java有关操作系统的一些属性
package com.ccm.codebase.temporary;
/*
获得当前类的完整路径。最后一句
*/
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
/**
*
java.version Java 运行时环境版本
java.vendor Java 运行时环境供应商
java.vendor.url Java 供应商的 URL
java.vm.specification.version Java 虚拟机规范版本
java.vm.specification.vendor Java 虚拟机规范供应商
java.vm.specification.name Java 虚拟机规范名称
java.vm.version Java 虚拟机实现版本
java.vm.vendor Java 虚拟机实现供应商
java.vm.name Java 虚拟机实现名称
java.specification.version Java 运行时环境规范版本
java.specification.vendor Java 运行时环境规范供应商
java.specification.name Java 运行时环境规范名称
os.name 操作系统的名称
os.arch 操作系统的架构
os.version 操作系统的版本
file.separator 文件分隔符(在 UNIX 系统中是“ / ”)
path.separator 路径分隔符(在 UNIX 系统中是“ : ”)
line.separator 行分隔符(在 UNIX 系统中是“ /n ”)
java.home Java 安装目录
java.class.version Java 类格式版本号
java.class.path Java 类路径
java.library.path 加载库时搜索的路径列表
java.io.tmpdir 默认的临时文件路径
java.compiler 要使用的 JIT 编译器的名称
java.ext.dirs 一个或多个扩展目录的路径
user.name 用户的账户名称
user.home 用户的主目录
user.dir
*/
public class JavaSystemProperty {
public static void main(String[] args) throws MalformedURLException, URISyntaxException {
System.out.println("java.home : " + System.getProperty("java.home"));
System.out.println("java.class.version : " + System.getProperty("java.class.version"));
System.out.println("java.class.path : " + System.getProperty("java.class.path"));
System.out.println("java.library.path : " + System.getProperty("java.library.path"));
System.out.println("java.io.tmpdir : " + System.getProperty("java.io.tmpdir"));
System.out.println("java.compiler : " + System.getProperty("java.compiler"));
System.out.println("java.ext.dirs : " + System.getProperty("java.ext.dirs"));
System.out.println("user.name : " + System.getProperty("user.name"));
System.out.println("user.home : " + System.getProperty("user.home"));
System.out.println("user.dir : " + System.getProperty("user.dir"));
System.out.println("===================");
System.out.println("package: "+ JavaSystemProperty.class.getPackage().getName());
System.out.println("package: "+ JavaSystemProperty.class.getPackage().toString());
System.out.println("=========================");
String packName = JavaSystemProperty.class.getPackage().getName();
/*URL packurl = new URL(packName);
System.out.println(packurl.getPath());*/
URI packuri = new URI(packName);
System.out.println(packuri.getPath());
//System.out.println(packuri.toURL().getPath());
System.out.println(packName.replaceAll("//.", "/"));
System.out.println(System.getProperty("user.dir")+"/"+(JavaSystemProperty.class.getPackage().getName()).replaceAll("//.", "/")+"/");
}
}
java.home : C:\Program Files\Java\jdk1.8.0_144\jre
java.class.version : 52.0
java.class.path : C:\Program Files\Java\jdk1.8.0_144\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_144\jre\lib\rt.jar;D:\Projects\codebase\target\classes;C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.2.2\lib\idea_rt.jar
java.library.path : C:\Program Files\Java\jdk1.8.0_144\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64\compiler;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Java\jdk1.8.0_144\bin;C:\Program Files\Java\jdk1.8.0_144\jre\bin;D:\Software\FortuneLantern\apache-ant-1.10.1-bin\apache-ant-1.10.1\bin;D:\Program Files (x86)\Launch4j\bin;D:\Program Files\Git\cmd;D:\Program Files\Git LFS;C:\WINDOWS\System32\OpenSSH;D:\Software\FFMeng\ffmpeg-2.8.1-win64-static\bin;D:\Software\Java\maven\apache-maven-3.5.3\bin;D:\Software\Java\apache-tomcat-9.0.8\bin;D:\Software\Java\apache-tomcat-9.0.8\lib;D:\Program Files\Python27;C:\Program Files\MySQL\MySQL Server 8.0\bin;C:\WINDOWS\system32\config\systemprofile.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm;C:\Program Files\Microsoft SQL Server\130\Tools\Binn;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit;D:\Program Files\nodejs;D:\FFMpeg\yasm\vsyasm-1.3.0-win64;D:\Program Files (x86)\gifsicle;D:\Program Files\TortoiseGit\bin;D:\Software\protobuf\protobuf-3.6.1\x64VS2015\Debug;D:\Program Files\jibx;C:\Users\black\AppData\Local\Microsoft\WindowsApps;D:\Software\FortuneLantern\apache-ant-1.10.1-bin\apache-ant-1.10.1\bin;C:\Users\black\AppData\Local\GitHubDesktop\bin;C:\Users\black\AppData\Local\Microsoft\WindowsApps;D:\Software\FFMeng\ffmpeg-20180529-ea0010b-win64-static\bin;D:\Program Files (x86)\Slot Constructor\bin;D:\Program Files (x86)\Slot Constructor\plugins;C:\Users\black\AppData\Roaming\npm;;.
java.io.tmpdir : C:\Users\black\AppData\Local\Temp
java.compiler : null
java.ext.dirs : C:\Program Files\Java\jdk1.8.0_144\jre\lib\ext;C:\WINDOWS\Sun\Java\lib\ext
user.name : black
user.home : C:\Users\black
user.dir : D:\Projects\codebase
===================
package: com.ccm.codebase.temporary
package: package com.ccm.codebase.temporary
=========================
com.ccm.codebase.temporary
com.ccm.codebase.temporary
D:\Projects\codebase/com.ccm.codebase.temporary/