H2 database error: Database may be already in use: “Locked by another process”

Question

I am trying to use the H2 database from a Java application.

I created the database and its tables through the H2 Console and then I try to connect from Java using <

Answer 1

I ran into similar problems running with ORMLite from a web application. I initially got stuck on the syntax to use server mode in the url. The answers above helped with that. Then I had the similar user/password error which was easier to figure out. I did not have to shut anything down or erase any files. The following code worked:

protected ConnectionSource getConnectionSource() throws SQLException {
    String databaseUrl = "jdbc:h2:tcp://localhost/~/test";
    return new JdbcConnectionSource(databaseUrl,"sa","sa");
}

To use H2 in server mode on wildfly, I Modifed connection-url in standalone.xml

     jdbc:h2:tcp://localhost/~/test
               …