System.getProperty-优快云博客

本文详细展示了如何通过Java系统属性获取当前Java运行环境的信息，包括Java版本、供应商、虚拟机规格等，并提供了具体示例。
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        System.out.println("java.version"                 + "====>" + System.getProperty("java.version"));
        System.out.println("java.vendor"                  + "====>" + System.getProperty("java.vendor")); 
        System.out.println("java.vendor.ur"               + "====>" + System.getProperty("java.vendor.ur"));
        System.out.println("java.home"                    + "====>" + System.getProperty("java.home"));
        System.out.println("java.vm.specification.version"+ "====>" + System.getProperty("java.vm.specification.version"));
        System.out.println("java.vm.specification.vendor" + "====>" + System.getProperty("java.vm.specification.vendor"));
        System.out.println("java.vm.specification.name"   + "====>" + System.getProperty("java.vm.specification.name"));
        System.out.println("java.vm.version"              + "====>" + System.getProperty("java.vm.version"));
        System.out.println("java.vm.vendor"               + "====>" + System.getProperty("java.vm.vendor"));
        System.out.println("java.vm.name"                 + "====>" + System.getProperty("java.vm.name"));
        System.out.println("java.specification.version"   + "====>" + System.getProperty("java.specification.version"));
        System.out.println("java.specification.vendor"    + "====>" + System.getProperty("java.specification.vendor")); 
        System.out.println("java.specification.name"      + "====>" + System.getProperty("java.specification.name")); 
        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("os.name Operating"            + "====>" + System.getProperty("os.name Operating"));
        System.out.println("os.arch Operating"            + "====>" + System.getProperty("os.arch Operating"));
        System.out.println("os.version Operating"         + "====>" + System.getProperty("os.version Operating"));
        System.out.println("file.separator"               + "====>" + System.getProperty("file.separator"));
        System.out.println("path.separator"               + "====>" + System.getProperty("path.separator"));
        System.out.println("line.separator"               + "====>" + System.getProperty("line.separator"));
        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"));
以下は結果です
java.version====>1.6.0
java.vendor====>Sun Microsystems Inc.
java.vendor.ur====>null
java.home====>C:/Program Files/Java/jdk1.6.0/jre
java.vm.specification.version====>1.0
java.vm.specification.vendor====>Sun Microsystems Inc.
java.vm.specification.name====>Java Virtual Machine Specification
java.vm.version====>1.6.0-b105
java.vm.vendor====>Sun Microsystems Inc.
java.vm.name====>Java HotSpot(TM) Client VM
java.specification.version====>1.6
java.specification.vendor====>Sun Microsystems Inc.
java.specification.name====>Java Platform API Specification
java.class.version====>50.0
java.class.path====>D:/work/filetest
java.library.path====>C:/Program Files/Java/jdk1.6.0/bin;.;C:/WINDOWS/Sun/Java/bin;C:/WINDOWS/system32;C:/WINDOWS;C:/Program Files/Java/jdk1.6.0/bin;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem;"C:/Program Files/Symantec/Norton Ghost 2003/";C:/Program Files/Microsoft SQL Server/90/Tools/binn/
java.io.tmpdir====>C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/
java.compiler====>null
java.ext.dirs====>C:/Program Files/Java/jdk1.6.0/jre/lib/ext;C:/WINDOWS/Sun/Java/lib/ext
os.name Operating====>null
os.arch Operating====>null
os.version Operating====>null
file.separator====>/
path.separator====>;
line.separator====>
user.name====>Administrator
user.home====>C:/Documents and Settings/Administrator
user.dir====>D:/work/filetest