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

JavaÈ¡µÃ´úÂëËùÔÚÐкŵķ½·¨

ÓÃCµÄÈËÒ»¶¨ÖªµÀ__FILE__ºÍ__LINE__,µ«ÊÇJavaÖÐ ²¢Ã»ÓÐÕâÑùµÄ¶¨Ò壬ÓÐʱºòµ÷ÊÔ¶àÏ߳̾ͺܲ»·½±ã£¬Ã»°ì·¨£¬×Ô¼º¶¯ÊÖ£¬·áÒÂ×ãʳ~ÓÃÏÂÃæµÄº¯ÊýÈ¡µÃµ±Ç°Ðкš£
º¯Êý£º
/**
*µÃµ½ExceptionËùÔÚ´úÂëµÄÐÐÊý
*Èç¹ûûÓÐÐÐÐÅÏ¢,·µ»Ø-1
*/
public static int getLineNumber(Exception e){
StackTraceElement[] trace =e.getStackTrace();
if(trace==null||trace.length==0) return -1; //
return trace[0].getLineNumber();
}
ʹÓÃÀý×Ó£º
System.out.println(“Current line:”+getLineNumber(new Exception()));


Ïà¹ØÎĵµ£º

Èý¡¢¶ÔjavaÐÂÊֵļ¸¸ö½¨Òé

    1¡¢Ñ§»áÔõôÉèÖû·¾³±äÁ¿
  ´ð°¸£ºÔÚÎҵĵçÄÔÀïÉèÖÃ
    2¡¢Ñ§»áÔõôÉèÖÃjava ³ÌÐòÊäÈë²ÎÊý
´ð°¸£ºmain ²ÎÊýÊý×é
    3   ѧ»áÔõôÉèÖà classpath·¾¶£¬ÒÔ¼°classpathÊǸÉôµÄ
´ð°¸£ºÒýÓõÄÀàµÄ·¾¶
   4    ÖªµÀjarÎÄ ......

Æß Java EE

   ʲôÊÇjava EEÁË¡£Ò»°ãÀ´Ëµ£¬Ò»¸ö³ÉÊìµÄjava EE½â¾ö·½°¸£¬°üÀ¨ÒÔϼ¸¸ö²¿·Ö¡£
 
 1¡¢¿ÉÒÔ¶ÔÍâÌṩ»ùÓÚ±ê׼ЭÒéÈçxmlµÄ·þÎñ
ÈçWeb Service
 2¡¢ÄÚ²¿Í¨ÐÅ»ùÓÚÃæÏò¶ÔÏóµÄͨÐÅЭÒé
Èç RMI£¬Corba£¬XML RPC
 3¡¢°²È«ÐԸߣ¬È¨ÏÞ¿ØÖÆÑϸñ
Èç MD5£¬SSL£¬AccountDomain
 4 &nbs ......

java Óʼþ·þÎñÆ÷Ö®james°²×°ÅäÖÃ


James Óʼþ·þÎñÆ÷µÄ°²×°ºÍÅäÖÃ
»·¾³:
Óʼþ·þÎñÆ÷:
²Ù×÷ϵͳ:REDHAT LINUX AS 4
IP:192.168.1.108
×ÓÍøÑÚÂë:255.255.0
Íø¹Ø:192.168.1.1
DNS:192.168.1.2
¿Í»§¶Ë:
²Ù×÷ϵͳ:windows 2003
IP :192.168.1.2
×ÓÍøÑÚÂë:255.255.255.0
Íø¹Ø:192.168.1.1
DNS:192.168.1.2
¼òµ¥½éÉÜÒ»ÏÂÓʼþ·þÎñÆ÷µÄÅäÖû·¾³
ÒѾ­° ......

JavaÄÚ´æÒç³ö

´ÓÎïÀíÉϽ²£¬¶ÑÕ»¾ÍÊÇÒ»¶ÎÁ¬Ðø·ÖÅäµÄÄÚ´æ¿Õ¼ä¡£ÔÚÒ»¸ö³ÌÐòÖУ¬»áÉùÃ÷¸÷ÖÖ±äÁ¿¡£¾²Ì¬È«¾Ö±äÁ¿ÊÇλÓÚÊý¾Ý¶Î²¢ÇÒÔÚ³ÌÐò¿ªÊ¼µÄʱºò¾Í±»¼ÓÔØ¡£¶ø³ÌÐòµÄ¶¯Ì¬µÄ¾Ö²¿±äÁ¿Ôò·ÖÅäÔÚ¶ÑÕ»ÀïÃæ¡£
JVM¹ÜÀíÁ½ÖÖÀàÐ͵ÄÄڴ棬¶ÑºÍ·Ç¶Ñ¡£¶ÑÊǸø¿ª·¢ÈËÔ±ÓõÄÉÏÃæ˵µÄ¾ÍÊÇ£¬ÊÇÔÚJVMÆô¶¯Ê±´´½¨£»·Ç¶ÑÊÇÁô¸øJVM×Ô¼ºÓõģ¬ÓÃÀ´´æ·ÅÀàµÄÐÅÏ¢µÄ¡£Ëüº ......

Berkeley DB JAVA°æ±¾ÖУ¬ÀàÔöÇ¿Æ÷µÄʹÓÃ

¾ÝÎĵµËù˵£¬ÀàÔöÇ¿Æ÷±ÈÓôúÀíµÄ·½Ê½ËÙ¶ÈÉÏÓÐÓÅÊÆ¡£
ÓÐÁ½ÖÖ·½Ê½£¬
µÚÒ»ÖÖÊÇÔÚÀà¼ÓÔØʱ¶¯Ì¬´¦Àí£¬Õâ¸ö¶ÔÏÖÓгÌÐò²»ÓÃÐ޸ġ£Ö»ÐèÒª¸ÄÏÂÔËÐеÄjava½Å±¾¼´¿É
¶ÔÓÚJava 1.5ÈçÏÂËùʾ
java -javaagent:lib/je-<version>.jar=enhance:packageNames ...
je-<version>.jar ¾ÍÊÇBerkeley DB JAVA¿âµÄÃû×Ö¡£ packageNa ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ