FileUpload api 추가하기 및 실습

package springmvc.fileup.ctr;

import java.io.File;
import java.util.HashMap;
import java.util.Iterator;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;

import springmvc.fileup.dto.SingleUpDTO;

@Controller
public class FileUploadController {
private String uploadDirectory;//upload된 파일을 저장할 디렉토리
public FileUploadController(String uploadDirectory) {//최종 저장소가 안바뀐다는 가정하에 생성자에서 주입 받음
  super();
  this.uploadDirectory = uploadDirectory;
}
//파일을 받는 변수 앞에는 @RequestParam을 붙여준다.
@RequestMapping("/singleUp.do")
public ModelAndView singleUp(String comment,@RequestParam MultipartFile upfile)throws Exception{
  boolean b = upfile.isEmpty();//false이면 업도드된 파일이 있다.
  HashMap map = new HashMap();
  if(upfile!=null && !b){
   System.out.println("-----------업로드된 파일 정보------------");
   String fileName = upfile.getOriginalFilename();
   long fileSize = upfile.getSize();
   System.out.println("파일명 : "+fileName+", 크기 : "+fileSize);
   //파일 이동(임시저장소 upfile의 정보를 영구적 저장소 uploadDirectory로 보내준다)
   upfile.transferTo(new File(uploadDirectory,fileName));
   map.put("fileName", fileName);

  }
  System.out.println("코멘트 : "+comment);
  map.put("comment", comment);
  return new ModelAndView("single_res", map);

}
@RequestMapping("/singleUpDTO.do")
public ModelAndView singleUpDTO(SingleUpDTO sto)throws Exception{
  MultipartFile upfile = sto.getUpfile();
  String comment = sto.getComment();
  if(!upfile.isEmpty()){
   System.out.println("파일명 : "+upfile.getOriginalFilename());
   System.out.println("파일크기 : "+upfile.getSize());
   //파일이동
   upfile.transferTo(new File(uploadDirectory,upfile.getOriginalFilename()));
  }
  System.out.println("comment : "+comment);
  return new ModelAndView("single_res","sto",sto);
}
@RequestMapping("/singleUpReq.do")
public ModelAndView singleUpReq(MultipartHttpServletRequest request)throws Exception{
  System.out.println("---------getFileNames() : 요청파라미터의 이름들 리턴 - type이 file인---------");
  Iterator<String> itr = request.getFileNames();
  while(itr.hasNext()){
   System.out.println(itr.next());
  }
  System.out.println("---------getParameter(), getParameterValues()");
  System.out.println("코멘트 : "+request.getParameter("comment"));
  System.out.println("--------getFile() : 업로드 파일정보 조회");
  MultipartFile upfile = request.getFile("upfile");
  if(!upfile.isEmpty()){
  System.out.println("파일명 : "+upfile.getOriginalFilename());
  upfile.transferTo(new File(uploadDirectory, upfile.getOriginalFilename()));
  }
  SingleUpDTO sto = new SingleUpDTO();
  sto.setComment(request.getParameter("comment"));
  sto.setUpfile(upfile);
  return new ModelAndView("single_res","sto2",sto);
}

}

package springmvc.fileup.dto;

import org.springframework.web.multipart.MultipartFile;

public class SingleUpDTO {
private String comment;
private MultipartFile upfile;//업로드된 파일 정보를 저장할 변수
public String getComment() {
  return comment;
}
public void setComment(String comment) {
  this.comment = comment;
}
public MultipartFile getUpfile() {
  return upfile;
}
public void setUpfile(MultipartFile upfile) {
  this.upfile = upfile;
}

}

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>
</head>
<body>
업로드된 파일<br>
Comment : ${requestScope.comment }<br>
파일 : ${requestScope.fileName }
<hr>
singleUpDTO.do 응답처리<br>
Comment : ${requestScope.sto.comment }<br>
파일 : ${requestScope.sto.upfile.originalFilename }
<hr>
singleUpReq.do 응답처리<br>
Comment : ${requestScope.sto2.comment }<br>
파일 : ${requestScope.sto2.upfile.originalFilename }
</body>
</html>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean name="vr" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/res/"/>
<property name="suffix" value=".jsp"/>
</bean>

<bean name="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8"/>

</bean>

<bean name="fileUploadController" class="springmvc.fileup.ctr.FileUploadController">
<constructor-arg value="D:\apache-tomcat-6.0.35\webapps\SpringMVC_04_fileUpload\upload"/>
</bean>
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

<servlet>
  <servlet-name>dispatcher</servlet-name>
  <servlet-class>
   org.springframework.web.servlet.DispatcherServlet
  </servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>
  <servlet-mapping>
   <servlet-name>dispatcher</servlet-name>
   <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  
  <filter>
   <filter-name>encodingFilter</filter-name>
   <filter-class>
    org.springframework.web.filter.CharacterEncodingFilter
   </filter-class>
   <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
   </init-param>
  </filter>
  <filter-mapping>
   <filter-name>encodingFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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>
</head>
<body>
파일 업로드 요청<br>
<form action="singleUp.do" method="post" enctype="multipart/form-data">
comment : <input type="text" name="comment"><br>
파일 : <input type="file" name="upfile"><br>
<input type="submit" value="전송">
</form>
<hr>
DTO 이용
<form action="singleUpDTO.do" method="post" enctype="multipart/form-data">
comment : <input type="text" name="comment"><br>
파일 : <input type="file" name="upfile"><br>
<input type="submit" value="전송">
</form>
<hr>
Request 이용<br>
<form action="singleUpReq.do" method="post" enctype="multipart/form-data">
comment : <input type="text" name="comment"><br>
파일 : <input type="file" name="upfile"><br>
<input type="submit" value="전송">
</form>
</body>
</html>

티스토리

FileUpload api 추가하기 및 실습 - SpringMVC이용

FileUpload api 추가하기 및 실습 - SpringMVC이용