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<div class="section" id="sysprop">
<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>
<div class="section" id="">
<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>
</pre></div>
</div>
<div class="section" id="">
<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
</pre></div>
</div>
</div>
<div class="section" id="">
<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>
<blockquote>
<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
</pre></div>
</div>
</div>
<div class="section" id="">
<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
</pre></div>
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