@NotNull and @size Spring Validation doesn't work
Question
Problem was solved: The problem is Hibernate Validator 7, which is a JakartaEE implementation and not a JavaEE implementation of the validation API. Use Hibernate Validator 6 which is compatible with Spring 5. For JakartaEE you need Spring 6 which is still in development at this moment. – M. Deinum
So am doing spring and hibernate course and got to @NotNull and @size chapter. I implemented hibernate jar files 1,2,3 4,5,6,7 and I don't get any errors in code, but @NotNull and @Size does not work, There is another post about this problem and I saw no solution there so I had to make new post.
Hibernate validator I implement is hibernate-validator-7.0.3.Final and spring am using is spring-framework-5.3.9
package com.luv2code.springdemo.mvc;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.constraints.Size;
public class Customer {
private String firstName;
@Size(min = 1, message ="is required")
@NotNull( message ="is required")
private String lastName;
public Customer() {
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
/
<%@ taglib prefix= "form" uri="http://www.springframework.org/tags/form" %>
<html>
<head>
<title> Customer registration form</title>
<style>
.error{color:red}
</style>
</head>
<body>
<form:form action ="processForm" modelAttribute = "customer">
First name: <form:input path="firstName" />
<br><br>
Last name: <form:input path="lastName"/>
<form:errors path= "lastName" cssClass = "error"/>
<br><br>
<input type= "submit" value ="Submit" />
</form:form>
</body>
</html>
/
package com.luv2code.springdemo.mvc;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import jakarta.validation.Valid;
@Controller
@RequestMapping("/customer")
public class CustomerController {
@RequestMapping("/showForm")
public String showForm(Model theModel) {
theModel.addAttribute("customer", new Customer());
return "customer-form";
}
@RequestMapping("/processForm")
public String processForm(@Valid @ModelAttribute("customer") Customer theCustomer,
BindingResult theBindingResult) {
if(theBindingResult.hasErrors()) {
return "customer-form";
} else {
return "customer-confirmation";
}
}
}
2 answers
solution1
-2 2022-03-04 21:11:47
try to use @NotNull @NotBlank @Size in this sequence
If you want spaces as valid string then use @NotEmpty
solution2
-2 2022-03-06 14:09:19
I had similar issue.
Replacing:
@jakarta.validation.constraints.NotNull
with
@org.hibernate.validator.constraints.NotBlank
and
@jakarta.validation.constraints.Size
with
@org.hibernate.validator.constraints.Length
helped me
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