lotto_backend

Java | Hibernate | VRaptor | PostgreSQL | TomCat

Backend features:

• Register users;
• Save user data (such as: name, email, time and date of registration) in the Database table;
• Validate if the data that the user registers is in accordance with the expected;
• Return error messages to the user if he is registering wrong data.

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I developed the entire MVC Architecture in Java;

- Model: models the database table, with create and update methods; gets and setters to access and change each item in the table as a variable;

- View: each web page is a JSP file (HTML that JAVA understands) and has a controller, I can have methods in the controllers or directly in the JSP;

- Controller: are exactly the files that contain all the methods.

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Video below showing the active TomCat server, code, registration screen and finally the recording of user data in the database.

register.mp4

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Below is a video of data validation returning an error message to the user.

full_validation.mp4

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Below image of the code responsible for the validation.