Controller

package kr.or.ddit.controller.board;

import java.util.List;

import javax.inject.Inject;

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

import kr.or.ddit.service.IBoardService;
import kr.or.ddit.vo.Board;
import lombok.extern.slf4j.Slf4j;

@Controller
@RequestMapping("/crud/board")
@Slf4j
public class CrudBoardController {
	
	@Inject
	private IBoardService service;
	
	@RequestMapping(value="/register", method = RequestMethod.GET)
	public String crudRegisterForm(Model model) {
		log.info("crudRegisterForm() 실행...!");
		model.addAttribute("board", new Board());
		return "crud/register";
	}
	
	@PostMapping(value="/register")
	public String crudRegister(Board board, Model model) {
		log.info("crudRegister() 실행...!");
		service.register(board);
		model.addAttribute("msg", "등록이 완료되었습니다.");
		return "crud/success";
	}
	
**// 리스트 로 이동하는 메소드**
	@RequestMapping(value="/list", method = RequestMethod.GET)
	public String crudList(Model model) {
		log.info("crudList() 실행...!");
		List<Board> boardList = service.list();
		model.addAttribute("boardList", boardList);
		return "crud/list";
	}
}

Service

interface로 먼저 IBoardSerivce를 생성하고 한다.

package kr.or.ddit.service;

import java.util.List;

import kr.or.ddit.vo.Board;

public interface IBoardService {

	public void register(Board board);

	public List<Board> list();

}

BoardMapper

interface로 root-context에 설정한 대로kr.or.ddit.mapper에 만들어 준다

package kr.or.ddit.mapper;

import java.util.List;

import kr.or.ddit.vo.Board;

public interface BoardMapper {
	public void create(Board board);
	public List<Board> list();
}

Mapper

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "<https://mybatis.org/dtd/mybatis-3-mapper.dtd>">
 <mapper namespace="kr.or.ddit.mapper.BoardMapper">
 
 	<!-- BoardMapper에 있는 함수명이 곧 id가 된다. -->
 	<insert id="create" parameterType="board" useGeneratedKeys="true">
 		<selectKey keyProperty="boardNo" resultType="int" order="BEFORE">
 			select seq_board.nextval from dual
 		</selectKey>
 		insert into board(
 			board_no, title, content, writer, reg_date
 		)values(
 			#{boardNo}, #{title}, #{content}, #{writer}, sysdate
 		)
 	</insert>
 	
**<!-- 기본 게시판 리스트 출력할 쿼리 -->**
 	<select id="list" resultType="board">
 		select
 			board_no, title, content, writer, reg_date
 		from board
 		where 1=1
 		order by board_no desc
 	</select>
 </mapper>

JSP 페이지

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="<http://java.sun.com/jsp/jstl/core>" prefix="c" %>
<%@ taglib uri="<http://java.sun.com/jsp/jstl/fmt>" prefix="fmt" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<h2>List</h2>
	<a href="/crud/board/register">등록</a>
	
	<table border="1">
		<tr>
			<td align="center" width="80">번호</td>
			<td align="center" width="320">제목</td>
			<td align="center" width="100">작성자</td>
			<td align="center" width="180">작성일</td>
		</tr>
		<c:choose>
			<c:when test="${empty boardList }">
				<tr>
					<td colspan="4">조회하실 게시물이 존재하지 않습니다.</td>
				</tr>
			</c:when>
			<c:otherwise>
				<c:forEach items="${boardList }" var="board">
					<tr>
						<td align="center">${board.boardNo }</td>
						<td align="left"><a href="/crud/board/read?boardNo=${board.boardNo }">${board.title }</a></td>
						<td align="right">${board.writer }</td>
						<td align="center"><fmt:formatDate value="${board.regDate }" pattern="yyyy-MM-dd hh:mm"/></td>
					</tr>
				</c:forEach>
			</c:otherwise>
		</c:choose>
	</table>
</body>
</html>