[英]facebook batch request returns null objects
我正在嘗試創建一種從頁面ID的列表中返回頁面名稱和頁面照片的方法,請求似乎返回null,對於該問題的解決方案將與建議的一種更好的方法相同,試圖實現。
public void getPages(){
for(int f=0;f<Json.PI;f++){
final int j = f;
final Request photo = new Request(
null,
"/" + PhotoId,
null,
HttpMethod.GET,
new Request.Callback() {
public void onCompleted(Response response) {
GraphObject graphObject = response.getGraphObject();
JSONObject jsonObject = graphObject.getInnerJSONObject();
try {
PageInfo[j][1] = (String) jsonObject.get("picture");
Log.i("PICTURE", PageInfo[j][1]);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
);
final Request photos = new Request(
MainFragment.activeSession,
"/"+likes[f]+"/photos/uploaded",
null,
HttpMethod.GET,
new Request.Callback() {
public void onCompleted(Response response) {
GraphObject graphObject = response.getGraphObject();
JSONObject jsonObject = graphObject.getInnerJSONObject();
try {
JSONArray array = jsonObject.getJSONArray("data");
JSONObject object = (JSONObject) array.get(0);
Log.i("PHOTOID", (String) object.get("id"));
PhotoId = (String) object.get("id");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.i("PNAME", String.valueOf(response));
}
}
);
Request PageID = new Request(MainFragment.activeSession, "/"+likes[f], null, HttpMethod.GET, new Request.Callback() {
public void onCompleted(Response response) {
Log.i("RESP", String.valueOf(response));
}
}
);
Requests.add(PageID);
Requests.add(photos);
Log.i("TAG", "ADDED");
}
Requests.executeAsync();
來自facebook的回復如下
{Response: responseCode: 400, graphObject: null, error: {HttpStatus: -1, errorCode: -1, errorType: null, errorMessage: Unexpected number of results}, isFromCache:false}
為什么返回null?
為什么不使用FQL查詢:
select page_id, name, pic from page where page_id in ({your_comma_separated_list_of_page_ids})
然后,這僅需要一個請求。 使用
GET /fql?q={your_urlencoded_query}&access_token={your_access_token}
端點。
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