public class IpUtil { |
/*验证IP是否属于某个IP段 |
* |
* ipSection IP段(以'-'分隔) |
* ip 所验证的IP号码 |
* |
*/ |
public static boolean ipExistsInRange(String ip,String ipSection) { |
ipSection = ipSection.trim(); |
ip = ip.trim(); |
int idx = ipSection.indexOf( '-' ); |
String beginIP = ipSection.substring( 0 , idx); |
String endIP = ipSection.substring(idx + 1 ); |
return getIp2long(beginIP)<=getIp2long(ip) &&getIp2long(ip)<=getIp2long(endIP); |
} |
public static long getIp2long(String ip) { |
ip = ip.trim(); |
String[] ips = ip.split( "\\." ); |
long ip2long = 0L; |
for ( int i = 0 ; i < 4 ; ++i) { |
ip2long = ip2long << 8 | Integer.parseInt(ips[i]); |
} |
return ip2long; |
} |
public static long getIp2long2(String ip) { |
ip = ip.trim(); |
String[] ips = ip.split( "\\." ); |
long ip1 = Integer.parseInt(ips[ 0 ]); |
long ip2 = Integer.parseInt(ips[ 1 ]); |
long ip3 = Integer.parseInt(ips[ 2 ]); |
long ip4 = Integer.parseInt(ips[ 3 ]); |
long ip2long =1L* ip1 * 256 * 256 * 256 + ip2 * 256 * 256 + ip3 * 256 + ip4; |
return ip2long; |
} |
public static void main(String[] args){ |
//10.10.10.116 是否属于固定格式的IP段10.10.1.00-10.10.255.255 |
String ip= "10.10.10.116" ; |
String ipSection= "10.10.1.00-10.10.255.255" ; |
boolean exists=ipExistsInRange(ip,ipSection); |
System.out.println(exists); |
System.out.println(getIp2long(ip)); |
System.out.println(getIp2long2(ip)); |
} |
} |
中级程序员
by: LookForword 发表于:2016-12-10 23:46:06 顶(0) | 踩(0) 回复
可以运行的,运行成功!
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