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

(ZZ)JAVA Properties

Ö÷ÒªÊÇÀûÓÃJavaÌṩµÄutil°üÖеÄPropertiesÀà¡£·Ï»°²»¶à˵£¬Ö±½Ó¿´´úÂ룺
view plaincopy to clipboardprint?
import java.util.*;
public class YourJavaProperties {
 public static void main(String args[]){
 Properties props=System.getProperties();
 System.out.println("JavaµÄÔËÐл·¾³°æ±¾£º"+props.getProperty("java.version"));
 System.out.println("JavaµÄÔËÐл·¾³¹©Ó¦ÉÌ£º"+props.getProperty("java.vendor"));
 System.out.println("Java¹©Ó¦É̵ÄURL£º"+props.getProperty("java.vendor.url"));
 System.out.println("JavaµÄ°²×°Â·¾¶£º"+props.getProperty("java.home"));
 System.out.println("JavaµÄÐéÄâ»ú¹æ·¶°æ±¾£º"+props.getProperty("java.vm.specification.version"));
 System.out.println("JavaµÄÐéÄâ»ú¹æ·¶¹©Ó¦ÉÌ£º"+props.getProperty("java.vm.specification.vendor"));
 System.out.println("JavaµÄÐéÄâ»ú¹æ·¶Ãû³Æ£º"+props.getProperty("java.vm.specification.name"));
 System.out.println("JavaµÄÐéÄâ»úʵÏÖ°æ±¾£º"+props.getProperty("java.vm.version"));
 System.out.println("JavaµÄÐéÄâ»úʵÏÖ¹©Ó¦ÉÌ£º"+props.getProperty("java.vm.vendor"));
 System.out.println("JavaµÄÐéÄâ»úʵÏÖÃû³Æ£º"+props.getProperty("java.vm.name"));
 System.out.println("JavaÔËÐÐʱ»·¾³¹æ·¶°æ±¾£º"+props.getProperty("java.specification.version"));
 System.out.println("JavaÔËÐÐʱ»·¾³¹æ·¶¹©Ó¦ÉÌ£º"+props.getProperty("java.specification.vender"));
 System.out.println("JavaÔËÐÐʱ»·¾³¹æ·¶Ãû³Æ£º"+props.getProperty("java.specification.name"));
 System.out.println("JavaµÄÀà¸ñʽ°æ±¾ºÅ£º"+props.getProperty("java.class.version"));
 System.out.println("JavaµÄÀà·¾¶£º"+props.getProperty("java.class.path"));
 System.out.println("¼ÓÔØ¿âʱËÑË÷µÄ·¾¶Áб


Ïà¹ØÎĵµ£º

Jconsole ºÍ jps ÎÞ·¨ÏÔʾ±¾µØ Java ½ø³ÌÁбí

ǰһÕóÔÚ¹«Ë¾ÀïʹÓà jconsle ʱһÇÐÕý³££¬È»¶øÔÚ¼ÒÖеĻúÆ÷ÉÏÈ´³öÏÖÁ˱êÌâËùʾµÄÎÊÌ⣺
jconsole ºÍ jps ÎÞ·¨ÏÔʾ±¾µØ Java ½ø³ÌÁÐ±í¡£
µ±Ê±Ö±½ÓÀûÓà -Dcom.sun.management.jmxremote.port=port Æô¶¯Ä¿±ê java ½ø³Ì£¬²¢ÔÚ jconsole ÖÐͨ¹ý localhost:port ·½Ê½³É¹¦Á¬½ÓÉÏÄ¿±ê java ½ø³Ì¡£ÓÐÁËÕâ¸ö work around Ö®ºó£¬¶ÔÕ ......

javaÓëÍøÂç


1 ÍøÂçͨÐŵı¾ÖÊÊǽø³Ì¼äͨÐÅ¡£   
2 TcpЭÒéºÍUDPЭÒé
TCP£º¿ªÏú´ó£¬ÓÃÓÚ¿É¿¿ÐÔÒªÇó¸ßµÄ³¡ºÏ¡£
TCPµÄ¹ý³ÌÏ൱ÓÚ´òµç»°µÄ¹ý³Ì
UDP£ºÓÃÔÚ¶ÔʵʱÐÔÒªÇó±È½Ï¸ßµÄ³¡ºÏ¡£
UDPµÄ¹ý³ÌÏ൱ÓÚдÐŵĹý³Ì¡£
×¢Ò⣺socketÊÇÌ×½Ó×Ö£¬ipºÍport£¨¶Ë¿ÚºÅ 0~65535¸ö¶Ë¿Ú£¬Ò»¸ö¶Ë¿ÚÖ»ÄÜÓÐÒ»¸ö½ø³Ì£©
3£¬   ......

Java±à³ÌÄÇЩʶù2_·½·¨

Java±à³ÌÄÇЩʶù52—·½·¨ÉùÃ÷
µÚÆßÕÂ ·½·¨
·½·¨µÄÀ´Ô´
·½·¨µÄ¸ÅÄîÀ´Ô´ÓÚÊýѧÉϵĺ¯Êý£¬ÔÚÊýѧÖУ¬µ±Êý¾Ý¾ßÓÐÒ»¶¨µÄ¹æÂÉʱ£¬¾ÍÊÇÓÃÒ»¸öº¯ÊýÀ´´úÂë¸ÃÊý×ֵĹæÂÉ£¬ÀýÈçf£¨n£©=nÔò´ú±í1¡¢2¡¢3¡¢……ÕâÑùµÄÒ»¸öÊýÁС£ÔÚÊýѧÉÏnÊDzÎÊý£¬¶ÔÓÚÈ·¶¨µÄnÖµÖ»ÓÐÒ»¸öf£¨n£©µÄÖµºÍËü¶ÔÓ¦
·½·¨ÊÇÒ»×éΪÁËʵÏÖÌØ¶¨¹¦Ä ......

Oracle ÓëÔÚJavaÖеÄÁ´½Ó

תÌû´¦£ºhttp://dong-java.javaeye.com/blog/375150 
1¡£ÍƼöʹÓÃOralce±È½ÏеÄ10.2.0.3 JDBC Drivers¡£Õâ¸ö°æ±¾¶Ô±È9.2µÄ×î´óµÄºÃ´¦ÊÇDriverManager.setLoginTimeoutº¯ÊýÊÇÆð×÷Óõġ£ÉèÖÃÁËÕâ¸ö²ÎÊý£¬ÔÚ¶ñÁÓµÄÍøÂç»·¾³ÖоͲ»»áÓÐÁ¬½ÓÊý¾Ý¿âµÄº¯Êý³¤Ê±¼ä²»·µ»ØµÄÇé¿ö¡£
2¡£JDBC Developer!ˉs Guide and Refer ......

Javaģʽ֮µ¥Àýģʽ

¼òµ¥µÄ˵µ¥Àý¾ÍÊÇ Ö»ÄÜÓÐÒ»¸öʵÀý£¬ËùÒԵط½Óõ½µÄʵÀý¶¼ÊÇͬһ¸ö¡£
¾ÍºÃÏñ¼ÒÈ˳Է¹£¬×À×ÓÊǵ¥ÀýµÄ£¬´ó¼ÒÓõÄÊÇͬһ¸ö¡£¶øÍëÊǶàÀýµÄ£¬Ã¿È˶¼ÓÐ×Ô¼¸µÄ¡£ ÏÂÃæÊǾßÌåµÄÀý×Ó£º
Javaģʽ֮µ¥Àýģʽ£º
          µ¥Àýģʽȷ±£Ò»¸öÀàÖ»ÓÐÒ»¸öʵÀý£¬×ÔÐÐÌṩÕâ¸öʵÀý²¢ÏòÕû¸öÏµÍ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ