Java将Unix时间戳转换成指定格式日期

public String TimeStamp2Date(String timestampString, String formats){

Long timestamp = Long.parseLong(timestampString)*1000;

String date = new java.text.SimpleDateFormat(formats).format(new java.util.Date(timestamp));

return date;

}

当调用TimeStampToDate("1252639886", "yyyy-MM-dd HH:mm:ss");

返回值：-11-09 11:31:26

注：此处传入必须为 Long，而非long java.util.Date(Long timestamp)