取当前时间前后一分钟

一种方法：利用Calendar

 

SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddHHmm");
Calendar c=Calendar.getInstance();
c.add(Calendar.MINUTE, 1);
System.out.println(sdf.format(c.getTime()));
c.add(Calendar.MINUTE, -1);
System.out.println(sdf.format(c.getTime()));