thumbnailForm.jsp
<%@ 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>썸네일 이미지 폼</title>
</head>
<body>
<h3>썸네일 이미지 폼</h3>
<form action="thumbnail.jsp" method="post" enctype="multipart/form-data">
이미지 파일: <input type="file" name="filename">
<input type="submit" value="전송">
</form>
</body>
</html>
thumbnail.jsp
<%@page import="javax.imageio.ImageIO"%>
<%@page import="java.io.File"%>
<%@page import="java.awt.Graphics2D"%>
<%@page import="java.awt.image.BufferedImage"%>
<%@page import="javax.media.jai.RenderedOp"%>
<%@page import="java.awt.image.renderable.ParameterBlock"%>
<%@page import="javax.media.jai.JAI"%>
<%@page import="java.util.Enumeration"%>
<%@page import="com.oreilly.servlet.multipart.DefaultFileRenamePolicy"%>
<%@page import="com.oreilly.servlet.MultipartRequest"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String imagePath = application.getRealPath("/image");
int size = 1024*1024*5;
MultipartRequest multi
= new MultipartRequest(request,
imagePath,
size,
"utf-8",
new DefaultFileRenamePolicy());
Enumeration enu = multi.getFileNames();
// while (enu.hasMoreElements()) {
// String filename = enu.nextElement();
// }
String file = (String) enu.nextElement(); // file타입 input태그의 name속성값들을 하나씩 가져옴
String filename = multi.getFilesystemName(file);
ParameterBlock pb = new ParameterBlock();
pb.add(imagePath + "/" + filename);
RenderedOp rOp = JAI.create("fileload", pb);
BufferedImage bi = rOp.getAsBufferedImage();//원본
BufferedImage thumb = new BufferedImage(100,100,BufferedImage.TYPE_INT_RGB);
Graphics2D g = thumb.createGraphics();
g.drawImage(bi, 0, 0, 100, 100, null);
File thumbnailFile = new File(imagePath, "sm_"+filename);
ImageIO.write(thumb, "jpg", thumbnailFile);
%>
<!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>
-원본이미지-<br>
<img src="../image/<%=filename %>"><br><br>
-썸네일 이미지<br>
<img src="../image/sm_<%=filename %>"><br>
</body>
</html>
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