public Long dayYear( String brithday )
{
//获取当前日期
Date nowDate = new Date();
String dateStr = new SimpleDateFormat("yyyy-MM-dd").format(nowDate);
String date1 = dateStr.substring(0,4);
String date2 = brithday.substring(0,4);
// +1是算上了出生就算一岁
Integer age = Integer.parseInt(date1) - Integer.parseInt(date2) + 1;
System.out.println("今年"+age+"岁");
return age.longValue();
}