Обсуждение: JDBC and DriverManager

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JDBC and DriverManager

От
Jeffrey Napolitano
Дата:
Okay...the below code compiles fine, but when it runs, it throws the
SQLException at the DriverManager line (as you can see, everything below
is commented out).  There is indeed a datasource "bugs", and PostgreSQL
is running on the local machine.  There is no password needed to access
the database, and I can access "bugs" interactively with psql.  Am I not
importing a package...?

I need help...am lost to why it throws the SQLException.

------------------------------------------------------------
import java.util.*;
import java.io.*;
import java.sql.*;

public class HopeSprings {
        public static void main(String[] args) {
                String url = "jdbc:postgresql:bugs";
                Connection con;
                String createString;
                createString = "create table STUFF " + "(NAME
varchar(30), " + "IDNUMBER int)";
                Statement stmt;

                try {
                        Class.forName("postgresql.Driver");
                }
                catch(ClassNotFoundException except) {
                        System.out.println("ClassNotFound: didn't
work");
                }

                try {
                        con = DriverManager.getConnection(url);
                        //stmt = con.createStatement();
                        //stmt.executeUpdate(createString);
                        //stmt.close();
                        //con.close();
                }
                catch(SQLException sqlexcept) {
                        System.out.println("The SQL Exception was
thrown");
                }
        } //End of main in JDBC_Connection class
} //End of JDBC_Connection class bracket

Re: [INTERFACES] JDBC and DriverManager

От
Felix Morley Finch
Дата:
>>In article <359BD804.6D60872F@setech.com>, Jeffrey Napolitano <jnapoli@setech.com> writes:

> I need help...am lost to why it throws the SQLException.

It would help to print the exception...

>                 catch(SQLException sqlexcept) {
>                         System.out.println("The SQL Exception was thrown");

 System.out.println("The SQL Exception was " + sqlexcept);

or something like that, I think (brain in assembly mode right now).

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     Felix Finch: scarecrow repairman & rocket surgeon / felix@crowfix.com
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