判断近期是否过生日的函数

mushme

public static void main(String[] args) {String birthString="01-03";String now="2011-12-20";int recentDays=15;try{SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");Date date=sdf.parse(now);if(compare(date,birthString,recentDays)){System.out.println(recentDays+"日内过生日");}else{System.out.println(recentDays+"日内不会过生日");}}catch(Exception e){e.printStackTrace();}}/** * 要计算今年和明年两年的生日是否符合条件 * @param date * @param birthady * @param days * @return flag 近期过生日返回true，否则返回false */public static boolean compare(Date date,String birthString,int days){boolean flag=false;try{SimpleDateFormat sdf=new SimpleDateFormat("yyyyMM-dd");Date birthday=sdf.parse(date.getYear()+1900+birthString);Date nextBirthday=sdf.parse(date.getYear()+1901+birthString);System.out.println("今日："+date.toLocaleString());System.out.println("今年生日："+birthday.toLocaleString());System.out.println("明年生日："+nextBirthday.toLocaleString());Date end=DateUtil.addDate(date, days);//计算今天days之后的日期if((birthday.after(date)&&birthday.before(end))||nextBirthday.before(end)){//nextBirthday年比当前年大，所以肯定要晚于nowflag=true;}}catch(Exception e){e.printStackTrace();}return flag;}

调用的另外一个工具类的时间添加方法
/**     * 日期相加     * @param date 日期     * @param day 天数     * @return 返回相加后的日期     */    public static java.util.Date addDate(java.util.Date date, int day) {        java.util.Calendar c = java.util.Calendar.getInstance();        c.setTimeInMillis(getMillis(date) + ((long) day) * 24 * 3600 * 1000);        return c.getTime();    }