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Thread: Cannot connect Java program to database

  1. #1
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    Question Cannot connect Java program to database

    I am working on my matric java programming project and I need to be able to save data to a Microsoft Access database 2000 format. The following code is the constructor method for my array manager object.

    import java.sql.*;
     
    public class DBManager
    {
     
        private Connection conn;
     
        public DBManager()
        {
            try
            {
                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                String dbname = "database.mdb";
                conn = DriverManager.getConnection("jdbc:odbc:DRIVER={Microsoft Access Driver (*.mdb)};DBQ=" + dbname);
                System.out.println("Connection successful");
     
                Statement s = conn.createStatement();
                String name = "erin";
                String query = "SELECT * FROM Table1 WHERE name = \"" + name + "\";";
                System.out.println(query);
                s.execute(query);
     
                ResultSet rs = s.getResultSet();
            }
            catch (Exception e)
            {
                System.out.println("ERROR: " + e);
                e.printStackTrace();
            }
        }
    }

    And I am getting the following error:
    ERROR: java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
    java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
    	at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6956)
    	at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7113)
    	at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(JdbcOdbc.java:3072)
    	at sun.jdbc.odbc.JdbcOdbcConnection.initialize(JdbcOdbcConnection.java:323)
    	at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:174)
    	at java.sql.DriverManager.getConnection(DriverManager.java:579)
    	at java.sql.DriverManager.getConnection(DriverManager.java:243)
    	at DBManager.<init>(DBManager.java:15)
    	at NewClass.main(NewClass.java:13)

    This is my main method to run the above code:
    public class NewClass {
        public static void main(String[] args)
        {
            DBManager m = new DBManager() ;
        }
    }

    I am using NetBeans IDE 7.0.1 to program this. Could anyone help me identify the problem with this code, which according to the error message is this line:
    conn = DriverManager.getConnection("jdbc:odbc:DRIVER={Microsoft Access Driver (*.mdb)};DBQ=" + dbname);

    If any more information is required, please ask.
    Thanks


  2. #2
    Junior Member psabbate's Avatar
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    Default Re: Cannot connect Java program to database

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  3. #3
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    Default Re: Cannot connect Java program to database

    Create the DSN from administrative tools in your control panel. Create a username and pasword,
    then try this:
    conn=DriverManager. getCOnnection(jdbc : odbc : DSN,user,pws);
    Last edited by Dios; August 29th, 2012 at 10:56 AM.

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