import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Formatter;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
public class test {
	//通過截取cmd流方式得到計算機的配置信息(不好)
	public static List<String> getIpAddress() {
		Process p = null;
		List<String> address = new ArrayList<String>();
		try {
			p = new ProcessBuilder("ipconfig", "/all").start();
		}
		catch (Exception e) {
			return address;
		}
		StringBuffer sb = new StringBuffer();
		//讀取進(jìn)程輸出值
		InputStream inputStream = p.getInputStream();
		BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
		String s = "";
		try {
			while ((s = br.readLine()) != null) {
				sb.append(s + "\n");
			}
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		finally {
			try {
				inputStream.close();
			}
			catch (Exception e) {
				e.printStackTrace();
			}
		}
		System.out.println(sb);
		return address;
	}
	public static void getIpconfig() {
		Map<String, String> map = System.getenv();
		System.out.println(map.get("USERNAME"));
		//獲取用戶名
		System.out.println(map.get("COMPUTERNAME"));
		//獲取計算機名
		System.out.println(map.get("USERDOMAIN"));
		//獲取計算機域名
	}
	//得到計算機的ip地址和mac地址
	public static void getConfig() {
		try {
			InetAddress address = InetAddress.getLocalHost();
			NetworkInterface ni = NetworkInterface.getByInetAddress(address);
			//ni.getInetAddresses().nextElement().getAddress();
			byte[] mac = ni.getHardwareAddress();
			String sIP = address.getHostAddress();
			String sMAC = "";
			Formatter formatter = new Formatter();
			for (int i = 0; i < mac.length; i++) {
				sMAC = formatter.format(Locale.getDefault(), "%02X%s", mac[i],
				            (i < mac.length - 1) ? "-" : "").toString();
			}
			System.out.println("IP：" + sIP);
			System.out.println("MAC：" + sMAC);
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
	//得到計算機的ip,名稱,操作系統(tǒng)名稱,操作系統(tǒng)版本
	public static void Config() {
		try {
			InetAddress addr = InetAddress.getLocalHost();
			String ip = addr.getHostAddress().toString();
			//獲取本機ip
			String hostName = addr.getHostName().toString();
			//獲取本機計算機名稱
			System.out.println("本機IP：" + ip + "\n本機名稱:" + hostName);
			Properties props = System.getProperties();
			System.out.println("操作系統(tǒng)的名稱：" + props.getProperty("os.name"));
			System.out.println("操作系統(tǒng)的版本：" + props.getProperty("os.version"));
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
	//其它的一些東西,會有用到的時候的
	public static void all() {
		Properties props = System.getProperties();
		System.out.println("Java的運行環(huán)境版本：" + props.getProperty("java.version"));
		System.out.println("Java的運行環(huán)境供應(yīng)商：" + props.getProperty("java.vendor"));
		System.out.println("Java供應(yīng)商的URL：" + props.getProperty("java.vendor.url"));
		System.out.println("Java的安裝路徑：" + props.getProperty("java.home"));
		System.out.println("Java的虛擬機規(guī)范版本：" + props.getProperty("java.vm.specification.version"));
		System.out.println("Java的虛擬機規(guī)范供應(yīng)商：" + props.getProperty("java.vm.specification.vendor"));
		System.out.println("Java的虛擬機規(guī)范名稱：" + props.getProperty("java.vm.specification.name"));
		System.out.println("Java的虛擬機實現(xiàn)版本：" + props.getProperty("java.vm.version"));
		System.out.println("Java的虛擬機實現(xiàn)供應(yīng)商：" + props.getProperty("java.vm.vendor"));
		System.out.println("Java的虛擬機實現(xiàn)名稱：" + props.getProperty("java.vm.name"));
		System.out.println("Java運行時環(huán)境規(guī)范版本：" + props.getProperty("java.specification.version"));
		System.out.println("Java運行時環(huán)境規(guī)范供應(yīng)商：" + props.getProperty("java.specification.vender"));
		System.out.println("Java運行時環(huán)境規(guī)范名稱：" + props.getProperty("java.specification.name"));
		System.out.println("Java的類格式版本號：" + props.getProperty("java.class.version"));
		System.out.println("Java的類路徑：" + props.getProperty("java.class.path"));
		System.out.println("加載庫時搜索的路徑列表：" + props.getProperty("java.library.path"));
		System.out.println("默認(rèn)的臨時文件路徑：" + props.getProperty("java.io.tmpdir"));
		System.out.println("一個或多個擴展目錄的路徑：" + props.getProperty("java.ext.dirs"));
		System.out.println("操作系統(tǒng)的名稱：" + props.getProperty("os.name"));
		System.out.println("操作系統(tǒng)的構(gòu)架：" + props.getProperty("os.arch"));
		System.out.println("操作系統(tǒng)的版本：" + props.getProperty("os.version"));
		System.out.println("文件分隔符：" + props.getProperty("file.separator"));
		//在 unix 系統(tǒng)中是＂／＂
		System.out.println("路徑分隔符：" + props.getProperty("path.separator"));
		//在 unix 系統(tǒng)中是＂:＂
		System.out.println("行分隔符：" + props.getProperty("line.separator"));
		//在 unix 系統(tǒng)中是＂/n＂
		System.out.println("用戶的賬戶名稱：" + props.getProperty("user.name"));
		System.out.println("用戶的主目錄：" + props.getProperty("user.home"));
		System.out.println("用戶的當(dāng)前工作目錄：" + props.getProperty("user.dir"));
	}
	public static void main(String[] args) {
		getConfig();
		Config();
		all();
	}
}