java Date

java日期天数修改

public Date getDate(String dates){
    SimpleDateFormat sdf= new SimpleDateFormat("yyyy年-MM月-dd日");
    Date date=null;
    try {
        date = sdf.parse(dates);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    System.out.println(date);
    return date;
}

protected static Date addDateOneDay(Date date){
    if(null==date){
        return date;
    }
    Calendar c=Calendar.getInstance();
     //    c.setTime(date);  设置当前时间
        c.add(Calendar.DATE, 1);//日期加1天
        date=c.getTime();
    return date;
}

protected static String addOneDay(String dates) throws ParseException{
    DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss 'CST' yyyy",Locale.US);
    //把字符串转换成CST日期类型
    Date date = df.parse(dates);
    //System.out.println(date);
    DateFormat sdf = new SimpleDateFormat("yyyy年-MM月-dd日");
    //把CST格式转换成普通日期格式
    String addOneDay=sdf.format(date);
    return addOneDay;
}