Java获取特殊目录或特殊值_编程语言综合--HTML5中文学习网

public static void main(String[] args) {

				Properties properties = System.getProperties()  ;				for(Map.Entry<?, ?> entry : properties.entrySet()){			System.out.println( entry.getKey() 					 + "-->" + entry.getValue() ); 		}		System.out.println( System.getProperty("##########################") ); 		Map<String , String> map = System.getenv() ; 		for(Map.Entry<?, ?> entry : map.entrySet()){			System.out.println( entry.getKey() 					 + "-->" + entry.getValue() ) ;  		} 	}

系统输出这样的结果：
java.runtime.name-->Java(TM) SE Runtime Environment

sun.boot.library.path-->E:/soft/JAVA/jdk1.6.0_21/jre/bin

java.vm.version-->17.0-b17

java.vm.vendor-->Sun Microsystems Inc.

java.vendor.url-->http://java.sun.com/

path.separator-->;

java.vm.name-->Java HotSpot(TM) Client VM

file.encoding.pkg-->sun.io

sun.java.launcher-->SUN_STANDARD

user.country-->CN

sun.os.patch.level-->Service Pack 3

java.vm.specification.name-->Java Virtual Machine Specification

user.dir-->F:/httpclient

java.runtime.version-->1.6.0_21-b07

java.awt.graphicsenv-->sun.awt.Win32GraphicsEnvironment

java.endorsed.dirs-->E:/soft/JAVA/jdk1.6.0_21/jre/lib/endorsed

os.arch-->x86

java.io.tmpdir-->C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/

line.separator-->

java.vm.specification.vendor-->Sun Microsystems Inc.

user.variant-->

os.name-->Windows XP

sun.jnu.encoding-->GBK

java.library.path-->E:/soft/JAVA/jdk1.6.0_21/bin;.;C:/WINDOWS/Sun/Java/bin;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem;E:/soft/JAVA/jdk1.6.0_21/bin;E:/soft/apache-maven-3.0.4/bin/;

java.specification.name-->Java Platform API Specification

java.class.version-->50.0

sun.management.compiler-->HotSpot Client Compiler

os.version-->5.1

user.home-->C:/Documents and Settings/Administrator

user.timezone-->

java.awt.printerjob-->sun.awt.windows.WPrinterJob

file.encoding-->GBK

java.specification.version-->1.6

java.class.path-->F:/httpclient/WebRoot/WEB-INF/classes

user.name-->Administrator

java.vm.specification.version-->1.0

java.home-->E:/soft/JAVA/jdk1.6.0_21/jre

sun.arch.data.model-->32

user.language-->zh

java.specification.vendor-->Sun Microsystems Inc.

awt.toolkit-->sun.awt.windows.WToolkit

java.vm.info-->mixed mode

java.version-->1.6.0_21

java.ext.dirs-->E:/soft/JAVA/jdk1.6.0_21/jre/lib/ext;C:/WINDOWS/Sun/Java/lib/ext

sun.boot.class.path-->E:/soft/JAVA/jdk1.6.0_21/jre/lib/resources.jar;E:/soft/JAVA/jdk1.6.0_21/jre/lib/rt.jar;E:/soft/JAVA/jdk1.6.0_21/jre/lib/sunrsasign.jar;E:/soft/JAVA/jdk1.6.0_21/jre/lib/jsse.jar;E:/soft/JAVA/jdk1.6.0_21/jre/lib/jce.jar;E:/soft/JAVA/jdk1.6.0_21/jre/lib/charsets.jar;E:/soft/JAVA/jdk1.6.0_21/jre/classes;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/activation.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/javax.servlet.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/javax.servlet.jsp.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/jboss-j2ee.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/jboss-jaxrpc.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/jboss-jsr77.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/jboss-saaj.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/mail.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/namespace.jar;E:/soft/JAVA/MyEclipse/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806/data/libraryset/1.4/xml-apis.jar

java.vendor-->Sun Microsystems Inc.

file.separator-->/

java.vendor.url.bug-->http://java.sun.com/cgi-bin/bugreport.cgi

sun.io.unicode.encoding-->UnicodeLittle

sun.cpu.endian-->little

sun.desktop-->windows

sun.cpu.isalist-->pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

null

USERPROFILE-->C:/Documents and Settings/Administrator

PATHEXT-->.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH

ORACLE_HOME-->E:/soft/Ora10InstantClient

JAVA_HOME-->E:/soft/JAVA/jdk1.6.0_21

MAVEN_HOME-->E:/soft/apache-maven-3.0.4

TEMP-->C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp

SystemDrive-->C:

MOZ_PLUGIN_PATH-->E:/soft/Foxit/plugins/

ProgramFiles-->C:/Program Files

Path-->C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem;E:/soft/JAVA/jdk1.6.0_21/bin;E:/soft/apache-maven-3.0.4/bin/;

HOMEDRIVE-->C:

PROCESSOR_REVISION-->0f0d

TNS_ADMIN-->E:/soft/Ora10InstantClient

CLIENTNAME-->Console

USERDOMAIN-->ELECTRUM006

ALLUSERSPROFILE-->C:/Documents and Settings/All Users

PROCESSOR_IDENTIFIER-->x86 Family 6 Model 15 Stepping 13, GenuineIntel

SESSIONNAME-->Console

TMP-->C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp

LOGONSERVER-->//ELECTRUM006

CommonProgramFiles-->C:/Program Files/Common Files

PROCESSOR_ARCHITECTURE-->x86

FP_NO_HOST_CHECK-->NO

OS-->Windows_NT

HOMEPATH-->/Documents and Settings/Administrator

PROCESSOR_LEVEL-->6

1830B7BD-F7A3-4c4d-989B-C004DE465EDE-->1f4:bd918

COMPUTERNAME-->ELECTRUM006

windir-->C:/WINDOWS

SystemRoot-->C:/WINDOWS

NUMBER_OF_PROCESSORS-->2

USERNAME-->Administrator

NLS_LANG-->SIMPLIFIED CHINESE_CHINA.ZHS16GBK

ComSpec-->C:/WINDOWS/system32/cmd.exe

APPDATA-->C:/Documents and Settings/Administrator/Application Data