public class IptimeStamp 
{
  private SimpleDateFormat sdf = null;//定义simpleDateFormat对象
  private String ip = null;//接受ip地址
  public IptimeStamp(String ip)
  {
	  try 
	  {
		InetAddress addr = InetAddress.getLocalHost();
	    ip = addr.getHostAddress();
	    this.ip = ip;
	  }
	  catch (UnknownHostException e)
	  {
		e.printStackTrace();
	  }
  }
  public String getIptimeRand()//得到IP地址+时间+三位随机数
  {
	  StringBuffer buf = new StringBuffer();
	  if(this.ip!=null)
	  {
		  String s[] = this.ip.split("\\.");
		  for(int i=0;i<s.length;i++)
		  {
			  buf.append(this.addZero(s[i],3));
		  }
	  }
	  buf.append(this.getTimeStamp());
	  Random r = new Random();
	  for(int i=0;i<3;i++)
	  {
		  buf.append(r.nextInt(10));
	  }
	  return buf.toString();
  }
  public String addZero(String str,int len)
  {
	  StringBuffer s = new StringBuffer();
	  s.append(str);
	  while(s.length()< len)
	  {
		  s.insert(0, "0");
      }
	  return s.toString();
  }
  public String getDate()
  {
	  this.sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
	  return this.sdf.format(new Date());
  }
  public String getTimeStamp()
  {
	  this.sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
	  return this.sdf.format(new Date());
  }
}