JAVA获取当前时间的前一天或者前几天时间
SimpleDateFormat sdf=new SimpleDateFormat(“yyyy-MM-dd HH
ss”);
Date date=new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_MONTH, -1);
date = calendar.getTime();
System.out.println(sdf.format(date));
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