jdbc example: java.lang.NoClassDefFoundError
От | Neil Zanella |
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Тема | jdbc example: java.lang.NoClassDefFoundError |
Дата | |
Msg-id | Pine.LNX.4.30.0111020023010.4242-100000@garfield.cs.mun.ca обсуждение исходный текст |
Ответы |
Re: jdbc example: java.lang.NoClassDefFoundError
Re: jdbc example: java.lang.NoClassDefFoundError Re: jdbc example: java.lang.NoClassDefFoundError |
Список | pgsql-jdbc |
Hello, I have been trying to access the postgresql mailing list archives online but the archives.postgresql.org server as well as a bunch of other postgresql servers appear to be down and the lists are not (yet) archived at <http://www.mail-archive.com/lists.html>. The problem I am experiencing is I have Red Hat 7.1 installed with the postgresql 7.0 stuff including postgresql-jdbc. I have set my CLASSPATH to point to /usr/lib/pgsql/jdbc7.0-1.2.jar and have also installed JDK 1.3.1 and updated the PATH variable accordingly. However I am getting the following error when trying to access a simple postgresql databse. Any ideas of what might have gone wrong? Exception in thread "main" java.lang.NoClassDefFoundError: TestPostgreSQL Thanks, Neil sample code generating the error: import java.sql.*; class TestPostgreSQL { public static void main(String arg[]) throws SQLException, ClassNotFoundException { String db_driver = "org.postgresql.Driver"; String db_site = "jdbc:postgresql:joedb"; String db_user = "joe"; String db_pass = "doe"; Class.forName(db_driver); Connection connection = DriverManager.getConnection(db_site, db_user, db_pass); Statement statement = connection.createStatement(); ResultSet resultset = statement.executeQuery("SELECT * FROM joetable"); System.out.println(resultset.getString("joe_column")); } }
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