I can not update my entity using Hibernate, Spring MVC, Thymleaf - spring

Question

Hello I want to update User entity, so in the form edit.html i'm using thymeleaf:
<form action="#" th:action="#{/{id}/edit(id=${user.id})}"
th:object="${user}" method="post">
<div class="md-form">
<input type="text" th:field="*{firstName}"
th:value="${user.firstName}" name="firstName" id="firstName"
class="form-control" /> <label class="active" for="firstName">Prénom</label>
</div>
<div class="md-form">
<input type="text" th:field="*{lastName}"
th:value="${user.lastName}" name="lastName" id="lastName"
class="form-control" /> <label class="active" for="lastName">Nom</label>
</div>
<div class="md-form">
<input type="text" th:field="*{email}" th:value="${user.email}"
name="email" id="email" class="form-control" /> <label
class="active" for="email">email</label>
</div>
<div class="md-form">
<input type="text" th:field="*{password}"
th:value="${user.password}" name="password" id="password"
class="form-control" /> <label class="active" for="password">mot
de passe</label>
</div>
<div class="md-form">
<input type="text" th:field="*{occupation}"
th:value="${user.occupation}" name="occupation" id="occupation"
class="form-control" /> <label class="active" for="occupation">profession</label>
</div>
<div class="md-form">
<input type="text" th:field="*{ville}" th:value="${user.ville}"
name="ville" id="ville" class="form-control" /> <label
class="active" for="ville">ville</label>
</div>
<div>
<input class="btn btn-sm btn-primary waves-effect btn-rounded"
type="submit" value="modifier" />
</div>
</form>
User.java:
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue
private Long id;
private String firstName;
private String lastName;
private String userName;
private int age;
private String ville;
private String email;
private String password;
private String phone;
private String company;
private String occupation;
private String img_profil;
#ManyToMany(mappedBy = "users", cascade = { CascadeType.ALL })
private Set<Discussion> discussion;
UserController.java
#GetMapping("/{userName}/edit")
public String editUser(#PathVariable String userName, Model model) {
User user = ur.findByUserName(userName).get(0);
model.addAttribute(user);
return "edit";
}
#PostMapping("/{id}/edit")
public String updateUser(#ModelAttribute("user") User user, #PathVariable("id") Long id) {
user = ur.findOne(id);
ur.save(user);
return "redirect:/find/" + user.getUserName();
}
UserRepository.java
#Repository
public interface UserRepository extends CrudRepository<User, Long> {
List<User> findByUserName(String userName);
}
PROBLEM is in the console I do not see update request (generated by Hibernate), nothing is changed on the database.

Answer 1

Make the following change in UserController.java:
#PostMapping("/{id}/edit")
public String updateUser(
#ModelAttribute("user") User user,
#PathVariable("id") Long id)
{
//user = ur.findOne(id);
user.setId(id);
ur.save(user);
return "redirect:/find/" + user.getUserName();
}