Exception: Spring security error Circular view path [/notes]: would dispatch back to the current handler URL [/notes] again. Check your ViewResolver setup

The error message designates that there’s a problem with the configuration of your ViewResolver. This can happen when the ViewResolver is set up in such a way that it tries to resolve a view with a name that matches the current request URL, causing an infinite loop. To resolve this issue, you should check your ViewResolver configuration and ensure that it’s correctly configured to resolve views without causing circular references. You might need to adjust the view names or the mappings in your application context configuration file. If you’re using annotations to configure your Spring MVC application, ensure that you’re not inadvertently causing circular references by specifying incorrect view names or mappings in your controller methods. Lets understand with an example :

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.List;

@Controller
public class NoteController {

    @Autowired
    private NoteDetailsRepository noteRepo;

    @GetMapping("/notes")
    public List<NoteDetails> getAllDetails() {
        List<NoteDetails> allNotes = noteRepo.findAll();
        return allNotes;
    }
}

To resolve the circular view path issue in your Spring MVC application, you can modify your controller method to return the data without relying on view resolution. Since you’re returning a list of NoteDetails, you can use Spring’s @ResponseBody annotation to directly return the data as JSON without involving view resolution. Here’s how you can modify your code:

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.List;

@RestController
public class NoteController {

    @Autowired
    private NoteDetailsRepository noteRepo;

    @GetMapping("/notes")
    public List<NoteDetails> getAllDetails() {
        List<NoteDetails> allNotes = noteRepo.findAll();
        return allNotes;
    }
}

In this modified code, we’ve added @RestController annotation to the class, which indicates that this controller will directly return the data instead of relying on view resolution.