java.sql.Timestamp 時區是特定的嗎？ - Is java.sql.Timestamp timezone specific?

問題：

I have to store UTC dateTime in DB.我必須將 UTC dateTime 存儲在 DB 中。
I have converted the dateTime given in specific timezone to UTC.我已將特定時區中給出的日期時間轉換爲 UTC。 for that I followed the below code.爲此，我遵循了以下代碼。
My input dateTime is "20121225 10:00:00 Z" timezone is "Asia/Calcutta"我輸入的日期時間是“20121225 10:00:00 Z”時區是“亞洲/加爾各答”
My Server/DB(oracle) is running in the same timezone(IST) "Asia/Calcutta"我的服務器/數據庫（oracle）運行在同一時區（IST）“亞洲/加爾各答”

Get the Date object in this specific Timezone獲取此特定時區中的日期對象

        String date = "20121225 10:00:00 Z";
        String timeZoneId = "Asia/Calcutta";
        TimeZone timeZone = TimeZone.getTimeZone(timeZoneId);

        DateFormat dateFormatLocal = new SimpleDateFormat("yyyyMMdd HH:mm:ss z");
                    //This date object is given time and given timezone
        java.util.Date parsedDate = dateFormatLocal.parse(date + " "  
                         + timeZone.getDisplayName(false, TimeZone.SHORT));

        if (timeZone.inDaylightTime(parsedDate)) {
            // We need to re-parse because we don't know if the date
            // is DST until it is parsed...
            parsedDate = dateFormatLocal.parse(date + " "
                    + timeZone.getDisplayName(true, TimeZone.SHORT));
        }

       //assigning to the java.sql.TimeStamp instace variable
        obj.setTsSchedStartTime(new java.sql.Timestamp(parsedDate.getTime()));

Store into DB存入數據庫

        if (tsSchedStartTime != null) {
            stmt.setTimestamp(11, tsSchedStartTime);
        } else {
            stmt.setNull(11, java.sql.Types.DATE);
        }

OUTPUT輸出

DB (oracle) has stored the same given dateTime: "20121225 10:00:00 not in UTC. DB（oracle）存儲了相同的給定dateTime: "20121225 10:00:00 not in UTC。

I have confirmed from the below sql.我已經從下面的 sql 中確認了。

     select to_char(sched_start_time, 'yyyy/mm/dd hh24:mi:ss') from myTable

My DB server also running on the same timezone "Asia/Calcutta"我的數據庫服務器也在同一時區“亞洲/加爾各答”上運行

It gives me the below appearances它給了我以下外觀

1. Date.getTime() is not in UTC Date.getTime()不是 UTC
2. Or Timestamp is has timezone impact while storing into DB What am I doing wrong here?或者時間戳在存儲到數據庫時有時區影響我在這裏做錯了什麼？

One more question:還有一個問題：

Will timeStamp.toString() print in local timezone like java.util.date does? timeStamp.toString()會像java.util.date那樣在本地時區打印嗎？ Not UTC?不是UTC？

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解決方案：

參考： https://stackoom.com/en/question/x2Oi