Java - 读取系统属性（System Properties）

• 示例
• 参考

代码：

public class Main {

    public static void main(String[] args) {
        String javaHome = System.getProperty("java.home");
        String javaVendor = System.getProperty("java.vendor");
        String javaVendorUrl = System.getProperty("java.vendor.url");
        String javaVersion = System.getProperty("java.version");
        String osArch = System.getProperty("os.arch");
        String osName = System.getProperty("os.name");
        String osVersion = System.getProperty("os.version");
        String userDir = System.getProperty("user.dir");
        String userHome = System.getProperty("user.home");
        String userName = System.getProperty("user.name");

        System.out.println("Installation directory for Java Runtime Environment (JRE): " + javaHome);
        System.out.println("JRE vendor name: " + javaVendor);
        System.out.println("JRE vendor URL: " + javaVendorUrl);
        System.out.println("JRE version number: " + javaVersion);
        System.out.println("Operating system architecture: " + osArch);
        System.out.println("Operating system name: " + osName);
        System.out.println("Operating system version: " + osVersion);
        System.out.println("User working directory: " + userDir);
        System.out.println("User home directory: " + userHome);
        System.out.println("User account name: " + userName);
    }
}

输出：

Installation directory for Java Runtime Environment (JRE): D:FEclipseeclipsepluginsorg.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_16.0.2.v20210721-1149jre
JRE vendor name: Oracle Corporation
JRE vendor URL: https://java.oracle.com/
JRE version number: 16.0.2
Operating system architecture: amd64
Operating system name: Windows 10
Operating system version: 10.0
User working directory: D:Feclipse-workspacetest
User home directory: C:UsersAdmin
User account name: Admin

System Properties