Nets (langx-java 0.0.2 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 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 int`	`indexOf(CharSequence cs, char searchChar, int start)` Finds the first index in the `CharSequence` that matches the specified character.
`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 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
  - 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
  - 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)
```

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

isValidIpV6Address

isValidIpV6Address

isValidIpV4Address

indexOf

getByName

getByName

toSocketAddressString

toSocketAddressString

toAddressString

toAddressString

getHostname

addressesFromNetworkInterface