MS ACCESS jdbc.odbc连接。 找不到数据源名称/未指定默认驱动程序？

Question

I'm trying to study for a basic SQL test at school but unfortunately I copied the class that we are supposed to use into a project on my pc and I am getting the following error:

java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

package Question1;

// Your name, Q 1
import java.sql.*;
import java.io.*;
import javax.swing.*;

public class GreenWood
{
 // Set up database connection
   private static final String DATABASE_FILE_NAME = "WoodDB.mdb";
   private static final String DRIVER = "jdbc:odbc:DRIVER=" +
   "{Microsoft Access Driver (*.mdb)};" +
   "DBQ=" + new File (DATABASE_FILE_NAME).getAbsolutePath ();
  static
  {
     try
     {
        Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
     }
         catch (ClassNotFoundException e)
        {
           System.out.println ("Class not found");
           e.printStackTrace ();
        }
  }


  private Connection dbcon;
  private BufferedReader keyb = new BufferedReader (new InputStreamReader (System.in));

   public GreenWood ()
  {
     System.out.println ("WoodDB Connection");
     try
     {
        dbcon = DriverManager.getConnection (DRIVER);
        Statement stmt = dbcon.createStatement ();
        System.out.println ("Connection successful\n");

        char choice = ' ';
        do
        {

         //Prints options for user input

           choice = keyb.readLine ().toUpperCase ().charAt (0);
           System.out.println (" ");
           switch (choice)
           {
             //calls query methods based on user input

           }
        }
        while (choice != 'X');
        dbcon.close ();
        System.out.println ("Done");
        Thread.sleep (1000);
        System.exit (0);
     } // try
         catch (Exception e)
        {
        // process exceptions here
           System.out.println ("Connection unsuccessful");
           e.printStackTrace ();
           System.out.println (e.toString ());
        }
  } // HoutSoorte constructor

  //Query Methods
  //Main creates new instance of GreenWood

my WoodDB database is located in the root project directory.

I Have done some troubleshooting and I believe that the problem is the URL of the driver location;

dbcon = DriverManager.getConnection (DRIVER);

DRIVER being:

private static final String DRIVER = "jdbc:odbc:DRIVER=" +
   "{Microsoft Access Driver (*.mdb)};" +
   "DBQ=" + new File (DATABASE_FILE_NAME).getAbsolutePath ();

After about an hour of research I'm still just as confused as I was. If anyone can help this nub programmer(me) by explaining the problem in baby words and how I can fix it, it would be ever appreciated.

Answer 1

Try using 32-bit JVM. I am getting the same error message when trying to connect from 64-bit JVM.

Answer 2

Try the following if it works:

For 64 bit system, Goto: C:\\windows\\sysWOW64. For 32 bit system, Goto: C:\\windows

There is an executable called odbcad32.exe.

Run this exe as administrator to gain access to all the ODBC drivers that come with Microsoft Office, etc.

Create data source named my_data_source and mention the connection string as:

Connection con = DriverManager.getConnection("jdbc:odbc:my_data_source");

Above solution worked in my case.

Please refer: Java Connectivity with MS Access for details.

Answer 3

尝试使用DATABASE_FILE的完整路径名或将其复制到源目录中。