<dependency>
<groupId>jakarta.validation</groupId>
<artifactId>jakarta.validation-api</artifactId>
<version>3.0.1</version>
</dependency>
Как проверять что данные которые приходят или содержатся в объекте, удовлетворяют неким требованиям
Validation
<dependency>
<groupId>jakarta.validation</groupId>
<artifactId>jakarta.validation-api</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>7.0.4.Final</version>
</dependency>
<!-- EL API -->
<dependency>
<groupId>jakarta.el</groupId>
<artifactId>jakarta.el-api</artifactId>
<version>4.0.0</version>
</dependency>
<!-- EL IMPL -->
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>jakarta.el</artifactId>
<version>4.0.2</version>
</dependency>
public class User {
@NotNull(message = "Name cannot be null")
private String name;
@AssertTrue
private boolean working;
@Size(min = 10, max = 200, message = "About Me must be between 10 and 200 characters")
private String aboutMe;
@Min(value = 18, message = "Age should not be less than 18")
@Max(value = 150, message = "Age should not be greater than 150")
private int age;
@Email(message = "Email should be valid")
private String email;
// getters and setters
}
public class Example1 {
public static void main(String[] args) {
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
User user = new User();
user.setWorking(true);
user.setAboutMe("Its all about me!");
Set<ConstraintViolation<User>> violations = validator.validate(user);
for (ConstraintViolation<User> violation : violations) {
System.out.println(violation.getMessage());
}
}
}
Apr 12, 2022 7:09:40 AM org.hibernate.validator.internal.util.Version <clinit> INFO: HV000001: Hibernate Validator 7.0.4.Final Age should not be less than 18 Name cannot be null