我正在尝试网站上的 Facebook 登录 Javascript SDK 示例。
http://hayageek.com/facebook-javascript-sdk/
代码如下:
<html>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '113455642165175', // Set YOUR APP ID
channelUrl : 'http://hayageek.com/examples/oauth/facebook/oauth-javascript/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
FB.Event.subscribe('auth.authResponseChange', function(response)
{
if (response.status === 'connected')
{
document.getElementById("message").innerHTML += "<br>Connected to Facebook";
//SUCCESS
}
else if (response.status === 'not_authorized')
{
document.getElementById("message").innerHTML += "<br>Failed to Connect";
//FAILED
} else
{
document.getElementById("message").innerHTML += "<br>Logged Out";
//UNKNOWN ERROR
}
});
};
function Login()
{
FB.login(function(response) {
if (response.authResponse)
{
getUserInfo();
} else
{
console.log('User cancelled login or did not fully authorize.');
}
},{scope: 'email,user_photos,user_videos'});
}
function getUserInfo() {
FB.api('/me', function(response) {
var str="<b>Name</b> : "+response.name+"<br>";
str +="<b>Link: </b>"+response.link+"<br>";
str +="<b>Username:</b> "+response.username+"<br>";
str +="<b>id: </b>"+response.id+"<br>";
str +="<b>Email:</b> "+response.email+"<br>";
str +="<input type='button' value='Get Photo' onclick='getPhoto();'/>";
str +="<input type='button' value='Logout' onclick='Logout();'/>";
document.getElementById("status").innerHTML=str;
});
}
function getPhoto()
{
FB.api('/me/picture?type=normal', function(response) {
var str="<br/><b>Pic</b> : <img src='"+response.data.url+"'/>";
document.getElementById("status").innerHTML+=str;
});
}
function Logout()
{
FB.logout(function(){document.location.reload();});
}
// Load the SDK asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
</script>
<div align="center">
<h2>Facebook OAuth Javascript Demo</h2>
<div id="status">
Click on Below Image to start the demo: <br/>
<img src="http://hayageek.com/examples/oauth/facebook/oauth-javascript/LoginWithFacebook.png" style="cursor:pointer;" onclick="Login()"/>
</div>
<br/><br/><br/><br/><br/>
<div id="message">
Logs:<br/>
</div>
</div>
</body>
</html>
当我单击 facebook 登录按钮时，我在 javascript 控制台中看到“登录未定义”错误。我该如何摆脱这个？
最佳答案
发生这种情况是因为您试图在文档准备好之前访问“登录”按钮!尝试以下代码。
$.document.ready(function(){
//Place your code here!
});
关于javascript - 尝试 Facebook Javascript SDK 示例时未定义登录？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20409611/