//获取所有字符串:20131109113501
SimpleDateFormat sp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String time = sp.format(new Date());
String time1 = time.replace("-", "");
String time2 = time1.replace(":", "");
String currTime = time2.replaceAll(" ", "");
//获取字符串2013119113501
long now = System.currentTimeMillis(); // 排序前取得当前时间
Calendar c = Calendar.getInstance();
c.setTimeInMillis(now);
String currTime = String.valueOf(c.get(Calendar.YEAR)) + String.valueOf((c.get(Calendar.MONTH) + 1)) +
String.valueOf(c.get(Calendar.DATE)) + String.valueOf(c.get(Calendar.HOUR)) + String.valueOf(c.get(Calendar.MINUTE)) +
String.valueOf(c.get(Calendar.SECOND));