[JAVA]轉換日期格式long to String，String to long

//方法-轉SQL日期到JAVA(String to long)


public String timetoString(long time) {

SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd");
Date date = new Date(time);
return sf.format(date);
}



//轉JAVA long to Sql(long  to Sql)



String sDt = "19910714";

SimpleDateFormat sdf= new SimpleDateFormat("yyyyMMdd");
Date dt2=null;

try {
dt2 = sdf.parse(sDt);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
long lTime = dt2.getTime();