Question

Can someone please please explain to me why the following code works when I run the app in the Eclipse IDE, but it generates an exception when compiled and run on a server?
I just don’t get it….

public class Database {
    Connection conn = null;
    Statement stmt = null;
    ResultSet rs = null;

    public Database() throws SQLException {
    String host = "localhost:3306";
    String schema = "stickmanDatabase";
    String user = "richard";
    String password = "xxxxxxxx";
    String url = "jdbc:mysql://" + host + "/" + schema + "?user=" + user + "&password=" + password;

    try {
        conn = DriverManager.getConnection(url);
    } catch (SQLException e) {
        e.printStackTrace();
        throw e;
    }
}
}

Here’s the stacktrace I’m getting:

java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/stickmanDatabase?user=richard&password=xxxxxxxx
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at stickmanPyramidScheme.server.Database.<init>(Database.java:23)
    at stickmanPyramidScheme.server.LoginVerification.verifyLogin(LoginVerification.java:10)
    at stickmanPyramidScheme.server.StickmanServer.parseAndExecute(StickmanServer.java:55)
    at stickmanPyramidScheme.server.StickmanServer.main(StickmanServer.java:32)

My understanding is that the problem is that I need the file “mysql-connector-java-5.1.18-bin.jar in the build path, which I do. And if I remove it the code no longer works when running within Eclipse.

Any help would be greatly appreciated. Thanks.

…

Per Andrew’s request… I am using Eclipse, on an Ubuntu Linux server.
I can see that “mysql-connector-java-5.1.18-bin.jar” contains “com.mysql.jdbc” which contains the “Driver.class”
The jar is added to the (application directory)/WEB-INF/lib directory. And still getting the same error.

Answer 1

I figured out the problem…
I was under the impression that Eclipse was to take care of getting all the files together, but I needed to add the classpath in the Manifest. Putting it in the manifest worked, but adding a -classpath option nor adding it to my PATHs did not.

Anyone with a similar problem should note that you need to add this to the MANIFEST.MF in the jar that Eclipse creates:

Class-Path: /path/file.jar

With blank line at the end of the file