如何在Facebook上分享一个简单的图像（使用回调）？

Question

目标

通过Facebook的墙壁分享一个简单的图像。

问题

或者，如果某天图像离线：

  

API错误代码：191

     

API错误说明：指定的URL不属于应用程序

     

错误消息：redirect_uri不归应用程序所有。

---

我的问题是：我做错了什么？

场景

首先，我加载Facebook的JavaScript SDK：

<script type="text/javascript">
    window.fbAsyncInit = function() {
        FB.init({
            appId: 'xxx',
            channelUrl: '//localhost/channel.html',
            status: true,
            xfbml: true
        });
    };

    (function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) {
            return;
        }
        js = d.createElement(s);
        js.id = id;
        js.src = "//connect.facebook.net/en_US/all.js";
        fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
</script>

其次，我的应用程序上有以下按钮：

<a href="#" onClick="publishOnFacebook()">
    <i class="icons icon-facebook-big"></i></a>

publishOnFacebook()方法是：

function publishOnFacebook() {
    FB.ui(
        {
            method: 'feed',
            name: 'Facebook Dialogs',
            link: 'https://developers.facebook.com/docs/dialogs/',
            picture: 'http://fbrell.com/f8.jpg',
            caption: 'Reference Documentation',
            description: 'Dialogs provide a simple, 
                          consistent interface for applications to 
                          interface with users.'
        },
        function(response) {
            if (response && response.post_id) {
                alert('Post was published.');
            } else {
                alert('Post was not published.');
            }
        }
    );
}

最后，这是我的应用程序：

Answer 1

尝试以下内容。

<script type="text/javascript">
function publishOnFacebook() {
FB.ui(
  {
    method: 'feed',
    name: 'Facebook Dialogs',
    link: 'http://localhost/',
    picture: 'http://fbrell.com/f8.jpg',
    caption: 'Reference Documentation',
    description: 'Dialogs provide a simple, consistent interface for applications to interface with users.'
  },
  function(response) {
    if (response && response.post_id) {
      alert('Post was published.');
    } else {
      alert('Post was not published.');
    }
  }
);
}
</script>

<a href="#" onClick="publishOnFacebook()">
    <i class="icons icon-facebook-big"></i></a>