web.member.dto;

public class MemberDTO {
	private String id;
	private String pwd;
	private String name;

	public MemberDTO() {
		super();
	}
	public MemberDTO(String id, String pwd, String name) {
		super();
		this.id = id;
		this.pwd = pwd;
		this.name = name;
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@Override
	public String toString() {
		return "[id=" + id + ", pwd=" + pwd + ", name=" + name + "]";
	}
}

com.web.member

HomeController

package com.web.member;


import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.web.member.dto.MemberDTO;

/**
 * Handles requests for the application home page.
 */
@Controller
public class HomeController {
	
	@RequestMapping("/index")
	public String index() {
		return "re/index";
	}
	// redirect 방식으로 이동하여 데이터를 전달 할 때에는 RedirectAttributes 사용 
	@RequestMapping("/result")
	public String resultRedirect(HttpServletRequest request, Model model, RedirectAttributes ra) {
		String id = request.getParameter("id");
		if(id.equals("abc")) {
			//model.addAttribute("result", "로그인 성공"); // 전달 X
			ra.addFlashAttribute("result", "로그인 성공");
			MemberDTO dto = new MemberDTO();
			dto.setId(id);
			ra.addFlashAttribute("test", dto);
			return "redirect:rsOk";
		}
		return "redirect:rsNo";
	}
	@RequestMapping("/rsOk")
	public String resultOk(Model model) {
		return "re/rsOk";
	}
	@RequestMapping("/rsNo")
	public String resultNo(Model model) {
		return "re/rsNo";
	}
	
}

Q03_mvc_quiz 추가

com.web.member...

MemberController

package com.care.member.controller;

import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.care.member.dao.MemberDAO;
import com.care.member.dto.MemberDTO;
import com.care.member.service.MemberService;

@Controller
public class MemberController {
	
	@Autowired
	private MemberService ms;
	
	@GetMapping("/index")
	public String index() {
		return "/member/index";
	}
	
	@GetMapping("/joinForm")
	public String join() {
		return "/member/joinForm";
	}
	
	@PostMapping("/join")
	public String join(MemberDTO dto) {
		ms.join(dto);
		return "/member/index";
	}
	
	@GetMapping("/list")
	public String list(Model model) {
		ms.list(model);
		return "/member/memberList";
	}
	
	@RequestMapping("/check")
	public String check(@RequestParam("id") String id, @RequestParam("pwd") String pwd,
						Model model, RedirectAttributes ra) {
		ms.check(id, pwd, model);
		ra.addFlashAttribute("reMap", model);
		return "redirect:/index";
	}
	
}

MemberDAO

package com.care.member.dao;

import java.util.ArrayList;

import org.springframework.stereotype.Component;

import com.care.member.dto.MemberDTO;
import com.care.member.dto.UserCheckDTO;
@Component
public class MemberDAO {
	private ArrayList<MemberDTO> list;

	public MemberDAO() {
		list = new ArrayList<>();
	}
	
	// 회원가입
	public void join(MemberDTO dto) {
		list.add(dto);
		System.out.println("등록 성공");
	}
	// 회원 목록
	public ArrayList<MemberDTO> list() {
		return list;
	}
	// 로그인 체크 
	public UserCheckDTO check(String id, String pwd) {
		UserCheckDTO dto = new UserCheckDTO();
		if(list.size() != 0) {
			for(MemberDTO man : list) {
				if(id.equals(man.getId())) {
					if(pwd.equals(man.getPwd())) {
						dto.setChk(0); // 로그인 성공
						dto.setName(man.getName());
						return dto;
					} else {
						dto.setChk(1); // 비밀번호 오류
						return dto; 
					}
				}
			}
		}
		// 회원이 없거나 id 가 없으면 0
		if(dto.getChk() == 0) {
			dto.setChk(-1); // 아이디 없음
		}
		return dto;
	}
}

UserCheckDTO

package com.care.member.dto;

public class UserCheckDTO {
	private int chk; // 0 : 로그인 성공, 1: 비밀번호 오류, -1 : id 오류
	private String name;

	public int getChk() {
		return chk;
	}

	public void setChk(int chk) {
		this.chk = chk;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	
}

MemberService

package com.care.member.service;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;

import com.care.member.dao.MemberDAO;
import com.care.member.dto.MemberDTO;
import com.care.member.dto.UserCheckDTO;

@Service
public class MemberService {
	@Autowired
	private MemberDAO dao;

	// 회원가입
	public void join(MemberDTO dto) {
		if(dto.getId()!="" && dto.getPwd()!="" && dto.getName()!="") {
			dao.join(dto);
		}else {
			System.out.println("실패");
		}
	}

	// 회원 목록
	public void list(Model model) {
		model.addAttribute("list", dao.list());
	}
	// 로그인 체크
	public void check(String id, String pwd, Model model) {
		UserCheckDTO dto = dao.check(id, pwd);
		model.addAttribute("UserCheck", dto);
	}
}

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>    
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Index</title>
<script type="text/javascript">
	function userCheck(chk) {
		if(chk ==1){
			alert("비밀번호 오류");
		}
		else if (chk == -1){
			alert("아이디 오류");
		}
	}
</script>
</head>
<body>
	<h1>Index</h1>
	<c:choose>
		<c:when test="${reMap == null || reMap.UserCheck.chk !=0 }">
			<script type="text/javascript">
				userCheck(${reMap.UserCheck.chk})
			</script>
			<form action="check">
				<input type="text" name="id" placeholder="id"/> <br>
				<input type="text" name="pwd" placeholder="password"/> <br>
				<input type="submit" value="login"/>
			</form>
			<a href="joinForm"> 회원가입</a>
		</c:when>
		<c:otherwise>
			<h2>${reMap.UserCheck.name } 님 안녕하세요</h2>
		</c:otherwise>
	</c:choose>
	<br>
	<a href="list"> 모든 회원보기</a>
</body>
</html>

P10_Cookie_Session

com.web.controller

CookieController

package com.web.controller;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class CookieController {
//	@RequestMapping("/cookie")
//	public String myCookie(HttpServletResponse response,
//							@CookieValue(value="myCookie", required=false) Cookie cook) {
//		System.out.println("cookie : " + cook);
//		Cookie cookie = new Cookie("myCookie", "쿠키생성");
//		cookie.setMaxAge(10);
//		response.addCookie(cookie);
//		return "cookie";
//	}
	
	@RequestMapping("/cookie")
	public String myCookie(HttpServletResponse response,
							@CookieValue(value="myCookie", required=false) Cookie cook, Model model) {
		if(cook == null){
			System.out.println("cookie : " + cook);
			Cookie cookie = new Cookie("myCookie", "쿠키생성");
			cookie.setMaxAge(10);
			response.addCookie(cookie);
			return "cookie";
		}
		model.addAttribute("cook", cook.getValue());
		return "cookie";
	}
	
	@RequestMapping("popup")
	public String popup() {
		return "popup";
	}
}

cookie.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>cookie.jsp</title>
<script type="text/javascript">
	function popup(){
		if("${cook}" == ""){
			window.open("popup", "", "top=300, left=500, width=400, height=300")
		}
	}
</script>
</head>
<body onload="popup()">
	<h1>cookie 페이지</h1>
	<br/>
	<h2>${cookie }</h2>
</body>
</html>

popup.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>popup.jsp</title>
</head>
<body>
	<h2>쿠키를 위한 팝업창</h2>
</body>
</html>

SessionController

package com.web.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class SessionController {
	@RequestMapping("makeSession")
	public String makeSession(HttpServletRequest request) {
		
		HttpSession session = request.getSession();
		session.setAttribute("id", "test");
		session.setAttribute("age", "20");
		session.setAttribute("addr", "서울시 오디?");
		return "makeSession";
		
	}
	
	@RequestMapping("resultSession")
	public String resultSession() {
		return "resultSession";
	}
	
	@RequestMapping("deleteSession")
	public String deleteSession(HttpSession session) {
		session.removeAttribute("id");
		session.removeAttribute("age");
		session.removeAttribute("addr");
		return "deleteSession";
	}
}

makeSession.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>makeSession.jsp</title>
</head>
<body>
	<h1>세션 생성</h1>
	<br/>
	<h2>id : ${id }</h2>
	<h2>age : ${age }</h2>
	<h2>addr : ${addr }</h2>
	<a href="resultSession">세션 확인</a> &nbsp; <a href="deleteSession">세션 삭제</a>
</body>
</html>

resultSession.jsp

<%@ 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>
	<h1>세션 확인</h1>
	<br/>
	<h2>id : ${id }</h2>
	<h2>age : ${age }</h2>
	<h2>addr : ${addr }</h2>
	<a href="makeSession">세션 생성</a> &nbsp; <a href="deleteSession">세션 삭제</a>
</body>
</html>

deleteSession.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>deleteSession.jsp</title>
</head>
<body>
	<h1>세션 삭제</h1>
	<br/>
	<h2>id : ${id }</h2>
	<h2>age : ${age }</h2>
	<h2>addr : ${addr }</h2>
	<a href="makeSession">세션 생성</a> &nbsp; <a href="resultSession">세션 확인</a>
</body>
</html>

LoginController

package com.web.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class LoginController {

	@RequestMapping("login")
	public String loginGet() {
		return "/login/login";
	}
	
	@RequestMapping("checkUser")
	public String checkUser(HttpServletRequest request) {
		String id = "test";
		String pwd = "1234";
		String name = "테스트";
		
		String reqid = request.getParameter("id");
		String reqpwd = request.getParameter("pwd");
		
		HttpSession session = request.getSession();
		if(id.equals(reqid) && pwd.equals(reqpwd) || session.getAttribute("loginUser") != null){
			session.setAttribute("loginUser", name);
			return "/login/main";
		}
		return "redirect:/login";
	}
	
	@RequestMapping("logout")
	public String logout(HttpServletRequest request) {
		HttpSession session = request.getSession();
		session.invalidate();
		return "login/logout";
	}
}

login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>login.jsp</title>
</head>
<body>
	<h1>로그인</h1>
	<c:import url="/cookie/"/> <!-- 팝업띄우기 위함 -->
	<c:choose>
		<c:when test="${loginUser == null}">
			<form action="checkUser" method="post">
				<input type="text" name="id" placeholder="id"> <br><br>
				<input type="text" name="pwd" placeholder="password"> <br><br>
				<input type="submit" value="submit">
			</form>
		</c:when>
		<c:otherwise>
			<h3>${loginUser } 님은 로그인 상태입니다.</h3>
			<a href="checkUser"> main</a>
		</c:otherwise>
	</c:choose>
</body>
</html>

logout.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>logout.jsp</title>
<script type="text/javascript">
	alert("로그아웃 되었습니다.");
	location.href="login";
</script>
</head>
<body>
</body>
</html>

main.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>main.jsp</title>
</head>
<body>
	<h1>main</h1>
	<c:choose>
		<c:when test="${loginUser }== null">
			<script type="text/javascript">location.href="login"</script>
		</c:when>
		<c:otherwise>
			<h3>${loginUser }님 안녕하세요</h3>
			<a href="logout">로그아웃</a> &nbsp; <a href="login">로그인</a>
		</c:otherwise>
	</c:choose>
	
</body>
</html>

허니몬

Fintech

다음 포스트

SpringBoot/day49 / 23.11.14(화) / (핀테크) Spring 및 Ai 기반 핀테크 프로젝트 구축

(핀테크) Spring 및 Ai 기반 핀테크 프로젝트 구축 / Spring

P09_mvc_redirect

com.web.member.dto

MemberDTO

com.web.member

HomeController

Q03_mvc_quiz 추가

com.web.member...

MemberController

MemberDAO

UserCheckDTO

MemberService

index.jsp

P10_Cookie_Session

com.web.controller

CookieController

cookie.jsp

popup.jsp

SessionController

makeSession.jsp

resultSession.jsp

deleteSession.jsp

LoginController

login.jsp

logout.jsp

main.jsp

SpringBoot/day50 / 23.11.15(수) / (핀테크) Spring 및 Ai 기반 핀테크 프로젝트 구축

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