Whenever you get an exception from Spring on your configuration, it is best to scroll to the bottom of your stack trace and work you way up till you see the root cause. This error message will tell you exactly what is the problem. You didn't post the stack trace here, so we can't see. Also you posted your configuration without using the CODE tag to keep the files indentation so it is easier for us to read.
Is this a typo for username
<property name="username" value="scoot" />
Isn't it supposed to be scott not scoot?
Also, I ask this when I see this in configuration. Are you new to Spring and starting to learn? If so, I recommend you look for more updated materials. Your use of <bean name="/JSP/hello_world.html" class="com.contoraller.HelloWorldController"> tells me you are using older style of Spring MVC, which isn't used in today's Spring applications. Today's Spring applications are still backwards compatible. But I highly recommend for new users to use the latest best practices instead.