根据当前日期获取当前月第一天和最后一天

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根据当前日期获取当前月第一天和最后一天

public static String getTimeMonth(){SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");//可以方便地修改日期格式//获取上月第一天Calendar c4 = Calendar.getInstance();c4.add(Calendar.MONTH, -1);c4.set(Calendar.DAY_OF_MONTH, 1);String bmfirst = sdf.format(c4.getTime());//获取当前月第一天Calendar c1 = Calendar.getInstance();c1.add(Calendar.MONTH, 0);c1.set(Calendar.DAY_OF_MONTH, 1);//设置为1号,当前日期既为本月第一天 String mfirst = sdf.format(c1.getTime());//获取当前月最后一天Calendar c2 = Calendar.getInstance();c2.set(Calendar.DAY_OF_MONTH, c2.getActualMaximum(Calendar.DAY_OF_MONTH));//设置为1号,当前日期既为本月最后一天 String mlast = sdf.format(c2.getTime());//获取下个月第一天Calendar c3 = Calendar.getInstance();c3.set(Calendar.MONTH, c3.get(Calendar.MONTH)+1);c3.set(Calendar.DAY_OF_MONTH, 1);String mfirstnext = sdf.format(c3.getTime());return mfirst+","+mfirstnext;}