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Spring MVC Tutorials 22 - Form Validations 06 (More on custom Form Validation annotation...) Video Lecture | MVC Tutorials: Web Programming Course - Web Development
FAQs on Spring MVC Tutorials 22 - Form Validations 06 (More on custom Form Validation annotation...) Video Lecture - MVC Tutorials: Web Programming Course - Web Development
| 1. What is form validation in Spring MVC? |  |
Form validation in Spring MVC is the process of ensuring that the data entered by the user in a web form meets certain criteria or constraints. It helps in preventing invalid or incomplete data from being submitted and processed.
| 2. How can I perform custom form validation in Spring MVC? | |
To perform custom form validation in Spring MVC, you can create your own validation annotations by implementing the `ConstraintValidator` interface. This allows you to define custom validation rules for specific form fields or objects.
| 3. How do I create a custom validation annotation in Spring MVC? | |
To create a custom validation annotation in Spring MVC, you need to define an annotation with the `@Constraint` meta-annotation and specify the custom validator class using the `validatedBy` attribute. Inside the custom validator class, you can implement the validation logic based on your requirements.
| 4. Can I use multiple custom validation annotations on a single form field in Spring MVC? | |
Yes, you can use multiple custom validation annotations on a single form field in Spring MVC. To do this, you can simply annotate the form field with multiple validation annotations, each representing a different validation rule. During form submission, all the validation rules will be checked for that field.
| 5. How can I display custom error messages for form validation failures in Spring MVC? | |
To display custom error messages for form validation failures in Spring MVC, you can define a message source bean in the Spring configuration file. This bean can be used to store your custom error messages. Then, in your custom validation annotations, you can specify the error message using the `message` attribute, and retrieve the corresponding message from the message source bean using the `@Autowired` annotation.
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Nov 19, 2024 Last updated |
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