package qflag.ucstar.plugin.ucmbfriends.utils;import java.awt.Image;import java.awt.image.BufferedImage;import java.io.File;import java.io.FileOutputStream;import javax.imageio.ImageIO;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGImageEncoder;public class UcmImagechangetest {	public static void main(String[] args) throws Exception {		FileOutputStream fileOutputStream = null;		JPEGImageEncoder encoder = null;		BufferedImage tagImage = null;		Image srcImage = null;		String dstImageFileName = "E:\\sss\\sgseg.jpeg";		File imBig = new File("C:\\Users\\gzkui\\Desktop\\0019d18398280c9fb6020a.jpg");		if (imBig.exists() && imBig.isFile()) {			srcImage = ImageIO.read(imBig);			int srcWidth = srcImage.getWidth(null);// 原图片宽度			int srcHeight = srcImage.getHeight(null);// 原图片高度			int dstMaxSize = 120;// 目标缩略图的最大宽度/高度，宽度与高度将按比例缩写			int dstWidth = srcWidth;// 缩略图宽度			int dstHeight = srcHeight;// 缩略图高度			float scale = 0;			 if(srcWidth>dstMaxSize){	                dstWidth = dstMaxSize;	                scale = (float)srcWidth/(float)dstMaxSize;	                dstHeight = Math.round((float)srcHeight/scale);	            }	            srcHeight = dstHeight;	            if(srcHeight>dstMaxSize){	                dstHeight = dstMaxSize;	                scale = (float)srcHeight/(float)dstMaxSize;	                dstWidth = Math.round((float)dstWidth/scale);	            }	            //生成缩略图	            tagImage = new BufferedImage(dstWidth,dstHeight,BufferedImage.TYPE_INT_RGB);	            tagImage.getGraphics().drawImage(srcImage,0,0,dstWidth,dstHeight,null);	            fileOutputStream = new FileOutputStream(dstImageFileName);	            encoder = JPEGCodec.createJPEGEncoder(fileOutputStream);	            encoder.encode(tagImage);	            fileOutputStream.close();	            fileOutputStream = null;	            if(fileOutputStream!=null){	                try{	                    fileOutputStream.close();	                }catch(Exception e){	                }	                fileOutputStream = null;	            }	            encoder = null;	            tagImage = null;	            srcImage = null;	            System.gc();			return;		}		System.out.println("文件未找到");	}}