之前常用的是，和java開發的後臺對接資料，正常也沒有遇到過這個問題，又一次在和php對接的後臺做專案是，時間轉換出了問題，我看了些許時間的程式碼，都沒有問題。最後發現返回時間戳的位數不對，才確認到，問題是出現在這裡

PHP和Java時間戳存在三位位差！！！

所以，在工具類裡面，對於接收伺服器的時間戳，轉換之前，添加了一個判斷，以方便“以防萬一”。

程式碼塊：

   public static String getFetureDate(long expire) {
        //PHP和Java時間戳存在三位位差，用000補齊
        if (String.valueOf(expire).
 
length() == 10) {
            expire = expire * 1000;
        }
        Date date = new Date(expire);
        SimpleDateFormat format = new SimpleDateFormat("MM月dd日");
        String result = format.format(date);
        if (result.startsWith("0")) {
            result = result.substring(1);
        }
        return
 
 result;
    }

以上，則可以列為常用時間轉換的工具類裡的常用方法。
至於其他的時間轉換格式方法，附上一個網路上“遍地都是”的工具類一份也方便大家使用。

// by zhenqi  http://blog.csdn.net/w630886916 
public class DateUtils {  

    public static String getTodayDateTime() {  
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",  
                Locale.getDefault());  
        return
 
 format.format(new Date());  
    }  

    /** 
     * 掉此方法輸入所要轉換的時間輸入例如（"2014年06月14日16時09分00秒"）返回時間戳 
     *  
     * @param time 
     * @return 
     */  
    public String data(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒",  
                Locale.CHINA);  
        Date date;  
        String times = null;  
        try {  
            date = sdr.parse(time);  
            long l = date.getTime();  
            String stf = String.valueOf(l);  
            times = stf.substring(0, 10);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return times;  
    }  

    public static String getTodayDateTimes() {  
        SimpleDateFormat format = new SimpleDateFormat("MM月dd日",  
                Locale.getDefault());  
        return format.format(new Date());  
    }  

    /** 
     * 獲取當前時間 
     *  
     * @return 
     */  
    public static String getCurrentTime_Today() {  
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");  
        return sdf.format(new java.util.Date());  
    }  

    /** 
     * 調此方法輸入所要轉換的時間輸入例如（"2014-06-14-16-09-00"）返回時間戳 
     *  
     * @param time 
     * @return 
     */  
    public static String dataOne(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss",  
                Locale.CHINA);  
        Date date;  
        String times = null;  
        try {  
            date = sdr.parse(time);  
            long l = date.getTime();  
            String stf = String.valueOf(l);  
            times = stf.substring(0, 10);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return times;  
    }  

    public static String getTimestamp(String time, String type) {  
        SimpleDateFormat sdr = new SimpleDateFormat(type, Locale.CHINA);  
        Date date;  
        String times = null;  
        try {  
            date = sdr.parse(time);  
            long l = date.getTime();  
            String stf = String.valueOf(l);  
            times = stf.substring(0, 10);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return times;  
    }  

    /** 
     * 呼叫此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16時09分00秒"） 
     *  
     * @param time 
     * @return 
     */  
    public static String times(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    /** 
     * 呼叫此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14  16:09:00"） 
     *  
     * @param time 
     * @return 
     */  
    public static String timedate(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    /** 
     * 呼叫此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16:09"） 
     *  
     * @param time 
     * @return 
     */  
    public static String timet(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日  HH:mm");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    /** 
     * @param time斜槓分開 
     * @return 
     */  
    public static String timeslash(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd,HH:mm");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    /** 
     * @param time斜槓分開 
     * @return 
     */  
    public static String timeslashData(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
//      int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(lcc * 1000L));  
        return times;  

    }  

    /** 
     * @param time斜槓分開 
     * @return 
     */  
    public static String timeMinute(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("HH:mm");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    public static String tim(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyyMMdd HH:mm");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  
    }  

    public static String time(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  
    }  

    // 呼叫此方法輸入所要轉換的時間戳例如（1402733340）輸出（"2014年06月14日16時09分00秒"）  
    public static String times(long timeStamp) {  
        SimpleDateFormat sdr = new SimpleDateFormat("MM月dd日  #  HH:mm");  
        return sdr.format(new Date(timeStamp)).replaceAll("#",  
                getWeek(timeStamp));  

    }  

    private static String getWeek(long timeStamp) {  
        int mydate = 0;  
        String week = null;  
        Calendar cd = Calendar.getInstance();  
        cd.setTime(new Date(timeStamp));  
        mydate = cd.get(Calendar.DAY_OF_WEEK);  
        // 獲取指定日期轉換成星期幾  
        if (mydate == 1) {  
            week = "週日";  
        } else if (mydate == 2) {  
            week = "週一";  
        } else if (mydate == 3) {  
            week = "週二";  
        } else if (mydate == 4) {  
            week = "週三";  
        } else if (mydate == 5) {  
            week = "週四";  
        } else if (mydate == 6) {  
            week = "週五";  
        } else if (mydate == 7) {  
            week = "週六";  
        }  
        return week;  
    }  

    // 並用分割符把時間分成時間陣列  
    /** 
     * 呼叫此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14-16-09-00"） 
     *  
     * @param time 
     * @return 
     */  
    public String timesOne(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    public static String timesTwo(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        return times;  

    }  

    /** 
     * 並用分割符把時間分成時間陣列 
     *  
     * @param time 
     * @return 
     */  
    public static String[] timestamp(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");  
        @SuppressWarnings("unused")  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        String[] fenge = times.split("[年月日時分秒]");  
        return fenge;  
    }  

    /** 
     * 根據傳遞的型別格式化時間 
     *  
     * @param str 
     * @param type 
     *            例如：yy-MM-dd 
     * @return 
     */  
    public static String getDateTimeByMillisecond(String str, String type) {  

        Date date = new Date(Long.valueOf(str));  

        SimpleDateFormat format = new SimpleDateFormat(type);  

        String time = format.format(date);  

        return time;  
    }  

    /** 
     * 分割符把時間分成時間陣列 
     *  
     * @param time 
     * @return 
     */  
    public String[] division(String time) {  

        String[] fenge = time.split("[年月日時分秒]");  

        return fenge;  

    }  

    /** 
     * 輸入時間戳變星期 
     *  
     * @param time 
     * @return 
     */  
    public static String changeweek(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        Date date = null;  
        int mydate = 0;  
        String week = null;  
        try {  
            date = sdr.parse(times);  
            Calendar cd = Calendar.getInstance();  
            cd.setTime(date);  
            mydate = cd.get(Calendar.DAY_OF_WEEK);  
            // 獲取指定日期轉換成星期幾  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
        if (mydate == 1) {  
            week = "星期日";  
        } else if (mydate == 2) {  
            week = "星期一";  
        } else if (mydate == 3) {  
            week = "星期二";  
        } else if (mydate == 4) {  
            week = "星期三";  
        } else if (mydate == 5) {  
            week = "星期四";  
        } else if (mydate == 6) {  
            week = "星期五";  
        } else if (mydate == 7) {  
            week = "星期六";  
        }  
        return week;  

    }  

    /** 
     * 獲取日期和星期　例如：２０１４－１１－１３　１１:００　星期一 
     *  
     * @param time 
     * @param type 
     * @return 
     */  
    public static String getDateAndWeek(String time, String type) {  
        return getDateTimeByMillisecond(time + "000", type) + "  "  
                + changeweekOne(time);  
    }  

    /** 
     * 輸入時間戳變星期 
     *  
     * @param time 
     * @return 
     */  
    public static String changeweekOne(String time) {  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");  
        long lcc = Long.valueOf(time);  
        int i = Integer.parseInt(time);  
        String times = sdr.format(new Date(i * 1000L));  
        Date date = null;  
        int mydate = 0;  
        String week = null;  
        try {  
            date = sdr.parse(times);  
            Calendar cd = Calendar.getInstance();  
            cd.setTime(date);  
            mydate = cd.get(Calendar.DAY_OF_WEEK);  
            // 獲取指定日期轉換成星期幾  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
        if (mydate == 1) {  
            week = "星期日";  
        } else if (mydate == 2) {  
            week = "星期一";  
        } else if (mydate == 3) {  
            week = "星期二";  
        } else if (mydate == 4) {  
            week = "星期三";  
        } else if (mydate == 5) {  
            week = "星期四";  
        } else if (mydate == 6) {  
            week = "星期五";  
        } else if (mydate == 7) {  
            week = "星期六";  
        }  
        return week;  

    }  

    /** 
     * 獲取當前時間 
     *  
     * @return 
     */  
    public static String getCurrentTime() {  
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");  
        return sdf.format(new java.util.Date());  
    }  

    /** 
     * 輸入日期如（2014年06月14日16時09分00秒）返回（星期數） 
     *  
     * @param time 
     * @return 
     */  
    public String week(String time) {  
        Date date = null;  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");  
        int mydate = 0;  
        String week = null;  
        try {  
            date = sdr.parse(time);  
            Calendar cd = Calendar.getInstance();  
            cd.setTime(date);  
            mydate = cd.get(Calendar.DAY_OF_WEEK);  
            // 獲取指定日期轉換成星期幾  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
        if (mydate == 1) {  
            week = "星期日";  
        } else if (mydate == 2) {  
            week = "星期一";  
        } else if (mydate == 3) {  
            week = "星期二";  
        } else if (mydate == 4) {  
            week = "星期三";  
        } else if (mydate == 5) {  
            week = "星期四";  
        } else if (mydate == 6) {  
            week = "星期五";  
        } else if (mydate == 7) {  
            week = "星期六";  
        }  
        return week;  
    }  

    /** 
     * 輸入日期如（2014-06-14-16-09-00）返回（星期數） 
     *  
     * @param time 
     * @return 
     */  
    public String weekOne(String time) {  
        Date date = null;  
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");  
        int mydate = 0;  
        String week = null;  
        try {  
            date = sdr.parse(time);  
            Calendar cd = Calendar.getInstance();  
            cd.setTime(date);  
            mydate = cd.get(Calendar.DAY_OF_WEEK);  
            // 獲取指定日期轉換成星期幾  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
        if (mydate == 1) {  
            week = "星期日";  
        } else if (mydate == 2) {  
            week = "星期一";  
        } else if (mydate == 3) {  
            week = "星期二";  
        } else if (mydate == 4) {  
            week = "星期三";  
        } else if (mydate == 5) {  
            week = "星期四";  
        } else if (mydate == 6) {  
            week = "星期五";  
        } else if (mydate == 7) {  
            week = "星期六";  
        }  
        return week;  
    }  
}  

Demo就不寫了，直接建立類，貼上複製即可。