Manually creating a Spring MVC controller for a JPA entity

If you want to create a custom controller, then Roo offers a controller class command that creates the skeleton structure of a controller and a JSPX view to let you quickly get started.

Let's consider that in our flight-app application we have the following entities:

• Customer: Represents a customer in the flight booking application

• Address: Represents the address of the customer

For the sake of simplicity, let's assume that there is a one-to-one bidirectional relationship between Customer and Address entities, the Customer being the owner of the relationship. The Customer entity has only one field: the customerName and the Address entity has two fields: addressLine1 and addressLine2.

Let's say the flight-app application requires that the Customer and the corresponding Address entities are created from the same form. When the user enters the customer's name and clicks the Add address button (as shown in the next screenshot), then the...