JAVA HEAP²é¿´¼òµ¥°ì·¨
×î½üÔÚ¿´JVMÓйض«Î÷£¬·¢ÏÖÒ»¸ö¼òµ¥ºÍfreeµÄHEAP DUMP²é¿´·½Ê½£¨»ùÓÚSUN JDK)
ÏÈʹÓÃ
jmap -dump:live,format=b,file=heap.bin 9381
ÆäÖÐ9381ΪJAVA ½ø³ÌPID
È»ºóÖ´ÐÐjhat heap.bin
´ýÏÔʾ
Snapshot resolved.
Started HTTP server on port 7000
Server is ready.
ÔÙʹÓÃWEB BROWER µÇ¼jhat ä¯ÀÀÆ÷¶Ë¿Ú¼´¿É
ΨһµÄÎÊÌâÊǶ˿ڲ»Òª±»·À»ðǽÆÁ±ÎÁË¡£
Ïà¹ØÎĵµ£º
XSDÎļþ £¨XML Schema ÓïÑÔÒ²³Æ×÷ XML Schema ¶¨Ò壨XML Schema Definition£¬XSD£©¡£ ¾ßÌåʹÓ÷½·¨ºÍ¶¨ÒåÇë²Î¿´£º
http://www.w3school.com.cn/schema/index.asp
java×Ôjdk1.5ÒÔÉÏÐÂÔöÁËSchemaFactoryÀà ¿ÉÒÔʵÏÖ¶ÔXSDÑéÖ¤µÄÖ§³Ö£¬Ê¹ÓÃÆðÀ´Ò²ºÜ·½±ã¡£
ÒÔÏ´úÂë¿ÉÓÃÔÚJDK1.5+ ÑéÖ¤xml
public class SimpleErrorHandler i ......
java
Êý×ÖÖ¤ÊékeytoolÓ÷¨
2009-06-14
21:05
Java ÖÐµÄ keytool.exe £¨Î»ÓÚ
JDK\Bin Ŀ¼Ï£©¿ÉÒÔÓÃÀ´´´½¨Êý×ÖÖ¤Ê飬ËùÓеÄÊý×ÖÖ¤ÊéÊÇÒÔÒ»ÌõÒ»Ìõ(²ÉÓñðÃûÇø±ð)µÄÐÎʽ´æÈëÖ¤Êé¿âµÄÖУ¬Ö¤Êé¿âÖеÄÒ»ÌõÖ¤Êé°üº¬¸ÃÌõÖ¤ÊéµÄ˽Կ£¬¹«Ô¿ºÍ¶ÔÓ¦µÄÊý×ÖÖ¤ÊéµÄÐÅÏ¢¡£Ö¤Êé¿âÖеÄÒ»ÌõÖ¤Êé¿ÉÒÔµ¼³öÊý×ÖÖ¤ÊéÎļþ£¬Êý×ÖÖ¤ÊéÎļþÖ» ......
WindowsϵÄMemcache°²×°£º
1. ÏÂÔØmemcacheµÄwindowsÎȶ¨°æ£¬½âѹ·Åij¸öÅÌÏÂÃ棬±ÈÈçÔÚc:\memcached
2. ÔÚÖնˣ¨Ò²¼´cmdÃüÁî½çÃ棩ÏÂÊäÈë ‘c:\memcached\memcached.exe -d install’ °²×°
3. ÔÙÊäÈ룺 ‘c:\memcached\memcached.exe -d start’ Æô¶¯¡£NOTE: ÒÔºómemcached½«×÷ΪwindowsµÄÒ»¸ö· ......
1.MVCµÄ¸÷¸ö²¿·Ö¶¼ÓÐÄÇЩ¼¼ÊõÀ´ÊµÏÖ?ÈçºÎʵÏÖ?
´ð£ºMVCÊÇModel£View£ControllerµÄ¼òд¡£"Model" ´ú±íµÄÊÇÓ¦ÓõÄÒµÎñÂß¼£¨Í¨¹ýJavaBean£¬EJB×é¼þʵÏÖ£©£¬ "View" ÊÇÓ¦ÓõıíʾÃ棨ÓÉJSPÒ³Ãæ²úÉú£©£¬"Controller" ÊÇÌṩӦÓõĴ¦Àí¹ý³Ì¿ØÖÆ£¨Ò»°ãÊÇÒ»¸öServlet£©£¬Í¨¹ýÕâÖÖÉè¼ÆÄ£ÐÍ°ÑÓ¦ÓÃÂß¼£¬´¦Àí¹ý³ÌºÍÏÔʾÂß¼·Ö³É²» ......
package com.tonglian.test;
import java.util.TimerTask;
//TimerTaskÊǸöÐéÀ࣬ÆäÖÐÓÐÒ»¸örun()
public class Work extends TimerTask{
@Override
public void run() {
// TODO Auto-generated method stub
System.out.println("tttt/n");
}
}
//¹¦ÄÜ£ºÃ¿¸ô1Ãë¾Í»áµ ......