代码如下:
import java.util.Enumeration; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import java.util.Properties; import java.util.Set; ? public ? ????@SuppressWarnings("unchecked") ????public ????????System.out.println("系统环境如下:"); ????????Map<String, String> map = System.getenv(); ????????Set<Entry<String, String>> set = map.entrySet(); ????????Iterator<Entry<String, String>> iter = set.iterator(); ????????while (iter.hasNext()) { ????????????Entry<String, String> ent = iter.next(); ????????????System.out.println(ent.getKey() + "\n ->" + ent.getValue()); ????????} ????????System.out.println("------------分割线------------------"); ????????System.out.println("Java属性如下:"); ????????Properties p = System.getProperties(); ????????Enumeration<String> enu = (Enumeration<String>) p.propertyNames(); ????????while (enu.hasMoreElements()) { ????????????String s = enu.nextElement(); ????????????System.out.println(s + "\n ->" + System.getProperty(s)); ????????} ? ????} ? } |
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我的输出如下:
系统环境如下: LOCALAPPDATA ->C:\Users\zz\AppData\Local PROCESSOR_LEVEL ->6 FP_NO_HOST_CHECK ->NO USERDOMAIN ->zz-PC LOGONSERVER ->\\ZZ-PC SESSIONNAME ->Console ALLUSERSPROFILE ->C:\ProgramData PROCESSOR_ARCHITECTURE ->AMD64 PSModulePath ->C:\Windows\system32\WindowsPowerShell\v1.0\Modules\ SystemDrive ->C: APPDATA ->C:\Users\zz\AppData\Roaming USERNAME ->zz windows_tracing_logfile ->C:\BVTBin\Tests\installpackage\csilogfile.log ProgramFiles(x86) ->C:\Program Files (x86) CommonProgramFiles ->C:\Program Files\Common Files Path ->C:/Program Files/Java/jre1.8.0_102/bin/server;C:/Program Files/Java/jre1.8.0_102/bin;C:/Program Files/Java/jre1.8.0_102/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;D:\MySoft\mysql-5.7.15-winx64\bin;C:\Program Files\Calibre2\;D:\MySoft\eclipse; PATHEXT ->.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC OS ->Windows_NT windows_tracing_flags ->3 COMPUTERNAME ->ZZ-PC PROCESSOR_REVISION ->2a07 CommonProgramW6432 ->C:\Program Files\Common Files ComSpec ->C:\Windows\system32\cmd.exe ProgramData ->C:\ProgramData ProgramW6432 ->C:\Program Files HOMEPATH ->\Users\zz SystemRoot ->C:\Windows TEMP ->C:\Users\zz\AppData\Local\Temp MYSQL_HOME ->D:\MySoft\mysql-5.7.15-winx64 HOMEDRIVE ->C: PROCESSOR_IDENTIFIER ->Intel64 Family 6 Model 42 Stepping 7, GenuineIntel USERPROFILE ->C:\Users\zz TMP ->C:\Users\zz\AppData\Local\Temp CommonProgramFiles(x86) ->C:\Program Files (x86)\Common Files ProgramFiles ->C:\Program Files PUBLIC ->C:\Users\Public NUMBER_OF_PROCESSORS ->4 windir ->C:\Windows =:: ->::\ ------------分割线------------------ Java属性如下: java.runtime.name ->Java(TM) SE Runtime Environment sun.boot.library.path ->C:\Program Files\Java\jre1.8.0_102\bin java.vm.version ->25.102-b14 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:\MySoft\WorkSpace\EMProject java.runtime.version ->1.8.0_102-b14 java.awt.graphicsenv ->sun.awt.Win32GraphicsEnvironment java.endorsed.dirs ->C:\Program Files\Java\jre1.8.0_102\lib\endorsed os.arch ->amd64 java.io.tmpdir ->C:\Users\zz\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_102\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_102/bin/server;C:/Program Files/Java/jre1.8.0_102/bin;C:/Program Files/Java/jre1.8.0_102/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;D:\MySoft\mysql-5.7.15-winx64\bin;C:\Program Files\Calibre2\;D:\MySoft\eclipse;;. 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\zz user.timezone -> java.awt.printerjob ->sun.awt.windows.WPrinterJob file.encoding ->UTF-8 java.specification.version ->1.8 user.name ->zz java.class.path ->D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\classes;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\SmartUpload.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\commons-beanutils-1.7.0.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\commons-collections-3.2.1.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\commons-httpclient-3.1.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\commons-lang-2.3.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\commons-logging-1.1.1.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\ezmorph-1.0.3.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\filters-2.0.235.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\javax.servlet.jsp.jstl.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\json-lib-2.2.3-jdk15.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\jsp-api.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\jstl-impl-1.2.2.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\kaptcha-0.0.9.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\mysql-connector-java-5.0.4-bin.jar;D:\MySoft\WorkSpace\EMProject\WebContent\WEB-INF\lib\servlet-api.jar java.vm.specification.version ->1.8 sun.arch.data.model ->64 java.home ->C:\Program Files\Java\jre1.8.0_102 sun.java.command ->test.Test java.specification.vendor ->Oracle Corporation user.language ->zh awt.toolkit ->sun.awt.windows.WToolkit java.vm.info ->mixed mode java.version ->1.8.0_102 java.ext.dirs ->C:\Program Files\Java\jre1.8.0_102\lib\ext;C:\Windows\Sun\Java\lib\ext sun.boot.class.path ->C:\Program Files\Java\jre1.8.0_102\lib\resources.jar;C:\Program Files\Java\jre1.8.0_102\lib\rt.jar;C:\Program Files\Java\jre1.8.0_102\lib\sunrsasign.jar;C:\Program Files\Java\jre1.8.0_102\lib\jsse.jar;C:\Program Files\Java\jre1.8.0_102\lib\jce.jar;C:\Program Files\Java\jre1.8.0_102\lib\charsets.jar;C:\Program Files\Java\jre1.8.0_102\lib\jfr.jar;C:\Program Files\Java\jre1.8.0_102\classes 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 |
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简化代码:
System.getProperties().list(System.out); ???????? Object[] str = System.getenv().keySet().toArray(); for(Object s:str){ ????String temp = (String) s; ????System.out.println(temp+"="+System.getenv(temp)); } |