java的System.getProperty()方法可以获取的值

[java.runtime.name,
sun.boot.library.path,
java.vm.version,
java.vm.vendor,
java.vendor.url,
path.separator,
java.vm.name,
file.encoding.pkg,
user.script,
user.country,
sun.java.launcher,
sun.os.patch.level,
java.vm.specification.name,
user.dir,
java.runtime.version,
java.awt.graphicsenv,
java.endorsed.dirs,
os.arch,
java.io.tmpdir,
line.separator,
java.vm.specification.vendor,
user.variant,
os.name,
sun.jnu.encoding,
java.library.path,
java.specification.name,
java.class.version,
sun.management.compiler,
os.version,
user.home,
user.timezone,
java.awt.printerjob,
file.encoding,
java.specification.version,
user.name,
java.class.path,
java.vm.specification.version,
sun.arch.data.model,
java.home,
sun.java.command,
java.specification.vendor,
user.language,
awt.toolkit,
java.vm.info,
java.version,
java.ext.dirs,
sun.boot.class.path,
java.vendor,
file.separator,
java.vendor.url.bug,
sun.cpu.endian,
sun.io.unicode.encoding,
sun.desktop,
sun.cpu.isalist]

总共54个固定