기록 해두자.

<%@ 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="fn" uri="<http://java.sun.com/jsp/jstl/functions>"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "<http://www.w3.org/TR/html4/loose.dtd>">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<%@ include file="/WEB-INF/include/include-header.jspf" %>
</head>
<body>
	<table class="board_view">
		<colgroup>
			<col width="15%"/>
			<col width="35%"/>
			<col width="15%"/>
			<col width="35%"/>
		</colgroup>
		<caption>게시글 상세</caption>
		<tbody>
			<tr>
				<th scope="row">글 번호</th>
				<td>${map.IDX }</td>
				<th scope="row">조회수</th>
				<td>${map.HIT_CNT }</td>
			</tr>
			<tr>
				<th scope="row">작성자</th>
				<td>${map.CREA_ID }</td>
				<th scope="row">작성시간</th>
				<td>${map.CREA_DTM }</td>
			</tr>
			<tr>
				<th scope="row">제목</th>
				<td colspan="3">${map.TITLE }</td>
			</tr>
			<tr>
				<td colspan="4">${map.CONTENTS }</td>
			</tr>
			<tr>
				<th scope="row">첨부파일</th>
				<td colspan="3">
				<c:choose>
					<c:when test="${fn:length(list) >0 }"> <!--  boolean  -->
						<c:forEach var="row" items="${list}">
							<input type="hidden" id="IDX" value="${row.IDX }">
							<a href="#this" name="file">${row.ORIGINAL_FILE_NAME }</a>
							(${row.FILE_SIZE }kb)
						</c:forEach>
					</c:when>
						<c:otherwise>첨부된 파일이 없습니다.!</c:otherwise>
				</c:choose>
				</td>
			</tr>
		</tbody>
	</table>
	
	<a href="#this" class="btn" id="list">목록으로</a>
	<a href="#this" class="btn" id="update">수정하기</a>	
	<a href="#this" class="btn" id="delete">삭제하기</a>
	
	<!-- 이전 글 버튼: PREV_IDX 값이 있을 때만 버튼 노출 -->
	<c:if test="${prevNextBoard.PREV_IDX != null}">
		<a href="#this" class="btn" id="preBtn">이전 페이지(게시글)</a>
	</c:if>
	
	<!-- 다음 글 버튼: NEXT_IDX 값이 있을 때만 버튼 노출 -->
	<c:if test="${prevNextBoard.NEXT_IDX != null}">
		<a href="#this" class="btn" id="nextBtn">다음 페이지(게시글)</a>
	</c:if>
	
	<%@ include file="/WEB-INF/include/include-body.jspf" %>
	<script type="text/javascript">

		$(document).ready(function(){
			$("#list").on("click", function(e){ //목록으로 버튼
				e.preventDefault();
				fn_openBoardList();
			});
			
			$("#update").on("click", function(e){ //수정하기 버튼
				e.preventDefault();
				fn_openBoardUpdate();
			});
			
			$("#delete").on("click", function(e) {
				e.preventDefault();
				fn_openBoardDelete();
			})
			
			$("#preBtn").on("click", function(e) {
				e.preventDefault();
				fn_openBoardPreview();
			})
			
			$("#nextBtn").on("click", function(e) {
				e.preventDefault();
				fn_openBoardNext();
			})
			
			$("a[name='file']").on("click", function(e){ //파일이름
				e.preventDefault();
				fn_downloadFile($(this));
			});
		});
		
		function fn_openBoardList(){
			var comSubmit = new ComSubmit();
			comSubmit.setUrl("<c:url value='/sample/openBoardList.do' />");
			comSubmit.submit();
		}
		
		function fn_openBoardUpdate(){
			var idx = "${map.IDX}";
			var comSubmit = new ComSubmit();
			comSubmit.setUrl("<c:url value='/sample/openBoardUpdate.do' />");
			comSubmit.addParam("IDX", idx);
			comSubmit.submit();
		}
		
		function fn_openBoardDelete(){
			if (confirm("정말로 삭제하시겠습니까?")) {
					var idx = "${map.IDX}";
					var comSubmit = new ComSubmit();
					comSubmit.setUrl("<c:url value='/sample/deleteBoard.do' />");
					comSubmit.addParam("IDX", idx);
					comSubmit.submit();
			}
		}
		
		function fn_openBoardPreview(){
			var idx = "${map.IDX}";
			var prev = "${prevNextBoard.PREV_IDX}";
			var next = "${prevNextBoard.NEXT_IDX}";
			var comSubmit = new ComSubmit();
			comSubmit.setUrl("<c:url value='/sample/openBoardDetail.do' />");
			comSubmit.addParam("IDX", prev);
			comSubmit.submit();
		}
		
		function fn_openBoardNext(){
			var idx = "${map.IDX}";
			var prev = "${prevNextBoard.PREV_IDX}";
			var next = "${prevNextBoard.NEXT_IDX}";
			var comSubmit = new ComSubmit();
			comSubmit.setUrl("<c:url value='/sample/openBoardDetail.do' />");
			comSubmit.addParam("IDX", next);
			comSubmit.submit();
		}
				
		function fn_downloadFile(obj)
		{
			var idx = obj.parent().find("#IDX").val();
			var comSubmit = new ComSubmit();
			comSubmit.setUrl("<c:url value='/common/downloadFile.do'/>");
			comSubmit.addParam("IDX", idx);
			comSubmit.submit();
		}
	</script>
</body>
</html>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "<http://mybatis.org/dtd/mybatis-3-mapper.dtd>">

<mapper namespace="sample">	
	<select id="selectBoardList" parameterType="hashmap" resultType="hashmap">
		<include refid="common.pagingPre"/>
		<![CDATA[
			SELECT
				ROW_NUMBER() OVER (ORDER BY IDX DESC) RNUM,
				IDX,
				TITLE,
				HIT_CNT,
				CREA_DTM
			FROM
				TB_BOARD
			WHERE
				DEL_GB = 'N'
		]]>
		
		<!-- [수정 시작] 검색 조건 동적 쿼리 추가 -->
		<if test="searchKeyword != null and searchKeyword != ''">
            
            <choose>
                <!-- 콤보박스 선택: 제목 (TITLE) -->
                <when test='searchType == "TITLE"'>
                	AND TITLE LIKE '%' || #{searchKeyword} || '%'
                </when>
                <!-- 콤보박스 선택: 내용 (CONTENTS) -->
                <when test='searchType == "CONTENTS"'>
                    AND CONTENTS LIKE '%' || #{searchKeyword} || '%'
                </when>
                <!-- 콤보박스 선택: 작성자 ID (ID) -->
                <when test='searchType == "ID"'>
                    AND CREA_ID LIKE '%' || #{searchKeyword} || '%'
                </when>

            </choose>
        </if>
        <!-- [수정 끝] 검색 조건 동적 쿼리 추가 -->
		
		<include refid="common.pagingPost"/>
	</select>
	
	<insert id="insertBoard" parameterType="hashmap" useGeneratedKeys="true" keyProperty="IDX">
		<selectKey keyProperty="IDX" resultType="string" order="BEFORE">
			SELECT SEQ_TB_BOARD_IDX.NEXTVAL FROM DUAL
		</selectKey>
		<![CDATA[
        	INSERT INTO TB_BOARD
        	(
            	IDX,
            	TITLE, 
            	CONTENTS, 
            	HIT_CNT, 
            	DEL_GB, 
            	CREA_DTM, 
            	CREA_ID
       		 )
        	VALUES
        	(
            	#{IDX},
            	#{TITLE,jdbcType=VARCHAR}, 
            	#{CONTENTS,jdbcType=VARCHAR}, 
            	0, 
            	'N', 
            	SYSDATE, 
            	'Admin'
        	)
		]]>
	</insert>
	
	<!-- <update id="updateHitCnt" parameterType="hashmap">
		<![CDATA[
			UPDATE TB_BOARD
			SET
				HIT_CNT = NVL(HIT_CNT,0)+1 
			WHERE
				IDX=#{IDX]
		]]>
	</update> --><!-- HIT_CNT 가 null일경우, 두번째 반환 -->
	
	<update id="updateHitCnt" parameterType="hashmap">
		<![CDATA[
			UPDATE TB_BOARD
			SET HIT_CNT = HIT_CNT + 1
			WHERE IDX=#{IDX}
		]]>
	
	</update>
	
	<select id="selectBoardDetail" parameterType="hashmap" resultType="hashmap">
		<![CDATA[
			SELECT
				IDX,
				HIT_CNT,
				CREA_ID,
				CREA_DTM,
				TITLE,
				CONTENTS
			FROM
				TB_BOARD
			WHERE
				IDX=#{IDX}
		]]>
	</select>
	
	<select id="boardUpdate" parameterType="hashmap" resultType="hashmap">
		<!-- <![CDATA[
			UPDATE TB_BOARD
			SET
				TITLE = #{TITLE}, 
				CONTENTS = #{CONTENTS}
			WHERE
				IDX = #{IDX}
		]]> -->
		<![CDATA[
			SELECT
			 	IDX,
			 	HIT_CNT,
			 	CREA_ID,
			 	CREA_DTM,
			 	TITLE,
			 	CONTENTS
			 FROM
			 	TB_BOARD
			 WHERE IDX=#{IDX}
		]]>
	</select>
	
	<update id="updateBoard" parameterType="hashmap">
		<![CDATA[
			UPDATE TB_BOARD
			SET TITLE=#{TITLE},
				CONTENTS=#{CONTENTS}
			WHERE
				IDX=#{IDX}
		]]>
	</update>
	
	<delete id="deleteBoard" parameterType="hashmap">
		<!-- <![CDATA[
			DELETE FROM
			TB_BOARD
			WHERE IDX=#{IDX}
		]]> -->
		<![CDATA[
			UPDATE TB_BOARD
			SET DEL_GB = 'Y'
			WHERE IDX=#{IDX}
		]]>
		
	</delete>
	
	<select id="selectPrevNextBoard" parameterType="hashmap" resultType="hashmap">
	<![CDATA[
	select 
		(select MAX(IDX) from TB_BOARD where IDX < #{IDX} and DEL_GB = 'N') AS PREV_IDX,
		(select MIN(IDX) from TB_BOARD where IDX > #{IDX} and DEL_GB = 'N') AS NEXT_IDX
	from
	dual
	]]>	
	</select>
	
	
	<insert id="insertFile" parameterType="hashmap">
		<![CDATA[
			INSERT INTO TB_FILE
			(
				IDX,
				BOARD_IDX,
				ORIGINAL_FILE_NAME,
				STORED_FILE_NAME,
				FILE_SIZE,
				CREA_ID
			)
			VALUES
			(
				SEQ_TB_FILE_IDX.NEXTVAL,
				#{BOARD_IDX},
				#{ORIGINAL_FILE_NAME},
				#{STORED_FILE_NAME},
				#{FILE_SIZE},
				'Admin'
			)
		]]>
	</insert>
	
	<select id="selectFileList" parameterType="hashmap" resultType="hashmap">
		<![CDATA[
			SELECT
				IDX,
				ORIGINAL_FILE_NAME,
				ROUND(FILE_SIZE/1024,1) AS FILE_SIZE
			FROM
				TB_FILE
			WHERE
				BOARD_IDX=#{IDX}
				AND DEL_GB='N'
		]]>
	</select>
	
	<update id="deleteFileList" parameterType="hashmap">
		<![CDATA[
			UPDATE TB_FILE SET
				DEL_GB='Y'
			WHERE
				BOARD_IDX=#{IDX}
		]]>
	</update>
	
	<update id="updateFile" parameterType="hashmap">
		<![CDATA[
			UPDATE TB_FILE SET
				DEL_GB='N'
			WHERE
				IDX=#{FILE_IDX}
		]]>
	</update>
	
	<!-- <![CDATA...요건 혹시모를 쿼리문에 <,> 등의 기호가 들어갈때를 대비하여 씀 -->
</mapper>

package first.sample.dao;

import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Repository;

import first.common.dao.AbstractDAO;

@Repository("sampleDAO") // DAO 컴포넌트 선언
public class SampleDAO extends AbstractDAO
{
	
	@SuppressWarnings("unchecked") // 경고 무시
	public Map<String, Object> selectBoardList(Map<String, Object> map) throws Exception
	{
		// selectPagingList를 사용하여 페이징 처리된 게시물 목록과 페이징 정보를 함께 반환합니다.
		// Controller에서 전달받은 검색 조건(searchType, searchKeyword)을 포함한 Map을 그대로 사용합니다.
		return (Map<String, Object>) selectPagingList("sample.selectBoardList", map);
	}

	public void insertBoard(Map<String, Object> map) throws Exception
	{
		insert("sample.insertBoard", map);
	}
	
	public void insertFile(Map<String, Object> map) throws Exception
	{
		insert("sample.insertFile", map);
	}
	
	@SuppressWarnings("unchecked")
	public Map<String, Object> selectBoardDetail(Map<String, Object> map) throws Exception{
		// 게시글 상세 정보를 조회합니다.
		return (Map<String, Object>) selectOne("sample.selectBoardDetail", map);
	}
	
	@SuppressWarnings("unchecked")
	public List<Map<String, Object>> selectFileList(Map<String, Object> map) throws Exception
	{
		// 첨부 파일 목록을 조회합니다.
		return (List<Map<String, Object>>) selectList("sample.selectFileList", map);
	}
	
	@SuppressWarnings("unchecked")
	public Map<String, Object> boardUpdate(Map<String, Object> map) throws Exception
	{
		// 게시글 수정을 위한 상세 정보를 조회합니다.
		return (Map<String, Object>) selectOne("sample.boardUpdate", map);
	}
	
	public void updateBoard(Map<String, Object> map) throws Exception
	{
		update("sample.updateBoard", map);
	}

	public void deleteBoard(Map<String, Object> map) throws Exception
	{
		delete("sample.deleteBoard", map);
	}

	public void updateHitCnt(Map<String, Object> map)
	{
		// 조회수(HIT_CNT)를 증가시킵니다.
		update("sample.updateHitCnt", map);
	}

	public void deleteFileList(Map<String, Object> map)
	{
		// 파일의 DEL_GB를 'Y'로 업데이트하여 삭제 처리합니다.
		update("sample.deleteFileList", map);
	}

	public void updateFile(Map<String, Object> map)
	{
		// 첨부 파일을 업데이트합니다.
		update("sample.updateFile", map);
	}
	
	public Map<String, Object> selectPrevNextBoard(Map<String, Object> map) throws Exception
	{
		return (Map<String, Object>) selectOne("sample.selectPrevNextBoard", map);
	}
	
}

package first.sample.service;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

public interface SampleService {

	Map<String, Object> selectBoardList(Map<String, Object> map) throws Exception;

	void insertBoard(Map<String, Object> map, HttpServletRequest request) throws Exception;
	
	Map<String, Object> selectBoardDetail(Map<String, Object> map) throws Exception;
	
	Map<String, Object> boardUpdate(Map<String, Object> map) throws Exception;

	void updateBoard(Map<String, Object> map, HttpServletRequest request) throws Exception;

	void deleteBoard(Map<String, Object> map) throws Exception;	

}

package first.sample.service;

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

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import first.common.util.FileUtils;
import first.sample.dao.SampleDAO;

@Service("sampleService")
public class SampleServiceImpl implements SampleService
{
	Logger log = Logger.getLogger(this.getClass());
	
	@Resource(name="fileUtils")
	private FileUtils fileUtils;
	
	@Resource(name="sampleDAO")
	private SampleDAO sampleDAO;

	@Override
	public Map<String, Object> selectBoardList(Map<String, Object> map) throws Exception {
		
		return sampleDAO.selectBoardList(map);
		// Controller에서 넘어온 검색 파라미터가 포함된 Map을 그대로 DAO로 전달합니다.
	}
	
	@Override
	public void insertBoard(Map<String, Object> map, HttpServletRequest request) throws Exception
	{
		sampleDAO.insertBoard(map);
		
		// 파일 정보 파싱 및 DB에 파일 정보 저장
		List<Map<String, Object>> list = fileUtils.parseInsertFileInfo(map, request);
		for(int i=0,size=list.size();i<size;i++)
		{
			sampleDAO.insertFile(list.get(i));
		}
		
		// 로그 출력 (기존 코드 유지)
		MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest)request;
		Iterator<String> iterator = multipartHttpServletRequest.getFileNames();
		MultipartFile multipartFile = null;
		
		while(iterator.hasNext())
		{
			multipartFile = multipartHttpServletRequest.getFile(iterator.next());
			
			if(multipartFile.isEmpty() == false)
			{
				log.debug("--------------file start------------");
				log.debug("name :" + multipartFile.getName());
				log.debug("filename :" + multipartFile.getOriginalFilename());
				log.debug("size :" + multipartFile.getSize());
				log.debug("--------------file end--------------\\n");
			}
		}
	}
	
	@Override
	public Map<String, Object> selectBoardDetail(Map<String, Object> map) throws Exception
	{
		/*
		 * 선처리
		String type = (String) map.get("type");
		if(type==null) {
			//현재값
			
		}else if(type!=null && type.equals("prev")) {
			//이전글
			
		}else if(type!=null && type.equals("next")) {
			//다음글
			
		}
		*/
		// 1. 조회수 증가
		sampleDAO.updateHitCnt(map);
		
		Map<String, Object> resultMap = new HashMap<String, Object>();
		
		// 2. 게시글 상세 내용 조회
		Map<String, Object> tempMap = sampleDAO.selectBoardDetail(map);
		resultMap.put("map", tempMap);
		
		// 3. 첨부 파일 목록 조회
		List<Map<String, Object>> list = sampleDAO.selectFileList(map);
		resultMap.put("list", list);
		//후처리
		Map<String, Object> mapPrevNextBoard = sampleDAO.selectPrevNextBoard(map);
		resultMap.put("prevNextBoard", mapPrevNextBoard);
		
		return resultMap;
	}
	
	@Override
	public Map<String, Object> boardUpdate(Map<String, Object> map) throws Exception
	{
		Map<String, Object> resultMap = new HashMap<String, Object>();
		
		// 게시글 수정 화면에 필요한 상세 정보 조회
		Map<String, Object> tempMap = sampleDAO.boardUpdate(map);
		resultMap.put("map", tempMap);
		
		// 첨부 파일 목록 조회
		List<Map<String, Object>> list = sampleDAO.selectFileList(map);
		resultMap.put("list", list);
		
		return resultMap;
	}
	
	@Override
	public void updateBoard(Map<String, Object> map, HttpServletRequest request) throws Exception
	{
		sampleDAO.updateBoard(map); // 기존 글만 수정 (업데이트)
		
		sampleDAO.deleteFileList(map); // 기존 파일 삭제 처리 (DEL_GB = 'Y'로 업데이트)
		
		// 새로운 파일 정보 파싱 및 업데이트 처리
		List<Map<String, Object>> list = fileUtils.parseInsertFileInfo(map, request);
		Map<String, Object> tempMap = null;
		for(int i=0,size=list.size();i<size;i++)
		{
			tempMap = list.get(i);
			if(tempMap.get("IS_NEW").equals("Y"))
			{
				// 새로 추가된 파일은 INSERT
				sampleDAO.insertFile(tempMap);
			}else{
				// 기존 파일 중 수정되지 않은 파일은 DEL_GB = 'N'으로 업데이트 (활성화)
				sampleDAO.updateFile(tempMap);
			}
		}
	}

	@Override
	public void deleteBoard(Map<String, Object> map) throws Exception {
		
		sampleDAO.deleteBoard(map);
		
	}
}