Creating a Controller (SAP Library - Model View Controller Tutorial)

Creating a Controller

Prerequisites

You have created an empty BSP application for this tutorial.

Procedure

Create a controller within your BSP application.

To do this, choose Create ® Controller.

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On the following dialog box, give the controller a name and add a short description.

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Choose

On the following screen, assign a class name to the controller.

The class does not have to exist yet.

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You navigate to the Class Builder by double-clicking on the controller class.

If the class does not already exist, the system asks you if you want to create it. Choose Yes so that you create a class with the specified name that is derived from CL_BSP_CONTROLLER2.

Note

Each controller class must be derived directly or indirectly from CL_BSP_CONTROLLER2.

Choose the This graphic is explained in the accompanying text

symbol to branch to the change mode in your class.

Select method DO_REQUEST and choose symbol to overwrite the methods.

Generate the required output.

In this example, it is simple HTML:

method DO_REQUEST .

write( '<html><body><H1>' ).

write( 'This is my very first controller' ).

write( '</H1></body></html>' ).

endmethod.

Activate your class and your BSP application.

Before you can test the controller, in Transaction SICF you must also activate the new entry that was automatically created for your BSP application (see also Activating and Deactivating an ICF Service).

In Transaction SICF, select the entry for your BSP application and choose Service/Virt.Host ® Activate.

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Confirm the following confirmation prompts.

You can now test the new controller page that you have created.

Result

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Continue by creating a view.