org.apache.commons.io

类 Charsets

java.lang.Object

org.apache.commons.io.Charsets

public class Charsets
extends Object

Charsets required of every implementation of the Java platform. From the Java documentation Standard charsets:

Every implementation of the Java platform is required to support the following character encodings. Consult the release documentation for your implementation to see if any other encodings are supported. Consult the release documentation for your implementation to see if any other encodings are supported.

• US-ASCII
  Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the Unicode character set.
• ISO-8859-1
  ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1.
• UTF-8
  Eight-bit Unicode Transformation Format.
• UTF-16BE
  Sixteen-bit Unicode Transformation Format, big-endian byte order.
• UTF-16LE
  Sixteen-bit Unicode Transformation Format, little-endian byte order.
• UTF-16
  Sixteen-bit Unicode Transformation Format, byte order specified by a mandatory initial byte-order mark (either order accepted on input, big-endian used on output.)

从以下版本开始:

2.3

另请参阅:

Standard charsets

字段概要

字段

限定符和类型	字段和说明
static Charset	ISO_8859_1 已过时。 Use Java 7's StandardCharsets
static Charset	US_ASCII 已过时。 Use Java 7's StandardCharsets
static Charset	UTF_16 已过时。 Use Java 7's StandardCharsets
static Charset	UTF_16BE 已过时。 Use Java 7's StandardCharsets
static Charset	UTF_16LE 已过时。 Use Java 7's StandardCharsets
static Charset	UTF_8 已过时。 Use Java 7's StandardCharsets

构造器概要

构造器

构造器和说明
Charsets()

方法概要

限定符和类型	方法和说明
static SortedMap<String,Charset>	requiredCharsets() Constructs a sorted map from canonical charset names to charset objects required of every implementation of the Java platform.
static Charset	toCharset(Charset charset) Returns the given Charset or the default Charset if the given Charset is null.
static Charset	toCharset(String charset) Returns a Charset for the named 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

ISO_8859_1

@Deprecated
public static final Charset ISO_8859_1

已过时。 Use Java 7's StandardCharsets

CharEncodingISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1.

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

US_ASCII

@Deprecated
public static final Charset US_ASCII

已过时。 Use Java 7's StandardCharsets

Seven-bit ASCII, also known as ISO646-US, also known as the Basic Latin block of the Unicode character set.

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

UTF_16

@Deprecated
public static final Charset UTF_16

已过时。 Use Java 7's StandardCharsets

Sixteen-bit Unicode Transformation Format, The byte order specified by a mandatory initial byte-order mark (either order accepted on input, big-endian used on output)

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

UTF_16BE

@Deprecated
public static final Charset UTF_16BE

已过时。 Use Java 7's StandardCharsets

Sixteen-bit Unicode Transformation Format, big-endian byte order.

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

UTF_16LE

@Deprecated
public static final Charset UTF_16LE

已过时。 Use Java 7's StandardCharsets

Sixteen-bit Unicode Transformation Format, little-endian byte order.

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

UTF_8

@Deprecated
public static final Charset UTF_8

已过时。 Use Java 7's StandardCharsets

Eight-bit Unicode Transformation Format.

Every implementation of the Java platform is required to support this character encoding.

另请参阅:

Standard charsets

构造器详细资料

Charsets

public Charsets()

方法详细资料

requiredCharsets

public static SortedMap<String,Charset> requiredCharsets()

Constructs a sorted map from canonical charset names to charset objects required of every implementation of the Java platform.

From the Java documentation Standard charsets:

返回:

An immutable, case-insensitive map from canonical charset names to charset objects.

从以下版本开始:

2.5

另请参阅:

Charset.availableCharsets()

toCharset

public static Charset toCharset(Charset charset)

Returns the given Charset or the default Charset if the given Charset is null.

参数:

charset - A charset or null.

返回:

the given Charset or the default Charset if the given Charset is null

toCharset

public static Charset toCharset(String charset)

Returns a Charset for the named charset. If the name is null, return the default Charset.

参数:

charset - The name of the requested charset, may be null.

返回:

a Charset for the named charset

抛出:

UnsupportedCharsetException - If the named charset is unavailable