Question

我正在建立一个使用google登录的jsp servlet网站。但是当我实施注销时，控制台会说“无法获取属性'getAuthInstance'”

<html lang="en">
  <head>
    <meta name="google-signin-scope" content="profile email">
    <meta name="google-signin-client_id" content="YOUR_CLIENT_ID.apps.googleusercontent.com">
    <script src="https://apis.google.com/js/platform.js" async defer></script>
  </head>
  <body>
    <div class="g-signin2" data-onsuccess="onSignIn" data-theme="dark"></div>
    <a href="#" onclick="signOut();">Sign out</a>
    <script>
      function onSignIn(googleUser) {

        var profile = googleUser.getBasicProfile();
        console.log("ID: " + profile.getId()); 
        console.log('Full Name: ' + profile.getName());
        console.log('Given Name: ' + profile.getGivenName());
        console.log('Family Name: ' + profile.getFamilyName());
        console.log("Image URL: " + profile.getImageUrl());
        console.log("Email: " + profile.getEmail());


        var id_token = googleUser.getAuthResponse().id_token;
        console.log("ID Token: " + id_token);
      };
    </script>
<script>
  function signOut() {
    var auth2 = gapi.auth2.getAuthInstance();
    auth2.signOut().then(function () {
      console.log('User signed out.');
    });
  }
</script>
  </body>
</html>

为什么Google登录后我无法退出

0 个答案: