java 썸네일 만들기

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

public class CommonUtil {
 public CommonUtil(){
 }
 
 /**
  * 썸네일 만들기
  * @param width
  * @param height
  * @param loadFile
  * @param saveFile
  * @param zoom
  * @throws IOException
  */
 public static void createThumbnail(int width, int height, String loadFile, String saveFile, int zoom) throws IOException{
  File save = new File(saveFile.replaceAll("/", "\\"+File.separator));
  FileInputStream fis = new FileInputStream(loadFile.replaceAll("/", "\\"+File.separator));
  BufferedImage im = ImageIO.read(fis);
  
  if (zoom<=0) zoom = 1;
  
  BufferedImage thumb = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
  Graphics2D g2 = thumb.createGraphics();
  
  g2.drawImage(im, 0, 0, width, height, null);
  ImageIO.write(thumb, "jpg", save);
 }
 
 
 /**
  * 썸네일 삭제
  * @param thumbnail_path
  */
 public static void deleteThumbnail(String thumbnail_path){
  File file = new File(thumbnail_path);
  if(file.exists()){
   file.delete();
  }
 }
 
 public static void main(String args[]){
  String loadFile = "http://localhost:8080/2010/07/15/LZHABUhgGy1279183572640.JPG";
  String saveFile = "D://dev/test.jpg";
  int zoom = 5;
  
  try {
   CommonUtil.createThumbnail(124, 144, loadFile, saveFile, zoom);
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
}

 

출처 : http://pskppoppo.egloos.com/2994706