How can I implement validation in Spring Boot?
An example of an AI chatbot conversation about implementing validation in Spring Boot.
How can I implement validation in Spring Boot?
You can use annotations like @NotNull, @Size, and @Email in your model classes to enforce validation rules.
Can you give me an example of using @NotNull?
Sure! In your model class, you can annotate a field like this: @NotNull private String name; This ensures 'name' cannot be null.
What if I want to customize the error message?
You can customize the message by using the message attribute: @NotNull(message = "Name cannot be null") private String name;.
How do I handle validation errors in the controller?
You can use @Valid annotation in your controller method and handle errors using BindingResult to return custom responses.
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