tomcat server folder accessible to web client

Question

I dont know how to set a folder accessible to a web clients direct access.A Client needs to see some images or pdfs in a specified folder in tomcat server. When i hit the direct URL to the files, it returns a 404 error.

below is snapshot of tomcat webapps folder.There is no actual source file related to myapp.

below is snapshot myapp folder.Here is the actual running codes.

Thanks in advance.