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checkbox list is not updated to backend when using spring and thymeleaf

 
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<form class="form-horizontal" action="#" data-th-action="@{/admin/role/permission/save}" data-th-object="${permission}" method="post">
<div class="form-group">
<label class="col-sm-5 control-label" data-th-text="#{permission.list.permission.label}">Permission</label>
<div class="col-sm-7">
<input type="text" hidden="hidden" data-th-value="*{id}" data-th-field="*{id}" ></input>
<input type="text" class="form-control" data-th-value="*{permissionname}" data-th-field="*{permissionname}" ></input>
</div>
</div>
<div class="form-group" th:each="role : ${allRoles} ">
<label class="col-sm-5 control-label" data-th-text="${role.rolename}">Role 1</label>
<div class="col-sm-7">
<input type="checkbox" th:field="*{permRoles}" th:value="${role}"></input>
</div>
</div>

<div class="form-group">
<div class="col-sm-offset-5 col-sm-7" >
<button type="submit" class="btn btn-primary" name="action"
data-th-value="#{button.action.save}" data-th-text="#{button.label.save}" >Save</button>
<button type="submit" class="btn btn-default active" name="action"
data-th-value="#{button.action.cancel}" data-th-text="#{button.label.cancel}">Cancel</button>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-5 col-sm-7" >
<p class="text-danger" <br /> >type error


</div>
</div>
</form>enter code here
above is the html code , I have a permission object, and wants to assign list of roles to it by using the checkbox, the pass the object back to controller. But the value is not assigned to permission.permroles.

@RequestMapping(value = "/save", method = RequestMethod.POST)
@PreAuthorize("hasRole('PERMISSION_SAVEORADD')")
public ModelAndView savePermission(@ModelAttribute Permission permission, BindingResult result)
throws PermissionNotFoundException {
System.out.println(permission.getPermRoles().size());

permissionDao.updatePermission(permission);
return new ModelAndView("redirect:/admin/role/permission/list");
}
The above is my controller

please help, i am stuck for days.

thank you in advance
 
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Spring AngularJS Java
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Sorry all,

I had given a wrong answer. Someone please delete this post.
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