使用Excel工作表作为Java数据库

Question

is there a possible way to compare an input from user in java

with several attribute value in excel sheet?

I am trying to read 6 input from the user (Symptoms) and compare it with

each attribute values in my disease symptoms excel sheet.

disease symptoms is something like this:

------------------------------------------------------------------------
disease_id | disease name | symptoms_1     | symptoms_2    | symptoms_3 |..

    1      |  flu         |  fever         |  dry cough    | headache  |
    2      |  diarrhea    |abdominal cramps| abdominal pain| fever     |

------------------------------------------------------------------------

first, the application will ask:

do you experience any of these symptoms, then it shows all symptoms_1

values in a drop-down list for user to select from it. then the it asks for the next symptoms same way.

ex: if I select fever from the first drop-down list(all values of symptoms_1), in java I want to increase disease 1 and disease 2 by 20% and

then when I select dry cough in the second drop-down list(all values of symptoms_2), so disease_1 will be 40%.

My question is this way is possible in java using excel as a database?

if not please give an idea to solve this problem.

Thanks.

Answer 1

It's possible. Take the Excel file as the database, sheets as tables and columns in sheets as columns for your tables.

1 - You need to add the JDBC ODBC driver to your project.

2 - The code below may help you get the source of your drop-down list (user choices). It assumes that you have an Excel File with a sheet1 being your Symptoms table. sheet1 has columns symptoms_1, symptoms_2, ...

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Main {

    public static Connection getConnection() throws Exception {
    String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
    String url = "jdbc:odbc:excelDB";
    String username = "yourName";
    String password = "yourPass";
    Class.forName(driver);
    return DriverManager.getConnection(url, username, password);
}

public static void main(String args[]) throws Exception {
    Connection conn = null;
    Statement stmt = null;
    ResultSet rs = null;

    conn = getConnection();
    stmt = conn.createStatement();
    String excelQuery = "select symptoms_1 from [Sheet1$]";
    rs = stmt.executeQuery(excelQuery);

    while (rs.next()) {
      //Fill the data for your drop-down list
    }

    rs.close();
    stmt.close();
    conn.close();
  }
}

Hope it helps.