I explained to Modelandview

The Modelandview category, as its name implies, is an object of model and view in the MVC Web program, but it is only convenient for you to return the two objects at once Holder,model and view are still separate concepts.

If you want to return to the model object, you can use map to collect the model objects and then set it to Modelandview, using this version of Modelandview:

Modelandview (String viewName, Map model)

modelandview ()
This construction method constructs the Modelandview  

instance setting model is more complex. There are three ways to use:
AddObject (Object modelobject)
AddObject (String modelname, Object modelobject)
addallobjects (Map modelmap)

The main one is the above three Method!

2. Modelandview Mav = new modelandview ("Hello"); //Instantiate a Modelandview instance of a view

   
   

4. Mav.addobject ("message", "Hello world!"); //Add a model object with a name

10. return Mav;

I explained to Modelandview