Annotate Required Field Attestation For Free

Summary: Using an asterisk to mark required fields is an easy way to improve the usability of your forms. Only marking optional fields makes it difficult for people to fill out the form.

Using Validation Annotations All of the annotations used in the example are standard JSR annotations: @NotNull validates that the annotated property value is not null. @AssertTrue validates that the annotated property value is true.

Required attribute: If you want to make an input mandatory to be entered by the user, you can use the required attribute. This attribute can be used with any input type such as email, URL, text, file, password, checkbox, radio, etc. This can help to make any input field mandatory.

Fields marked with * are mandatory Using an asterisk (*) symbol content authors notify mandatory field. This is said to be one of the accessible modes of identifying a mandatory field, however this method also will be a problem with screen readers in certain times.

Here is some Spring Boot Validation annotations that you may need to use for validating request body: @NotNull : Marks a field as required and cannot be null. @NotBlank : Marks a field as required and cannot be blank. @NotEmpty : Marks a field (including collection, map, or array) as required and cannot be empty.

Fields marked with * are mandatory Using an asterisk (*) symbol content authors notify mandatory field. This is said to be one of the accessible modes of identifying a mandatory field, however this method also will be a problem with screen readers in certain times.

One way to prevent this is to mark the required fields with an asterisk. This will let the user know that they need to fill out all the fields, or they will not be able to submit the form. This is especially important if there are no other visual indicators, such as a message that says ?All fields are required.?