com.github.shoothzj.javatool.util

Class Ipv4Util

java.lang.Object

com.github.shoothzj.javatool.util.Ipv4Util

public class Ipv4Util
extends Object

Constructor Summary

Constructors

Constructor and Description
Ipv4Util()

Method Summary

Modifier and Type	Method and Description
static String	convert2Cidr(String netSeg, String netMask) 网段和掩码转化为CIDR
static String	convertIp2Cidr(String ip, String netMask)
static List<IfCfg>	getIfCfgs()
static String	getIp(String eth) 获取网卡对应的ip地址,支持虚拟ip ex: Ipv4Util.getIp("eth0"); ex: Ipv4Util.getIp("eth0:virtual");
static int	getPrefixLen(String netMask)
static long	ip2Num(String ip)
static boolean	isInCidr(String ip, String cidr)
static boolean	isValidIp(String ip)
static boolean	isValidNetMask(String netMask)
static String	num2Ip(long num)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Ipv4Util

public Ipv4Util()

Method Detail

getIp

public static String getIp(String eth)

获取网卡对应的ip地址,支持虚拟ip ex: Ipv4Util.getIp("eth0"); ex: Ipv4Util.getIp("eth0:virtual");

Parameters:

eth -

Returns:

getIfCfgs

public static List<IfCfg> getIfCfgs()

isInCidr

public static boolean isInCidr(String ip,
                               String cidr)

convertIp2Cidr

public static String convertIp2Cidr(String ip,
                                    String netMask)

convert2Cidr

public static String convert2Cidr(String netSeg,
                                  String netMask)

网段和掩码转化为CIDR

Parameters:

netSeg -

netMask -

Returns:

getPrefixLen

public static int getPrefixLen(String netMask)

isValidIp

public static boolean isValidIp(String ip)

isValidNetMask

public static boolean isValidNetMask(String netMask)

ip2Num

public static long ip2Num(String ip)

num2Ip

public static String num2Ip(long num)