我完全遵循整合Google登录的说明:
https://developers.google.com/identity/sign-in/web/sign-in#specify_your_apps_client_id
登录有效,但注销会在行中出现javascript错误:
var auth2 = gapi.auth2.getAuthInstance();
错误是:
gapi.auth2 undefined
我按照说明添加了Google平台库:
<script type='text/javascript' src='https://apis.google.com/js/platform.js' async defer></script>
为什么不起作用?
答案 0 :(得分:56)
在同一页面上使用signIn和signOut吗? Div g-signin2加载并插入gapi.auth2所以只要它们在同一页面上就可以工作。
如果signOut位于单独的页面上,则应手动加载并初始化gapi.auth2库。
完整示例(您必须将YOUR_CLIENT_ID替换为您的实际client_id):
<html>
<head>
<meta name="google-signin-client_id" content="YOUR_CLIENT_ID">
</head>
<body>
<script>
function signOut() {
var auth2 = gapi.auth2.getAuthInstance();
auth2.signOut().then(function () {
console.log('User signed out.');
});
}
function onLoad() {
gapi.load('auth2', function() {
gapi.auth2.init();
});
}
</script>
<a href="#" onclick="signOut();">Sign out</a>
<script src="https://apis.google.com/js/platform.js?onload=onLoad" async defer></script>
</body>
</html>