java - 收到 OAuthException : An unexpected error has occurred. 类型的 Facebook 错误响应，请稍后重试您的请求。 (代码 2，子代码为空)

Question

我们使用的是restfb 1.6.14。我在获取公共(public)帖子时收到以下错误。

com.restfb.exception.FacebookOAuthException: Received Facebook error response of
 type OAuthException: An unexpected error has occurred. Please retry your reques
t later. (code 2, subcode null)
        at com.restfb.DefaultFacebookClient$DefaultGraphFacebookExceptionMapper.
exceptionForTypeAndMessage(DefaultFacebookClient.java:964)
        at com.restfb.DefaultFacebookClient.throwFacebookResponseStatusException
IfNecessary(DefaultFacebookClient.java:885)
        at com.restfb.DefaultFacebookClient.makeRequestAndProcessResponse(Defaul
tFacebookClient.java:824)
        at com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.ja
va:765)
        at com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.ja
va:729)
        at com.restfb.DefaultFacebookClient.fetchConnection(DefaultFacebookClien
t.java:271)
        at java.util.TimerThread.mainLoop(Timer.java:512)
        at java.util.TimerThread.run(Timer.java:462)

使用以下代码获取访问 token ，

AccessToken accessToken = new
    DefaultFacebookClient().obtainAppAccessToken(appid,appsecret);
    String token=accessToken.getAccessToken();

使用以下源代码获取公开帖子，

public Connection<Post> publicSearchMessages(String keyword, int limit) {
    Connection<Post> messages = fbClient.fetchConnection("search",
            Post.class, Parameter.with("q", keyword),
            Parameter.with("limit", limit), Parameter.with("type", "post"));

    return messages;
}

为什么会出现这个错误？我该如何解决这个错误？

Answer 1

使用 Graph API 2.0，您无法搜索帖子，即使是公开帖子。