JAVA System Properties

  来个java获得系统配置文件的

public class SystemProperties 
{
public static void main(String[] args)
{		
       Properties properties = System.getProperties();
       Iterator<Entry<Object, Object>> iterator = properties.entrySet().iterator();
       while (iterator.hasNext()) 
       {
	   Entry<Object, Object> entry = iterator.next();
	   System.out.println(entry.getKey() + "===" + ntry.getValue());
       }
}
}

输出效果的例子：

引用

java.runtime.name===Java(TM) SE Runtime Environment
sun.boot.library.path===D:\Program Files\Java\jdk1.7.0\jre\bin
java.vm.version===21.0-b17
java.vm.vendor===Oracle Corporation
java.vendor.url===http://java.oracle.com/
path.separator===;
java.vm.name===Java HotSpot(TM) Client VM
file.encoding.pkg===sun.io
user.country===CN
user.script===
sun.java.launcher===SUN_STANDARD
sun.os.patch.level===
java.vm.specification.name===Java Virtual Machine Specification
user.dir===E:\workspace\FirstGtoovy
java.runtime.version===1.7.0-b147
java.awt.graphicsenv===sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs===D:\Program Files\Java\jdk1.7.0\jre\lib\endorsed
os.arch===x86
java.io.tmpdir===C:\Users\ZERO\AppData\Local\Temp\
line.separator===

java.vm.specification.vendor===Oracle Corporation
user.variant===
os.name===Windows 7
sun.jnu.encoding===GBK
java.library.path===D:\Program Files\Java\jdk1.7.0\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\MySQL\MySQL Server 5.1\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Lua\5.1;C:\Program Files\Lua\5.1\clibs;D:\Program Files\Java\jdk1.6.0_23/bin;D:\Program Files\Java\jdk1.6.0_23/jre/bin;D:\Program Files\apache-maven-3.0.3\bin;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Common Files\Thunder Network\KanKan\Codecs;C:\Program Files\Git\cmd;C:\Program Files\Git\bin;d:\Program Files\Lua\5.1;d:\Program Files\Lua\5.1\clibs;.
java.specification.name===Java Platform API Specification
java.class.version===51.0
sun.management.compiler===HotSpot Client Compiler
os.version===6.1
user.home===C:\Users\ZERO
user.timezone===
java.awt.printerjob===sun.awt.windows.WPrinterJob
file.encoding===UTF-8
java.specification.version===1.7
java.class.path===E:\workspace\FirstGtoovy\bin;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\lib\groovy-all-1.8.0.jar;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\lib\commons-cli-1.2.jar;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\lib\ivy-2.2.0.jar;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\lib\jline-0.9.94.jar;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\lib\servlet-api-2.4.jar;C:\Users\ZERO\.groovy\greclipse\global_dsld_support;D:\Program Files\eclipse-SDK-3.7-work\eclipse-SDK-3.7-win32\eclipse\plugins\org.codehaus.groovy_1.8.0.xx-20110628-1600-e37\plugin_dsld_support\;E:\workspace\FirstGtoovy\src\dom4j-1.6.1.jar
user.name===ZERO
java.vm.specification.version===1.7
sun.java.command===com.thread.TestClassT
java.home===D:\Program Files\Java\jdk1.7.0\jre
sun.arch.data.model===32
user.language===zh
java.specification.vendor===Oracle Corporation
awt.toolkit===sun.awt.windows.WToolkit
java.vm.info===mixed mode, sharing
java.version===1.7.0
java.ext.dirs===D:\Program Files\Java\jdk1.7.0\jre\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path===D:\Program Files\Java\jdk1.7.0\jre\lib\resources.jar;D:\Program Files\Java\jdk1.7.0\jre\lib\rt.jar;D:\Program Files\Java\jdk1.7.0\jre\lib\sunrsasign.jar;D:\Program Files\Java\jdk1.7.0\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.7.0\jre\lib\jce.jar;D:\Program Files\Java\jdk1.7.0\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.7.0\jre\classes
java.vendor===Oracle Corporation
file.separator===\
java.vendor.url.bug===http://bugreport.sun.com/bugreport/
sun.io.unicode.encoding===UnicodeLittle
sun.cpu.endian===little
sun.desktop===windows
sun.cpu.isalist===pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86