字符串时间与Unix时间戳相互转换

/**
* @Author: wangkun
* @Date  : 2016/1/21 13:43
* @Description : 字符串时间转换为Unix时间戳
*/
public static String date2TimeStamp(String dateString) throws ParseException {
Date date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(dateString);
long unixTimestamp = date.getTime()/1000;
return String.valueOf(unixTimestamp);
}

/**
* @Author: wangkun
* @Date  : 2016/1/21 13:43
* @Description : Unix时间戳转换成字符串时间
*/
public static String timeStamp2Date(String timestampString){
Long timestamp = Long.parseLong(timestampString)*1000;
String date = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new java.util.Date(timestamp));
return date;
}