js fetch

111

  fetch(url, 
  { method: 'post', body: data })
                    .then(response => { if (!response.ok) { throw new Error('Network response was not OK'); } if (response.redirected) { alert('登录超时，请重新登录') } else { return response.text() } })
                    .then(response => { alert(response) })
                    .catch(error => { });