Tentando registrar um usuario usando Angular e Java Spring Boot

JAVA

@PostMapping(produces = "application/json",  consumes = "application/json")
    public ResponseEntity<UsuarioDto> saveUsuario(@RequestBody UsuarioForm usuarioForm, UriComponentsBuilder uriBuilder) {
        Usuario usuario = usuarioService.saveUsuario(usuarioForm);
        URI uri = uriBuilder.path("/v1/usuario/{id}")
                .buildAndExpand(usuario.getIdUsuario())
                .toUri();
        return ResponseEntity.created(uri).body(new UsuarioDto(usuario));//201
    }

2020-12-14 10:49:34 WARN  o.s.w.s.m.s.DefaultHandlerExceptionResolver - Resolved [org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'text/plain' not supported]

Console Angular

{"comuna":{"idComuna":"1"},"tipoUsuario":{"idTipoUsuario":"1"},"rut":"11.050.557-6","nombre":"Marcelo","telefono":"666666655","direccion":"rua qualquer","email":"Marcelo"}

nuevo:1 Access to XMLHttpRequest at 'http://localhost:8081/v1/usuario' from origin 'http://localhost:4200' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.