📅  最后修改于: 2023-12-03 15:01:51.683000             🧑  作者: Mango
在Java中,Charset类用于表示字符集,并提供了一些方法可用于字符集的编码和解码操作。其中,availableCharsets()方法是获取Java虚拟机中支持的全部字符集的静态方法。
public static SortedMap<String, Charset> availableCharsets()
返回一个SortedMap对象,其中包含了Java虚拟机中支持的全部字符集。
import java.nio.charset.Charset;
import java.util.SortedMap;
public class CharsetExample {
public static void main(String[] args) {
// 获取全部字符集
SortedMap<String, Charset> charsets = Charset.availableCharsets();
// 遍历输出字符集
for (String name : charsets.keySet()) {
System.out.println(name);
}
}
}
Big5
Big5-HKSCS
CESU-8
EUC-JP
EUC-KR
GB18030
GB2312
GBK
IBM-Thai
IBM00858
IBM01140
IBM01141
IBM01142
IBM01143
IBM01144
IBM01145
IBM01146
IBM01147
IBM01148
IBM01149
IBM037
IBM1026
IBM1047
IBM273
IBM277
IBM278
IBM280
IBM284
IBM285
IBM297
IBM437
IBM500
IBM775
IBM850
IBM852
IBM855
IBM857
IBM858
IBM860
IBM861
IBM862
IBM863
IBM864
IBM865
IBM866
IBM868
IBM869
IBM870
IBM871
IBM918
ISO-2022-CN
ISO-2022-JP
ISO-2022-JP-2
ISO-2022-KR
ISO-8859-1
ISO-8859-13
ISO-8859-15
ISO-8859-2
ISO-8859-3
ISO-8859-4
ISO-8859-5
ISO-8859-6
ISO-8859-7
ISO-8859-8
ISO-8859-9
JIS_X0201
JIS_X0212-1990
KOI8-R
KOI8-U
Shift_JIS
TIS-620
US-ASCII
UTF-16
UTF-16BE
UTF-16LE
UTF-8
windows-1250
windows-1251
windows-1252
windows-1253
windows-1254
windows-1255
windows-1256
windows-1257
windows-1258
windows-31j
x-Big5-HKSCS-2001
x-Big5-Solaris
x-IBM1006
x-IBM1025
x-IBM1046
x-IBM1097
x-IBM1098
x-IBM1112
x-IBM1122
x-IBM1123
x-IBM1124
x-IBM1381
x-IBM1383
x-IBM33722
x-IBM737
x-IBM833
x-IBM856
x-IBM874
x-IBM875
x-IBM921
x-IBM922
x-IBM942
x-IBM942C
x-IBM943
x-IBM943C
x-IBM948
x-IBM949
x-IBM949C
x-IBM950
x-IBM964
x-IBM970
x-ISCII91
x-ISO-2022-CN-CNS
x-ISO-2022-CN-GB
x-Johab
x-MS932_0213
x-MS950-HKSCS
x-MS950-HKSCS-XP
x-MacArabic
x-MacCentralEurope
x-MacCroatian
x-MacCyrillic
x-MacDingbat
x-MacGreek
x-MacHebrew
x-MacIceland
x-MacRoman
x-MacRomania
x-MacSymbol
x-MacThai
x-MacTurkish
x-MacUkraine
x-PCK
x-SJIS_0213
x-euc-jp-linux
x-iso-8859-11
x-mswin-936
x-windows-50220
x-windows-50221
x-windows-874
x-windows-949
x-windows-950
以上代码会遍历Java虚拟机中支持的全部字符集,并将它们的名称依次输出。我们可以看到,Java支持许多字符集,包括了各种国际标准和特定厂商的扩展。
在实际开发中,我们可以通过availableCharsets()方法来了解Java支持哪些字符集,以便选择合适的字符集进行编码和解码操作。