1. File Upload / Download FORM SUBMIT A Controller Service Dao AJAX
B Controller
NAS DB

2. File Upload / Download ㅇ 필요 라이브러리 - commons-fileupload.jar
- commons-io.jar
- jquery.form.js
ㅇ DB Table

3. File Upload / Download
ㅇ 프로젝트 전체 구조
ㅇ Package 구조

4. dispatcher-servlet.xml (1 / 3)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="
xmlns:xsi="
xmlns:util="
xmlns:context="
xsi:schemaLocation="
<context:component-scan base-package="mvc.spring" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>

5. dispatcher-servlet.xml (2 / 3)
<!-- MessageConverter -->
<bean class="org.springframework.web.servlet.mvc.annotation.
AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.
StringHttpMessageConverter" />
<bean class="org.springframework.http.converter.json.
MappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>
<!-- Multipart Resolver -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.
CommonsMultipartResolver">
<!-- maximum file size in bytes 50MB -->
<property name="maxUploadSize" value=" " />

6. dispatcher-servlet.xml (3 / 3)
<!-- Properties -->
<util:properties id="config"
location="/WEB-INF/config.properties" />
<!-- Data Source -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="#{config['db.driver']}" />
<property name="url" value="#{config['db.url']}" />
<property name="username" value="#{config['db.id']}" />
<property name="password" value="#{config['db.pw']}" />
</bean>
<!-- Jdbc Template -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<constructor-arg ref="dataSource" />
</beans>

7. config.properties /WEB-INF db.driver=oracle.jdbc.driver.OracleDriver
db.id=scott
db.pw=tiger

8. FileController(1 / 3) Package : mvc/spring/controller @Controller
public class FileController {
@Autowired
FileService fileService;
/* submit file upload form */
@RequestMapping(value="fileUpload.do", method=RequestMethod.GET)
public ModelAndView fileUploadForm() {
ModelAndView mav = new ModelAndView();
mav.setViewName("file/fileUpload_submit");
return mav; }
/* submit file upload */
@RequestMapping(value="fileUpload.do", method=RequestMethod.POST)
public ModelAndView fileUpload(MultipartRequest mRequest) {
boolean result = fileService.uploadFile(mRequest);
mav.addObject("result", result);
mav.setViewName("file/fileUpload_result");

9. FileController(2 / 3) Package : mvc/spring/controller
/* ajax file upload form */
@RequestMapping(value="fileUploadAjax.do", method=RequestMethod.GET)
public ModelAndView fileUploadAjaxForm() {
ModelAndView mav = new ModelAndView();
View view = new InternalResourceView(
“/WEB-INF/views/file/fileUpload_ajax.jsp");
mav.setView(view);
return mav; }
/* ajax file upload */
@RequestMapping(value="fileUploadAjax.do", method=RequestMethod.POST)
@ResponseBody
public Map<String, Object> fileUploadAjax(MultipartRequest mRequest) {
boolean result = fileService.uploadFile(mRequest);
Map<String, Object> map = new HashMap<String, Object>();
map.put("result", result);
return map;

10. FileController(3 / 3) Package : mvc/spring/controller
/* file download */
@RequestMapping("fileDownload.do")
public ModelAndView String seqNo,
@RequestParam("num") String num) {
ModelAndView mav = new ModelAndView();
Map<String, Object> map = new HashMap<String, Object>();
map.put("seqNo", seqNo);
map.put("num", num);
List<Map<String, Object>> list = fileService.getFileList(map);
Map<String, Object> data = new HashMap<String, Object>();
String fileName = (String) list.get(0).get("DSP_FILE_NAME");
String filePath = list.get(0).get("FILE_PATH") + File.separator +
list.get(0).get("FILE_NAME");
File file = new File(filePath);
data.put("file", file);
data.put("fileName", fileName);
mav.addObject("data", data);
mav.setView(new FileDownloadView());
return mav; }

11. FileService Package : mvc/spring/service
public interface FileService {
public boolean uploadFile(MultipartRequest mRequest);
public List<Map<String, Object>> getFileList(Map<String, Object> map); }

12. FileServiceImpl (1 / 4) Package : mvc/spring/service @Service
public class FileServiceImpl implements FileService {
@Autowired
FileAtchDao fileAtchDao;
@Override
public boolean uploadFile(MultipartRequest mRequest) {
boolean isSuccess = false;
String uploadPath = "/spring/upload";
File dir = new File(uploadPath);
if(!dir.isDirectory()) {
dir.mkdirs(); }

13. FileServiceImpl (2 / 4) Package : mvc/spring/service
Iterator<String> iter = mRequest.getFileNames();
while(iter.hasNext()) {
// HTML input tag name
String htmlName = iter.next();
// Multipart File
MultipartFile mFile = mRequest.getFile(htmlName);
// Original File name
String oFileName = mFile.getOriginalFilename();
// Save File name
String saveFileName = oFileName;
// Save File size
long fileSize = mFile.getSize();
String realFilePath = uploadPath + File.separator + saveFileName;
if(!saveFileName.equals("") && new File(realFilePath).exists()) {
saveFileName = saveFileName + "_" + System.currentTimeMillis();
realFilePath = uploadPath + File.separator + saveFileName; }

14. FileServiceImpl (3 / 4) Package : mvc/spring/service try {
Map<String, Object> map = new HashMap<String, Object>();
map.put("seqNo", 1);
map.put("filePath", uploadPath);
map.put("fileName", saveFileName);
map.put("dspFileName", oFileName);
map.put("fileSize", fileSize);
fileAtchDao.insertFileAtch(map);
mFile.transferTo(new File(realFilePath));
isSuccess = true;
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) { }
return isSuccess;

15. FileServiceImpl (4 / 4) Package : mvc/spring/service @Override
public List<Map<String, Object>> getFileList(Map<String, Object> map) {
List<Map<String, Object>> list = fileAtchDao.selectFileAtch(map);
return list; }

16. FileAtchDao Package : mvc/spring/dao public interface FileAtchDao {
public boolean insertFileAtch(Map<String, Object> map);
public List<Map<String, Object>> selectFileAtch(Map<String, Object> map); }

17. FileAtchDaoImpl (1 / 2) Package : mvc/spring/dao @Repository
public class FileAtchDaoImpl implements FileAtchDao {
@Autowired
JdbcTemplate template;
@Override
public boolean insertFileAtch(Map<String, Object> map) {
StringBuffer sql = new StringBuffer();
sql.append("INSERT INTO FILE_ATCH");
sql.append(" (NUM, SEQ_NO, FILE_PATH, FILE_NAME, DSP_FILE_NAME,
FILE_SIZE)");
sql.append(" VALUES ");
sql.append(" ((SELECT NVL(MAX(TO_NUMBER(NUM)), 0) + 1 FROM
FILE_ATCH), ?, ?, ?, ?, ?) ");
int result = template.update(sql.toString(), map.get("seqNo"),
map.get("filePath"), map.get("fileName"),
map.get("dspFileName"), map.get("fileSize"));
return result > 0 ? true : false; }

18. FileAtchDaoImpl (2 / 2) Package : mvc/spring/dao @Override
public List<Map<String, Object>> selectFileAtch(Map<String, Object> map) {
StringBuffer sql = new StringBuffer();
sql.append("SELECT NUM, SEQ_NO, FILE_PATH");
sql.append(" , FILE_NAME, DSP_FILE_NAME, FILE_SIZE");
sql.append(" FROM FILE_ATCH");
sql.append(" WHERE NUM = ? AND SEQ_NO = ?");
List<Map<String, Object>> list =
template.queryForList(sql.toString(), map.get("num"),
map.get("seqNo"));
return list; }

19. fileUpload_submit.jsp /WEB-INF/views/file
page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>파일 업로드 화면</title>
</head>
<body>
<form action="./fileUpload.do" method="post" enctype="multipart/form-data">
파일첨부 1 : <input type="file" name="file1" />
<br />
파일첨부 2 : <input type="file" name="file2" />
파일첨부 3 : <input type="file" name="file3" />
<input type="submit" value="upload" />
</form>
</body>
</html>

20. fileUpload_ajax.jsp (1 / 2)
/WEB-INF/views/file
page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>파일 업로드 화면</title>
<script src="
<script src="./js/jquery.form.js"></script>
<script>
$(document).ready(function() {
$("input[type=submit]").bind("click", function() {
$("form").ajaxSubmit({
success : function(data) {
alert(data.result); },
error : function(error) {
alert("요청 처리 중 오류가 발생하였습니다."); }
});
return false;
</script>
</head>

21. fileUpload_ajax.jsp (2 / 2)
/WEB-INF/views/file
<body>
<form action="./fileUploadAjax.do" method="post" enctype="multipart/form-data">
파일첨부 1 : <input type="file" name="file1" />
<br />
파일첨부 2 : <input type="file" name="file2" />
파일첨부 3 : <input type="file" name="file3" />
<input type="submit" value="upload" />
</form>
</body>
</html>

22. fileUpload_result.jsp /WEB-INF/views/file
page language="java" contentType="text/html; charset=UTF-8“ pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>파일 업로드 결과</title>
</head>
<body>
<h1>${result}</h1>
</body>
</html>

23. FileDownloadView Package : mvc/spring/view
public class FileDownloadView extends AbstractView {
@Override
protected void renderMergedOutputModel(Map<String, Object> model,
HttpServletRequest request, HttpServletResponse response) throws Exception {
Map<String, Object> data = (Map<String, Object>) model.get("data");
File file = (File) data.get("file");
String oFileName = (String) data.get("fileName");
response.setContentType(this.getContentType());
response.setContentLength((int)file.length());
response.setHeader("Content-Disposition", "attachment; filename=\"" +
java.net.URLEncoder.encode(oFileName, "UTF-8") +
"\";charset=\"UTF-8\"");
response.setHeader("Content-Transfer-Encoding", "binary");
response.setHeader("Pragma", "no-cache");
OutputStream out = response.getOutputStream();
FileInputStream in = null;
in = new FileInputStream(file);
FileCopyUtils.copy(in, out);
out.close();
out.flush(); }