com.alibaba.druid.support.http.util

类 IPAddress

java.lang.Object

com.alibaba.druid.support.http.util.IPAddress

所有已实现的接口:

Cloneable

public class IPAddress
extends Object
implements Cloneable

This class represents an IP address represented by an 32 bits integer value. Dotted-decimal notation divides the 32-bit Internet address into four 8-bit (byte) fields and specifies the value of each field independently as a decimal number with the fields separated by dots :

10010001 . 00001010 . 00100010 . 00000011
145 10 34 3

-> 145.10.34.3


IP address are classified into three classes :

class A:

bit# 0 1 7 8 31
+--+-------------------+------------------------------+
|0 | | |
+--+-------------------+------------------------------+
<-- network number --> <------- host number -------->


class B:

bit# 0 2 15 16 31
+--+-------------------------+------------------------+
|10| | |
+--+-------------------------+------------------------+
<----- network number -----> <---- host number ----->


class C:

bit# 0 3 23 24 31
+---+-----------------------------+-------------------+
|110| | |
+---+-----------------------------+-------------------+
<------- network number --------> <-- host number -->


版本:

1.0

作者:

Marcel Dullaart

构造器概要

构造器

构造器和说明
IPAddress(int address) Constructor.
IPAddress(String ipAddressStr) Constructor.

方法概要

方法

限定符和类型	方法和说明
Object	clone() Clone the encapsulated IP address.
boolean	equals(Object another) Compare the specified IP address to the encapsulated one.
int	getIPAddress() Return the integer representation of the IP address.
boolean	isClassA() Check if the IP address is belongs to a Class A IP address.
boolean	isClassB() Check if the IP address is belongs to a Class B IP address.
boolean	isClassC() Check if the IP address is belongs to a Class C IP address.
static void	main(String[] args)
String	toString() Return the string representation of the IP Address following the common decimal-dotted notation xxx.xxx.xxx.xxx.

从类继承的方法 java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

IPAddress

public IPAddress(String ipAddressStr)

Constructor.

参数:

ip - String representation of the IP address. The format of the ip's string representation must follow the decimal-dotted notation xxx.xxx.xxx.xxx.

抛出:

InvalidIPAddressException - Throws this exception when the specified string doesn't represent a valid IP address.

IPAddress

public IPAddress(int address)

Constructor.

参数:

ip - Binary representation of the IP address.

方法详细资料

getIPAddress

public final int getIPAddress()

Return the integer representation of the IP address.

返回:

The IP address.

toString

public String toString()

Return the string representation of the IP Address following the common decimal-dotted notation xxx.xxx.xxx.xxx.

覆盖:

toString 在类中 Object

返回:

Return the string representation of the IP address.

isClassA

public final boolean isClassA()

Check if the IP address is belongs to a Class A IP address.

返回:

Return true if the encapsulated IP address belongs to a class A IP address, otherwise returne false.

isClassB

public final boolean isClassB()

Check if the IP address is belongs to a Class B IP address.

返回:

Return true if the encapsulated IP address belongs to a class B IP address, otherwise returne false.

isClassC

public final boolean isClassC()

Check if the IP address is belongs to a Class C IP address.

返回:

Return true if the encapsulated IP address belongs to a class C IP address, otherwise returne false.

equals

public boolean equals(Object another)

Compare the specified IP address to the encapsulated one.

覆盖:

equals 在类中 Object

参数:

another - The IP address to be compared.

返回:

Return true if the encapsulated IP address is the same as the specified one, otherwise return false.

clone

public Object clone()

Clone the encapsulated IP address.

覆盖:

clone 在类中 Object

返回:

Return a new object representing the encapsulated IP address.

main

public static void main(String[] args)