判断当前操作系统是不是window

/**
  * 判断当前操作系统是不是window
  *
  * @return boolean
  */
 public static boolean isWindows() {
  boolean flag = false;
  if (System.getProperties().getProperty("os.name").toUpperCase()
    .indexOf("WINDOWS") != -1) {
   flag = true;
  }
  return flag;
 }

 

获取ip

InetAddress address = InetAddress.getLocalHost();

  System.out.println("ip:" + address.getHostAddress());