jconsole ¼à¿Ø±¾»úµÄËùÓÐ Java Ó¦ÓúÍÔ¶³ÌµÄÓ¦ÓÃ
ÆäʵÔÚ JDK 5 ÖÐÒѾмÓÈëÁËÕâ¸ö¹¦ÄÜÁË. ÏÖÔÚµÄ JDK ÒѾÄÚÖÃÁË¶Ô VM µÄ¼à¿Ø¹¦ÄÜ. JDK 6 ÖÐÕâ¸ö¹¤¾ß±äµÄ¸ü¼ÓºÃÓÃÁË. ¹ØÓÚ JDK 5 ÖÐÈçºÎʹÓÃÕâ¸ö¹¤¾ß¿ÉÒԲο¼ÕâÀï: http://java.sun.com/developer/technicalArticles/J2SE/jconsole.html
http://java.sun.com/j2se/1.5.0/docs/guide/management/jconsole.html
jconsole ¿ÉÒԺܷ½±ãµÄ¼à¿Ø±¾»úµÄËùÓÐ Java Ó¦ÓúÍÔ¶³ÌµÄÓ¦ÓÃ.
¼à¿Ø±¾µØÓ¦ÓÃ
Ê×ÏȾÍÊÇÆô¶¯ÄúÒª¼à¿ØµÄÓ¦ÓÃ, ÀýÈçÎÒÓà JDK 1.6 À´Æô¶¯ÁË Tomcat, »òÕß Eclipse Ò²¿ÉÒÔ, ¿ÉÒÔÔÚÈÎÎñ¹ÜÀíÆ÷(Ctrl+Alt+Del¿ÉÒÔµ÷³öÀ´, »òÕßÔÚÈÎÎñÀ¸µã»÷ÓÒ¼ü)Àï¿´µ½½ø³ÌID, ÀýÈçÎÒÕâÀïÊÇ 6132.
½Ó×ÅÔÚ JDK °²×°Ä¿Â¼ÖÐ(<JDK_HOME>/bin/jconsole.exe)Æô¶¯ jconsole.exe (Ë«»÷»òÕßÔÚ cmd ÀïÃæÇÃÈë jconsole), Ö÷½çÃæ»áÌáʾÄú½¨Á¢Ò»¸öÐÂÁ¬½Ó:
¿ÉÒÔ¿´µ½½ø³ÌID, Ñ¡ÔñËü, È»ºóµã»÷"Á¬½Ó". ÕâЩ ID ±ØÐ붼ÊÇÓà JDK 1.6 µÄ java.exe Æô¶¯µÄ, ·ñÔòÔÚÁбíÀï¿´²»µ½.
JConsle Äܼà¿ØÄÚ´æ,Ïß³Ì,ÀàµÄÊýÄ¿ºÍCPUÈ»ºóµã»÷¸÷¸ö Tab ¿ÉÒÔ¿´µ½ÏêϸµÄÊä³ö, ÏêϸµÄÊä³ö°üÀ¨:
ÄÚ´æ: ¶Ñ/·Ç¶Ñ, ·åÖµ, ÄÚ´æµÄ¸÷¸ö²¿·Ö, ÀýÈç Perm, Eden µÈµÄ´óСÇúÏßͼ.
Ïß³Ì: ·åÖµ, ËùÓÐÏ̵߳ÄÁбí, ¶ÑÕ»¸ú×Ù(Äĸö¶ÔÏóÖеÄÏß³Ì)µÈ. »¹¿ÉÒÔÇ¿ÖÆÖ´ÐÐGC.
Àà: ·åÖµ, Àà×ÜÊýÇúÏßͼ.
MBean: һЩ JVM ²ÎÊýµÄÏêϸ MBean ÐÅÏ¢.
¼à¿ØÔ¶³Ì½ø³Ì
Ê×ÏÈÐèÒªÔÚÔËÐеÄÓ¦ÓÃÉÏÆôÓÃÔ¶³Ì¹ÜÀí, ²ÎÊýÈçÏÂ(¼òµ¥ÆÚ¼ä¾Í²»¼ÓÓû§ÑéÖ¤ÁË):
java -Dcom.sun.management.jmxremote.port=1090 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -jar ../demo/jfc/Java2D/Java2Demo.jar
È»ºóÁ¬½ÓµÄʱºòÑ¡ÔñÔ¶³Ì½ø³Ì, µØÖ·ÊäÈë:
localhost:1090
¼´¿É.µ±È»ÔÚ±ðµÄµçÄÔÉÏ(Ò»°ãÊǾÖÓòÍø)¿ÉÒÔÊäÈëÄǸöµçÄÔµÄIP.
×ÛÊö: ʹÓà JConsole ¿ÉÒÔ¼òµ¥µÄ¼à¿Ø Server ״̬, µ«ÊDZ¾ÉíÒªÕ¼Ò»¶¨µÄ×ÊÔ´, ²»¹ý JVM ×Ô´øµÄ¼à¿Ø, ÀíÂÛÉϽ²Ó¦¸ÃÊÇÕ¼×ÊÔ´ºÜСºÜСµÄ, ¿ÉÒÔÓÃËüÀ´·½±ãµÄÁ˽â Web ·þÎñÆ÷Ó¦Óýø³ÌµÄ״̬. Èç¹ûÒªµ÷ÓÅÓ¦ÓÃ, »¹ÊÇʹÓà JProfiler µÈ¹¤¾ß¸üºÃһЩ, µ±È»ËüÃÇÕ¼µÄ×ÊÔ´Ò²¸ü´ó.
ºó¼Ç:
jdk1.6.0\demo\management\MemoryMonitor
ÕâÀï´øÁ˸öºÜºÃµÄ»ÄÚ´æÇúÏßͼµÄÀý×Ó... ´ó¼Ò¸Ä¸Ä¾Í¿ÉÒÔʵÏÖͬʱ¼à¿Ø¶ą̀ Server µÄÄÚ´æÇúÏßÁË....
Ïà¹ØÎĵµ£º
JFCÊÇÒ»¸öÇáÁ¿¼¶µÚÈý·½¿ªÔ´×é¼þ,²»ÒÀÀµÆäËû×é¼þ,ʹÓÃProject¼´¿É¡£
×÷ÓãºÒÔͼ±í·½Ê½Õ¹Ê¾Êý¾Ý
꿅᣼www.jfree.org
Àà¿â£ºJFreeChart¡¢JCommon(JFreeReportºÍJFreeChartµÄ¹«¹²Àà¿â)
Ö¸ÄÏ£º jfreechart-1.0.13-install.pdf
API: jfreechart-1.0.13-javadocs.zip
ѹËõ°ü£ºjfreechart-1.0.13
ant ......
ÓÃjava´´½¨XmlµÄ4´óÀࣺ
Element£º½ÚµãÀà
AttributeÊôÐÔÀà
Document£ºÖ¸µÄ¾ÍÊÇÎĵµÀà
XMLOutput£ºÊä³öÀà
´ËÀàÊÇÓÃjava½¨Á¢Ò»¸öxmlÎļþ
public class TestJdom {
//´´½¨XML£¨Ä£ÐÍ£©dom
public static void main(String[] args) {
  ......
¡¡¡¡inkfish·Ò룬ÇëÎðÉÌÒµÐÔÖÊתÔØ£¬×ªÔØÇë×¢Ã÷À´Ô´£¨http://blog.csdn.net/inkfish
£©¡£±¾ÎÄÊÇÎÒѧϰJUELͬʱ£¬¶ÔÔÍøÕ¾½øÐеļòµ¥µÄ·Ò룬ÔÍøÕ¾µØÖ·£ºhttp://juel.sourceforge.net/guide/basic/factory.html
¡£ËµÊµ»°£¬Õâƪ·ÒëµÄµÄÈ·²»ÔõÑù¡£
±í´ïʽ¹¤³§£¨Expression Factory£©
¡¡¡¡Èç¹ûҪʹÓÃEL
£¬¾Í±ØÐëÒªÓÐÒ ......
±¾ÎÄ°üÀ¨:
A: servletÔ´ÂëʵÀý
B: servlet²¿Êð
C: ¿Í»§¶ËÔ¶³Ìµ÷ÓÃ
D: servlet¿ª·¢µ÷Óù¤¾ß
A: servletÔ´ÂëʵÀý
package com.viewlinecn.userlogin.www.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http ......
iSpectrum:Java for iPhone
À´Ô´£ºhttp://www.javaeye.com/news/13338-ispecturn-java-for-iphone
iSpectrum¿ÉÒÔ½«ÄãµÄEclipse±ä³É¿ª·¢Java iPhoneÓ¦ÓõĻ·¾³£¬ÄãÖ»ÐèÒª°²×°iSpectrum µÄEclipse²å¼þ¼´¿É¡£
µã»÷²é¿´Ê¾Àý£ºhttp://www.flexycore.com/en/developer-connection/demos.html
......