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Spring MVC Tutorials 20 - Form Validations 04 (@Pattern; @Past; @Max and some more...) Video Lecture | MVC Tutorials: Web Programming Course - Web Development
FAQs on Spring MVC Tutorials 20 - Form Validations 04 (@Pattern; @Past; @Max and some more...) Video Lecture - MVC Tutorials: Web Programming Course - Web Development
| 1. What is Spring MVC? |  |
Ans. Spring MVC is a framework provided by the Spring framework for building web applications. It follows the Model-View-Controller (MVC) architectural pattern and provides a flexible way to develop web applications by separating the concerns of data, presentation, and interaction.
| 2. What are form validations in Spring MVC? | |
Ans. Form validations in Spring MVC are used to ensure that the user inputs meet certain criteria or constraints. These validations can be applied to form fields to ensure that the data entered by the user is valid and meets the specified requirements. Spring MVC provides various annotations such as @Pattern, @Past, @Max, etc., which can be used to perform form validations.
| 3. How does the @Pattern annotation work in Spring MVC form validations? | |
Ans. The @Pattern annotation in Spring MVC form validations is used to specify a regular expression pattern that the input value must match. This annotation can be applied to a form field and the specified pattern is used to validate the user's input. If the input value does not match the specified pattern, a validation error is generated.
| 4. What does the @Past annotation do in Spring MVC form validations? | |
Ans. The @Past annotation in Spring MVC form validations is used to validate that a date or time field contains a value that is in the past. This annotation can be applied to a form field of type java.util.Date or java.time.LocalDate, and it ensures that the user cannot enter a date or time in the future.
| 5. How can the @Max annotation be used in Spring MVC form validations? | |
Ans. The @Max annotation in Spring MVC form validations is used to validate that a numeric field does not exceed a specified maximum value. This annotation can be applied to a form field of type int, long, float, or double, and it ensures that the user cannot enter a value greater than the specified maximum value.
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Dec 26, 2024 Last updated |
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