what is the command object in spring framework [closed]

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Could you please explain about command object in spring frame work with an example?

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from Spring Documentation:

• Command Object - a JavaBean which will be populated with the data from your forms

Think of Command Object as a POJO/JavaBean/etc.. that backs the form in your presentation layer.

Once the form is submitted, all the individual attributes are mapped/bound to this object. On the way up to presentation, Command Object properties may be used to pre/populate the form.

check an example here