Java System.getProperty() 方法识别的标准键的完整列表是什么?[已关闭]

2022-09-01 15:38:15

是否有一个引用页列出了 Java 方法始终接受的所有标准属性键?System.getProperty(key)

我指的不是java命令的用户可以设置的系统属性(这将是一个无限的列表),而是指运行时设置的属性(例如,等)。java.versionjava.specification.version


答案 1

也许也有帮助:

  • 显示 JVM 选取的有效属性值:

    java -XshowSettings:all
    

答案 2

比如: https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html ?我会说甲骨文会有一个列表

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

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

虽然有些重复,但我认为前者的描述比后者更翔实。后者列出了28个属性,而如果我打印所有属性,我的jvm以56响应,一些未在28中列出的属性包括(12),(3),10个用户属性中的7个(sun.**.awt.*country.format, country, script, variant, timezone, language, language.format)


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