System.getProperty

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只贴代码吧

package jijian.test;public class SystemProperty {public static void main(String args[]) {       System.out.println("java_vendor:" + System.getProperty("java.vendor"));       System.out.println("java_vendor_url:"                + System.getProperty("java.vendor.url"));       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("os_name:" + System.getProperty("os.name"));       System.out.println("os_arch:" + System.getProperty("os.arch"));       System.out.println("os_version:" + System.getProperty("os.version"));       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("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_ext_dirs:"               + System.getProperty("java.ext.dirs"));       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"));   }}

结果

java_vendor:Oracle Corporationjava_vendor_url:http://java.oracle.com/java_home:D:\WorkApp\JDK832java_class_version:52.0java_class_path:D:\Workspace2\testUdp\binos_name:Windows 8.1os_arch:x86os_version:6.3user_name:jijianuser_home:C:\Users\jijianuser_dir:D:\Workspace2\testUdpjava_vm_specification_version:1.8java_vm_specification_vendor:Oracle Corporationjava_vm_specification_name:Java Virtual Machine Specificationjava_vm_version:25.25-b02java_vm_vendor:Oracle Corporationjava_vm_name:Java HotSpot(TM) Client VMjava_ext_dirs:D:\WorkApp\JDK832\lib\ext;C:\windows\Sun\Java\lib\extfile_separator:\path_separator:;line_separator:

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