在Java中将毫秒转换为Timestamp

Question

我正在使用System.currentTimeMillis（）并根据用户输入添加日/周/月的值。我怎样才能将其转换为java.sql.Timestamp所以我可以将它保存在mysql中？感谢。

Answer 1

使用构造函数。

new Timestamp(System.currentTimeMillis())

http://docs.oracle.com/javase/7/docs/api/java/sql/Timestamp.html#Timestamp(long)

Answer 2

此代码段用于将时间戳（以毫秒为单位）转换为基于Unix的java.sql.Timestamp

/**
     * Convert the epoch time to TimeStamp
     * 
     * @param timestampInString timestamp as string
     * @return date as timestamp
     */
    public static Timestamp getTimestamp(String timestampInString) {
        if (StringUtils.isNotBlank(timestampInString) && timestampInString != null) {
            Date date = new Date(Long.parseLong(timestampInString));
            DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            format.setTimeZone(TimeZone.getTimeZone("Etc/UTC"));
            String formatted = format.format(date);
            Timestamp timeStamp = Timestamp.valueOf(formatted);
            return timeStamp;
        } else {
            return null;
        }
    }