Problem with Tomcat 6.0 / connector/j / jdk1.6 /JDBC

[codeninja]

Hello,
I'm trying to write a jsp page that calls a java class, which accesses a MYSQL database, and for some reason i get "java.lang.Clas sNotFoundExcept ion: com.mysql.jdbc. Driver" while trying to establish the connection. I tried putting the connector .jar in the WEB-INF\lib, I tried setting the classpath variable to the connector's location, and nothing seems to fix it. Am I using the wrong class for the driver, or is it something else.
Here is the connection code:

import java.sql.*;
import java.util.*;
import javax.swing.*;
import com.sun.rowset. JdbcRowSetImpl;

public class DatabaseApp
{
static Connection connection;
static Statement statement;

static final String JDBC_DRIVER = "com.mysql.jdbc .Driver";
static final String DATABASE_URL = "jdbc:mysql ://localhost/mydatabase?user =blah&password= blahblah";

public DatabaseApp()
{
connection = null;
statement = null;

//connect to the database
try
{
Class.forName(J DBC_DRIVER);
connection = DriverManager.g etConnection(DA TABASE_URL);

//if connected to database, output String
if (!connection.is Closed())
System.out.prin tln("CONNECTED TO THE DATABASE");
}
catch ( SQLException e ) //exception in SQL query
{
e.printStackTra ce();
} // end catch

catch ( ClassNotFoundEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch

/*catch ( InstantiationEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch

catch ( IllegalAccessEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch*/
}
...

Any ideas?

[shegoj]

Hi,

Drop the connector .jar in your $JAVA_HOME/jre/lib/ext directory, then retry your code. If the code works , then the problem has to do with setting your class path, else it could be that you are using bad/wrong .jar.

Hello,
I'm trying to write a jsp page that calls a java class, which accesses a MYSQL database, and for some reason i get "java.lang.Clas sNotFoundExcept ion: com.mysql.jdbc. Driver" while trying to establish the connection. I tried putting the connector .jar in the WEB-INF\lib, I tried setting the classpath variable to the connector's location, and nothing seems to fix it. Am I using the wrong class for the driver, or is it something else.
Here is the connection code:

import java.sql.*;
import java.util.*;
import javax.swing.*;
import com.sun.rowset. JdbcRowSetImpl;

public class DatabaseApp
{
static Connection connection;
static Statement statement;

static final String JDBC_DRIVER = "com.mysql.jdbc .Driver";
static final String DATABASE_URL = "jdbc:mysql ://localhost/mydatabase?user =blah&password= blahblah";

public DatabaseApp()
{
connection = null;
statement = null;

//connect to the database
try
{
Class.forName(J DBC_DRIVER);
connection = DriverManager.g etConnection(DA TABASE_URL);

//if connected to database, output String
if (!connection.is Closed())
System.out.prin tln("CONNECTED TO THE DATABASE");
}
catch ( SQLException e ) //exception in SQL query
{
e.printStackTra ce();
} // end catch

catch ( ClassNotFoundEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch

/*catch ( InstantiationEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch

catch ( IllegalAccessEx ception e ) //exception in Class connection
{
e.printStackTra ce();
} // end catch*/
}
...

Any ideas?

[codeninja]

It is already there. Perhaps it is a problem with the classpath then. What should it be set to? I set it to the directory that the connector .jar file is in (along with the servlet -api and jsp-api .jar files)

[ajos]

It is already there. Perhaps it is a problem with the classpath then. What should it be set to? I set it to the directory that the connector .jar file is in (along with the servlet -api and jsp-api .jar files)

hi, this is how i set it in the environment variables(Class Path)-
;C:\Program Files\mysql-connector-java-5.1.2-beta\mysql-connector-java-5.1.2-beta-bin.jar....begi nning with a semicolon(;)