date 依据当前时间获得昨天的日期
date 根据当前时间获得昨天的日期
Date now = new Date();
Date yesterday = new Date();
yesterday.setTime(now.getTime()-24*60*60*1000);//当前时间减去一天的时间
DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
System.out.println("昨天:"+df.format(yesterday));
Date now = new Date();
Date yesterday = new Date();
yesterday.setTime(now.getTime()-24*60*60*1000);//当前时间减去一天的时间
DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
System.out.println("昨天:"+df.format(yesterday));