Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaʵÏÖzipÓëunzip

jdkÌṩÁËZipÏà¹ØµÄÀà·½±ãµÄʵÏÖѹËõºÍ½âѹËõ¡£Ê¹Ó÷½·¨ºÜ¼òµ¥¡£Ï±߷ֱðÊÇѹËõºÍ½âѹËõµÄ¼òµ¥ÊÂÀý
1£¬Ñ¹ËõµÄ
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class Zip {
    static final int BUFFER = 2048;
    public static void main(String argv[]) {
        try {
            BufferedInputStream origin = null;
            FileOutputStream dest = new FileOutputStream("E:\\test\\myfiles.zip");
            ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
                    dest));
            byte data[] = new byte[BUFFER];
            File f = new File("e:\\test\\a\\");
            File files[] = f.listFiles();
            for (int i = 0; i < files.length; i++) {
                FileInputStream fi = new FileInputStream(files[i]);
            


Ïà¹ØÎĵµ£º

JavaÄÚ´æÒç³ö·ÖÀà

¹ØÓÚJavaÒç³ö·ÖÀ࣬ÎÒ¾­³£Åöµ½µÄÊÇÁ½ÀࣺһÀàÊÇjava.lang.OutOfMemoryError: Java heap space£¬Ò»ÀàÊÇjava.lang.OutOfMemoryError: PermGen space¡£
ÔÚÕâÁ½ÀàÖУ¬Ç°ÕßÅö¼ûµÄ´ÎÊý±È½ÏƵ·±¡£ÒòΪµ¼ÖÂJava heap spaceµÄÇé¿ö£¬ÓÐʱºò²¢²»ÊÇÄÚ´æ²»¹»£¬ËüÒ²»áÅ×´Ë´íÎóÐÅÏ¢¡£ÀýÈçÎÒ¾ÍÅöµ½¹ýÕâÑùµÄÇé¿ö£¬ÎÒµ±Ê±Í¨¹ýGCÈÕÖ¾·¢ÏÖ£¬ÄÚ´ ......

ÎÒÓÃÕâ¸ö¿´Ð§¹û£ºÒ»¸ö»ù±¾µÎJava´°¿Ú´ø°´¼ü¼ì²â

Ò»¸öJava´°¿Ú´ø°´¼ü¼ì²â£¨ÅÜJava¿ÉÊÓС³ÌÐòʱÓã©£¬沒¼ÓÐÞÊΣ¬°³×Ô¼ºÓõΡ£
package math;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
/**
* »ù±¾µÄ»æͼ´°¿Ú£¬»Ø³µ¹Ø±Õ´°¿Ú
*/
@SuppressWarnings("s ......

JAVA±à³Ì¹æ·¶

1. Ó¦Ó÷¶Î§
±¾¹æ·¶Ó¦ÓÃÓÚ²ÉÓÃJ2EE¹æ·¶µÄÏîÄ¿ÖУ¬ËùÓÐÏîÄ¿ÖеÄJAVA´úÂ루º¬JSP£¬SERVLET£¬JAVABEAN£¬EJB£©¾ùÓ¦×ñÊØÕâ¸ö¹æ·¶¡£Í¬Ê±£¬Ò²¿É×÷ΪÆäËüÏîÄ¿µÄ²Î¿¼¡£
2. Éè¼ÆÀàºÍ·½·¨
2.1     ´´½¨¾ßÓкÜÇ¿ÄÚ¾ÛÁ¦µÄÀà
·½·¨µÄÖØÒªÐÔÍùÍù±ÈÀàµÄÖØÒªÐÔ¸üÈÝÒ×Àí½â£¬·½·¨ÊÇÖ¸Ö´ÐÐÒ»¸öͳһº¯ÊýµÄÒ»¶Î´úÂë¡£Àà³£± ......

java mail: set

Problem: email thread is hanging at socket read
Today we found a email problem in production, all of the mail threads (3 threads) are hanging/sitting/blocking at same point
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ