Field is always null in Spring Boot Postmapping method - spring-boot

Question

I want to bind my HTML table with all fields to Java code in Spring Boot.
Therefore, I have annotated my method with Postmapping, too.
I was already able to show all the fields in Thymeleaf and I was also able to set the checkBox value ( true / false ) accordingly.
This is my Thymeleaf HTML code:
<form action="#" th:action="#{/mitarbeiterverwaltung}" th:object="${users}" method="post">
<fieldset>
<table border="1" align="center">
<thead>
<tr>
<!-- <th:text = "#{mitarbeiterverwaltung.active}>Active ( Tick ) / Passive</th>-->
<th>Active ( Tick ) / Passive</th>
<th>ID</th>
<th>Username</th>
<th>Anzeigename</th>
<th>Dienstnummer</th>
</tr>
</thead>
<tbody>
<tr th:each="user, itemStat : *{users}">
<td><input th:field="*{users[__${itemStat.index}__].isActive}"
th:checked="${user.isActive}"
class="checkBox"
type="checkBox"
name="checkBox"
/></td>
<td><input th:field="*{users[__${itemStat.index}__].id}"
readonly/></td>
<td><input th:field="*{users[__${itemStat.index}__].username}"
readonly/></td>
<td><input class="anzeigename"
type="text"
name="anzeigename"
th:field="*{users[__${itemStat.index}__].anzeigename}"
th:id="${itemStat.index}"
readonly/></td>
<td><input class="dienstnummer"
type="text"
name="dienstnummer"
th:field="*{users[__${itemStat.index}__].dienstnummer}"
th:id="${itemStat.index}"
readonly/></td>
</tr>
</tbody>
</table>
<br />
<div style="text-align:center;">
<input type="submit" id="submitButton" th:value="Speichern"/>
</div>
</fieldset>
And this is my Java code, where the field isActive of UserCreationDto is always null.
#PostMapping
public String updateActivePassiveUser(#ModelAttribute UserCreationDto userTableSettings,
#RequestParam("checkBox") String checkBoxName, BindingResult result, Model model, Errors errors) {
logger.info("Method {} called in {}", new Object() {}.getClass().getEnclosingMethod().getName(), this.getClass().getName());
if (errors.hasErrors()) {
logger.error("Error in {}", new Object() {}.getClass().getEnclosingMethod().getName());
return "error";
}
List<Benutzer> users = userManagementServiceImpl.getAllUsers();
userManagementServiceImpl.updateActivePassiveUser(1, 0);
return "redirect:/mitarbeiterverwaltung?success";
}
Here is a picture of the field in Java code where the method is annotated with #PostMapping
And so does my #RequestMapping look like:
This is my #RequestMapping method:
#RequestMapping
public String showUserManagement(Model model) {
logger.info("Method {} called in {}", new Object() {}.getClass().getEnclosingMethod().getName(), this.getClass().getName());
List<Benutzer> users = userManagementServiceImpl.getAllUsers();
userForm = userManagementServiceImpl.saveUserForm(users);
model.addAttribute("users", userForm);
return "mitarbeiterverwaltung";
}
My UserCreationDto where all the fields get added to a list:
public class UserCreationDto {
private List<User> users = new ArrayList<>();
public void addUser(User user) {
this.users.add(user);
}
public List<User> getUsers() {
return users;
}
public void setUsers(List<User> users) {
this.users = users;
}
}
And my simple POJO class with all the fields
#Data
public class User {
//#SafeHtml prevents XSS ( Cross-Site Scripting )
#SafeHtml
private String username;
private String password;
private String anzeigename;
private String dienstnummer;
private long id;
private Boolean isActive;
}
The other fields like anzeigename, dienstnummer, id, and username are filled within my Java code, however, isactive is always null.
Maybe, someone can tell me what I am doing wrong here.
Thank you very much in advance.

Answer 1

I think you have to many options set. You don't need th:checked:
<input th:field="*{users[__${itemStat.index}__].isActive}"
class="checkBox"
type="checkBox"
name="checkBox" />

Answer 2

I found another way now, but it is not really nice.
#PostMapping
public String updateActivePassiveUser(#Valid #ModelAttribute("userForm") UserCreationDto userTableSettings,
#RequestParam List<String> searchValues, BindingResult result, Model model, Errors errors) {
The field searchValues contains all the checkBoxes that are ticked.
This is my view:
<td><input type="checkbox"
name="searchValues"
th:value="${user.id}"
th:checked="${user.isActive}"
/>
Now, the only problem that I am having is how to update my column that is of type Boolean in Postgresql?
For accomplishing this task I call this:
userRepo.updateActivePassiveUser(new Boolean("False"), id);
#Modifying
#Query(value = "UPDATE benutzer SET active = :active WHERE id = :id", nativeQuery = true)
#Transactional
void updateActivePassiveUser(#Param("active") Boolean active, #Param("id") long id);
However, the value in my database never changes.
Maybe, someone could give me a last hint, please!