Обсуждение: CLASS EXCEPTION org.postgresql.Driver
I just installed PostgreSQL 8.1.4.1 and created a dbase named HotelDB. I created tables using the dos (psql) prompt and very successful. The above exception came up when I tried to connect my application using JDBC:
Try{
Class.forName("org.postgresql.Driver").newInstance();
System.out.println("Class Found");
}
catch(ClassNotFoundException ey){System.out.println("CLASS EXCEPTION " + ey.getMessage());}
catch(InstantiationException ey){System.out.println("INSTANCE EXCEPTION " + ey.getMessage());}
catch(IllegalAccessException ey){System.out.println("ACCESS EXCEPTION " + ey.getMessage());}
As advised, I copied postgresql-8.1-405.jdbc3.jar from C:\Program Files\PostgreSQL\8.1\jdbc to my class path and the name of the file included in my environment variable definition:
classpath\postgresql-8.1-405.jdbc3.jar;
when this did not work, I added the whole jdbc folder to my class path: C:\Program Files\PostgreSQL\8.1\jdbc
Since this did not work either I got this zip file ‘postgresql-8.1-405.jdbc3’ and unzip it in my class path and included this path in my environment variables. Still no solution.
Another question, I could not find the folder containing the newly created db(HotelDB) neither the database itself, though, as stated earlier I can work on it using the psql and the pgAdmin.
Please help
email: afolorunsho@cenbank.org
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Hi, Abayomi, Folorunsho, Abayomi wrote: > As advised, I copied postgresql-8.1-405.jdbc3.jar from C:\Program > Files\PostgreSQL\8.1\jdbc to my class path and the name of the file > included in my environment variable definition: > classpath\postgresql-8.1-405.jdbc3.jar; > when this did not work, I added the whole jdbc folder to my class path: > C:\Program Files\PostgreSQL\8.1\jdbc Try giving the full path of the jar file to the -cp command line argument to your JVM. Alternatively, for most cases it works if you copy the jdbc.jar into the lib/ext/ directory of your JRE/JDK. HTH, Markus -- Markus Schaber | Logical Tracking&Tracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org