스프링부트 강좌 53강(블로그 프로젝트)

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출처:

https://www.youtube.com/watch?v=qz4yyaRANBQ&list=PL93mKxaRDidECgjOBjPgI3Dyo8ka6Ilqm&index=55

<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Summernote with Bootstrap 4</title>
    <script src="https://code.jquery.com/jquery-3.5.1.min.js" crossorigin="anonymous"></script>
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<!-- summer note -->
    <link href="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.css" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.js"></script>
  </head>
  <body>
    <div id="summernote"></div>
    <script>
      $('#summernote').summernote({
        placeholder: 'Hello Bootstrap 4',
        tabsize: 2,
        height: 100
      });
    </script>
  </body>
</html>

위 문장 중 복사해서

<link href="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.css " rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.js ">

<script>
$('#summernote').summernote({
placeholder : 'Hello Bootstrap 4',
tabsize : 2,
height : 100
});
</script>

클래스로 찾게 변경

굿

23분30초부터 흘러가는 맥락 잡아 줌

package com.cosblog.controller;

import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;

import com.cosblog.config.auth.PrincipalDetail;

@Controller
public class BoardController {

	
	//public String index(@AuthenticationPrincipal PrincipalDetail principal)
	
	@GetMapping({"","/"})
	public String index() {
		
		return "index";
	}
	
	@GetMapping("/board/saveForm")
	public String saveForm() {
		
		return "board/saveForm";
	}
}

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags"%>
<sec:authorize access="isAuthenticated()">
	<sec:authentication property="principal" var="principal" />
</sec:authorize>

<!DOCTYPE html>
<html lang="en">
<head>
<title>Cos 블로그</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/js/bootstrap.bundle.min.js"></script>

<!-- summer note -->
<link href="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote-bs4.min.js"></script>


</head>
<body>
	<nav class="navbar navbar-expand-md bg-dark navbar-dark">
		<a class="navbar-brand" href="/">Cos</a>
		<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
			<span class="navbar-toggler-icon"></span>
		</button>
		<div class="collapse navbar-collapse" id="collapsibleNavbar">

			<c:choose>
				<c:when test="${empty principal}">
					<ul class="navbar-nav">
						<li class="nav-item"><a class="nav-link" href="/auth/loginForm">로그인</a></li>
						<li class="nav-item"><a class="nav-link" href="/auth/joinForm">회원가입</a></li>
					</ul>
				</c:when>
				<c:otherwise>
					<ul class="navbar-nav">
						<li class="nav-item"><a class="nav-link" href="/board/saveForm">글쓰기</a></li>
						<li class="nav-item"><a class="nav-link" href="/user/updateForm">회원정보</a></li>
						<li class="nav-item"><a class="nav-link" href="/logout">로그아웃</a></li>
					</ul>
				</c:otherwise>
			</c:choose>
		</div>
	</nav>
	<br />

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ include file="../layout/header.jsp"%>

<div class="container">
	<form action="/auth/loginProc" method="POST">
		<div class="form-group">
			<label for="email">Title</label> <input type="text" class="form-control" placeholder="Enter title" id="title">
		</div>

		<div class="form-group">
			<label for="comment">Content:</label>
			<textarea class="form-control summernote" rows="5" id="content"></textarea>
		</div>

	</form>
	<button id="btn-save" class="btn btn-primary">글 저장</button>
	
</div>

<!-- summer note -->
<script>
	$('.summernote').summernote({

		tabsize : 2,
		height : 300
	});
</script>
<script src="/js/board.js"></script>
<%@ include file="../layout/footer.jsp"%>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ include file="../layout/header.jsp"%>

<div class="container">
	<form action="/auth/loginProc" method="POST">
		<div class="form-group">
			<label for="email">Username</label> 
			<input type="text" name="username" class="form-control" placeholder="Enter Username" id="username">
		</div>
		
		<div class="form-group">
			<label for="pwd">Password</label> 
			<input type="password" name="password" class="form-control" placeholder="Enter password" id="password">
		</div>
		
	
		
		<button id="btn-login" class="btn btn-primary">로그인</button>
		
	</form>
	</div>
<!-- 로그인때 자바스크립트 사용 안할거임.
<script src="/js/user.js"></script> -->
<%@ include file="../layout/footer.jsp"%>

let index = {
  init: function () {
    $("#btn-save").on("click", () => {
      this.save();
    });
  },

  save: function () {
    let data = {
      title: $("#title").val(),
      content: $("#content").val(),
    };

    $.ajax({
      type: "POST",
      url: "/api/board",
      data: JSON.stringify(data),
      contentType: "application/json; charset=utf-8",
      dataType: "json",
    })
      .done(function (resp) {
        alert("글쓰기가 완료되었습니다.");
        location.href = "/";
      })
      .fail(function (error) {
        alert(JSON.stringify(error));
      });
  },
};

index.init();

package com.cosblog.controller.api;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import com.cosblog.config.auth.PrincipalDetail;
import com.cosblog.dto.ResponseDto;
import com.cosblog.model.Board;
import com.cosblog.service.BoardService;


@RestController
public class BoardApiController {
	
	@Autowired
	private BoardService boardService;
	
	@PostMapping("/api/board")
	public ResponseDto<Integer> save(@RequestBody Board board,@AuthenticationPrincipal PrincipalDetail principal) {
		boardService.글쓰기(board, principal.getUser());
		return new ResponseDto<Integer>(HttpStatus.OK.value(), 1);
	}
}

package com.cosblog.repository;

import org.springframework.data.jpa.repository.JpaRepository;

import com.cosblog.model.Board;

public interface BoardRepository extends JpaRepository<Board, Integer>{

}

package com.cosblog.service;



import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.cosblog.model.Board;
import com.cosblog.model.RoleType;
import com.cosblog.model.User;
import com.cosblog.repository.BoardRepository;

//스프링이 컴포넌트 스캔을 통해서 bean에 등록을 해줌
@Service
public class BoardService {

	@Autowired
	private BoardRepository boardRepository;
	
	@Transactional
	public void 글쓰기(Board board, User user) {
		board.setCount(0);
		board.setUser(user);
		boardRepository.save(board);
	}
	
	
	/* 이 로그인도 사용 안 할거라 삭제
	 * @Transactional(readOnly = true)//Select할 때 트랜잭션 시작, 서비스 종료시에 트랜잭션 종료(정합성)
	 * public User 로그인(User user) { return
	 * userRepository.findByUsernameAndPassword(user.getUsername(),
	 * user.getPassword()); }
	 */
}

package com.cosblog.model;

import java.sql.Timestamp;
import java.util.List;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.Lob;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;

import org.hibernate.annotations.ColumnDefault;
import org.hibernate.annotations.CreationTimestamp;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;



@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Entity
public class Board {

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	private int id;
	
	@Column(nullable = false, length = 100)
	private String title;
	
	@Lob //대용량 데이터
	private String content; //섬머노트 라이브러리<html>태그가 섞여서 디자인 됨.
	
	//@ColumnDefault("0") //조회수 강제로 넣어줄 것임.
	private int count; 
	
	@ManyToOne(fetch = FetchType.EAGER) //Many = Board, User = One
	@JoinColumn(name="userId")//DB테이블 필드값은 userId로 만들어지고 연관관계는 ManyToOne으로 만들어진다.
	private User user;//DB는 오브젝트를 저장할 수 없다. FK, 자바는 오브젝트를 저장할 수 있다.
	
	@OneToMany(mappedBy = "board", fetch = FetchType.EAGER) //Many = Board, User = One
	private List<Reply> reply;//DB는 오브젝트를 저장할 수 없다. FK, 자바는 오브젝트를 저장할 수 있다.
	
	
	@CreationTimestamp
	private Timestamp createDate;
	
}

package com.cosblog.controller.api;

import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import com.cosblog.dto.ResponseDto;
import com.cosblog.model.RoleType;
import com.cosblog.model.User;
import com.cosblog.service.UserService;

@RestController
public class UserApiController {
	
	@Autowired
	private UserService userService;
	
	
	//@Autowired //메서드 파라메터 대신 이렇게 넣어줘도 가능하다.
	//private HttpSession session;
	
	@PostMapping("/auth/joinProc")
	public ResponseDto<Integer> save(@RequestBody User user) {
		System.out.println("UserApiController : save 호출됨");
		
		userService.회원가입(user);
		return new ResponseDto<Integer>(HttpStatus.OK.value(), 1);//자바오브젝트를 JSON으로 변환해서 리턴
	}
	
	//전통적인 로그인 방식, 스프링 시큐리티 이용해서 로그인하면 이 방식 사용하지 않는다.
	/*
	 * @PostMapping("/api/user/login") public ResponseDto<Integer>
	 * login(@RequestBody User user, HttpSession session){
	 * System.out.println("UserApiController:login호출됨"); User principal =
	 * userService.로그인(user); //접근주체
	 * 
	 * if(principal != null) { session.setAttribute("principal", principal); }
	 * 
	 * return new ResponseDto<Integer>(HttpStatus.OK.value(),1);
	 * 
	 * }
	 */
}

package com.cosblog.config.auth;

import java.util.ArrayList;
import java.util.Collection;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import com.cosblog.model.User;

import lombok.Getter;


//스프링 시큐리티가 로그인 요청을 가로채서 로그인을 진행하고 완료가 되면 UserDeatils 타입의 오브젝트를
//스프링 시큐리티의 고유한 세션저장소에 저장을 해준다.
@Getter
public class PrincipalDetail implements UserDetails {
	private User user;//콤포지션 :객체를 품고 있는거

	
	public PrincipalDetail(User user) {
		this.user = user;
	}
	

	@Override
	public String getPassword() {
		// TODO Auto-generated method stub
		return user.getPassword();
	}

	@Override
	public String getUsername() {
		// TODO Auto-generated method stub
		return user.getUsername();
	}

	//계정이 만료되지 않았는지 리턴한다. (true:만료안됨)
	@Override
	public boolean isAccountNonExpired() {
		// TODO Auto-generated method stub
		return true;
	}

	//계정이 잠겨있지 않았는지 리턴한다. (true:잠기지 않음)
	@Override
	public boolean isAccountNonLocked() {
		// TODO Auto-generated method stub
		return true;
	}

	//비밀번호가 만료되지 않았는지 리턴한다.(true:만료안됨)
	@Override
	public boolean isCredentialsNonExpired() {
		// TODO Auto-generated method stub
		return true;
	}
	
	//계정이 활성화(사용가능)인지 리턴한다.(true:활성화)
	@Override
	public boolean isEnabled() {
		// TODO Auto-generated method stub
		return true;
	}
	
	//계정이 갖고있는 권한 목록을 리턴한다. (권한이 여러개 있을 수 있어서 루프를 돌아야 하는데 우리는 한개만)
	//권한이 여러개면 for문을 돌려야 함.
	@Override
	public Collection<? extends GrantedAuthority> getAuthorities() {
		
		Collection<GrantedAuthority> collectors = new ArrayList<>();		
		collectors.add(()->{return "ROLE_"+user.getRole();});
		
		return collectors;
	}
}

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