Nets (langx-java 2.8.2 API)

java.lang.Object
- com.jn.langx.util.net.Nets

```
public class Nets
extends Object
```

字段概要

字段
限定符和类型	字段和说明
`static InetAddress`	`LOCALHOST` The `InetAddress` that represents the loopback address.
`static Inet4Address`	`LOCALHOST4` The `Inet4Address` that represents the IPv4 loopback address '127.0.0.1'
`static Inet6Address`	`LOCALHOST6` The `Inet6Address` that represents the IPv6 loopback address '::1'
`static NetworkInterface`	`LOOPBACK_IF` The loopback `NetworkInterface` of the current machine
`static int`	`SOMAXCONN` The SOMAXCONN value of the current machine.

构造器概要

构造器
构造器和说明

Nets()

构造器
构造器和说明
`Nets()`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static Enumeration<InetAddress>`	`addressesFromNetworkInterface(NetworkInterface intf)`
`static byte[]`	`createByteArrayFromIpAddressString(String ipAddressString)` Creates an byte[] based on an ipAddressString.
`static Set<InetAddress>`	`getAddresses()` Returns a `Set` of `InetAddress` that are non-loopback or mac.
`static Inet6Address`	`getByName(CharSequence ip)` Returns the `Inet6Address` representation of a `CharSequence` IP address.
`static Inet6Address`	`getByName(CharSequence ip, boolean ipv4Mapped)` Returns the `Inet6Address` representation of a `CharSequence` IP address.
`static String`	`getHostname(InetSocketAddress addr)` Returns InetSocketAddress#getHostString() if Java >= 7, or `InetSocketAddress.getHostName()` otherwise.
`static String`	`getLocalHostName()` Returns the local hostname.
`static String`	`getLocalIp()` Returns the local IP.
`static String`	`getMac(byte[] bytes)`
`static String`	`getMac(NetworkInterface networkInterface)`
`static Map<String,Set<InetAddress>>`	`getNetworkInterfaceAddresses()` Returns a `Map` of `InetAddress` per `NetworkInterface`.
`static Map<String,Set<InetAddress>>`	`getNetworkInterfaceAddresses(Predicate<NetworkInterface> networkInterfacePredicate, Predicate<InetAddress> inetAddressPredicate)`
`static List<NetworkInterface>`	`getNetworkInterfaces()`
`static List<NetworkInterface>`	`getNetworkInterfaces(Predicate<NetworkInterface> predicate)`
`static int`	`indexOf(CharSequence cs, char searchChar, int start)` Finds the first index in the `CharSequence` that matches the specified character.
`static boolean`	`isValidDomainAddress(String domain)` Checks validity of a domain name.
`static boolean`	`isValidEmailDomainAddress(String domain)` Checks the validity of the domain name used in an email.
`static boolean`	`isValidIpV4Address(String ip)` Takes a `String` and parses it to see if it is a valid IPV4 address.
`static boolean`	`isValidIpV6Address(CharSequence ip)`
`static boolean`	`isValidIpV6Address(String ip)`
`static boolean`	`isValidPort(int port)`
`static String`	`toAddressString(InetAddress ip)` Returns the `String` representation of an `InetAddress`.
`static String`	`toAddressString(InetAddress ip, boolean ipv4Mapped)` Returns the `String` representation of an `InetAddress`.
`static String`	`toSocketAddressString(InetSocketAddress addr)` Returns the `String` representation of an `InetSocketAddress`.
`static String`	`toSocketAddressString(String host, int port)` Returns the `String` representation of a host port combo.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - LOCALHOST4
```
public static final Inet4Address LOCALHOST4
```
    The Inet4Address that represents the IPv4 loopback address '127.0.0.1'
  - LOCALHOST6
```
public static final Inet6Address LOCALHOST6
```
    The Inet6Address that represents the IPv6 loopback address '::1'
  - LOCALHOST
```
public static final InetAddress LOCALHOST
```
    The InetAddress that represents the loopback address. If IPv6 stack is available, it will refer to LOCALHOST6. Otherwise, LOCALHOST4.
  - LOOPBACK_IF
```
public static final NetworkInterface LOOPBACK_IF
```
    The loopback NetworkInterface of the current machine
  - SOMAXCONN
```
public static final int SOMAXCONN
```
    The SOMAXCONN value of the current machine. If failed to get the value, 200 is used as a default value for Windows or 128 for others.
- 构造器详细资料
  - Nets
```
public Nets()
```
- 方法详细资料
  - isValidEmailDomainAddress
```
public static boolean isValidEmailDomainAddress(String domain)
```
    Checks the validity of the domain name used in an email. To be valid it should be either a valid host name, or an IP address wrapped in [].
    
    参数:
    
    domain - domain to check for validity
    
    返回:
    
    true if the provided string is a valid domain, false otherwise
  - isValidDomainAddress
```
public static boolean isValidDomainAddress(String domain)
```
    Checks validity of a domain name.
    
    参数:
    
    domain - the domain to check for validity
    
    返回:
    
    true if the provided string is a valid domain, false otherwise
  - isValidIpV6Address
```
public static boolean isValidIpV6Address(String ip)
```
  - isValidIpV6Address
```
public static boolean isValidIpV6Address(CharSequence ip)
```
  - isValidIpV4Address
```
public static boolean isValidIpV4Address(String ip)
```
    Takes a String and parses it to see if it is a valid IPV4 address.
    
    返回:
    
    true, if the string represents an IPV4 address in dotted notation, false otherwise
  - isValidPort
```
public static boolean isValidPort(int port)
```
  - indexOf
```
public static int indexOf(CharSequence cs,
                          char searchChar,
                          int start)
```
    Finds the first index in the CharSequence that matches the specified character.
    
    参数:
    
    cs - the CharSequence to be processed, not null
    
    searchChar - the char to be searched for
    
    start - the start index, negative starts at the string start
    
    返回:
    
    the index where the search char was found, -1 if char searchChar is not found or cs == null
  - getByName
```
public static Inet6Address getByName(CharSequence ip)
```
    Returns the Inet6Address representation of a CharSequence IP address.
    This method will treat all IPv4 type addresses as "IPv4 mapped" (see getByName(CharSequence, boolean))
    
    参数:
    
    ip - CharSequence IP address to be converted to a Inet6Address
    
    返回:
    
    Inet6Address representation of the ip or null if not a valid IP address.
  - getByName
```
public static Inet6Address getByName(CharSequence ip,
                                     boolean ipv4Mapped)
```
    Returns the Inet6Address representation of a CharSequence IP address.
    The ipv4Mapped parameter specifies how IPv4 addresses should be treated. "IPv4 mapped" format as defined in rfc 4291 section 2 is supported.
    参数:
    
    ip - CharSequence IP address to be converted to a Inet6Address
    ipv4Mapped -
    
    true To allow IPv4 mapped inputs to be translated into Inet6Address
    
    false Consider IPv4 mapped addresses as invalid.
    返回:
    
    Inet6Address representation of the ip or null if not a valid IP address.
  - toSocketAddressString
```
public static String toSocketAddressString(InetSocketAddress addr)
```
    Returns the String representation of an InetSocketAddress.
    The output does not include Scope ID.
    
    参数:
    
    addr - InetSocketAddress to be converted to an address string
    
    返回:
    
    String containing the text-formatted IP address
  - toSocketAddressString
```
public static String toSocketAddressString(String host,
                                           int port)
```
    Returns the String representation of a host port combo.
  - toAddressString
```
public static String toAddressString(InetAddress ip)
```
    Returns the String representation of an InetAddress.
    - Inet4Address results are identical to InetAddress.getHostAddress()
    - Inet6Address results adhere to rfc 5952 section 4
    The output does not include Scope ID.
    参数:
    
    ip - InetAddress to be converted to an address string
    
    返回:
    
    String containing the text-formatted IP address
  - toAddressString
```
public static String toAddressString(InetAddress ip,
                                     boolean ipv4Mapped)
```
    Returns the String representation of an InetAddress.
    - Inet4Address results are identical to InetAddress.getHostAddress()
    - Inet6Address results adhere to rfc 5952 section 4 if ipv4Mapped is false. If ipv4Mapped is true then "IPv4 mapped" format from rfc 4291 section 2 will be supported. The compressed result will always obey the compression rules defined in rfc 5952 section 4
    The output does not include Scope ID.
    参数:
    
    ip - InetAddress to be converted to an address string
    ipv4Mapped -
    
    true to stray from strict rfc 5952 and support the "IPv4 mapped" format defined in rfc 4291 section 2 while still following the updated guidelines in rfc 5952 section 4
    
    false to strictly follow rfc 5952
    返回:
    
    String containing the text-formatted IP address
  - getHostname
```
public static String getHostname(InetSocketAddress addr)
```
    Returns InetSocketAddress#getHostString() if Java >= 7, or InetSocketAddress.getHostName() otherwise.
    
    参数:
    
    addr - The address
    
    返回:
    
    the host string
  - addressesFromNetworkInterface
```
public static Enumeration<InetAddress> addressesFromNetworkInterface(NetworkInterface intf)
```
  - createByteArrayFromIpAddressString
```
public static byte[] createByteArrayFromIpAddressString(String ipAddressString)
```
    Creates an byte[] based on an ipAddressString. No error handling is performed here.
  - getNetworkInterfaceAddresses
```
public static Map<String,Set<InetAddress>> getNetworkInterfaceAddresses()
```
    Returns a Map of InetAddress per NetworkInterface.
  - getNetworkInterfaceAddresses
```
public static Map<String,Set<InetAddress>> getNetworkInterfaceAddresses(@Nullable
                                                                        Predicate<NetworkInterface> networkInterfacePredicate,
                                                                        @Nullable
                                                                        Predicate<InetAddress> inetAddressPredicate)
```
  - getNetworkInterfaces
```
public static List<NetworkInterface> getNetworkInterfaces()
```
  - getNetworkInterfaces
```
public static List<NetworkInterface> getNetworkInterfaces(Predicate<NetworkInterface> predicate)
```
  - getMac
```
@Nullable
public static String getMac(@NonNull
                                       NetworkInterface networkInterface)
                                throws SocketException
```
    抛出:
    
    SocketException
  - getMac
```
public static String getMac(@NonNull
                            byte[] bytes)
```
  - getAddresses
```
public static Set<InetAddress> getAddresses()
```
    Returns a Set of InetAddress that are non-loopback or mac.
  - getLocalHostName
```
public static String getLocalHostName()
                               throws UnknownHostException
```
    Returns the local hostname. It loops through the network interfaces and returns the first non loopback hostname
    
    抛出:
    
    UnknownHostException
  - getLocalIp
```
public static String getLocalIp()
                         throws UnknownHostException
```
    Returns the local IP. It loops through the network interfaces and returns the first non loopback address
    
    抛出:
    
    UnknownHostException

类 Nets

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

LOCALHOST4

LOCALHOST6

LOCALHOST

LOOPBACK_IF

SOMAXCONN

构造器详细资料

Nets

方法详细资料

isValidEmailDomainAddress

isValidDomainAddress

isValidIpV6Address

isValidIpV6Address

isValidIpV4Address

isValidPort

indexOf

getByName

getByName

toSocketAddressString

toSocketAddressString

toAddressString

toAddressString

getHostname

addressesFromNetworkInterface

createByteArrayFromIpAddressString

getNetworkInterfaceAddresses

getNetworkInterfaceAddresses

getNetworkInterfaces

getNetworkInterfaces

getMac

getMac

getAddresses

getLocalHostName

getLocalIp