import?java.io.*;?
import?java.util.logging.Level;?
import?java.util.logging.Logger;?
import?java.awt.*;?
import?com.sun.image.codec.jpeg.*;?
import?java.awt.image.BufferedImage;?
/**?
*?
*?@author?Jiangpin?
*/?
public?class?Img_Middle?{?
????public?void?img_change（String?urlString?name）?
????{?
????????????Tosmallerpic（urlnew?File（url+name）“_middle“name188165（float）0.7）;?
????????????Tosmallerpic（urlnew?File（url+name）“_small“name4545（float）0.7）;?
????????????Tosmallerpic（urlnew?File（url+name）“_smaller“name116100（float）0.7）;?
????}?

???private?static?void?img_change11（String?urlString?name）?
????{?
????????????File??f=new?File（url+name）;
????????????float?per?=（300*1024）/f.length（）;
????????????if（f.length（）>300*1024）{
????????????????per?=（float）（300*1024）/f.length（）;
????????????????per?=（float）（per+（1-per）/5）;
????????????}else{
????????????????
????????????????per=（float）1.0;
????????????}
????????????System.out.println（“圖片大小：“+f.length（）/1024+“K“?）;
????????????System.out.println（“壓宿比例：“+per?）;
????????????//Tosmallerpic（urlnew?File（url+name）“_middle“name1440900（float）0.7）;?
????????????Tosmallerpic（urlnew?File（url+name）“_small“name10241024（float）0.7）;?
????????????Tosmallerpic（urlnew?File（url+name）“_smaller“name1024500（float）0.7）;?
????????????Tosmallerpic（urlnew?File（url+name）“_middle“name1024640（float）per）;?
????}?
/**?
*?
*?@param?f?圖片所在的文件夾路徑?
*?@param?filelist?圖片路徑?
*?@param?ext?擴展名?
*?@param?n?圖片名?
*?@param?w?目標寬?
*?@param?h?目標高?
*?@param?per?百分比?
*/?
??????private?static?void??Tosmallerpic（String?fFile?filelistString?extString?nint?wint?hfloat?per）{?
????????????Image?src;?
????????????try?{?
????????????????src?=?javax.imageio.ImageIO.read（filelist）;?//構(gòu)造Image對象?

???????????????String?img_midname=f+n.substring（0n.indexOf（“.“））+ext+n.substring（n.indexOf（“.“））;?
???????????????int?old_w=src.getWidth（null）;?//得到源圖寬?
???????????????int?old_h=src.getHeight（null）;?
???????????????int?new_w=0;?
???????????????int?new_h=0;?//得到源圖長?

???????????????double?w2=（old_w*1.00）/（w*1.00）;?
???????????????double?h2=（old_h*1.00）/（h*1.00）;?

???????????????//圖片跟據(jù)長寬留白，成一個正方形圖。?
???????????????BufferedImage?oldpic;?
???????????????/*
???????????????if（old_w>old_h）?
???????????????{?
???????????????????oldpic=new?BufferedImage（old_wold_wBufferedImage.TYPE_INT_RGB）;?
???????????????}else{
??????????????????if（old_w?????????????????????oldpic=new?BufferedImage（old_hold_hBufferedImage.TYPE_INT_RGB）;?
??????????????????}else{?
????????????????????oldpic=new?BufferedImage（old_wold_hBufferedImage.TYPE_INT_RGB）;?
?????????????????}?????
???????????????}*/
????????????????oldpic=new?BufferedImage（old_wold_hBufferedImage.TYPE_INT_RGB）;??
????????????????Graphics2D?g?=?oldpic.createGraphics（）;?
????????????????g.setColor（Color.white）;?
????????????????
????????????????if（old_w>old_h）?
????????????????{?
??????????????

?屬性????????????大小?????日期????時間???名稱
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?????文件??????30634??2011-09-24?23:25??java圖片壓縮處理（可以壓縮為任意大小，壓縮后高清，不變形（留白），可以改后綴名，可以修改壓縮分辨率）?-?-?ITeye技術(shù)網(wǎng)站.htm

?????文件???????6141??2011-09-24?23:58??Img_Middle.java

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????????????????36775????????????????????2