表示当天的表达式

Calendar cal = Calendar.getInstance();

cal.add(Calendar.DATE, -1);

sqlParams.put("yesterday", new SimpleDateFormat("yyyy-MM-dd ").format(cal.getTime()) + "23:59:59");

cal = Calendar.getInstance();

cal.add(Calendar.DATE, +1);

sqlParams.put("tomorrow", new SimpleDateFormat("yyyy-MM-dd ").format(cal.getTime()) + "00:00:00");