借助Sigar API获取操作系统信息

Sigar（全称System Information Gatherer And Reporter，即系统信息收集报表器），它提供了一个开源的跨平台的收集计算机硬件和操作系统信息的API（该API底层接口用C语言编写），本文将演示如何借助Sigar API获取操作系统信息：

package com.ghj.packageoftest;

import java.net.InetAddress;

import org.hyperic.sigar.OperatingSystem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.Who;

/**
 * 借助Sigar API获取操作系统信息
 *
 * @author GaoHuanjie
 */
public class OSTool {

	public static void main(String[] args) throws SigarException {
		Sigar sigar = new Sigar();

		// 取到当前操作系统的名称
		String hostname = "";
		try {
		    hostname = InetAddress.getLocalHost().getHostName();
		} catch (Exception e) {
		    hostname = sigar.getNetInfo().getHostName();
		}
		System.out.println(hostname);

		// 获取当前操作系统的信息
		OperatingSystem operatingSystem = OperatingSystem.getInstance();
		System.out.println("operatingSystem arch：" + operatingSystem.getArch());// 操作系统内核类型如： 386、486、586等x86
		System.out.println("operatingSystem cpuEndian：" + operatingSystem.getCpuEndian());//
		System.out.println("operatingSystem dataModel：" + operatingSystem.getDataModel());//
		System.out.println("operatingSystem description：" + operatingSystem.getDescription());// 系统描述
		System.out.println("operatingSystem machine：" + operatingSystem.getMachine());//
		System.out.println("operatingSystem name：" + operatingSystem.getName());// 操作系统类型
		System.out.println("operatingSystem patchLevel：" + operatingSystem.getPatchLevel());// 操作系统补丁级别
		System.out.println("operatingSystem vendor：" + operatingSystem.getVendor());// 操作系统供应商
		System.out.println("operatingSystem vendorCodeName：" + operatingSystem.getVendorCodeName());// 供应商编码名
		System.out.println("operatingSystem vendorName：" + operatingSystem.getVendorName());// 操作系统供应商名称
		System.out.println("operatingSystem vendorVersion：" + operatingSystem.getVendorVersion());// 操作系统供应商版本
		System.out.println("operatingSystem version：" + operatingSystem.getVersion());// 操作系统的版本号

		// 获取当前系统进程表中的用户信息
		Who whoArray [] = sigar.getWhoList();
		if (whoArray != null) {
		    for (int i = 0; i < whoArray.length; i++) {
		        Who who = whoArray[i];
		        System.out.println("\n~~~~~~~~~" + i + "~~~~~~~~~~~~");
		        System.out.println("who device：" + who.getDevice());
		        System.out.println("who host：" + who.getHost());
		        System.out.println("who time：" + who.getTime());
		        System.out.println("who user：" + who.getUser());// 当前系统进程表中的用户名
		    }
		}
		sigar.close();
	}
}

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