Sample introduction to @ modelattribute annotation in spring MVC

preface

This article introduces the very important annotation @ modelattribute. In spring MVC This annotation can be used on method parameters or method declarations. The main function of this annotation is to bind request or form parameters to model objects. Model objects can be assembled using objects saved in a request or session. Note that the method annotated by @ modelattribute will be executed before the controller method (@ requestmapping annotated), because the model object must be created before the controller method.

Look at the example below

-In the above example, the getaccount method uses the @ modelattribute annotation. This means that the method is executed before the controller's method. This method uses the request parameter to set the model object. This is a way to set values in methods.

summary

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