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

java ipµØÖ·×ª»»Îª³¤ÕûÐÍ

java ipµØÖ·×ª»»Îª³¤ÕûÐÍ£»
public class Util {
   
     /**
     * ×Ö·û´®ipת»»Îªlong
     * @param ×Ö·û´®ip
     * @return
     */
    public static long getStringIpToLong(String ip) { 
        String[] ips = ip.split("[.]"); 
        long num =  16777216L*Long.parseLong(ips[0]) +
65536L*Long.parseLong(ips[1]) + 256*Long.parseLong(ips[2]) +
Long.parseLong(ips[3]); 
        return num; 
    } 
     
    /**
     * ³¤ÕûÐÍipת»»Îªstring
     * @param longÐÍip
     * @return
     */ 
    public static String getLongIpToString(long ipLong) {  
       
        long mask[] = {0x000000FF,0x0000FF00,0x00FF0000,0xFF000000}; 
        long num = 0; 
        StringBuffer ipInfo = new StringBuffer(); 
        for(int i=0;i<4;i++){ 
            num = (ipLong & mask[i])>>(i*8); 
            if(i>0) ipInfo.insert(0,"."); 
            ipInfo.insert(0,Long.toString(num,10)); 
        } 
        return ipInfo.toString(); 
    } 
}


Ïà¹ØÎĵµ£º

javaÖеÄÈ«¾Ö±äÁ¿Óë¾Ö²¿±äÁ¿

È«¾Ö±äÁ¿£ºÒ²½Ð³ÉÔ±±äÁ¿£¬ÊÇÖ¸ÔÚÀàÖж¨ÒåµÄ±äÁ¿£»ËüÔÚÕû¸öÀàÖж¼ÓÐЧ
               È«¾Ö±äÁ¿ÓÖ¿É·ÖΪ£ºÀà±äÁ¿ºÍʵÀý±äÁ¿
               1.Àà±äÁ¿£ºÓֽо²Ì¬±äÁ¿  ......

Java¶àÏ̱߳à³ÌÏê½â

Ò»¡¢Àí½â¶àÏß³Ì
    ¶àÏß³ÌÊÇÕâÑùÒ»ÖÖ»úÖÆ£¬ËüÔÊÐíÔÚ³ÌÐòÖв¢·¢Ö´Ðжà¸öÖ¸ÁîÁ÷£¬Ã¿¸öÖ¸ÁîÁ÷¶¼³ÆÎªÒ»¸öỊ̈߳¬±Ë´Ë¼ä»¥Ïà¶ÀÁ¢¡£Ïß³ÌÓÖ³ÆÎªÇáÁ¿¼¶½ø³Ì£¬ËüºÍ½ø³ÌÒ»ÑùÓµÓжÀÁ¢µÄÖ´ÐпØÖÆ£¬ÓɲÙ×÷ϵͳ¸ºÔðµ÷¶È£¬Çø±ðÔÚÓÚÏß³ÌûÓжÀÁ¢µÄ´æ´¢¿Õ¼ä£¬¶øÊǺÍËùÊô½ø³ÌÖÐµÄÆäËüÏ̹߳²ÏíÒ»¸ö´æ´¢¿Õ¼ä£¬ÕâʹµÃÏ̼߳äµÄͨ ......

java IO

1.InputStreamºÍOutputStreamÊÇÓÃÓÚ¶Á»òдµ¥¸ö×Ö½Ú»òÕß×Ö½ÚÊý×飬ÎÒÃǺÜÉÙÓõ½ËüÃǵķ½·¨£¬ËüÃÇÖ®ËùÒÔ´æÔÚÊÇÒòΪ±ðµÄÀà¿ÉÒÔʹÓÃËüÃÇ£¬ÒÔ±ãÌṩ¸üÓÐÓõĽӿڡ£Òò´Ë£¬ÎÒÃǺÜÉÙʹÓõ¥Ò»µÄÀàÀ´´´½¨Á÷¶ÔÏ󣬶øÊÇͨ¹ýµþºÏ¶à¸ö¶ÔÏóÀ´ÌṩËùÆÚÍûµÄ¹¦ÄÜ¡£
2.FilterInputStreamºÍFilterOutputStreamÊÇÓÃÀ´ÌṩװÊÎÆ÷Àà½Ó¿ÚÒÔ¿ØÖÆÌض¨ ......

JAVAÍøÂç±à³Ì

ÍøÂçµÄ¸ÅÄî:Ï໥Á¬½Ó,¶ÀÁ¢×ÔÖ÷
ÍøÂçÓë·Ö²¼Ê½¼¯ÈºÏµÍ³µÄÇø±ð£ºÃ¿¸ö½Úµã¶¼ÊÇһ̨¼ÆËã»ú£¬¶ø²»ÊǸ÷ÖÖ¼ÆËã»úÄÚ²¿µÄ¹¦ÄÜÉ豸¡£
Ip:¾ßÓÐÈ«ÇòΨһÐÔ£¬Ïà¶ÔÓÚinternet£¬IPΪÂß¼­µØÖ·£¬TCP/IPÍøÂçÖеÄÿ̨¼ÆËã»ú¶¼ÓÐΨһµÄµØÖ·--IPµØÖ·. Ψһ±êʾһ̨Ö÷»ú
ÔÚJavaÖÐ,ÓÐÒ»¸öÓÃÀ´´æ´¢internetµØÖ·µÄÀà½ÐInetAddress.
Àý:»ñÈ¡±¾» ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ