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
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¿ ......
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 ......
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¨ ......
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» ......