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< span id = "sysprop" > < / span > < h1 > sysprop< a class = "headerlink" href = "#sysprop" title = "永久链接至标题" > ¶< / a > < / h1 >
< blockquote >
< div > 查看当前JVM的系统属性(< code class = "docutils literal notranslate" > < span class = "pre" > System< / span > < span class = "pre" > Property< / span > < / code > )< / div > < / blockquote >
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< span id = "id1" > < / span > < h2 > 使用参考< a class = "headerlink" href = "#" title = "永久链接至标题" > ¶< / a > < / h2 >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "n" > USAGE< / span > < span class = "p" > :< / span >
< span class = "n" > sysprop< / span > < span class = "p" > [< / span > < span class = "o" > -< / span > < span class = "n" > h< / span > < span class = "p" > ]< / span > < span class = "p" > [< / span > < span class = "nb" > property< / span > < span class = "o" > -< / span > < span class = "n" > name< / span > < span class = "p" > ]< / span > < span class = "p" > [< / span > < span class = "nb" > property< / span > < span class = "o" > -< / span > < span class = "n" > value< / span > < span class = "p" > ]< / span >
< span class = "n" > SUMMARY< / span > < span class = "p" > :< / span >
< span class = "n" > Display< / span > < span class = "p" > ,< / span > < span class = "ow" > and< / span > < span class = "n" > change< / span > < span class = "nb" > all< / span > < span class = "n" > the< / span > < span class = "n" > system< / span > < span class = "n" > properties< / span > < span class = "o" > .< / span >
< span class = "n" > EXAMPLES< / span > < span class = "p" > :< / span >
< span class = "n" > sysprop< / span >
< span class = "n" > sysprop< / span > < span class = "n" > file< / span > < span class = "o" > .< / span > < span class = "n" > encoding< / span >
< span class = "n" > sysprop< / span > < span class = "n" > production< / span > < span class = "o" > .< / span > < span class = "n" > mode< / span > < span class = "n" > true< / span >
< span class = "n" > WIKI< / span > < span class = "p" > :< / span >
< span class = "n" > https< / span > < span class = "p" > :< / span > < span class = "o" > //< / span > < span class = "n" > alibaba< / span > < span class = "o" > .< / span > < span class = "n" > github< / span > < span class = "o" > .< / span > < span class = "n" > io< / span > < span class = "o" > /< / span > < span class = "n" > arthas< / span > < span class = "o" > /< / span > < span class = "n" > sysprop< / span >
< span class = "n" > OPTIONS< / span > < span class = "p" > :< / span >
< span class = "o" > -< / span > < span class = "n" > h< / span > < span class = "p" > ,< / span > < span class = "o" > --< / span > < span class = "n" > help< / span > < span class = "n" > this< / span > < span class = "n" > help< / span >
< span class = "o" > < < / span > < span class = "nb" > property< / span > < span class = "o" > -< / span > < span class = "n" > name< / span > < span class = "o" > > < / span > < span class = "nb" > property< / span > < span class = "n" > name< / span >
< span class = "o" > < < / span > < span class = "nb" > property< / span > < span class = "o" > -< / span > < span class = "n" > value< / span > < span class = "o" > > < / span > < span class = "nb" > property< / span > < span class = "n" > value< / span >
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< span id = "id2" > < / span > < h3 > 查看所有属性< a class = "headerlink" href = "#" title = "永久链接至标题" > ¶< / a > < / h3 >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > $ 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
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< span id = "id3" > < / span > < h3 > 查看单个属性< a class = "headerlink" href = "#" title = "永久链接至标题" > ¶< / a > < / h3 >
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< div > 支持通过< code class = "docutils literal notranslate" > < span class = "pre" > TAB< / span > < / code > 键自动补全< / div > < / blockquote >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > $ sysprop java.version
java.version=1.8.0_51
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< span id = "id4" > < / span > < h3 > 修改单个属性< a class = "headerlink" href = "#" title = "永久链接至标题" > ¶< / a > < / h3 >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > $ sysprop user.country
user.country=US
$ sysprop user.country CN
Successfully changed the system property.
user.country=CN
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