Spring[MultipartResolver]
1. 설정
spring-servlet.xml 에 CommonMultipartResolver 설정을 해준다.
<!-- 멀티파트 리졸버 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 최대업로드 가능한 바이트크기 -->
<property name="maxUploadSize" value="52428800" />
<!-- 디스크에 임시 파일을 생성하기 전에 메모리에 보관할수있는 최대 바이트 크기 -->
<!-- property name="maxInMemorySize" value="52428800" /-->
<!-- defaultEncoding -->
<property name="defaultEncoding" value="utf-8" />
</bean>pom.xml 에 common-fileupload, common-io 라이브러리 dependency를 추가
<!-- common fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>1.4</version>
</dependency>
2. [실습] 업로드 폼 구성 (views/fileupload/form.jsp)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link href="${pageContext.request.contextPath }/assets/css/guestbook.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="container">
<div id="header">
<c:import url="/WEB-INF/views/include/header.jsp"/>
</div>
<div id="content">
<div style="margin:50px auto; width:500px; ">
<h1 style="margin-bottom:20px">파일 업로드 예제</h1>
<form method="post" action="" enctype="multipart/form-data">
<label>email:</label>
<input type="text" name="email" value="kickscar@gmail.com">
<br><br>
<label>파일1:</label>
<input type="file" name="file1">
<br><br>
<label>파일2:</label>
<input type="file" name="file2">
<br><br>
<br>
<input type="submit" value="upload">
</form>
</div>
</div>
<div id="navigation">
<c:import url="/WEB-INF/views/include/navigation.jsp"/>
</div>
<div id="footer">
<p>(c)opyright 2014 </p>
</div>
</div>
</body>
</html>3. [실습] 업로드 결과 페이지 (views/fileupload/result.jsp)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link href="${pageContext.request.contextPath }/assets/css/guestbook.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="container">
<div id="header">
<c:import url="/WEB-INF/views/include/header.jsp"/>
</div>
<div id="content">
<div style="margin:50px auto; width:500px;">
<h1 style="margin-bottom:20px">Upload completed</h1>
<div class="result-images">
<img src="${pageContext.request.contextPath }/${urlImage }" style="width:150px"><br>
</div>
<p>
<a href='${pageContext.request.contextPath }/fileupload/form'> 다시 업로드 하기 </a>
</p>
</div>
</div>
<div id="navigation">
<c:import url="/WEB-INF/views/include/navigation.jsp"/>
</div>
<div id="footer">
<p>(c)opyright 2014 </p>
</div>
</div>
</body>
</html>4. FileUploadController 작성
@Controller
@RequestMapping( "/fileupload" )
public class FileUploadController {
@Autowired
private FileUploadService fileUploadService;
@RequestMapping( "/form" )
public String form(){
return "fileupload/form";
}
@RequestMapping( "/upload" )
public String upload( @RequestParam String email, @RequestParam( "file1" ) MultipartFile file1, Model model ){
String saveFileName = fileUploadService.restore( file1 );
String url = "/upload-images/" + saveFileName;
model.addAttribute( "urlImage", url );
return "fileupload/result";
}
}5. FileUploadService 구현하기
@Service
public class FileUploadService {
public String restore( MultipartFile file ) {
return null;
}
}6. url 과 resource 매핑 하기
<!-- the mvc resources tag does the magic -->
<mvc:resources mapping="/upload-images/**" location="file:/upload/" />spring-servlet.xml 에 설정한다.
요청 URL의 리소스 위치를 실제 물리적인 위치와 매핑한다.
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