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

javaµ÷ÓÃwindows API

ʹÓÃjinvokeµ÷ÓÃwindowsAPI¡£jnaʹÓñȽÏÂé·³£¬ÐèҪдc´úÂëºÍ²ÎÊýת»»£¬jinvokeµÄʹÓþÍÏñjdkÖеİüÒ»Ñù¡£
¹ÙÍøÊ¹Óòο¼£ºhttp://www.jinvoke.com/calling-the-win32-api-from-java
Ò»¸öµ¯³ö¿òµÄÀý×Ó£¨ÕâÖÖ´úÂëÓÃÓÚµ÷ÓÃÈκÎdll£¬²»Ö»ÊÇwindowsµÄ£¬Ò²¿ÉÒÔÊÇ×Ô¼ºÐ´µÄdll£©
import com.jinvoke.JInvoke;
import com.jinvoke.NativeImport;
public class HelloWindows
{
@NativeImport(library="User32")
public static native int MessageBox(int hwnd,
           String text,
           String caption,
           int type); //windows Api MessageBoxº¯ÊýÔ­ÐÍ
public static void main(String[]argc)
{
   JInvoke.initialize();
   MessageBox(0,"Thisi MessageBox is a native Win32 MessageBox",
      "Hellow World",0);
}
}
ÔËÐÐЧ¹û£º
*
ʹÓÃÒÔÉÏ´úÂ뷽ʽ¿ÉÒÔÈÎÒâµ÷Óñ¾µØµÄDLLÎļþ¡£
×¢Ò⣺1.import com.jinvoke.JInvoke;import com.jinvoke.NativeImport;//ÒýÓðü
   2.@NativeImport(library="User32")//Ö¸¶¨±¾µØµÄDLLÎļþ
   3.public static native int MessageBox(int hwnd,String text,String caption,int type); //windows Api MessageBoxº¯ÊýÔ­ÐÍ ÉùÃ÷Ò»¸ö¿ÉÒÔÔÚjavaµ±Ç°ÀàÖÐʹÓõķ½·¨
   4.JInvoke.initialize();//ʵÀý»¯JInvoke
   5.MessageBox(0,"Thisi MessageBox is a native Win32 MessageBox","Hellow World",0);//È»ºó¾Í¿ÉÒÔ¿ªÊ¼µ÷ÓÃDLLÖеĺ¯ÊýÁË
*
Èç¹ûÖ»ÊÇΪÁËʹÓÃUser32.dllÖеĺ¯Êý¿ÉÒÔÖ±½ÓʹÓÃjinvoke.jarÖÐÌṩµÄUser32À࣬¶ø²»±ØÊ¹ÓÃ@NativeImport(library="User32")È¥°üº¬Ò»¸öDLL£¬ÔÙÈ¥ÉùÃ÷Ò»¸ö×öº¯ÊýµÄÀàÐÍת»»µÄ·½·¨¡£
*
±àÒëÊÇÐèÒª´øÉÏjinvoke.jar¼´£ºjava -classpath .;jinvoke.jar HelloWindows


Ïà¹ØÎĵµ£º

java»ù´¡ÎÊ´ð£¨3£©

21¡¢Static Nested Class ºÍ Inner ClassµÄ²»Í¬¡£ Static Nested ClassÊDZ»ÉùÃ÷Ϊ¾²Ì¬£¨static£©µÄÄÚ²¿À࣬Ëü¿ÉÒÔ²»ÒÀÀµÓÚÍⲿÀàʵÀý±»ÊµÀý»¯¡£¶øÍ¨³£µÄÄÚ²¿ÀàÐèÒªÔÚÍⲿÀàʵÀý»¯ºó²ÅÄÜʵÀý»¯¡£
 22¡¢JSPÖж¯Ì¬INCLUDEÓ뾲̬INCLUDEµÄÇø±ð£¿¶¯Ì¬INCLUDEÓÃjsp:include¶¯×÷ʵÏÖ Ëü×ÜÊÇ»á¼ì²éËùº¬ÎļþÖеı仯£¬ÊʺÏÓÃÓÚ ......

java»ù´¡ÎÊ´ð£¨4£©

31¡¢EJB°üÀ¨£¨SessionBean,EntityBean£©Ëµ³öËûÃǵÄÉúÃüÖÜÆÚ£¬¼°ÈçºÎ¹ÜÀíÊÂÎñµÄ£¿
SessionBean£ºStateless Session Bean µÄÉúÃüÖÜÆÚÊÇÓÉÈÝÆ÷¾ö¶¨µÄ£¬µ±¿Í»§»ú·¢³öÇëÇóÒª½¨Á¢Ò»¸öBeanµÄʵÀýʱ£¬EJBÈÝÆ÷²»Ò»¶¨Òª´´½¨Ò»¸öеÄBeanµÄʵÀý¹©¿Í»§»úµ÷Ó㬶øÊÇËæ±ãÕÒÒ»¸öÏÖÓеÄʵÀýÌṩ¸ø¿Í»§»ú¡£µ±¿Í»§»úµÚÒ»´Îµ÷ÓÃÒ»¸öStateful S ......

Java ѧϰÔÓ̸

1£® ¹ØÓÚ¶¯Ì¬¼ÓÔØ»úÖÆ??
ѧϰJava±ÈC++¸üÈÝÒ×Àí½âOOPµÄ˼Ï룬±Ï¾¹C++»¹»ìºÏÁ˲»ÉÙÃæÏò¹ý³ÌµÄ³É·Ö¡£ºÜ¶àÈ˶¼Äܱ³³öÀ´JavaÓïÑÔµÄÌØµã£¬ËùνµÄ¶¯Ì¬¼ÓÔØ»úÖÆµÈµÈ¡£µ±È»¸ÅÄîÍùÍùÊÇÏȼÇס¶øºóÏû»¯µÄ£¬¿ÉÓжàÉÙÈËÕæÕýÈ¥Ìå»á¹ý¶¯Ì¬¼ÓÔØµÄ»úÖÆ£¬ÊÔͼȥѰÕÒ¹ýÆäÖеÄϸ½ÚÄØ?  Ìṩ´ó¼ÒÒ»¸ö·½·¨£º
ÔÚÃüÁîÐд°¿ÚÔËÐÐJava³ÌÐòµÄÊ ......

javaÖÐmap¼¯ºÏµÄÓ÷¨


http://blog.csdn.net/ycyangcai/archive/2009/06/21/4285997.aspx
1.ÉùÃ÷Ò»¸ömap: Map map = new HashMap(); 
2.ÏòmapÖзÅÖµ,×¢Ò⣺mapÊÇkey-valueµÄÐÎʽ´æ·ÅµÄ.Èç:
     map.put("sa","dd");
3.´ÓmapÖÐȡֵ:String str = map.get("sa").toString();½á¹ûÊÇ:str = "dd";
4.±éÀúÒ»¸ömap£¬´Ó ......

JavaÈçºÎ±éÀúMapµÄËùÓеÄÔªËØ

Map map = new HashMap(); 
Iterator it = map.entrySet().iterator(); 
while (it.hasNext()) { 
Map.Entry entry = (Map.Entry) it.next(); 
Object key = entry.getKey(); 
Object value = entry.getValue(); 

......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ