使用PreparedStatement没有数据插入到我的数据库中

Question

I have a method below that uses preparedStatements to insert data into my SQL database. Currently it is weather data that gets inserted to mydb.weather_data . For some reason, I have no trouble connecting to my database (not getting any connection errors), but no data actually get inserted into my DB.

I was wondering what the issue would be? The numbers below are all dummy data to test insertion.

The type for my five columns are respectively varChar(10) and Int for the rest of the four.

private static void batchInsertRecordsIntoTable() throws SQLException{
        Connection dbConnection = null;
        PreparedStatement preparedStatement = null;

        String insertTableSQL = "INSERT INTO `mydb`.`weather_data`" 
                + "(`dateTime`,`hourlyTemp`,`dewPoint`,`windSpeed`,`relHum`) VALUES" 
                + "(?,?,?,?,?)";
        try{
            dbConnection = getDBConnection();
            preparedStatement = dbConnection.prepareStatement(insertTableSQL);

            dbConnection.setAutoCommit(false);

            preparedStatement.setString(1, "1111111111"); // dateTime
            preparedStatement.setInt(2, 12); // hourlyTemp
            preparedStatement.setInt(3, 12); // dewPoint
            preparedStatement.setInt(4, 12); //windSpped
            preparedStatement.setInt(5, 12); //relHum
            preparedStatement.addBatch();

            preparedStatement.executeBatch();

            dbConnection.commit();

            System.out.println("Record was inserted into mydb weather_data");

        }catch(SQLException e){
            System.out.println(e.getMessage());
            dbConnection.rollback();
        }finally{
            if(preparedStatement!=null){
                preparedStatement.close();
            }
            if(dbConnection!=null){
                dbConnection.close();
            }
        }
    }

Answer 1

Try this:

private static void batchInsertRecordsIntoTable() throws SQLException{
        Connection dbConnection = null;
        PreparedStatement preparedStatement = null;

        String insertTableSQL = "INSERT INTO mydb.weather_data" 
                + "(dateTime,hourlyTemp,dewPoint,windSpeed,relHum) VALUES" 
                + "(?,?,?,?,?)";
        try{
            dbConnection = getDBConnection();
            preparedStatement = dbConnection.prepareStatement(insertTableSQL);

            dbConnection.setAutoCommit(false);

            preparedStatement.setString(1, "1111111111"); // dateTime
            preparedStatement.setInt(2, 12); // hourlyTemp
            preparedStatement.setInt(3, 12); // dewPoint
            preparedStatement.setInt(4, 12); //windSpped
            preparedStatement.setInt(5, 12); //relHum

            preparedStatement.executeUpdate();

            dbConnection.commit();

            System.out.println("Record was inserted into mydb weather_data");

        }catch(SQLException e){
            System.out.println(e.getMessage());
            dbConnection.rollback();
        }finally{
            if(preparedStatement!=null){
                preparedStatement.close();
            }
            if(dbConnection!=null){
                dbConnection.close();
            }
        }
    }