Usar o onsubmit para submeter o formulário | JavaScript

Não consigo executar o método colocando o onsubmit no formulário

<!doctype html>
<html lang="en">

<head>
  <title>Title</title>
  <!-- Required meta tags -->
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

  <!-- Bootstrap CSS -->
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
    integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
  <link rel="stylesheet" href="css/index.css">
</head>

<body>

  <div class="container-fluid titulo-principal">
    <h2>Nutricionista</h2>
  </div>

  <div class="container conteudo-principal">
    <div class="subtitulo-principal">
      <h3>Meus pacientes</h3>
    </div>

    <div>
      <form onsubmit="controller.adiciona(event)">
        <div class="form-row">
          <div class="col">
            <input id="nome" type="text" class="form-control" placeholder="Primeiro Nome">
          </div>
          <div class="col">
            <input id="sobreNome" type="text" class="form-control" placeholder="Sobrenome">
          </div>
        </div>
        <div class="form-row">
          <div class="col">
            <input id="peso" type="text" class="form-control" placeholder="Peso">
          </div>
          <div class="col">
            <input id="altura" type="text" class="form-control" placeholder="Altura">
          </div>
        </div>
      </form>
      <button type="button" class="btn btn-light botao-enviar">Enviar</button>
    </div>
  </div>

  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
    integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
    crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
    integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
    crossorigin="anonymous"></script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
    integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
    crossorigin="anonymous"></script>
    <script src="js/Model.js"></script>
    <script src="js/Controller.js"></script>
    <script>
      let controller = new Controller()
    </script>
</body>

</html>

Estanciei o controller no html e mesmo assim não foi

class Controller{
    constructor() {
        this.inputNome = $("#nome");
        this.inputSobreNome = $("#sobreNome");
        this.inputPeso = $("#peso");
        this.inputAltura = $("#altura");
    }

    adiciona(event) {
        event.preventDefault();
        alert("ola");
    }
}

também queria saber se tem alguma forma de não ter que estanciar o controller no HTML, não sei se com um método estático