So, I've got a very simple 2 controller Spring MVC app. First controller logs user in and puts it on session like this
model.addAttribute( "user", userDto );
Second controller displays project based on projectId
, but expects user to be in session.
@Controller
@SessionAttributes( "user" )
@RequestMapping( value = "/project" )
public class ProjectController {
...
@GetMapping( "/{projectId}" )
public String get( @PathVariable( "projectId" ) String projectId, @SessionAttribute( "user" ) UserDto userDto, Model model ) {
...
First call to this controller works just fine. However, if user changes project on UI ( through select onchange="'location = /project/<some-id-from-select>"
) I'm getting error message from Spring:
[org.springframework.web.bind.ServletRequestBindingException: Missing session attribute 'user' of type UserDto]
How is it possible that session attribute gets lost after one request? No filters, security or session/request specific configurations are defined in the project.
CodePudding user response:
Well, actually it got fixed much easier: I've forgotten to add @SessionAttributes( "user" )
in first controller, where model.addAttribute( "user", userDto );
gets called. After adding it, everything works like a charm.