Question

When trying to connect to mysql I always get this error:

java.sql.SQLException: No suitable driver found for localhost test

I already included the mysql-connector.jar in the /WEB-INF/lib in my app. What else do I need to configure to make it work? Do I need to add something in web.xml? I’m not using the appengine.

Here is my code in the server:

package com.mysql.server;

import java.sql.Connection; 
import java.sql.DriverManager;

import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import com.mysql.client.ConnDb;

public class ConnDbImpl extends RemoteServiceServlet implements ConnDb {
   public Connection con;
   @Override
    public String tryConn() {
     try{
       String host = "localhost";
       String db = "test";
       String driver = "com.mysql.jdbc.Driver";
       String user = "root";
       String pass = "pwd";

       Class.forName(driver).newInstance();
       con = DriverManager.getConnection(host+db, user, pass);
       return "Connected to Database";
     } catch(Exception ex) {
         return ex.toString();
     }    
   } 
}

Answer 1

You will get this exception when the JDBC URL is not accepted by any of the loaded JDBC drivers as per the Driver#acceptsURL() method. You actually forgot the JDBC driver specific URI prefix. For the MySQL JDBC driver this is jdbc:mysql://. The full connection URL should look like this:

con = DriverManager.getConnection("jdbc:mysql://localhost/test", user, pass);

See also:

• Connector/J documentation – Obtaining a connection