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This article is about how Spring MVC automatically injects business classes into the processor. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Automatically inject business classes into the processor

In order for the controller to delegate business logic processing to the relevant business class, you can use the @ Autowired annotation to have Spring automatically inject the actual implementation of the business class into the controller. Such as:

@ Controller publicclassUserController {@ Autowired private UserDAO userDAO; publicString listUser () {/ / handler method to list all users userDAO.list ();} publicString saveUser (User user) {/ / handler method to save/update a user userDAO.save (user);} publicString deleteUser (User user) {/ / handler method to delete a user userDAO.delete (user) } publicString getUser (int userId) {/ / handler method to get a user userDAO.get (userId);}}

In this example, all the business logic related to user management is provided by the implementation of the UserDAO interface. Such as:

InterfaceUserDAO {List list (); void save (User user); void checkLogin (User user);} Thank you for reading! This is the end of the article on "how to automatically inject business classes into the processor". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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