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

Java Dynamic Proxy

import java.lang.reflect.*;
public class A extends Thread  {
    
    public static void main(String[] args) throws Exception{
    CC cc = new CC();
    HH hh = new HH(cc);
    II ii = (II) Proxy.newProxyInstance(HH.class.getClassLoader(),
                        new Class[]{II.class},
                        hh);
    System.out.println ("" + ii.getClass().getName());
    ii.test();
    }
}
interface II {
    void test();
}
class CC implements II {
    public void test() {
    System.out.println ("this is cc");
    }
}
class HH implements InvocationHandler {
    Object obj;
    HH(Object obj) {
    this.obj = obj;
    }
    
    public Object invoke(Object obj, Method m, Object[] args) throws Exception {
    System.out.println ("start");
    Object o = m.invoke(this.obj, args);
    System.out.println ("end");
    return o;
    }
}
ÔËÐÐʱ¼ÓÈë -Dsun.misc.ProxyGenerator.saveGeneratedFiles=true£¬¿ÉÒԵõ½proxy class¡£
²Î¿¼£ºhttp://www.javablogging.com/what-is-java-dynamic-proxies-api/
 


Ïà¹ØÎĵµ£º

Java µ÷Óà Oracle ´æ´¢¹ý³Ì·µ»Ø½á¹û¼¯

Oracle ´æ´¢¹ý³Ì·µ»Ø½á¹û¼¯Óà ref cursor ʵÏÖ¡£
ÊÔÑé²½ÖèÈçÏ£º
1. ½¨Á¢ ref cursor ÀàÐͺ͹ý³Ì
CREATE OR REPLACE PACKAGE types
AS
    TYPE ref_cursor IS REF CURSOR;
END;
/
CREATE TABLE STOCK_PRICES(
    RIC VARCHAR(6) PRIMARY KEY,
    PRICE NUMBER(7 ......

˵˵¶Ôjava nioµÄһЩ¸öÈË×ܽá


Ê×ÏÈÁ˽âÏÂËùνµÄjava nioÊǸöʲô¶«Î÷£¡
IOÊÇ¿¿×Ö·û»ò×Ö½Ú½øÐд«Ê䣬±È½ÏÂý£¡ ¶øNIOÊÇ¿¿¿é£¬ Ò²¾ÍÏ൱ÓÚÒ»¸öBuffer£¬ Ò»¿éÒ»¿é
µÄ´«Ê䣬 ËٶȽϿì
£¡ ͬʱ¼ÓÈëÁ˶àÏß³Ì
µÄ¿ØÖÆ£¬ Ò»¸öNIOÁ÷¿ÉÒÔͬʱ´«Êä¶à¸ö¿éµÈ£¬ Ò²¾ÍÊÇËùνµÄÒì²½´«Êä
£»
´«Í³
µÄ²¢·¢ÐÍ
·þÎñÆ÷Éè¼ÆÊÇÀûÓÃ×èÈûÐÍÍøÂçI/O
ÒÔ¶àÏ̵߳ÄÄ ......

[ÊÕ²Ø×ªÌû]JAVA¶ÔXMLÎĵµµÄËÄÖÖ½âÎö·½Ê½

±¾ÎÄת×ÔCSDN ·½ÖÛ
 ¶ÔÓÚÐèÒª×Ô¼º±àд´úÂëÀ´´¦Àí XML ÎĵµµÄ¿ª·¢ÈËÔ±À´Ëµ£¬ 
Ñ¡Ôñ DOM »¹ÊÇ SAX ½âÎöÄ£ÐÍÊÇÒ»¸ö·Ç³£ÖØÒªµÄÉè¼Æ¾ö²ß¡£
¡¡¡¡DOM ²ÉÓý¨Á¢Ê÷ÐνṹµÄ·½Ê½·ÃÎÊ XML Îĵµ£¬¶ø SAX ²ÉÓõÄʼþÄ£ÐÍ¡£
¡¡¡¡DOM ½âÎöÆ÷°Ñ XML Îĵµ×ª»¯ÎªÒ»¸ö°üº¬ÆäÄÚÈݵÄÊ÷£¬²¢¿ÉÒÔ¶ÔÊ÷½øÐбéÀú¡£Óà DOM ½âÎöÄ£Ð͵ÄÓ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ