使用rest fb api通过facebook应用程序发送通知

Question

我正在尝试使用restfb api通过facebook应用程序向facebook用户发送通知。尝试发布此类通知时，会显示异常

"com.restfb.exception.FacebookGraphException: Received Facebook error response of type 
GraphMethodException: Unsupported post request". 

以下是我的代码：

FacebookType = facebookAppAccessToken.publish("user_id/notification?access_token=app_access_token"), 
FacebookType.class, Parameter.with("template","send_notification"), 
Parameter.with("href,"sample_link"));

请帮我解决这个问题。提前致谢

Answer 1

public void sendNotification(String externalUserId, String message) {
    AccessToken appAccessToken = new DefaultFacebookClient()
            .obtainAppAccessToken(APP_KEY, APP_SECRET);
    FacebookClient facebookClient = new DefaultFacebookClient(
            appAccessToken.getAccessToken());
    try {
        facebookClient.publish(externalUserId
                + "/notifications", FacebookType.class,
                Parameter.with("template", message));
    } catch (FacebookOAuthException e) {
        if (e.getErrorCode() == 200) {
            //Not an app user
        } else if (e.getErrorCode() == 100) {
            //Message cannot be longer than 180 characters
        }
    }
}

正确处理错误代码。您可以根据自己的要求添加href和ref。 Here是参数的详细信息。