Gus*_*ave 18 java specifications
是否有一个参考页面列出了Java System.getProperty(key)
方法始终接受的所有标准属性键?
我不是指的是可以通过java命令的用户设置系统属性(这将是一个无限的列表),但对性能运行时将自身设置(如java.version
,java.specification.version
等).
JFK*_*JFK 23
也许也有帮助:
显示JVM选择的有效属性值:
java -XshowSettings:all
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喜欢:https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html?我会说Oracle会有一个列表
更新(从上面的链接复制):
"file.separator" Character that separates components of a file path. This is "/" on UNIX and "\" on Windows.
"java.class.path" Path used to find directories and JAR archives containing class files. Elements of the class path are separated by a platform-specific character specified in the path.separator property.
"java.home" Installation directory for Java Runtime Environment (JRE)
"java.vendor" JRE vendor name
"java.vendor.url" JRE vendor URL
"java.version" JRE version number
"line.separator" Sequence used by operating system to separate lines in text files
"os.arch" Operating system architecture
"os.name" Operating system name
"os.version" Operating system version
"path.separator" Path separator character used in java.class.path
"user.dir" User working directory
"user.home" User home directory
"user.name" User account name
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来自https://docs.oracle.com/javase/8/docs/api/java/lang/System.html的更完整列表
java.version Java Runtime Environment version
java.vendor Java Runtime Environment vendor
java.vendor.url Java vendor URL
java.home Java installation directory
java.vm.specification.version Java Virtual Machine specification version
java.vm.specification.vendor Java Virtual Machine specification vendor
java.vm.specification.name Java Virtual Machine specification name
java.vm.version Java Virtual Machine implementation version
java.vm.vendor Java Virtual Machine implementation vendor
java.vm.name Java Virtual Machine implementation name
java.specification.version Java Runtime Environment specification version
java.specification.vendor Java Runtime Environment specification vendor
java.specification.name Java Runtime Environment specification name
java.class.version Java class format version number
java.class.path Java class path
java.library.path List of paths to search when loading libraries
java.io.tmpdir Default temp file path
java.compiler Name of JIT compiler to use
java.ext.dirs Path of extension directory or directories Deprecated. This property, and the mechanism which implements it, may be removed in a future release.
os.name Operating system name
os.arch Operating system architecture
os.version Operating system version
file.separator File separator ("/" on UNIX)
path.separator Path separator (":" on UNIX)
line.separator Line separator ("\n" on UNIX)
user.name User's account name
user.home User's home directory
user.dir User's current working directory
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虽然有些重复,但我认为前者的描述比后者更具信息量.后者列出28个属性,而如果我打印所有属性,我的jvm响应56,一些未列在28包括sun.*
(12),*.awt.*
(3),7个用户属性中的7个(country.format, country, script, variant, timezone, language, language.format
)
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