Question

我想在Java中使用FQL从任何页面中提取页面名称，喜欢，talking_about_count和页面信息等数据。我写了如下代码：

public static void main(String[] args) {
            // TODO Auto-generated method stub

    String STR_FACEBOOK_FQL_URL = "https://api.facebook.com/method/fql.query?query=";
    String STR_FACEBOOK_RETURN_FORMAT = "&format=json";
    String STR_FACEBOOK_ACCESS_TOKEN = "&access_token=";
    String FQL_GET_QUERY= "SELECT name,likes,about FROM page WHERE id={page-id}"; 
    String encodedQuery;

       try
          {
             encodedQuery = URLEncoder.encode(FQL_GET_QUERY, "UTF-8");
             String faceBookURL = STR_FACEBOOK_FQL_URL + encodedQuery +   
                                      STR_FACEBOOK_RETURN_FORMAT
                      + STR_FACEBOOK_ACCESS_TOKEN ;

                    URL url = new URL(faceBookURL);
            InputStream is = url.openStream();

            JSONTokener tok = new JSONTokener(is);
                JSONObject result = new JSONObject(tok);
                System.out.println(result.toString());
                is.close();
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

但这显示错误如：

{"request_args":[{"value":"fql.query","key":"method"},{"value":"SELECT likes,name,about FROM page WHERE uid=me()","key":"query"},{"value":"json","key":"format"},{"value":"id|secret","key":"access_token"}],"error_code":602,"error_msg":"likes is not a member of the page table."}

有人可以告诉我，这段代码有什么不对吗？

Answer 1

首先，请不要使用已弃用的端点：

String STR_FACEBOOK_FQL_URL = "https://graph.facebook.com/fql?q=";

是现在的方式。您为page表使用了不存在的字段（请参阅https://developers.facebook.com/docs/reference/fql/page/）。 likes需要替换为fan_count：

String FQL_GET_QUERY= "SELECT name,fan_count,about FROM page WHERE id={page-id}";

如何使用Java中的FQL从Facebook页面中提取数据

1 个答案: