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

Javaµ÷ÓÃ xx.so¿â

package com.xxx.yyy;
public class kkkEncode
{
    public native static boolean encode(double loIn, double laIn, double[] point);    //ÉùÃ÷Ò»¸öͬ¿âÒ»ÑùµÄ·½·¨   
    public native static boolean decode(double loIn, double laIn, double[] point);
 
 
    static {
        System.loadLibrary("DataCal");   //¼ÓÔØ¿â£¬¿âÎļþÃû:libDataCal ,´úÂë ²»ÐèҪдlib
    }
 
}


Ïà¹ØÎĵµ£º

javaÈëÃÅ

 Javaѧϰ´ÓÈëÃŵ½¾«Í¨ 
Ò»¡¢ JDK (Java Development Kit) 
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......

delphi + java µÄ·Ö²¼Ê½Ó¦ÓÃ

½áºÏDelphi
¿Í»§¶Ë×ÀÃæ¿ª·¢µÄÓÅÊÆºÍJavaµÄÎȽ¡Ç¿×³ÌØÐÔ£¬²ÉÓÃDelphi
Client + Java ServerµÄϵͳ¼Ü¹¹Ó¦¸ÃÊǺÜÓÐÊг¡µÄ£¬¾­¹ýÒ»¶Îʱ¼äµÄʵ¼ÊÏîĿʵ¼ù£¬ÊµÏּܹ¹ÊÇÕâôʵÏֵ쬹©ÌÖÂÛ£º
1.ºǫ́ӦÓ÷þÎñ²ã¿É²ÉÓûùÓÚSpring+HibernateµÄÇáÁ¿¼¶J2EEʵÏÖ£¬²¢Ê¹ÓÃApache XML-RPC
Ìṩ¿Í»§¶Ëµ÷Óýӿڣ»
2.ǰ̨²ÉÓà Delphi
......

ʵ¼ùJavaÖУ¬Jniµ÷ÓÃDLLÎļþ±¾µØ·½·¨

JavaÖУ¬Jniµ÷ÓÃDLLÎļþÊÔÑé
 
ËùÓÐÎļþ¾ùÔÚE:\·¾¶Ï¡£
°²×°jdk1.6.0_07
°²×°ÁËVC++6.0
µÚÒ»²½£¬
HelloWorld.java
µÚ¶þ²½£¬
E:\>javac HelloWorld.java
µÃµ½
HelloWorld.class
µÚÈý²½£¬
E:\>javah HelloWorld
µÃµ½
HelloWorld.h
µÚËIJ½£¬
±àдһ¸öCÎļþ
HelloWorldImp.c
µÚÎå²½£¬
ʹÓÃcl±àÒ ......

20¸ö·Ç³£ÓÐÓõÄJava³ÌÐòƬ¶Î

1. ×Ö·û´®ÓÐÕûÐ͵ÄÏ໥ת»»
¡¡¡¡Java´úÂë
¡¡¡¡String a = String.valueOf(2);   //integer to numeric string
¡¡¡¡int i = Integer.parseInt(a); //numeric string to an int
¡¡¡¡2. ÏòÎļþĩβÌí¼ÓÄÚÈÝ
¡¡¡¡Java´úÂë
¡¡¡¡BufferedWriter out = null;
¡¡¡¡try {
¡¡¡¡out = new BufferedWriter(new FileWr ......

Java·þÎñ¶Ë½ÓÊÜget·½Ê½´«Ë͵ĺº×ÖתÂë·½·¨

1.ÓÃnew String(request.getParameter("name").getBytes("ISO-8859-1"),"GBK") ·½Ê½½øÐÐתÂë
2.ÉèÖÃtomcat£ºÔÚtomcatµÄconfĿ¼ÏÂÕÒµ½server.xmlÎļþ£¬ÔÚConnector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000" ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ