jdbc批量更新數據

{
        boolean add = true;
        Connection conn = null;
        PreparedStatement pst = null;
        String sql = null;
        try
        {
            conn = this.getConnection();
            conn.setAutoCommit(false);
            //            sql = "MERGE INTO PUSH_NUMBER T1 "
            //                    + " USING (SELECT ? AS MOBILE, ? AS PKG_ID FROM DUAL) T2 "
            //                    + " ON (T2.MOBILE=T1.USER_NUMBER AND T2.PKG_ID=T1.PKG_ID) " + " WHEN NOT MATCHED THEN "
            //                    + " INSERT VALUES(SEQ_PUSH_NUMBER.NEXTVAL,?,?)";
            sql = "insert into PUSH_NUMBER(NUMBER_ID,USER_NUMBER,PKG_ID) values(null,?,?)";
            pst = conn.prepareStatement(sql);
            int num = 0;
            for (String mobile : numbers)
            {
                num++;
                pst.setString(1, mobile);
                pst.setInt(2, pkgId);
                pst.addBatch();
                if (num % 30000 == 0)
                {
                    pst.executeBatch();
                    
                    pst.clearBatch();
                }
            }
            if (num > 0)
            {
                pst.executeBatch();
            }
            
            conn.commit();
        }
        catch (Exception e)
        {
            add = false;
            logger.error("addNumber was failed!", e);
        }
        finally
        {
            if (null != pst)
            {
                pst.close();
            }
            
            if (null != conn)
            {
                conn.close();
            }
            
        }
        return add;
    }

spring jdbc批量入庫

        //採用insert into replace 檢測手機號碼是否存在，存在更新，不存在新增
        String sql = "insert into push_token(token,mobile) values(?,?) on DUPLICATE KEY UPDATE token = ?";
        List<Object[]> args = new ArrayList<Object[]>();
        for (int i = 0; i < tokens.size(); i++) {
            Object[] objects = new Object[]{tokens.get(i), mobiles.get(i), tokens.get(i)};
            args.add(objects);
        }

        //3000條提交一次
        ArrayList<Object[]> temp = new ArrayList<Object[]>(3000);
        List<Object[]> copy = null;
        for (Object[] objects : args) {
            temp.add(objects);
            if (temp.size() >= 3000) {
                copy = (List<Object[]>) temp.clone();
                temp.clear();
                if (temp.isEmpty() && copy.size() >= 3000) {
                    getJdbcTemplate().batchUpdate(sql, copy);
                }
            }
        }
        if (temp.size() > 0) {
            copy = (List<Object[]>) temp.clone();
            temp.clear();
            if (temp.isEmpty() && copy.size() > 0) {
                getJdbcTemplate().batchUpdate(sql, copy);
            }
        }