스트럿츠 2는 서버에 파일 업로드하기 위해서는 이 기능을 지원하는 IO 컴퍼넌트 ,
FileUpload 컴퍼넌트의 2가지 라이브러리가 필요하다.
commons-fileupload-1.2.1.jar※Struts 2의 기본 설정 파일에서는 업로드 파일 크기를 2MB로 제한하고 있다.
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.i18n.encoding" value="UTF-8" />
<constant name="struts.devMode" value="true" />
<package name="hi" extends="struts-default"
namespace="/" >
<action name="FileUploadForm" class="file.FileUploadAction">
<result>/jsp/fileUpload.jsp</result>
</action>
<action name="FileUploadAction" class="file.FileUploadAction">
<result name="input">/jsp/fileUpload.jsp</result>
<result>/jsp/fileUploadOK.jsp</result>
</action>
<action name="FileList" class="file.FileListAction">
<result>/jsp/fileDownload.jsp</result>
</action>
<action name="FileDownload" class="file.FileDownloadAction">
<result type="stream">
<param name="contentType">binary/octet-stream</param>
<param name="contentLength">${contentLength}</param>
<param name="contentDisposition">${contentDisposition}</param>
<param name="inputName">inputStream</param>
<param name="bufferSize">4096</param>
</result>
</action>
</package>
</struts>
struts.propertiesstruts.i18n.encoding=UTF-8 struts.multipart.maxSize=2097152 struts.devMode = true
<%@ page language="java" contentType="text/html; charset=UTF-8" %> <%@ taglib prefix="s" uri="/struts-tags" %> <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>파일 업로드</title> </head> <body> <h2>파일 업로드 입력 폼</h2> <s:form action="FileUploadAction" method="POST" enctype="multipart/form-data"> <s:file name="upload" label="File" size="50"/> <s:submit /> </s:form> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>파일 업로드</title>
</head>
<body>
<h2>파일 업로드 입력 완료</h2>
<p>
<ul>
<li>ContentType: <s:property value="uploadContentType" /> / ${uploadContentType}</li>
<li>FileName: <s:property value="uploadFileName" /></li>
<li>File: <s:property value="upload" /></li>
</ul>
</p>
</body>
</html>
jsp/fileDownload.jsp<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>파일 다운 로드</title>
</head>
<body>
<h4>다운로드 목록</h4><hr>
다운로드 디렉토리 : <s:property value="BasePath"/>
<ul>
<s:iterator value="listFile" status="stat">
<s:url id="download" action="FileDownload">
<s:param name="basePath" value="basePath" />
<s:param name="fileName"><s:property value="listFile[#stat.index].name" /></s:param>
</s:url>
<li><s:a href="%{download}"><s:property value="listFile[#stat.index].name" /></s:a><br/></li>
</s:iterator>
</ul>
<br/>
* 파일 이름을 클릭하면 파일이 다운로드됩니다.
</body>
</html>
package file;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
public class FileListAction extends ActionSupport {
private static final String BasePath = "C:/upload/";
private List<File> listFile = new ArrayList<File>();
private String basePath;
public String execute() throws Exception {
basePath = BasePath;
File dir = new File(basePath);
File[] files = dir.listFiles();
if (null != files) {
for (File f: files) {
if (f.isFile()) {
listFile.add(f);
}
}
}
return SUCCESS;
}
public List getListFile() {
return listFile;
}
public void setListFile(List<File> listFile) {
this.listFile = listFile;
}
public String getBasePath() {
return basePath;
}
public void setBasePath(String basePath) {
this.basePath = basePath;
}
}
package file;
import java.io.File;
import org.apache.commons.io.FileUtils;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.util.profiling.UtilTimerStack;
public class FileUploadAction extends ActionSupport {
private static final String UploadPath = "C:/upload/";
// 스트럿츠2 파일 업로드의 특징 : intercepter가 파일 객체의 3가지 정보를 셋팅합니다.
private File upload; // <s:file name="upload" 파라미터
private String uploadContentType;
private String uploadFileName;
File saveFile;
@Override
public String execute() throws Exception {
//프로파일링 셋팅하자
UtilTimerStack.setActive(true);
if(upload != null && upload.exists()){
saveFile=new File(UploadPath+uploadFileName);
FileUtils.copyFile(upload, saveFile); //왼쪽 것을 오른쪽으로 복사한다.
}
return SUCCESS;
}
public File getUpload() {
return upload;
}
public void setUpload(File upload) {
this.upload = upload;
}
public String getUploadContentType() {
return uploadContentType;
}
public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}
public String getUploadFileName() {
return uploadFileName;
}
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
}
package file;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URLEncoder;
import com.opensymphony.xwork2.ActionSupport;
public class FileDownloadAction extends ActionSupport {
private String basePath;
private String fileName; //파일의 이름
private String contentType; //스트림 타입
private String contentDisposition; //스트림의 원래 이름
private InputStream inputStream; //스트림 데이터
private long contentLength; //스트림의 크기
public String execute() throws Exception {
//inputPath
String inputPath = basePath + "/" + fileName;
//contentLength
File f = new File(inputPath);
setContentLength(f.length());
//contentDisposition
setContentDisposition("attachment; filename=" + URLEncoder.encode(fileName, "UTF-8"));
//inputStream
setInputStream(new FileInputStream(inputPath));
return SUCCESS;
}
public String getBasePath() {
return basePath;
}
public void setBasePath(String basePath) {
this.basePath = basePath;
}
public String getContentDisposition() {
return contentDisposition;
}
public void setContentDisposition(String contentDisposition) {
this.contentDisposition = contentDisposition;
}
public long getContentLength() {
return contentLength;
}
public void setContentLength(long contentLength) {
this.contentLength = contentLength;
}
public String getContentType() {
return contentType;
}
public void setContentType(String contentType) {
this.contentType = contentType;
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
public InputStream getInputStream() {
return inputStream;
}
public void setInputStream(InputStream inputStream) {
this.inputStream = inputStream;
}
}
다중 파일 업로드
package file;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.FileUtils;
import com.opensymphony.xwork2.ActionSupport;
public class MultiUploadListAction extends ActionSupport {
private static final String UploadPath = "C:/upload/";
private List<File> uploads = new ArrayList<File>();
private List<String> uploadsFileName = new ArrayList<String>();
private List<String> uploadsContentType = new ArrayList<String>();
File saveFile;
@Override
public String execute() throws Exception {
for (int i = 0; i < uploads.size(); i++) {
File destFile = new File(UploadPath
+ getUploadsFileName().get(i));
FileUtils.copyFile(getUploads().get(i), destFile);
}
return SUCCESS;
}
public List<File> getUploads() {
return uploads;
}
public void setUploads(List<File> uploads) {
this.uploads = uploads;
}
public List<String> getUploadsFileName() {
return uploadsFileName;
}
public void setUploadsFileName(List<String> uploadsFileName) {
this.uploadsFileName = uploadsFileName;
}
public List<String> getUploadsContentType() {
return uploadsContentType;
}
public void setUploadsContentType(List<String> uploadsContentType) {
this.uploadsContentType = uploadsContentType;
}
public File getSaveFile() {
return saveFile;
}
public void setSaveFile(File saveFile) {
this.saveFile = saveFile;
}
public static String getUploadPath() {
return UploadPath;
}
}
<action name="MultiUploadListForm">
<result>/jsp/multiUploadList.jsp</result>
</action>
<action name="MultiUploadListAction" class="file.MultiUploadListAction">
<result>/jsp/multiUploadListOK.jsp</result>
</action>
multiUploadList.jsp<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>파일 업로드</title>
</head>
<body>
<h2>다중파일 업로드 입력 폼 (리스트)</h2>
<s:form action="MultiUploadListAction" method="POST"
enctype="multipart/form-data">
<s:file label="File (1)" name="uploads" size="50"/>
<s:file label="File (2)" name="uploads" size="50"/>
<s:file label="FIle (3)" name="uploads" size="50"/>
<s:submit />
</s:form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>파일 업로드</title>
</head>
<body>
<h2> 리스트를 이용한 다중 파일 업로드 입력 완료 화면 </h2>
<s:iterator value="uploads" status="stat">
File ( <s:property value="%{#stat.index + 1}" /> ) <br/>
컨텐츠 타입 :
<s:property value="%{uploadsContentType[#stat.index]}" /> <br/>
파일 이름 :
<s:property value="%{uploadsFileName[#stat.index]}" /> <br/>
임시 파일 이름 :
<s:property value="%{uploads[#stat.index]}" /> <br/>
<hr/>
</s:iterator>
</body>
</html>
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