获取当月第一天和最后一天

JS 获取：

 

获取第一天

    var myDate = new Date();

    var year = myDate.getFullYear();

    var month = myDate.getMonth()+1;

    if (month<10){ month = "0"+month; }

    var firstDay = month+"/"+"01/"+year;

 

获取最后一天

    myDate = new Date(year,month,0);

    var lastDay = month+"/"+myDate.getDate()+"/"+year;

    var firstTime = "00:00:00";

    var lastTime = "23:59:59";

 

 

Java 获取:

 

    Calendar curCal = Calendar.getInstance();

    SimpleDateFormat datef;

 

获取第一天

    curCal.set(Calendar.DATE, 1);

    curCal.roll(Calendar.DATE, -1);

    Date endTime = curCal.getTime();

    String eTime = datef.format(endTime) + " 23:59:59";

 

获取最后一天

    curCal.set(Calendar.DAY_OF_MONTH, 1);

    Date beginTime = curCal.getTime();

    String sTime = datef.format(beginTime) + " 00:00:00";