javaÎļþ±ÈÀýËõС·Å´ó
1Ê×ÏÈÌí¼ÓÐÞ¸ÄͼƬ¿í¶ÈºÍ¸ß¶ÈµÄ·½·¨
public static void reduceImg(String imgsrc, int widthdist, int heightdist) {
try {
File srcfile = new File(imgsrc);
if (!srcfile.exists()) {
return;
}
// ÔØÈëͼƬÎļþ
Image src = javax.imageio.ImageIO.read(srcfile);
int w0 = src.getWidth(null); // µÃµ½Ô´Í¼¿í
int h0 = src.getHeight(null); // µÃµ½Ô´Í¼³¤
BufferedImage tag = new BufferedImage((int) widthdist,
(int) heightdist, BufferedImage.TYPE_INT_RGB);
// ±£´æÎļþ
// »æÖÆËõСºóµÄͼ
tag.getGraphics().drawImage(
src.getScaledInstance(widthdist, heightdist,
java.awt.Image.SCALE_SMOOTH), 0, 0, null);
// tag.getGraphics().drawImage(src.getScaledInstance(widthdist,
// heightdist, Image.SCALE_AREA_AVERAGING), 0, 0, null);
// ±êעˮӡ
// int x = widthdist/10*8; //ˮӡλÖÃ(x,y)
// int y = heightdist/10*8;
// jpg_logo( tag , x , y );
// ÖØÃüÃû²¢Ð½¨Í¼Æ¬
String oleName = imgsrc.substring(imgsrc.lastIndexOf(".") - 1,
imgsrc.lastIndexOf("."));
String newName = oleName + "v";
String imgdist = imgsrc.replace(oleName, newName);
// Êä³öµ½ÎļþÁ÷
FileOutputStream out = new FileOutputStream(imgdist);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
// ½üJPEG±àÂë
encoder.encode(tag);
out.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
2°´±ÈÀýÈ¥ËõСͼƬ
Ïà¹ØÎĵµ£º
JavaÐéÄâ»úµÄÆðÔ´Óë¹¹Ôì
µ±ÎÒÃÇ˵µ½“Java”Õâ¸ö´ÊµÄʱºò£¬Ö¸µÄÊÇËĸöÏ໥¹ØÁªµÄ¸ÅÄJavaÓïÑÔ¡¢Java API¡¢Java ClassÎļþ¸ñʽ¡¢JavaÐéÄâ»ú¡£Õû¸öJavaÌåϵÊÇ»ùÓÚJava ÐéÄâ»ú¹¹ÔìµÄ£¬ÕýÒòΪÈç´Ë£¬²ÅÄÜʵÏÖJavaµÄ°²È«ÐÔºÍÍøÂçÒÆ¶¯ÐÔ¡£Java²¢·ÇÊǵÚÒ»¸ö²ÉÓÓÐéÄâ»ú”¸ÅÄîµÄÌåϵ£¬µ«È´ÊǵÚÒ»¸öµÃµ½¹ã·ºÔ ......
MD5Ëã·¨ÊÇÒ»Öַdz£ÓÅÐãµÄ¼ÓÃÜËã·¨¡£
MD5¼ÓÃÜËã·¨ÌØµã£ºÁé»îÐÔ¡¢²»¿É»Ö¸´ÐÔ¡£
½éÉÜMD5¼ÓÃÜËã·¨»ù±¾Çé¿öMD5µÄÈ«³ÆÊÇMessage-Digest Algorithm 5£¬ÔÚ90Äê´ú³õÓÉMITµÄ¼ÆËã»ú¿ÆÑ§ÊµÑéÊÒºÍRSA Data Security Inc·¢Ã÷£¬¾MD2¡¢MD3ºÍMD4·¢Õ¹¶øÀ´¡£
Message-Digest·ºÖ¸×Ö½Ú´®(Message)µÄHas ......
×î½üÔÚÓÃÈóǬÔÚ×öһЩwebÏîÄ¿µÄ±¨±í£¬ÆäÖÐÓÐÒ»¸öÅúÁ¿´òÓ¡µÄ±¨±í¡£ÐèÒª°Ñ²ÎÊý´«µ½±¨±íÀµ±°ÑÖÐÎÄ´«µ½ÀïÃæÊ±×ÜʱÂÒÂ룬²ÉÓÃÁ˸÷ÖÖתÂ뷽ʽ£¬Ò²Ã»×ª¹ýÀ´£¬ÔÎ.........
Ϊʲô»áÓÐÕâô¶àµÄ±àÂ룬ºÃÍ·ÌÛѽ... ......
1.Ê×ÏÈдһ¸öȨÏÞ¹ýÂËfilterÀà,ʵÏÖFilter½Ó¿Ú
/*Ê×ÏÈдһ¸öȨÏÞ¹ýÂËfilter*/
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.FilterChain;
import ......