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Thread: connectivity problem

  1. #1
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    Default connectivity problem

    hii guys here is the simple code through which i am trying to make the connection but it still getting error .. i followed each and every step given in the netbeans tutorial but still having connection problem dont know what to do ..plzz help ..

     
    import java.sql.*;
    public class samp {
     
        /**
         * @param args the command line arguments
         */
         public samp() {
        }
        public static void main(String[] args) {
            try{ 
            Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
            }catch(ClassNotFoundException e){
                System.out.println(e);
            }
     
            try{
            Connection con = DriverManager.getConnection("jdbc:derby://localhost:1527/career", "admin", "admin");
            Statement stmt = con.createStatement();
     
            ResultSet rs = stmt.executeQuery("SELECT * FROM APP.STUDENTSS");
     
            while (rs.next()) {
            String s = rs.getString("name");
            String n = rs.getString("college");
            System.out.println(s + "   " + n);
        }
            }catch(SQLException e){
                System.err.println(e);
            }                 
     
        }
    }

    error :
     run:
    java.lang.ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver
    java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/career
    BUILD SUCCESSFUL (total time: 0 seconds)


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: connectivity problem

    Make sure the library that contains the Derby driver is on your classpath. I do not use Netbeans and do not know if the driver comes with the software...if not you can download the driver from the Derby project.

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    Default Re: connectivity problem

    will you please elaborate .. how to do that ??

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    Default Re: connectivity problem

    i downloaded the derby 10.8.2.1 and added the jar file to my project but still it has now only one error that is :
     run:
    java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/career
    BUILD SUCCESSFUL (total time: 0 seconds)
    now i am not getting the ClassNotFoundException but have this exception only that i mentioned.. how to eliminate that please specify
    thanks

  5. #5
    Super Moderator copeg's Avatar
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    Default Re: connectivity problem

    Try loading the ClientDriver rather than the EmbeddedDriver. eg Class.forName("org.apache.derby.jdbc.ClientDriver" )

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    Default Re: connectivity problem

    that i have done already but the problem persists.. its really a kind of hitch

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