Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

¼¸¸öjavaС¹¤¾ßʹÓÃ×ܽájps jmap jstat

ÎÄÖÐjstat²¿·Öת×Ô
http://blog.csdn.net/kozazyh/archive/2010/02/04/5289684.aspx
ÓÃjavaÓïÑÔ±à³ÌµÄʱºò£¬sunÌṩÁ˼¸¸öС¹¤¾ß£¬ÓÃ×Å»¹ÊDz»´íµÄ£¬ÌØÒâ×öÏÂ×ܽá
1.jps
jpsÓÃÀ´²é¿´µ±Ç°javaµÄ½ø³Ì£¬ÆäʵËüµÄ¹¦ÄÜ¿ÉÒÔ»ù±¾ÉÏÓÉpsÀ´ÊµÏÖ
¼¸¸ö³£ÓõIJÎÊý£º
-q Ö»ÏÔʾpid£¬²»ÏÔʾclassÃû³Æ,jarÎļþÃûºÍ´«µÝ¸ømain ·½·¨µÄ²ÎÊý
$
>
  jps 
-
q
28680
23789
23651
-m Êä³ö´«µÝ¸ømain ·½·¨µÄ²ÎÊý£¬ÔÚǶÈëʽjvmÉÏ¿ÉÄÜÊÇnull
$
>
 jps 
-
m
28715
 Jps 
-
m
23789
 BossMain
23651
 Resin 
-
socketwait 
32768
 
-
stdout 
/
data
/
aoxj
/
resin
/
log
/
stdout.log 
-
stderr 
/
data
/
aoxj
/
resin
/
log
/
stderr.log
-l Êä³öÓ¦ÓóÌÐòmain classµÄÍêÕûpackageÃû »òÕß Ó¦ÓóÌÐòµÄjarÎļþÍêÕû·¾¶Ãû
$
>
 jps 
-
l
28729
 sun.tools.jps.Jps
23789
 com.asiainfo.aimc.bossbi.BossMain
23651
 com.caucho.server.resin.Resin
-v Êä³ö´«µÝ¸øJVMµÄ²ÎÊý
$
>
 jps 
-
v
23789
 BossMain
28802
 Jps 
-
Denv.
class
.path
=/
data
/
aoxj
/
bossbi
/
twsecurity
/
java
/
trustwork140.jar:
/
data
/
aoxj
/
bossbi
/
twsecurity
/
java
/
:
/
data
/
aoxj
/
bossbi
/
twsecurity
/
java
/
twcmcc.jar:
/
data
/
aoxj
/
jdk15
/
lib
/
rt.jar:
/
data
/
aoxj
/
jd
k15
/
lib
/
tools.jar 
-
Dapplication.home
=/
data
/
aoxj
/
jdk15 
-
Xms8m
23651
 Resin 
-
Xss1m 
-
Dresin.home
=/
data
/
aoxj
/
resin 
-
Dserver.root
=/
data
/
aoxj
/
resin 
-
Djava.util.logging.manager
=
com.caucho.log.LogManagerImpl 
-
Djavax.management.builder.initial
=
com.caucho.jmx.MBeanServerBuilderImpl
2.jmap
jmapÓÃÀ´²é¿´¸ø¶¨Ò»¸ö½ø³Ì»òÕßÊǵ÷ÊÔ·þÎñÆ÷¹²Ïí¶ÔÏóÖ®¼äµÄÓ³ÉäÒÔ¼°¶ÑÖеÄϸ½Ú¡£sun¹Ù·½ÎĵµÖе͍Òå
jmap
prints shared object memory maps or heap
memory details of a given process or core file or a remote debug server
Ó÷¨:
jmap Ñ¡Ïî pid
jmap Ñ¡Ïî coref


Ïà¹ØÎĵµ£º

javaÖÐÈçºÎʹÓÃamcharts


×î½ü¹«Ë¾Åöµ½ÐèÒªÓÃͼ±íµÄÐÎʽÏÔʾһЩÊý¾Ý£¬ÎҾͿªÊ¼µ½ÍøÉϲéѯ£¬²éµ½ÁËjfreechartºÍamcharts,ÕâÁ½ÕßÎÒ¶¼ÊµÏÖ¹ýÁË£¬jfreechart×îºóÉú³ÉͼƬ£¬µ«ÊÇͼƬЧ¹û²»ÊÇÎÒÏëÒªµÄ£¬È»ºóÓÖÑо¿amcharts ËüµÄЧ¹ûȷʵºÜºÃ£¬¶øÇÒ¹Ù·½ÍøÕ¾ÉÏ»¹ÓкÃЩÀý×ӿɹ©ÏÂÔØ£¬ÍøÖ·ÊÇ:www.amcharts.com
£¨ÏëÒªÍê³ÉÒ»¸öamchartsͼÐÎÐèÒªswfobjects. ......

Java JDBCÖ±Á¬

public class www {
public static void main(String[]args) throws Exception {
//µÚÒ»²½£º¼ÓÔØÇý¶¯£¨Çý¶¯jar°ü±ØÐë¼ÓÈëclasspathÖУ©
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
//µÚ¶þ²½£º½¨Á¢Á¬½Ó£¨¸ù¾Ýʵ¼ÊÇé¿öÌæ»»Êý¾Ý¿âµÄÖ÷»úµØÖ·¡¢¶Ë¿ÚºÅ¡¢Êý¾Ý¿âÃ÷¡¢µÇ¼à ......

´«ÖDz¥¿ÍJAVAÅàѵstruts2ѧϰ±Ê¼ÇÒ»

´«ÖDz¥¿ÍJAVAÅàѵstruts2ѧϰ±Ê¼ÇÒ»
   
Àë±ÏÒµÓÖ×ß½üÁËÒ»²½£¬ÐÄÀïÓÖĪÃûµÄ½ôÕÅÆðÀ´¡£½ñÌìÓÐÒ»¸öͬÐĹ«Ë¾·Å¼ÙÐÇÆÚѧУÀ´ÉϿΣ¬ÎÒ¶ÔÆä³ýÁËÅå·þÖ®Í⣬¾ÍÖ»ÓÐÏÛĽÁË£¬¹¤×Ê6.5£Ë¿É²»ÊÇÎÒÏÖÔÚµÄˮƽ
¸ÒÏëµÄºÇ£¬ËäÈ»ÎÒ¶Ô£³£Ç²»ÊǺܸÐÐËȤ£¬ÎÒÒ²¸üÏàÐŽÅ̤ʵµÄÈ¥×ߺÃÿһ²½À´µÃ̤ʵ£¡µ«ÊÇÕ⼸¸öͬѧËùÈ¡µÃ³É¼¨È ......

´¿java PHPÒýÇæ——Quercus

ÓÉÓÚ¹«Ë¾ÏîÄ¿µÄÐèÒª£¬×î¾­ÔÚÑо¿QuercusÒ»¸ö´¿javaµÄphpÒýÇæ¡£ÏîÄ¿ÕâÁ½¸öÐèÒª×öµÄ¾ÍÊǽ«¸ÃÒýÇæ²Ã¼ô£¬×öÒ»¸öÏà¶Ô°²È«µÄ°æ±¾£¬Ìṩ¸øISVʹÓã¬Í¬Ê±£¬ÔÚÒýÇæÖÐÌṩĬÈϵĽӿڹ©µ÷Óá£ËùÒÔÏÈÑо¿ÁËһϣ¬ÔÚQuercusÒýÇæµÄÖ§³ÖÏ£¬PHPÈçºÎÓëjava¼¯³É¡£
ÒÔÏÂÊÇѧϰµ½µÄ¼¸µã£º
1¡¢Èç¹ûʹÓàResin-IoC/WebBeansÀ´×éÖ¯Ó¦Óõķþ ......

¡¾JAVAѧϰ±Ê¼Ç¡¿01 ±êÖ¾·ûºÅ¡¢¹Ø¼ü×Ö¡¢ÀàÐÍ

Ò»¡¢JAVAÖж¨ÒåÁËÈýÖÖ×¢ÊÍÀàÐÍ£º
//µ¥ÐÐ×¢ÊÍ——×¢Ê͵½ÐÐβ
/*¶àÐÐ×¢ÊÍ*/
/**¿ÉÒÔÓÃÓÚÎĵµ´¦ÀíµÄµ¥ÐлòÕß¶àÐÐ×¢ÊÍ*/
// µ¥ÐÐ×¢ÊÍ
/*
¶àÐÐ×¢ÊÍ£¬´ËÄÚÈÝÒ²²»»á±»Ö´ÐÐ
*/
/**
Îĵµ×¢ÊÍ£¬ÓÐרÃŵŤ¾ß
*/
public class JavaDemo01
{
// Ö÷·½·¨
public static void main(String args[])
{
// Ô ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ