자바 정보 확인 명령어(java.library.path, java.version, sun.boot.class.path 등)

윈도우, 리눅스 둘 다 확인 가능한 명령어

[root@boya ~]# java -XshowSettings:properties -version 

Property settings: 

    awt.toolkit = sun.awt.X11.XToolkit 

    file.encoding = UTF-8 

    file.encoding.pkg = sun.io 

    file.separator = / 

    java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment 

    java.awt.printerjob = sun.print.PSPrinterJob 

    java.class.path = . 

    java.class.version = 51.0 

    java.endorsed.dirs = /usr/java/jdk1.7.0_80/jre/lib/endorsed 

    java.ext.dirs = /usr/java/jdk1.7.0_80/jre/lib/ext 

        /usr/java/packages/lib/ext 

    java.home = /usr/java/jdk1.7.0_80/jre 

    java.io.tmpdir = /tmp 

    java.library.path = /usr/java/packages/lib/amd64 

        /usr/lib64 

        /lib64 

        /lib 

        /usr/lib 

    java.runtime.name = Java(TM) SE Runtime Environment 

    java.runtime.version = 1.7.0_80-b15 

    java.specification.name = Java Platform API Specification 

    java.specification.vendor = Oracle Corporation 

    java.specification.version = 1.7 

    java.vendor = Oracle Corporation 

    java.vendor.url = http://java.oracle.com/ 

    java.vendor.url.bug = http://bugreport.sun.com/bugreport/ 

    java.version = 1.7.0_80 

    java.vm.info = mixed mode 

    java.vm.name = Java HotSpot(TM) 64-Bit Server VM 

    java.vm.specification.name = Java Virtual Machine Specification 

    java.vm.specification.vendor = Oracle Corporation 

    java.vm.specification.version = 1.7 

    java.vm.vendor = Oracle Corporation 

    java.vm.version = 24.80-b11 

    line.separator = \n 

    os.arch = amd64 

    os.name = Linux 

    os.version = 2.6.32-696.el6.x86_64 

    path.separator = : 

    sun.arch.data.model = 64 

    sun.boot.class.path = /usr/java/jdk1.7.0_80/jre/lib/resources.jar 

        /usr/java/jdk1.7.0_80/jre/lib/rt.jar 

        /usr/java/jdk1.7.0_80/jre/lib/sunrsasign.jar 

        /usr/java/jdk1.7.0_80/jre/lib/jsse.jar 

        /usr/java/jdk1.7.0_80/jre/lib/jce.jar 

        /usr/java/jdk1.7.0_80/jre/lib/charsets.jar 

        /usr/java/jdk1.7.0_80/jre/lib/jfr.jar 

        /usr/java/jdk1.7.0_80/jre/classes 

    sun.boot.library.path = /usr/java/jdk1.7.0_80/jre/lib/amd64 

    sun.cpu.endian = little 

    sun.cpu.isalist = 

    sun.io.unicode.encoding = UnicodeLittle 

    sun.java.launcher = SUN_STANDARD 

    sun.jnu.encoding = UTF-8 

    sun.management.compiler = HotSpot 64-Bit Tiered Compilers 

    sun.os.patch.level = unknown 

    user.country = US 

    user.dir = /root 

    user.home = /root 

    user.language = en 

    user.name = root 

    user.timezone = 

 

java version "1.7.0_80" 

Java(TM) SE Runtime Environment (build 1.7.0_80-b15) 

Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)