Java-获取系统属性

package lzh;
/**
 * 获取系统属性
 * 获取系统的相关属性,包括文件编码,操作系统名称,区域,用户名等,此属性一般由jvm自动获取,不能设置
 * @author lzh
 *
 */
public class ShowProperties {
public static void main(String[] args) {
System.getProperties().list(System.out);
System.out.println("以下示例获取指定信息");
        System.out.println("user.name--》："+System.getProperty("user.name"));
        System.out.println("java.library.path--》："+System.getProperty("java.library.path"));
}
}

/*
 * -- listing properties --
java.runtime.name=Java(TM) SE Runtime Environment
sun.boot.library.path=C:\Program Files\Java\jre1.8.0_101\bin
java.vm.version=25.101-b13
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.script=
user.country=CN
sun.java.launcher=SUN_STANDARD
sun.os.patch.level=Service Pack 1
java.vm.specification.name=Java Virtual Machine Specification
user.dir=D:\workspace\lzh
java.runtime.version=1.8.0_101-b13
java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs=C:\Program Files\Java\jre1.8.0_101\li...
os.arch=amd64
java.io.tmpdir=C:\Users\lzh\AppData\Local\Temp\
line.separator=

java.vm.specification.vendor=Oracle Corporation
user.variant=
os.name=Windows 7
sun.jnu.encoding=GBK
java.library.path=C:\Program Files\Java\jre1.8.0_101\bi...
java.specification.name=Java Platform API Specification
java.class.version=52.0
sun.management.compiler=HotSpot 64-Bit Tiered Compilers
os.version=6.1
user.home=C:\Users\lzh
user.timezone=
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=UTF-8
java.specification.version=1.8
user.name=lzh
java.class.path=D:\workspace\lzh\bin
java.vm.specification.version=1.8
sun.arch.data.model=64
java.home=C:\Program Files\Java\jre1.8.0_101
sun.java.command=lzh.ShowProperties
java.specification.vendor=Oracle Corporation
user.language=zh
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode
java.version=1.8.0_101
java.ext.dirs=C:\Program Files\Java\jre1.8.0_101\li...
sun.boot.class.path=C:\Program Files\Java\jre1.8.0_101\li...
java.vendor=Oracle Corporation
file.separator=\
java.vendor.url.bug=http://bugreport.sun.com/bugreport/
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.desktop=windows
sun.cpu.isalist=amd64
以下示例获取指定信息
user.name--》：lzh
java.library.path--》：C:\Program Files\Java\jre1.8.0_101\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_101/bin/server;C:/Program Files/Java/jre1.8.0_101/bin;C:/Program Files/Java/jre1.8.0_101/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Python27\Lib\site-packages\PyQt4;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Python27;C:\Python27\DLLs;C:\Python27\Scripts;C:\Python27\gnuplot\binary;C:\Program Files (x86)\pythonxy\SciTE-3.5.1-4;C:\Program Files (x86)\pythonxy\console;C:\Program Files (x86)\Lenovo\Access Connections\;C:\Users\lzh\AppData\Local\Programs\Python\Python35-32\Scripts\;C:\Users\lzh\AppData\Local\Programs\Python\Python35-32\;D:\eclipse;;.

 * 
 * 
 */