CODEWITHSUNDEEP
javaspringspring-boot
fraccaman
fraccaman

Reputation: 63

Spring Boot HttpMessageNotReadableException

I have this class to represent a User:

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown = true)
@Getter
@Setter
public class UserDto implements Serializable {
    private Long id;
    private String username;
    private String email;
    private String password;
    private Collection<? extends GrantedAuthority> roles;

    public UserDto() {
    }
}

}

What I'm trying to do is to let Spring map @RequestBody of the controller below to a UserDto:

public class AuthController {
    @Autowired
    private UserService userService;
    @Autowired
    private AuthService authService;

    @RequestMapping(value = "signup", method = RequestMethod.POST)
    public ResponseEntity<?> addUser(@RequestBody UserDto userDto) throws Exception {
        UserDto existingUserDto;

        try {
            existingUserDto = userService.save(userDto);
        } catch (Exception e) {
            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
        }
        return new ResponseEntity<>(existingUserDto, HttpStatus.CREATED);
    }
}

But instead what when I try to send a Post request I get the following error from Spring:

Failed to read HTTP message:                 org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Unrecognized token 'username': was expecting ('true', 'false' or 'null')
 at [Source: java.io.PushbackInputStream@2c477da6; line: 1, column: 10]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'username': was expecting ('true', 'false' or 'null')
 at [Source: java.io.PushbackInputStream@2c477da6; line: 1, column: 10]

What I tried to do was declaring a custom MappingJackson2HttpMessageConverter but I didn't get any different result

@Bean
    public MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter() {
        MappingJackson2HttpMessageConverter jsonConverter = new MappingJackson2HttpMessageConverter();
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        jsonConverter.setObjectMapper(objectMapper);
        return jsonConverter;
    }

Here a screen of the requested I'm doing ( with Content-Type: application/json):

PostMan Request

Do you have any idea?

Upvotes: 1

Views: 21243

Answers (1)

Ravindra Ranwala
Ravindra Ranwala

Reputation: 21124

Could you please change your controller method @RequestMapping to the following.

@RequestMapping(value = "", method = RequestMethod.POST, produces = { MediaType.APPLICATION_JSON_UTF8_VALUE })

Also you don't need to add a a custom MappingJackson2HttpMessageConverter to get this thing done.Also make sure you have correct request mapping annotated in your controller.

@Controller
@RequestMapping("/api/users")

Also remove the following annotations in your model class. Add getters and setters to all the properties while keeping the default constructor.

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown = true)
@Getter
@Setter

Hope this helps. happy coding !

Upvotes: 1

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