조코드

업로드

testMapper.xml

((((디비 테이블에file_name varchar(40)넣기))))

<!--게시글 삽입 -->
	<insert id="insertTest" parameterType="TestVO">
		<![CDATA[
		INSERT INTO test(testTitle, testContent, testName, testDate, fileName)
		VALUES(#{testTitle}, #{testContent}, '밥샵', now(), #{fileName})
		]]>
	</insert>

	<!--게시글 클릭시 detailView -->
	<select id="selectDetail"
		parameterType="egovframework.example.test.domain.TestVO"
		resultType="egovframework.example.test.domain.TestVO">
		<![CDATA[
			SELECT *
			FROM test
			WHERE testId = #{testId}
		]]>
	</select>

	<!--게시글 업데이트 -->
	<update id="updateTest">
		update test set
		testTitle = #{testTitle}
		,testContent = #{testContent}
		,fileName = #{fileName}
		where
		testId = #{testId}
	</update>

pom.xml

<!-- file upload -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>

		<!-- MultipartHttpServletRequset -->
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.6</version>
		</dependency>

dispatcher-servlet.xml

<!-- 파일 업로드 설정 -->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 파일 사이즈 설정 가능 byte 단위
		<property name="maxUploadSize" value="100000" />
		-->
	</bean>

testRegister.jsp

<tr>
	<th>첨부파일:</th>
	<td><input type="file" name="uploadFile"></td>	
</tr>

TestController

package egovframework.example.test.web;

import java.io.File;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.io.FilenameUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import egovframework.example.test.domain.Search;
import egovframework.example.test.domain.TestVO;
import egovframework.example.test.service.TestService;

@Controller
public class TestController {

	@Autowired
	private TestService testServiceImpl;

	// 글 목록 리스트, 페이징, 검색
	@RequestMapping(value = "/testList.do")
	public String testListDo(Model model, @RequestParam(required = false, defaultValue = "1") int page,
			@RequestParam(required = false, defaultValue = "1") int range,
			@RequestParam(required = false, defaultValue = "testTitle") String searchType,
			@RequestParam(required = false) String keyword, @ModelAttribute("search") Search search) throws Exception {

		// 검색
		model.addAttribute("search", search);
		search.setSearchType(searchType);
		search.setKeyword(keyword);

		// 전체 게시글 개수를 얻어와 listCnt에 저장
		int listCnt = testServiceImpl.getBoardListCnt(search);

		// 검색
		search.pageInfo(page, range, listCnt);
		// 페이징
		model.addAttribute("pagination", search);
		// 게시글 화면 출력
		model.addAttribute("list", testServiceImpl.selectTest(search));

		return "test/testList";
	}

	// 글 작성 클릭시 글 작성 페이지로 이동
	@RequestMapping(value = "/testRegister.do")
	public String testRegister() {
		return "test/testRegister";
	}

	// 글 작성 버튼 구현
	@RequestMapping(value = "/insertTest.do")
	public String write(@ModelAttribute("testVO") TestVO testVO, RedirectAttributes rttr) throws Exception {

		// 파일 업로드 처리
		String fileName = null;
		MultipartFile uploadFile = testVO.getUploadFile();
		if (!uploadFile.isEmpty()) {
			String originalFileName = uploadFile.getOriginalFilename();
			String ext = FilenameUtils.getExtension(originalFileName); // 확장자 구하기
			UUID uuid = UUID.randomUUID(); // UUID 구하기
			fileName = uuid + "." + ext;
			uploadFile.transferTo(new File("C:\\upload\\" + fileName));
		}
		testVO.setFileName(fileName);

		testServiceImpl.insertTest(testVO);

		return "redirect:testList.do";
	}

	// HttpServletRequest 객체안에 모든 데이터들이 들어가는데 getParameter메소드로 testId 원하는 데이터 가져옴
	// 제목 클릭 시 상세보기
	@RequestMapping(value = "/testDetail.do")
	public String viewForm(@ModelAttribute("testVO") TestVO testVO, Model model, HttpServletRequest request)
			throws Exception {

		int testId = Integer.parseInt(request.getParameter("testId"));
		testVO.setTestId(testId);

		TestVO resultVO = testServiceImpl.selectDetail(testVO);
		model.addAttribute("result", resultVO);

		return "test/testDetail";
	}

	// 수정하기
	@RequestMapping(value = "/updateTest.do")
	public String updateTest(@ModelAttribute("testVO") TestVO testVO, HttpServletRequest request) throws Exception {
		// 파일 업로드 처리
		String fileName = null;
		MultipartFile uploadFile = testVO.getUploadFile();
		if (!uploadFile.isEmpty()) {
			String originalFileName = uploadFile.getOriginalFilename();
			String ext = FilenameUtils.getExtension(originalFileName); // 확장자 구하기
			UUID uuid = UUID.randomUUID(); // UUID 구하기
			fileName = uuid + "." + ext;
			uploadFile.transferTo(new File("C:\\upload\\" + fileName));
		}
		testVO.setFileName(fileName);
		testServiceImpl.updateTest(testVO);
		return "redirect:testList.do";
	}

	// 삭제하기
	@RequestMapping(value = "/deleteTest.do")
	public String deleteTest(@ModelAttribute("testVO") TestVO testVO) throws Exception {
		testServiceImpl.deleteTest(testVO);
		return "redirect:testList.do";
	}

}

TestVO

	private String fileName;
	private MultipartFile uploadFile;

다운로드

FileDownController.java

package egovframework.example.test.web;

import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

@Controller
public class FileDownController {
     
    @RequestMapping(value = "fileDownload.do")
    public void fileDownload4(HttpServletRequest request,HttpServletResponse response) throws Exception {
        //String path =  request.getSession().getServletContext().getRealPath("저장경로");
        
        String filename =request.getParameter("fileName");
        String realFilename="";
        System.out.println(filename);
         
        try {
            String browser = request.getHeader("User-Agent"); 
            //파일 인코딩 
            if (browser.contains("MSIE") || browser.contains("Trident")
                    || browser.contains("Chrome")) {
                filename = URLEncoder.encode(filename, "UTF-8").replaceAll("\\+",
                        "%20");
            } else {
                filename = new String(filename.getBytes("UTF-8"), "ISO-8859-1");
            }
        } catch (UnsupportedEncodingException ex) {
            System.out.println("UnsupportedEncodingException");
        }
        realFilename = "C:\\upload\\" + filename;
        System.out.println(realFilename);
        File file1 = new File(realFilename);
        if (!file1.exists()) {
            return ;
        }
         
        // 파일명 지정        
        response.setContentType("application/octer-stream");
        response.setHeader("Content-Transfer-Encoding", "binary;");
        response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
        try {
            OutputStream os = response.getOutputStream();
            FileInputStream fis = new FileInputStream(realFilename);
 
            int ncount = 0;
            byte[] bytes = new byte[512];
 
            while ((ncount = fis.read(bytes)) != -1 ) {
                os.write(bytes, 0, ncount);
            }
            fis.close();
            os.close();
        } catch (Exception e) {
            System.out.println("FileNotFoundException : " + e);
        }
    }
}

testDetail.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!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">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet"
	href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
	integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
	crossorigin="anonymous">

<!-- Optional theme -->
<link rel="stylesheet"
	href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
	integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp"
	crossorigin="anonymous">

<!-- Latest compiled and minified JavaScript -->
<script
	src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"
	integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
	crossorigin="anonymous"></script>
<link href="/css/test/test.css" rel="stylesheet" type="text/css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
</head>
<body>
	<div class="container">
		<table class="table table-bordered">
			<thead>
				<h1>글 상세보기 Detail</h1>
			</thead>
			<tbody>
				<form action="updateTest.do" id="viewForm" method="post"
					encType="multipart/form-data">
					<tr>
						<th>글번호:</th>
						<td><input name="testId" type="text" value="${result.testId}"
							class="form-control" readonly /></td>

					</tr>
					<tr>
						<th>제목:</th>
						<td><input type="text" value="${result.testTitle}"
							name="testTitle" class="form-control" /></td>
					</tr>
					<tr>
						<th>내용:</th>
						<td><textarea name="testContent" class="form-control"
								style="height: 200px;">${result.testContent}</textarea></td>

					</tr>
					<tr>
						<c:if test="${result.fileName ne null}">
							<tr>
								<td>다운로드</td>

								<td><a href="fileDownload.do?fileName=${result.fileName}">
										<input type="text" id="asd" value="${result.fileName}"
										name="fileName" class="form-control" readonly />
								</a>
									<button id="asdasd" type="button" class="btn_previous">파일지우기</button>
							</tr>
						</c:if>
					</tr>


					<tr>
						<th>첨부파일:</th>
						<td><input type="file" name="uploadFile"></td>
					</tr>
					<tr>

						<td colspan="2">
							<button id="btn_previous" type="button" class="btn_previous">이전</button>
							<button id="btn_delete" type="button" class="btn_previous">삭제</button>
							<button id="btn_modify" type="button" class="btn_register">수정</button>
					</tr>
				</form>
			</tbody>
		</table>
	</div>


</body>
<script type="text/javascript">
	$(document).on('click', '#btn_modify', function(e) {
		if (confirm("정말 수정하시겠습니까 ?") == true) {
			$("#viewForm").submit();
		} else {
			return;
		}

	});
	$(document).on('click', '#btn_delete', function(e) {
		if (confirm("정말 삭제하시겠습니까 ?") == true) {
			$("#viewForm").attr("action", "deleteTest.do");
			$("#viewForm").submit();
		} else {
			return;
		}

	});

	//이전 클릭 시 testList로 이동
	$("#btn_previous").click(function javascript_onclikc() {

		$(location).attr('href', 'testList.do');

	});
	$("#asdasd").click(function javascript_onclikc() {
		$('#asd').val(null);

	});
</script>
</html>

파일 업로드와 파일 다운로드, 파일 삭제를 구현하였다.

참고블로그

extsdd.tistory.com/category/IT/Spring(spring의 좋은 설명)

gangnam-americano.tistory.com/3

ming9mon.tistory.com/65?category=825118

freehoon.tistory.com/104

haenny.tistory.com/67(egov 게시판 sample예제 삭제)

badstorage.tistory.com/13(게시글 목록 갯수 변경)

lemontia.tistory.com/408?category=993095 (mapper namespace)