目录
# sysprop
提示
查看当前 JVM 的系统属性(System Property)
# 使用参考
USAGE:
sysprop [-h] [property-name] [property-value]
SUMMARY:
Display, and change all the system properties.
EXAMPLES:
sysprop
sysprop file.encoding
sysprop production.mode true
WIKI:
https://arthas.aliyun.com/doc/sysprop
OPTIONS:
-h, --help this help
<property-name> property name
<property-value> property value
# 查看所有属性
$ sysprop
KEY VALUE
-------------------------------------------------------------------------------------------------------------------------------------
java.runtime.name Java(TM) SE Runtime Environment
sun.boot.library.path /Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib
java.vm.version 25.51-b03
user.country.format CN
gopherProxySet false
java.vm.vendor Oracle Corporation
java.vendor.url http://java.oracle.com/
path.separator :
java.vm.name Java HotSpot(TM) 64-Bit Server VM
file.encoding.pkg sun.io
user.country US
sun.java.launcher SUN_STANDARD
sun.os.patch.level unknown
java.vm.specification.name Java Virtual Machine Specification
user.dir /private/var/tmp
java.runtime.version 1.8.0_51-b16
java.awt.graphicsenv sun.awt.CGraphicsEnvironment
java.endorsed.dirs /Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/endors
ed
os.arch x86_64
java.io.tmpdir /var/folders/2c/tbxwzs4s4sbcvh7frbcc7n000000gn/T/
line.separator
java.vm.specification.vendor Oracle Corporation
os.name Mac OS X
sun.jnu.encoding UTF-8
java.library.path /Users/wangtao/Library/Java/Extensions:/Library/Java/Extensions:/Network/Libra
ry/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
sun.nio.ch.bugLevel
java.specification.name Java Platform API Specification
java.class.version 52.0
sun.management.compiler HotSpot 64-Bit Tiered Compilers
os.version 10.12.6
user.home /Users/wangtao
user.timezone Asia/Shanghai
java.awt.printerjob sun.lwawt.macosx.CPrinterJob
file.encoding UTF-8
java.specification.version 1.8
user.name wangtao
java.class.path .
java.vm.specification.version 1.8
sun.arch.data.model 64
java.home /Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre
sun.java.command Test
java.specification.vendor Oracle Corporation
user.language en
awt.toolkit sun.lwawt.macosx.LWCToolkit
java.vm.info mixed mode
java.version 1.8.0_51
java.ext.dirs /Users/wangtao/Library/Java/Extensions:/Library/Java/JavaVirtualMachines/jdk1.
8.0_51.jdk/Contents/Home/jre/lib/ext:/Library/Java/Extensions:/Network/Library
/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java
sun.boot.class.path /Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/lib/resour
ces.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/li
b/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/jre/l
ib/sunrsasign.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/H
ome/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Content
s/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Conte
nts/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jd
k/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_51.
jdk/Contents/Home/jre/classes
java.vendor Oracle Corporation
file.separator /
java.vendor.url.bug http://bugreport.sun.com/bugreport/
sun.cpu.endian little
sun.io.unicode.encoding UnicodeBig
sun.cpu.isalist
# 查看单个属性
提示
支持通过TAB键自动补全
$ sysprop java.version
java.version=1.8.0_51
# 修改单个属性
$ sysprop user.country
user.country=US
$ sysprop user.country CN
Successfully changed the system property.
user.country=CN