多线程方式增加数据

import java.io.IOException;
import java.sql.SQLException;
import java.text.NumberFormat;

import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;

public class TimeDimesion
{

    public static void main(String[] args) throws IOException, SQLException
    {
        int threadCount = 10;
        int totalSeconds = 3600 * 24;
        int pieceSeconds = totalSeconds / threadCount;
        int startTime = 0;

        int endTime = 0;
        for (int i = 0; i < threadCount; i++)
        {
            if (i < 9)
            {
                startTime = pieceSeconds * i;
                endTime = pieceSeconds * (i + 1) - 1;
                Thread timeDimesionThread = new Thread(new TimeDimesionThread(
                        startTime, endTime));
                timeDimesionThread.start();
            } else
            {
                startTime = pieceSeconds * i;
                endTime = totalSeconds - 1;
                Thread timeDimesionThread = new Thread(new TimeDimesionThread(
                        startTime, endTime));
                timeDimesionThread.start();
            }
        }
    }

    static class TimeDimesionThread implements Runnable
    {

        // 起始时间点
        // 用于分使用。
        private int        startTime = 0;

        private int        endTime   = 0;

        private int        hour      = 0;
        private int        minute    = 0;
        private int        secod     = 0;

        private Connection conn      = null;

        private Statement  stmt      = null;

        public TimeDimesionThread(int startTime, int endTime)
                throws IOException, SQLException
        {
            this.conn = DBConnection.getConnectionInstance();
            this.stmt = (Statement) conn.createStatement();
            this.startTime = startTime;
            this.endTime = endTime;
        }

        @Override
        public void run()
        {
            int i = startTime;
            hour = (int) (startTime / 3600);
            int left_seconds = startTime % 3600;
            minute = (int) (left_seconds / 60);
            secod = left_seconds % 60;
            NumberFormat numberFormat = NumberFormat.getNumberInstance();
            numberFormat.setMaximumIntegerDigits(2);
            numberFormat.setMinimumIntegerDigits(2);
            String sql = "";
            do
            {
                secod++;
                if (secod > 0 && secod % 60 == 0)
                {
                    minute++;
                    secod = 0;
                }
                if (minute > 0 && minute % 60 == 0)
                {
                    hour++;
                    minute = 0;
                }
                sql = "REPLACE INTO `dim_time` (`time_key`, `time_value`, `time_hour`, `time_minute`, `time_second`) VALUES('" +
                        numberFormat.format(hour) +
                        numberFormat.format(minute) +
                        numberFormat.format(secod) +
                        "','" +
                        numberFormat.format(hour) +
                        ":" +
                        numberFormat.format(minute) +
                        ":" +
                        numberFormat.format(secod) +
                        "'," +
                        numberFormat.format(hour) +
                        "," +
                        numberFormat.format(minute) +
                        "," +
                        numberFormat.format(secod) + ");\n";
                try
                {
                    stmt.executeUpdate(sql);
                } catch (SQLException e)
                {
                    e.printStackTrace();
                }
                System.out.println(numberFormat.format(hour) + ":" +
                        numberFormat.format(minute) + ":" +
                        numberFormat.format(secod));
                i++;
            } while (i <= endTime);
        }

        @Override
        protected void finalize() throws Throwable
        {
            this.stmt.close();
            this.conn.close();
            super.finalize();
        }
    }
}

 表结构

CREATE TABLE `dim_time` (
  `time_key` mediumint(8) unsigned NOT NULL COMMENT '时间ID',
  `time_value` time NOT NULL COMMENT '时间值',
  `time_hour` tinyint(3) unsigned NOT NULL COMMENT '小时',
  `time_minute` tinyint(3) unsigned NOT NULL COMMENT '分钟',
  `time_second` tinyint(3) unsigned NOT NULL COMMENT '秒',
  PRIMARY KEY  (`time_key`)
) DEFAULT CHARSET=utf8 COMMENT='时间表'