CharsetUtil (Netty 4.0.56.Final API文档 - 即时通讯网(52im.net))

java.lang.Object
- io.netty.util.CharsetUtil

```
public final class CharsetUtil
extends java.lang.Object
```
A utility class that provides various common operations and constants related with Charset and its relevant classes.

字段概要

字段
限定符和类型	字段和说明
`static java.nio.charset.Charset`	`ISO_8859_1` ISO Latin Alphabet No. 1, as known as `ISO-LATIN-1`
`static java.nio.charset.Charset`	`US_ASCII` 7-bit ASCII, as known as ISO646-US or the Basic Latin block of the Unicode character set
`static java.nio.charset.Charset`	`UTF_16` 16-bit UTF (UCS Transformation Format) whose byte order is identified by an optional byte-order mark
`static java.nio.charset.Charset`	`UTF_16BE` 16-bit UTF (UCS Transformation Format) whose byte order is big-endian
`static java.nio.charset.Charset`	`UTF_16LE` 16-bit UTF (UCS Transformation Format) whose byte order is little-endian
`static java.nio.charset.Charset`	`UTF_8` 8-bit UTF (UCS Transformation Format)

方法概要

方法
限定符和类型	方法和说明
`static java.nio.charset.CharsetDecoder`	`decoder(java.nio.charset.Charset charset)` Returns a cached thread-local `CharsetDecoder` for the specified `Charset`.
`static java.nio.charset.CharsetDecoder`	`decoder(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction codingErrorAction)` Returns a new `CharsetDecoder` for the `Charset` with the specified error action.
`static java.nio.charset.CharsetDecoder`	`decoder(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction malformedInputAction, java.nio.charset.CodingErrorAction unmappableCharacterAction)` Returns a new `CharsetDecoder` for the `Charset` with specified error actions.
`static java.nio.charset.CharsetEncoder`	`encoder(java.nio.charset.Charset charset)` Returns a cached thread-local `CharsetEncoder` for the specified `Charset`.
`static java.nio.charset.CharsetEncoder`	`encoder(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction codingErrorAction)` Returns a new `CharsetEncoder` for the `Charset` with the specified error action.
`static java.nio.charset.CharsetEncoder`	`encoder(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction malformedInputAction, java.nio.charset.CodingErrorAction unmappableCharacterAction)` Returns a new `CharsetEncoder` for the `Charset` with specified error actions.
`static java.nio.charset.CharsetDecoder`	`getDecoder(java.nio.charset.Charset charset)` 已过时。 Use `decoder(Charset)`.
`static java.nio.charset.CharsetEncoder`	`getEncoder(java.nio.charset.Charset charset)` 已过时。 Use `encoder(Charset)`.

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
  - UTF_16
```
public static final java.nio.charset.Charset UTF_16
```
    16-bit UTF (UCS Transformation Format) whose byte order is identified by an optional byte-order mark
  - UTF_16BE
```
public static final java.nio.charset.Charset UTF_16BE
```
    16-bit UTF (UCS Transformation Format) whose byte order is big-endian
  - UTF_16LE
```
public static final java.nio.charset.Charset UTF_16LE
```
    16-bit UTF (UCS Transformation Format) whose byte order is little-endian
  - UTF_8
```
public static final java.nio.charset.Charset UTF_8
```
    8-bit UTF (UCS Transformation Format)
  - ISO_8859_1
```
public static final java.nio.charset.Charset ISO_8859_1
```
    ISO Latin Alphabet No. 1, as known as ISO-LATIN-1
  - US_ASCII
```
public static final java.nio.charset.Charset US_ASCII
```
    7-bit ASCII, as known as ISO646-US or the Basic Latin block of the Unicode character set
- 方法详细资料
  - getEncoder
```
@Deprecated
public static java.nio.charset.CharsetEncoder getEncoder(java.nio.charset.Charset charset)
```
    已过时。 Use encoder(Charset).
  - encoder
```
public static java.nio.charset.CharsetEncoder encoder(java.nio.charset.Charset charset,
                                      java.nio.charset.CodingErrorAction malformedInputAction,
                                      java.nio.charset.CodingErrorAction unmappableCharacterAction)
```
    Returns a new CharsetEncoder for the Charset with specified error actions.
    
    参数:
    charset - The specified charset
    malformedInputAction - The encoder's action for malformed-input errors
    unmappableCharacterAction - The encoder's action for unmappable-character errors
    
    返回:
    The encoder for the specified charset
  - encoder
```
public static java.nio.charset.CharsetEncoder encoder(java.nio.charset.Charset charset,
                                      java.nio.charset.CodingErrorAction codingErrorAction)
```
    Returns a new CharsetEncoder for the Charset with the specified error action.
    
    参数:
    charset - The specified charset
    codingErrorAction - The encoder's action for malformed-input and unmappable-character errors
    
    返回:
    The encoder for the specified charset
  - encoder
```
public static java.nio.charset.CharsetEncoder encoder(java.nio.charset.Charset charset)
```
    Returns a cached thread-local CharsetEncoder for the specified Charset.
    
    参数:
    charset - The specified charset
    
    返回:
    The encoder for the specified charset
  - getDecoder
```
@Deprecated
public static java.nio.charset.CharsetDecoder getDecoder(java.nio.charset.Charset charset)
```
    已过时。 Use decoder(Charset).
  - decoder
```
public static java.nio.charset.CharsetDecoder decoder(java.nio.charset.Charset charset,
                                      java.nio.charset.CodingErrorAction malformedInputAction,
                                      java.nio.charset.CodingErrorAction unmappableCharacterAction)
```
    Returns a new CharsetDecoder for the Charset with specified error actions.
    
    参数:
    charset - The specified charset
    malformedInputAction - The decoder's action for malformed-input errors
    unmappableCharacterAction - The decoder's action for unmappable-character errors
    
    返回:
    The decoder for the specified charset
  - decoder
```
public static java.nio.charset.CharsetDecoder decoder(java.nio.charset.Charset charset,
                                      java.nio.charset.CodingErrorAction codingErrorAction)
```
    Returns a new CharsetDecoder for the Charset with the specified error action.
    
    参数:
    charset - The specified charset
    codingErrorAction - The decoder's action for malformed-input and unmappable-character errors
    
    返回:
    The decoder for the specified charset
  - decoder
```
public static java.nio.charset.CharsetDecoder decoder(java.nio.charset.Charset charset)
```
    Returns a cached thread-local CharsetDecoder for the specified Charset.
    
    参数:
    charset - The specified charset
    
    返回:
    The decoder for the specified charset

类 CharsetUtil

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

UTF_16

UTF_16BE

UTF_16LE

UTF_8

ISO_8859_1

US_ASCII

方法详细资料

getEncoder

encoder

encoder

encoder

getDecoder

decoder

decoder

decoder