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Building Scalable Applications with Thymeleaf and Spring Boot

Posting Data

Learn how to handle changes made to the data by a user.

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Posting data

We saw how to use @GetMapping to display information to the user. Inevitably, the user will also want to change data. In web terms, we can do this by using HTTP POST with a <form>.

Suppose we have a form to change the name of a team. The controller method to make that possible could look something like this:

Java
@Controller
@RequestMapping("/teams")
public class TeamController {
...
    @PostMapping("/{id}") 
    public String editTeamName(@PathVariable("id") String teamId,
                               @ModelAttribute("editTeamFormData") EditTeamFormDataformData) { 
        service.changeTeamName(teamId, formData.getTeamName()); 
        return "redirect:/teams/all"; 
    }
}
  • Use the @PostMapping annotation to indicate that a POST call to /teams/<id> should be handled by this method.
  • The editTeamFormData is
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