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

oracle¾ÓÈ»Äܵ÷ÓÃjava³ÌÐò

ÒÔǰֻ֪µÀjavaÄܵ÷ÓÃoracle´æ´¢¹ý³ÌºÍº¯Êý£¬µ«½ñÌìÎÒ·¢ÏÖÔ­À´oracleÒ²¿ÉÒÔµ÷ÓÃjava
²âÊÔ»·¾³oracle 10g
call dbms_java.set_output(5000);
--Ê×ÏÈÔÚoracleÖбàÒëjavaÎļþ ÒÔÏÂÊǸö¼òµ¥µÄ
create or replace and compile java source named helloworld as
public     class   helloworld    {
         static    public    String Message(String name)    {
            return     " Hello,   "    +    name;
        }
}
--È»ºóÓú¯Êýµ÷ÓÃjava
create or replace function hello (name VARCHAR2 )   return    VARCHAR2
      as language java name
       ' Hello.Message (java.lang.String) return java.lang.String ' ;
      
--µ÷Óú¯Êý
select hello( ' world! ' ) from dual;
À©Õ¹£º
1¡£ oracle±àÒëjava ÐèÒªclassÎļþÂ𣿠 ÔÚµçÄÔÖÐËÑË÷ûÓÐÕÒµ½¡£ ºÜÉñÆæ£¬ ûÓÐclass JVMÈçºÎµ÷ÓÃjavaµÄ£¿£¿
2¡£ Èç¹ûjava³ÌÐòÒª·µ»Ø¼¯ºÏÔõô°ì£¿
3¡£ oracle ±àÒëjava  ±¨´íÂ𣬠¿ÉÒÔÒì³£´¦ÀíÂð£¿


Ïà¹ØÎĵµ£º

oracle RACͬ²½ÆµÂÊÉèÖÃ

max_commit_propagation_delayĬÈÏֵΪ700£¬¼´7Ã루µ¥Î»0.01s£¬http://www.orafaq.com/parms/parm1217.htm£©¡£
Õâ¸ö²ÎÊýÓ¦¸ÃÅäÖõÄÊÇRAC£¨Real Application Cluster£©Ö®¼äͬ²½Êý¾ÝµÄƵÂÊ¡£ÐÞ¸ÄÕâ¸ö²ÎÊýµÄºÃ´¦¾Í²»ÓÃ˵ÁË£¨
±¾ÈËÉîÊÜÆä¿à°¡
£©£¬µ«ÊÇÈç¹û×ßÁíÒ»¸ö¼«¶Ë£¬¿ÉÄÜ»á¸øÊý¾Ý¿âÔì³É¸ü´óµÄѹÁ¦
²ÎÊýÖ¸¶¨Ò»¸öinstance ......

C++ÓëJava±È½Ï(ת)


C++ÓëJava±È½Ï(ת)
Ó¢ÎÄÔ­ÎÄ£ºhttp://www.javacoffeebreak.com/articles/thinkinginjava/comparingc++andjava.html
“×÷ΪһÃûC++³ÌÐòÔ±£¬ÎÒÃÇÔçÒÑÕÆÎÕÁËÃæÏò¶ÔÏó³ÌÐòÉè¼ÆµÄ»ù±¾¸ÅÄ¶øÇÒJavaµÄÓï·¨ÎÞÒÉÊǷdz£ÊìϤµÄ¡£ÊÂʵÉÏ£¬Java±¾À´¾ÍÊÇ´ÓC++ÑÜÉú³öÀ´µÄ¡£”
¡¡¡¡È»¶ø£¬C++ºÍJavaÖ®¼äÈÔ´æÔÚһЩÏÔÖøµÄ²îÒ ......

xmlºÍjava BeanµÄÖ±½Óת»»£¬Xmap

package test;
import java.util.ArrayList;
import java.util.List;

import org.nuxeo.common.xmap.annotation.XNode;
import org.nuxeo.common.xmap.annotation.XNodeList;
import org.nuxeo.common.xmap.annotation.XObject;


/**
* Book ʵÌå¶ÔÏ󣬴˴¦ÓÃXMap×¢½â
* @author Administra ......

Java 7ÐÂI/OÌØÐÔ½âÎö


Java 7ÌṩÁËÒ»¸öÐÂAPI·ÃÎÊÎļþϵͳ£¬µ«³ý´ËÖ®Í⣬JSR 203(NIO.2)»¹°üº¬ÆäËüºÜ¶àÐÂÌØÐÔ£¬Õâ¸öа汾µÄÈ·ÐÂÔöÁ˺ܶà¸ÄÉÆI/O±à³ÌµÄÀ࣬±¾ÎĽ«»á½éÉÜÏÂÃæµÄÐÂÌØÐÔ£º
· SeekableByteChannel£ºËæ»ú·ÃÎÊͨµÀ;
· MulticastChannel£ºÔÊÐíIP¶à²¥µÄͨµÀ;
· NetworkChannel£ºÐµÄÍøÂçͨµÀ³¬¼¶½Ó¿Ú;
· ......

JavaÀàµÄ³õʼ»¯Ë³Ðò

ÎÒÃÇ´ó¼Ò¶¼ÖªµÀ£¬¶ÔÓÚ¾²Ì¬±äÁ¿¡¢¾²Ì¬³õʼ»¯¿é¡¢±äÁ¿¡¢³õʼ»¯¿é¡¢¹¹ÔìÆ÷£¬ËüÃǵijõʼ»¯Ë³ÐòÒÀ´ÎÊÇ£¨¾²Ì¬±äÁ¿¡¢¾²Ì¬³õʼ»¯¿é£©>£¨±äÁ¿¡¢³õʼ»¯¿é£©>¹¹ÔìÆ÷¡£ÎÒÃÇÒ²¿ÉÒÔͨ¹ýÏÂÃæµÄ²âÊÔ´úÂëÀ´ÑéÖ¤ÕâÒ»µã£º
 
Java´úÂë
public class InitialOrderTest {   
  
   ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ