$("#btn_login").click(function () {
  var url = "http://192.168.1.106:8007/login";
  var xhr = new XMLHttpRequest();
  xhr.open("POST", url);
  xhr.setRequestHeader("accept", "application/json");
  xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  xhr.onreadystatechange = function () {
    if (xhr.readyState === 4) {
      console.log(xhr.status);
      responseOBJ = JSON.parse(xhr.responseText)
      console.log(responseOBJ.access_token);
      document.cookie = 'jwt_token='+responseOBJ.access_token
      alert('登入成功')
      window.location.replace("/index")
    }
  };
  var data = "grant_type=&username=" + $('#username').val() + "&password="+$('#password').val()+"&scope=&client_id=&client_secret=";
  xhr.send(data);
});