关于java:java-Date时间戳TimeStampString-互相转换

import java.sql.Timestamp;import java.text.DateFormat;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Date; /** * 工夫转化工具 date转为工夫戳 工夫戳转date 相互与String的转换 * 所有呈现的String time 格局都必须为(yyyy-MM-dd HH:mm:ss)，否则出错 */public class TimeExchange {     /**     * String(yyyy-MM-dd HH:mm:ss) 转 Date     *      * @param time     * @return     * @throws ParseException     */    // String date = "2010/05/04 12:34:23";    public static Date StringToDate(String time) throws ParseException {                Date date = new Date();        // 留神format的格局要与日期String的格局相匹配        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        try {            date = dateFormat.parse(time);            System.out.println(date.toString());        } catch (Exception e) {            e.printStackTrace();        }         return date;    }     /**     * Date转为String(yyyy-MM-dd HH:mm:ss)     *      * @param time     * @return     */    public static String DateToString(Date time) {        String dateStr = "";        Date date = new Date();        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH/mm/ss");        try {            dateStr = dateFormat.format(time);            System.out.println(dateStr);        } catch (Exception e) {            e.printStackTrace();        }        return dateStr;    }    /**     * String(yyyy-MM-dd HH:mm:ss)转10位工夫戳     * @param time     * @return     */    public static Integer StringToTimestamp(String time){           int times = 0;        try {              times = (int) ((Timestamp.valueOf(time).getTime())/1000);          } catch (Exception e) {              e.printStackTrace();          }        if(times==0){            System.out.println("String转10位工夫戳失败");        }        return times;             }    /**     * 10位int型的工夫戳转换为String(yyyy-MM-dd HH:mm:ss)     * @param time     * @return     */    public static String timestampToString(Integer time){        //int转long时，先进行转型再进行计算，否则会是计算完结后在转型        long temp = (long)time*1000;        Timestamp ts = new Timestamp(temp);          String tsStr = "";          DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");          try {              //办法一              tsStr = dateFormat.format(ts);              System.out.println(tsStr);          } catch (Exception e) {              e.printStackTrace();          }        return tsStr;      }    /**     * 10位工夫戳转Date     * @param time     * @return     */    public static Date TimestampToDate(Integer time){        long temp = (long)time*1000;        Timestamp ts = new Timestamp(temp);          Date date = new Date();          try {              date = ts;              //System.out.println(date);          } catch (Exception e) {              e.printStackTrace();          }          return date;    }    /**     * Date类型转换为10位工夫戳     * @param time     * @return     */    public static Integer DateToTimestamp(Date time){        Timestamp ts = new Timestamp(time.getTime());                return (int) ((ts.getTime())/1000);    }    public static void main(String [] args){        System.out.println(StringToTimestamp("2011-05-09 11:49:45"));        System.out.println(DateToTimestamp(TimestampToDate(StringToTimestamp("2011-05-09 11:49:45"))));    }}