如何使用 Facebook Java API 将附件添加到墙贴？

Question

嘿， 我在使用stream_publish方法时遇到了一些麻烦，更确切地说是我想要包含的附件​​。 我正在构建一个桌面应用程序，我希望能够在用户墙上发布。该帖子将包含一条消息和一张我将从本地硬盘上传的照片。问题是我不知道如何指定附件的源属性。这是一个代码片段：

Attachment attachment = new Attachment();
AttachmentMedia media = new AttachmentMediaImage("file:/c:/picture.png", "file:/c:/picture.png");
attachment.addMedia(media);
facebook.stream_publish("picture", attachment, null, new Long(xxxxxxxL), null);

我根本不知道如何构造 AttachmentMediaImage 对象。我不断收到以下异常：

com.google.code.facebookapi.FacebookException: One or more of your image records failed to include a valid 'href' field.
    at com.google.code.facebookapi.JsonHelper.parseCallResult(JsonHelper.java:59)
    at com.google.code.facebookapi.ExtensibleClient.extractString(ExtensibleClient.java:2296)
    at com.google.code.facebookapi.ExtensibleClient.stream_publish(ExtensibleClient.java:2150)
    at com.google.code.facebookapi.SpecificReturnTypeAdapter.stream_publish(SpecificReturnTypeAdapter.java:503)
    at MainWindow$1.titleChange(MainWindow.java:64)
    at org.jdesktop.jdic.browser.WebBrowser.dispatchWebBrowserEvent(Unknown Source)
    at org.jdesktop.jdic.browser.NativeEventThread$2.run(Unknown Source)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

任何帮助将不胜感激。谢谢！

Answer 1

创建 AttachmentMediaImage 时，您需要使用公共网络服务器上图像的 URL - 您无法使用此 API 上传本地图像。