java System属性

自定义 :

java -Dname=value

Standard System Properties

 

Property Name	Description	Java Version
file.encoding	The character encoding for the default locale	1.1
file.encoding.pkg	The package that contains the converters that handle converting between local encodings and Unicode	1.1
file.separator	The platform-dependent file separator (e.g., "/" on UNIX, "\" for Windows)	1.0
java.class.path	The value of the CLASSPATH environment variable	1.0
java.class.version	The version of the Java API	1.0
java.compiler	The just-in-time compiler to use, if any. The java interpreter provided with the JDK initializes this property from the environment variable JAVA_COMPILER.	1.0
java.home	The directory in which Java is installed	1.0
java.io.tmpdir	The directory in which java should create temporary files	1.2
java.version	The version of the Java interpreter	1.0
java.vendor	A vendor-specific string	1.0
java.vendor.url	A vendor URL	1.0
line.separator	The platform-dependent line separator (e.g., "\n" on UNIX, "\r\n" for Windows)	1.0
os.name	The name of the operating system	1.0
os.arch	The system architecture	1.0
os.version	The operating system version	1.0
path.separator	The platform-dependent path separator (e.g., ":" on UNIX, "," for Windows)	1.0
user.dir	The current working directory when the properties were initialized	1.0
user.home	The home directory of the current user	1.0
user.language	The two-letter language code of the default locale	1.1
user.name	The username of the current user	1.0
user.region	The two-letter country code of the default locale	1.1
user.timezone	The default time zone	1.1