Java环境配置与系统信息获取-优快云博客

本文介绍了一个Java程序，该程序能够获取操作系统的环境变量、系统属性、支持的字符集编码以及默认语言等信息。

下面的代码可以获取系统的环境变量，操作系统、处理器、编码和语言等各种信息。

import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public class SystemProperty {
	public static void main(String[] args) {
		System.out.println("****************getenv**************");
		int index = 1;
		Map<String, String> map = System.getenv();
		Set<String> set = map.keySet();
		Iterator<String> iterator = set.iterator();
		String temp = "";
		while (iterator.hasNext()) {
			temp = (String) iterator.next();
			System.out.println((index++) + "\t" + temp.toLowerCase() + "="
					+ map.get(temp));
		}
		System.out.println("****************getProperties**************");
		Properties properties = System.getProperties();
		Set<Object> pSet = properties.keySet();
		Iterator<Object> pIterator = pSet.iterator();
		index = 1;
		while (pIterator.hasNext()) {
			temp = (String) pIterator.next();
			System.out.println((index++) + "\t" + temp + "="
					+ properties.getProperty(temp));
		}
		System.out.println("*******获得Java支持编码集合：*********");
		set = Charset.availableCharsets().keySet();
		iterator = set.iterator();
		index = 1;
		while (iterator.hasNext()) {
			String string = (String) iterator.next();
			System.out.println((index++) + "\t" + string);
		}
		System.out.println("*******获获得系统默认编码：*********");
		// Locale.setDefault(new Locale("en", "us"));
		Charset charset = Charset.defaultCharset();
		String name = charset.name();
		String displayName = charset.displayName();
		System.out.println("name=" + name + ",displayName=" + displayName);
		Locale defaultL = Locale.getDefault();
		System.out.println("系统默认语言：" + defaultL.getLanguage() + "\t"
				+ defaultL.getDisplayCountry() + "\t" + defaultL.getCountry());
		Locale[] locale = Locale.getAvailableLocales();
		index = 1;
		for (Locale l : locale) {
			System.out.println("--------------" + (index++)
					+ "----------------");
			System.out.println(l.getCountry() + "\t" + l.getDisplayCountry());
			System.out.println(l.getLanguage() + "\t" + l.getDisplayLanguage());
			System.out.println(l.getISO3Country());
			System.out.println(l.getDisplayName());
			System.out.println(l.getVariant() + "\t" + l.getDisplayVariant());
		}
	}
}

其中，file.encoding=GBK指的是你的java源码的编码，如果你将源码保存为UTF-8，那么file.encoding=UTF-8.

运行程序后，结果如下：

****************getenv**************
1    userprofile=C:\Documents and Settings\Administrator
2    pathext=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
3    java_home=C:\Program Files\Java\jdk1.6.0_13
4    temp=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp
5    systemdrive=C:
6    programfiles=C:\Program Files
7    path=C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\MySQL\MySQL Server 5.1\bin;.;C:\Program Files\Java\jdk1.6.0_13\bin;C:\Program Files\StormII\Codec;C:\Program Files\StormII;C:\Program Files\erl5.8.4\bin;;C:\Program Files\eclipse;
8    homedrive=C:
9    processor_revision=170a
10    clientname=Console
11    userdomain=PC-20100116102
12    allusersprofile=C:\Documents and Settings\All Users
13    processor_identifier=x86 Family 6 Model 23 Stepping 10, GenuineIntel
14    sessionname=Console
15    tmp=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp
16    commonprogramfiles=C:\Program Files\Common Files
17    =::=::\
18    logonserver=\\PC-20100116102
19    processor_architecture=x86
20    fp_no_host_check=NO
21    os=Windows_NT
22    homepath=\Documents and Settings\Administrator
23    vs100comntools=D:\Program Files\vs2010\Common7\Tools\
24    processor_level=6
25    classpath=.;C:\Program Files\Java\jdk1.6.0_13\lib\da.jar;C:\Program Files\Java\jdk1.6.0_13\lib\tools.jar;C:\sqlserver2005jar\sqljdbc.jar;C:\Program Files\Java\jre6\lib\rt.jar;
26    catalina_home=E:\tomcat
27    lib=C:\Program Files\SQLXML 4.0\bin\
28    computername=PC-20100116102
29    windir=C:\WINDOWS
30    systemroot=C:\WINDOWS
31    number_of_processors=2
32    username=Administrator
33    comspec=C:\WINDOWS\system32\cmd.exe
34    appdata=C:\Documents and Settings\Administrator\Application Data
****************getProperties**************
1    java.runtime.name=Java(TM) SE Runtime Environment
2    sun.boot.library.path=C:\Program Files\Java\jdk1.6.0_13\jre\bin
3    java.vm.version=11.3-b02
4    java.vm.vendor=Sun Microsystems Inc.
5    java.vendor.url=http://java.sun.com/
6    path.separator=;
7    java.vm.name=Java HotSpot(TM) Client VM
8    file.encoding.pkg=sun.io
9    sun.java.launcher=SUN_STANDARD
10    user.country=CN
11    sun.os.patch.level=Service Pack 3
12    java.vm.specification.name=Java Virtual Machine Specification
13    user.dir=E:\ECLIPSEPROJECT\EclipseProject\core
14    java.runtime.version=1.6.0_13-b03
15    java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
16    java.endorsed.dirs=C:\Program Files\Java\jdk1.6.0_13\jre\lib\endorsed
17    os.arch=x86
18    java.io.tmpdir=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\
19    line.separator=

20    java.vm.specification.vendor=Sun Microsystems Inc.
21    user.variant=
22    os.name=Windows XP
23    sun.jnu.encoding=GBK
24    java.library.path=C:\Program Files\Java\jdk1.6.0_13\jre\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Common Files\Thunder Network\KanKan\Codecs;C:\Program Files\MySQL\MySQL Server 5.1\bin;.;C:\Program Files\Java\jdk1.6.0_13\bin;C:\Program Files\erl5.8.4\bin;;C:\Program Files\eclipse;
25    java.specification.name=Java Platform API Specification
26    java.class.version=50.0
27    sun.management.compiler=HotSpot Client Compiler
28    os.version=5.1
29    user.home=C:\Documents and Settings\Administrator
30    user.timezone=
31    java.awt.printerjob=sun.awt.windows.WPrinterJob
32    file.encoding=GBK
33    java.specification.version=1.6
34    java.class.path=E:\ECLIPSEPROJECT\EclipseProject\core\bin;D:\libforjava\dom4j\dom4j-1.6.1.jar;D:\libforjava\dom4j\jaxen-1.1-beta-6.jar
35    user.name=Administrator
36    java.vm.specification.version=1.0
37    java.home=C:\Program Files\Java\jdk1.6.0_13\jre
38    sun.arch.data.model=32
39    user.language=zh
40    java.specification.vendor=Sun Microsystems Inc.
41    awt.toolkit=sun.awt.windows.WToolkit
42    java.vm.info=mixed mode
43    java.version=1.6.0_13
44    java.ext.dirs=C:\Program Files\Java\jdk1.6.0_13\jre\lib\ext;C:\WINDOWS\Sun\Java\lib\ext
45    sun.boot.class.path=C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\lib\ext\dnsns.jar;C:\Program Files\Java\jre6\lib\ext\localedata.jar;C:\Program Files\Java\jre6\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jre6\lib\ext\sunmscapi.jar;C:\Program Files\Java\jre6\lib\ext\sunpkcs11.jar
46    java.vendor=Sun Microsystems Inc.
47    file.separator=\
48    java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport.cgi
49    sun.io.unicode.encoding=UnicodeLittle
50    sun.cpu.endian=little
51    sun.desktop=windows
52    sun.cpu.isalist=pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86
*******获得Java支持编码集合：*********
1    Big5
2    Big5-HKSCS
3    EUC-JP
4    EUC-KR
5    GB18030
6    GB2312
7    GBK
8    IBM-Thai
9    IBM00858
10    IBM01140
11    IBM01141
12    IBM01142
13    IBM01143
14    IBM01144
15    IBM01145
16    IBM01146
17    IBM01147
18    IBM01148
19    IBM01149
20    IBM037
21    IBM1026
22    IBM1047
23    IBM273
24    IBM277
25    IBM278
26    IBM280
27    IBM284
28    IBM285
29    IBM297
30    IBM420
31    IBM424
32    IBM437
33    IBM500
34    IBM775
35    IBM850
36    IBM852
37    IBM855
38    IBM857
39    IBM860
40    IBM861
41    IBM862
42    IBM863
43    IBM864
44    IBM865
45    IBM866
46    IBM868
47    IBM869
48    IBM870
49    IBM871
50    IBM918
51    ISO-2022-CN
52    ISO-2022-JP
53    ISO-2022-JP-2
54    ISO-2022-KR
55    ISO-8859-1
56    ISO-8859-13
57    ISO-8859-15
58    ISO-8859-2
59    ISO-8859-3
60    ISO-8859-4
61    ISO-8859-5
62    ISO-8859-6
63    ISO-8859-7
64    ISO-8859-8
65    ISO-8859-9
66    JIS_X0201
67    JIS_X0212-1990
68    KOI8-R
69    KOI8-U
70    Shift_JIS
71    TIS-620
72    US-ASCII
73    UTF-16
74    UTF-16BE
75    UTF-16LE
76    UTF-32
77    UTF-32BE
78    UTF-32LE
79    UTF-8
80    windows-1250
81    windows-1251
82    windows-1252
83    windows-1253
84    windows-1254
85    windows-1255
86    windows-1256
87    windows-1257
88    windows-1258
89    windows-31j
90    x-Big5-Solaris
91    x-euc-jp-linux
92    x-EUC-TW
93    x-eucJP-Open
94    x-IBM1006
95    x-IBM1025
96    x-IBM1046
97    x-IBM1097
98    x-IBM1098
99    x-IBM1112
100    x-IBM1122
101    x-IBM1123
102    x-IBM1124
103    x-IBM1381
104    x-IBM1383
105    x-IBM33722
106    x-IBM737
107    x-IBM834
108    x-IBM856
109    x-IBM874
110    x-IBM875
111    x-IBM921
112    x-IBM922
113    x-IBM930
114    x-IBM933
115    x-IBM935
116    x-IBM937
117    x-IBM939
118    x-IBM942
119    x-IBM942C
120    x-IBM943
121    x-IBM943C
122    x-IBM948
123    x-IBM949
124    x-IBM949C
125    x-IBM950
126    x-IBM964
127    x-IBM970
128    x-ISCII91
129    x-ISO-2022-CN-CNS
130    x-ISO-2022-CN-GB
131    x-iso-8859-11
132    x-JIS0208
133    x-JISAutoDetect
134    x-Johab
135    x-MacArabic
136    x-MacCentralEurope
137    x-MacCroatian
138    x-MacCyrillic
139    x-MacDingbat
140    x-MacGreek
141    x-MacHebrew
142    x-MacIceland
143    x-MacRoman
144    x-MacRomania
145    x-MacSymbol
146    x-MacThai
147    x-MacTurkish
148    x-MacUkraine
149    x-MS932_0213
150    x-MS950-HKSCS
151    x-mswin-936
152    x-PCK
153    x-SJIS_0213
154    x-UTF-16LE-BOM
155    X-UTF-32BE-BOM
156    X-UTF-32LE-BOM
157    x-windows-50220
158    x-windows-50221
159    x-windows-874
160    x-windows-949
161    x-windows-950
162    x-windows-iso2022jp

*******获获得系统默认编码：*********
name=GBK,displayName=GBK
系统默认语言：zh    中国    CN
--------------1----------------
JP    日本
ja    日文
JPN
日文 (日本)

--------------2----------------
PE    秘鲁
es    西班牙文
PER
西班牙文 (秘鲁)

--------------3----------------

en    英文

英文

--------------4----------------
JP    日本
ja    日文
JPN
日文 (日本,JP)
JP    JP
--------------5----------------
PA    巴拿马
es    西班牙文
PAN
西班牙文 (巴拿马)

--------------6----------------
BA    波斯尼亚和黑山共和国
sr    塞尔维亚文
BIH
塞尔维亚文 (波斯尼亚和黑山共和国)

--------------7----------------

mk    马其顿文

马其顿文

--------------8----------------
GT    危地马拉
es    西班牙文
GTM
西班牙文 (危地马拉)